About Prove 

As the world moves to a mobile-first economy, businesses need to modernize how they acquire, engage with and enable consumers. Prove’s phone-centric identity tokenization and passive cryptographic authentication solutions reduce friction, enhance security and privacy across all digital channels, and accelerate revenues while reducing operating expenses and fraud losses. Over 1,000 enterprise customers use Prove’s platform to process 20 billion customer requests annually across industries, including banking, lending, healthcare, gaming, crypto, e-commerce, marketplaces, and payments. For the latest updates from Prove, follow us on LinkedIn. Prove is driving the future of digital identity. We are looking for Provers who know how to make an impact. We’re talking self-starting professionals who thrive in a fast-paced environment, process information quickly, and make intelligent decisions. The work is challenging and requires not only smart but natural curiosity and tenacity. Teamwork is also important to us – we work together and play together.    Prove has big plans, and we’re excited about the future. If this sounds like the place for you – come join our team!  Title: Senior Software Engineer Department: Engineering  Reports To: Senior Director, Engineering FLSA Status: Exempt  Location: US (Remote) This Senior Software Engineer will be part of the team designing and developing the digital identity infrastructure. Leveraging your knowledge and passion for excellence you will deliver well-thought-out software solutions as part of a fault-tolerant, scalable platform utilizing a variety of cutting-edge technologies. This is a hands-on role where you will need to demonstrate the skills, experience, and confidence to work with other senior engineers and product management team members to deliver solutions that will delight our customers.   Key Responsibilities:

Write well designed, testable, efficient code that meets coding standards. Ensure designs comply with requirements, perform code reviews. Own delivery of software features from inception to production, develop project roadmap, engage with Product to define technical requirements and design, engage with IT/Ops to ensure software makes it out to production in a timely manner. Exercise creative thinking and imagination to find solutions to hard problems. Lead projects and mentor engineers. Promote, maintain, and enhance our cultural values of humility, passion, inclusion, and leadership.

  Qualifications and Experience:

10+ years of software development experience Deep understanding of object-oriented programming and experience with at least one object-oriented programming language (e.g. Python, Java) Experience architecting and developing solutions to complex problems. Experience with public cloud services (AWS or Google Cloud Platform or Azure) Bachelors in computer science or other quantitative fields or relevant experience. Experience with database internals, database language theories, database design, SQL, Graph QL and No SQL technologies. Prior technical leadership experience  AWS Certification DevOps Experience highly desirable Strong passion for learning about our products and markets through in-house and external training. Experience in high growth /pre-IPO Technology companies is a plus.

This position description should not be considered the final description of the position. The position description is not intended to be an all-inclusive list of duties and standards of the positions. It should be assumed that we would, to some extent, structure responsibilities in accordance with the successful candidate’s capabilities and changing business conditions. Incumbents will follow any other instructions, and perform any other related duties, as assigned by their supervisor. The salary range for this role is $145,000 - $180,000 plus company bonus. The offered salary will be determined by the applicant’s education, experience, knowledge, skills, and abilities, as well as location, internal equity, and alignment with market data. Benefits & Perks for FTE Provers:

Competitive salaries & Bonus Plan (for eligible roles) and Equity Plan Modern Health for financial, mental, and physical wellness 401(k) Retirement Plan & Match (US Offices) and Local Country Pension (International Offices) Unlimited Vacation and Flexible hours Comprehensive medical benefits for you and your family ❤️ Emotional & Physical Wellness – Access to wellness services (EAP & Prove Well-Being Reimbursement) Bottomless snacks & beverages for certain office locations Daily GrubHub stipend for lunch if coming into the office (US Offices) A great place to work and connect with other talented Provers like yourself!

Don’t meet every single requirement? Studies have shown that women and people of color are less likely to apply to jobs unless they meet every single qualification. At Prove we are dedicated to building a diverse, inclusive and authentic workplace, so if you’re excited about this role but your past experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyways. You may be just the right candidate for this or other roles. Equal Opportunity Employment:Prove is an equal opportunity employer committed to providing equal employment opportunity for all people regardless of race, color, religion, gender or sexual orientation, age, marital status, national origin, citizenship status, disability, veteran status or other personal characteristics  Privacy & Data Protection:When you are applying for a job at Prove, we collect and use your personal information in the job application process. To understand more about how Prove uses your personal information, please see our Recruitment Privacy Policy on our website.

Apply Now:

About the Company:  Shardeum is building a layer 1, EVM-based, linearly scalable, smart contract platform that provides low gas fees forever while maintaining true decentralization and solid security through dynamic state sharding. Shardeum aims to be a chain capable of onboarding over a billion people to the crypto revolution, while also democratizing accessibility to decentralization. Shardeum’s mission is supported by prominent Venture Capitalists in the blockchain space, and we are on track to become one of the most widely used and well known smart contract platforms in blockchain history.We encourage you to browse our website, Whitepaper, Discord and YouTube channel to learn more about the project. You can even try downloading our validator software and joining our Testnet. We encourage people of all backgrounds to apply. Your talent and potential is what matters most to us. Shardeum is committed to creating an inclusive culture.About The Role: The Engineering team at Shardeum is responsible for delivering the Shardeum Mainnet and developing critical components such as the smart contract platform, consensus layer, and protocol layer. As part of this team, the SDET (Software Development Engineer in Test) will play a key role in ensuring the quality, reliability, and performance of Shardeum’s decentralized platform through robust test automation, debugging, and validation processes. This role is ideal for engineers who have a passion for test automation, load testing, and identifying root causes of bugs to enhance blockchain performance and scalability. If you’re excited about solving unique challenges in the Web3 space and driving innovation in blockchain testing methodologies, we want to hear from you! What You'll Be Doing:

Analyze bug tickets, debug code, and identify the root cause of errors across the Shardeum platform. Design, develop, and maintain test automation frameworks and reusable test scripts to validate core functionality, including nodes, consensus mechanisms, smart contracts, and blockchain transactions. Utilize cutting edge AI tools to make testing faster and more efficient (Cursor, Github Copilot, Windsurf, Cline, etc..) Develop and execute load testing scripts to validate system performance under high transaction loads and varying node configurations. Create comprehensive test coverage through functional, integration, system, and regression testing while optimizing test suites and identifying performance bottlenecks. Develop end-to-end (E2E) test cases for complex workflows, ensuring reliability of consensus protocols and smart contract execution. Collaborate closely with development teams to integrate testing into CI/CD pipelines, improve testing workflows, and troubleshoot dependency failures. Build and maintain internal tools to improve developer experience, productivity, and test efficiency. Troubleshoot highly complex automated testing failures using industry-standard frameworks and custom tools, working with developers and backend partners to triage issues and improve E2E reliability. Develop monitoring tools and utilities to track blockchain-specific performance metrics and test results. Participate actively in agile ceremonies, including sprint planning, stand-ups, and retrospectives, to drive testing best practices. Continuously research and adopt innovative tools, frameworks, and testing methodologies to improve quality, scalability, and efficiency of testing processes.

What We're Looking For:

5+ years of experience in Software Engineering or SDET roles with a focus on testing. Proficiency in programming languages like TypeScript/JavaScript and Node.js, with the ability to develop robust and reusable test scripts. Ability/desire to write Unit Tests in TypeScript/JavaScript and Node.js Proven ability to analyze and debug complex codebases, troubleshoot multi-tier web architecture issues, and identify root causes of failures. Experience integrating automated tests into CI/CD workflows (e.g., GitHub Actions, Jenkins). Expertise in defining and implementing release, regression, and smoke testing strategies for large, multi-team applications. Experience with white-box testing methodologies to ensure deep validation of internal components. Strong problem-solving and critical-thinking skills, particularly in analyzing blockchain-specific issues. You have a tester mindset, are curious, and excel at designing innovative and interesting test scenarios. You are creative in applying proven tools/test frameworks as well as crafting new solutions to challenging problems. Knowledge of Agile/Scrum methodologies and the software development lifecycle. Excellent verbal and written communication skills for clear bug reporting and collaboration across teams.

We'd Love If You Have:

Experience with testing decentralized applications (dApps), consensus protocols, or blockchain platforms. Experience in running nodes within blockchain networks and monitoring performance metrics. Familiarity with blockchain tools and frameworks (e.g., Web3.js, Hardhat, Truffle). Hands-on knowledge and experience with AI tools (Cursor, Github Copilot, Windsurf, Cline, etc...), and the ability to demonstrate how you utilize them in your day to day. Contributions to open-source projects related to testing, automation, or blockchain. A passion for emerging technologies, including Web3, AI, and distributed systems. Experience using or contributing to the Shardeum open-source repos. Familiarity with blockchain performance benchmarks and profiling tools. Knowledge of the Bitcoin and Ethereum whitepapers.

We are building the infrastructure for Web 3.0. It's going to be a rollercoaster ride but promises to be fun.

Apply Now:

About Nimbus

Nimbus is a research team that focuses on developing an Ethereum client and library. We believe that the largest deployment of Ethereum will potentially be on embedded systems and Nimbus is designed to perform well on embedded, mobile and generally resource-restricted devices.

Building the stack from the ground up, we’re translating the latest Ethereum research into practical, performant and reusable libraries to provide a fertile exploration ground for further R&D.

About Nomos

Nomos is a new blockchain designed from the ground up with the original cypherpunk ethos: decentralisation, censorship resistance, permissionless-ness and privacy. It will serve as the trustless agreements layer of the Logos stack. The forthcoming Nomos network will provide a common infrastructure layer upon which communities and aspiring network states can build social, governance, and financial services that uphold their community members’ fundamental rights and values.

The role & responsibilities:

You will join the Nimbus team but work closely with Nomos to consume and provide feedback on specifications, ensuring a deep understanding of both projects. You will:

• Develop a deep understanding of Nimbus and Nomos, including their architectures and designs.
• Consume specifications from Nomos and provide feedback where necessary, clarifying any ambiguities.
• Collaborate with the Nimbus team to identify potential issues or areas for improvement in the specifications.

Requirements:

• Strong understanding of blockchain technology and its underlying principles -> You have been in the blockchain industry for several years and are highly familiar with decentralised technology.
• You care about privacy and building protocols and applications that are truly decentralised, privacy-preserving and censorship-resistant.
• You have a technical background (Software Engineer or similar) & experience in documentation and specification.
• You are proactive and communicative; making things happen comes easily to you.

Bonus points:

• Experience working in an open-source organisation.
• You’ve used Nimbus Client or have worked in a privacy-focused project/organisation.

Hiring process:

• Intro call with our People Ops team
• Interview with Nimbus Team Lead
• Interview with Logos Program Lead

[The steps may change along the way if we see it makes sense to adapt the interview stages, so please consider the above as a guideline.]

Compensation:

The expected compensation for this role is 100k USD. We are happy to pay in any mix of fiat/crypto.

As a Senior Rust Core Engineer at Raiku, you will spearhead our engineering efforts, driving the innovation and implementation of next-generation high-performance distributed systems. You will work with a highly proficient team of core engineers who have all contributed to foundational and novel network components.

We believe in hiring only exceptional individuals who are highly motivated to work on complex core infrastructure challenges and are motivated by a coherent system design philosophy that will drive our industry forward. Expect frequent group discussions on architecture, new design specs and code reviews. We are all deeply committed to frequently shipping quality code.

About Raiku

Raiku is reimagining Solana’s consensus ecosystem by developing software that directly connects validators with purpose-built execution environments. We’re building institutional-grade infrastructure that delivers unprecedented performance, guaranteed transaction inclusion, and deterministic settlement for the next generation of internet-native applications. We unlock radical bandwidth and latency improvements by shifting Solana’s focus to state verification.

About the Engineering Team

As a team, we are building an entire platform written in Rust, which connects the L1 and L2s and allows us to create deeply complex scenarios and interactions with the running network. While your primary focus for this role is Rust and complex interactions with different components, you will likely also be involved in infrastructure (e.g., k8s), script writing, and supporting projects in other languages (e.g., Go). Working at every level of the stack is necessary to understand the big picture and how everything is wired together.

Responsibilities

• Highly motivated to contribute to our mission and be part of something bigger. Excited to work on projects that are ground-breaking and complex.
• Refactor, improve and lead software design implementation
• Communicate effectively with the team and document your code. It is also expected that founding engineers mentor less experienced engineers.
• Read and understand protocol specifications and be able to break them into issues and turn them into Rust code.
• Maintaining a large codebase with many components and keeping it well-designed, future-proofed, modular and highly performant
• Automate security testing processes and benchmarks, creating innovative tools and frameworks for continuously improving our systems.

What You’ll Bring:

• A bachelor’s or master’s degree in Computer Science, Engineering, or a related technical field, coupled with practical experience in blockchain systems.
• At least 3 years of experience in distributed systems, with a deep technical understanding of L1 and L2 architectures.
• Strong proficiency in Rust, with at least 2-3 years of Rust experience.
• Strongly emphasising writing performant and secure code.
• Demonstrated experience in designing, developing, and deploying scalable distributed systems.
• An analytical mindset with the ability to anticipate and mitigate emerging security threats, leveraging a comprehensive understanding of the blockchain landscape.

Preferred Qualifications

• Active open-source contributions in core protocol engineering (such as Firedancer, Reth, Lighthouse, Geth, …).
• Direct involvement in the Solana ecosystem, with contributions to Solana’s runtime, scheduler, or other core systems.
• Experience writing Solana Program Library (SPL) and Anchor or similar frameworks
• Active engagement with the blockchain security research community, evidenced by contributions to open-source projects, publications, or presentations at notable conferences.

Benefits

• Competitive remuneration packages based on iterative market research, including tokens
• Remote-first and self-initiating with flexible hours
• Work with team players who are genuinely excited about their impact and projects.
• A dynamic and collaborative work environment that fosters innovation and recognises individual contributions to collective success
• Opportunities for professional growth and advancement within a rapidly growing technological frontier

Join Tether and Shape the Future of Digital Finance

Why Join Us?

As a Senior Backend Developer, you will be a part of the team that works on the development of Tether backend components

New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.

Scalability - all backend services that power Tether must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.

Security - Security is the most important feature. The Backend Development team is responsible for building all the services and core processes with the highest security principles and standard, in order to protect the safety of the entire user base.

• +6 years of experience working with Nodejs/JavaScript.

• Familiar with microservices architecture

• Have actively participated in the development of a complex platform

• Familiar with Peer-to-Peer technologies

• Good experience in interacting with databases (MySQL, MongoDB)

• Ability to quickly learn new technologies

• Good understanding of security practices

Nice to have

• Experience with blockchain integration

• Comfortable with high-availability concepts

• Ruby, Rust or C++ skills are a plus

• Other technologies of interest: Message queues (Redis), Caches and Job Queues

Apply Now:

Apply Now:

Join Tether and Shape the Future of Digital Finance

Why Join Us?

As a Senior Backend Developer, you will be a part of the team that works on the development of Tether backend components

New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.

Scalability - all backend services that power Tether must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.

Security - Security is the most important feature. The Backend Development team is responsible for building all the services and core processes with the highest security principles and standard, in order to protect the safety of the entire user base.

• +6 years of experience working with Nodejs/JavaScript.

• Familiar with microservices architecture

• Have actively participated in the development of a complex platform

• Familiar with Peer-to-Peer technologies

• Good experience in interacting with databases (MySQL, MongoDB)

• Ability to quickly learn new technologies

• Good understanding of security practices

Nice to have

• Experience with blockchain integration

• Comfortable with high-availability concepts

• Ruby, Rust or C++ skills are a plus

• Other technologies of interest: Message queues (Redis), Caches and Job Queues

Apply Now:

Join Tether and Shape the Future of Digital Finance

Why Join Us?

As a Senior Backend Developer, you will be a part of the team that works on the development of Tether backend components

New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.

Scalability - all backend services that power Tether must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.

Security - Security is the most important feature. The Backend Development team is responsible for building all the services and core processes with the highest security principles and standard, in order to protect the safety of the entire user base.

• +6 years of experience working with Nodejs/JavaScript.

• Familiar with microservices architecture

• Have actively participated in the development of a complex platform

• Familiar with Peer-to-Peer technologies

• Good experience in interacting with databases (MySQL, MongoDB)

• Ability to quickly learn new technologies

• Good understanding of security practices

Nice to have

• Experience with blockchain integration

• Comfortable with high-availability concepts

• Ruby, Rust or C++ skills are a plus

• Other technologies of interest: Message queues (Redis), Caches and Job Queues

Apply Now:

Join Tether and Shape the Future of Digital Finance

Why Join Us?

As a Senior Backend Developer, you will be a part of the team that works on the development of Tether backend components

New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.

Scalability - all backend services that power Tether must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.

Security - Security is the most important feature. The Backend Development team is responsible for building all the services and core processes with the highest security principles and standard, in order to protect the safety of the entire user base.

• +6 years of experience working with Nodejs/JavaScript.

• Familiar with microservices architecture

• Have actively participated in the development of a complex platform

• Familiar with Peer-to-Peer technologies

• Good experience in interacting with databases (MySQL, MongoDB)

• Ability to quickly learn new technologies

• Good understanding of security practices

Nice to have

• Experience with blockchain integration

• Comfortable with high-availability concepts

• Ruby, Rust or C++ skills are a plus

• Other technologies of interest: Message queues (Redis), Caches and Job Queues

Apply Now:

Join Tether and Shape the Future of Digital Finance

Why Join Us?

As a Senior Backend Developer, you will be a part of the team that works on the development of Tether backend components

New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.

Scalability - all backend services that power Tether must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.

Security - Security is the most important feature. The Backend Development team is responsible for building all the services and core processes with the highest security principles and standard, in order to protect the safety of the entire user base.

• +6 years of experience working with Nodejs/JavaScript.

• Familiar with microservices architecture

• Have actively participated in the development of a complex platform

• Familiar with Peer-to-Peer technologies

• Good experience in interacting with databases (MySQL, MongoDB)

• Ability to quickly learn new technologies

• Good understanding of security practices

Nice to have

• Experience with blockchain integration

• Comfortable with high-availability concepts

• Ruby, Rust or C++ skills are a plus

• Other technologies of interest: Message queues (Redis), Caches and Job Queues

Apply Now:

Join Tether and Shape the Future of Digital Finance

Why Join Us?

As a Senior Backend Developer, you will be a part of the team that works on the development of Tether backend components

New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.

Scalability - all backend services that power Tether must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.

Security - Security is the most important feature. The Backend Development team is responsible for building all the services and core processes with the highest security principles and standard, in order to protect the safety of the entire user base.

• +6 years of experience working with Nodejs/JavaScript.

• Familiar with microservices architecture

• Have actively participated in the development of a complex platform

• Familiar with Peer-to-Peer technologies

• Good experience in interacting with databases (MySQL, MongoDB)

• Ability to quickly learn new technologies

• Good understanding of security practices

Nice to have

• Experience with blockchain integration

• Comfortable with high-availability concepts

• Ruby, Rust or C++ skills are a plus

• Other technologies of interest: Message queues (Redis), Caches and Job Queues

Apply Now:

Join Tether and Shape the Future of Digital Finance

Why Join Us?

As a Senior Backend Developer, you will be a part of the team that works on the development of Tether backend components

New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.

Scalability - all backend services that power Tether must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.

Security - Security is the most important feature. The Backend Development team is responsible for building all the services and core processes with the highest security principles and standard, in order to protect the safety of the entire user base.

• +6 years of experience working with Nodejs/JavaScript.

• Familiar with microservices architecture

• Have actively participated in the development of a complex platform

• Familiar with Peer-to-Peer technologies

• Good experience in interacting with databases (MySQL, MongoDB)

• Ability to quickly learn new technologies

• Good understanding of security practices

Nice to have

• Experience with blockchain integration

• Comfortable with high-availability concepts

• Ruby, Rust or C++ skills are a plus

• Other technologies of interest: Message queues (Redis), Caches and Job Queues

Apply Now:

Join Tether and Shape the Future of Digital Finance

Why Join Us?

As a Senior Backend Developer, you will be a part of the team that works on the development of Tether backend components

New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.

Scalability - all backend services that power Tether must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.

Security - Security is the most important feature. The Backend Development team is responsible for building all the services and core processes with the highest security principles and standard, in order to protect the safety of the entire user base.

• +6 years of experience working with Nodejs/JavaScript.

• Familiar with microservices architecture

• Have actively participated in the development of a complex platform

• Familiar with Peer-to-Peer technologies

• Good experience in interacting with databases (MySQL, MongoDB)

• Ability to quickly learn new technologies

• Good understanding of security practices

Nice to have

• Experience with blockchain integration

• Comfortable with high-availability concepts

• Ruby, Rust or C++ skills are a plus

• Other technologies of interest: Message queues (Redis), Caches and Job Queues

Apply Now:

Join Tether and Shape the Future of Digital Finance

Why Join Us?

As a Senior Backend Developer, you will be a part of the team that works on the development of Tether backend components

New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.

Scalability - all backend services that power Tether must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.

Security - Security is the most important feature. The Backend Development team is responsible for building all the services and core processes with the highest security principles and standard, in order to protect the safety of the entire user base.

• +6 years of experience working with Nodejs/JavaScript.

• Familiar with microservices architecture

• Have actively participated in the development of a complex platform

• Familiar with Peer-to-Peer technologies

• Good experience in interacting with databases (MySQL, MongoDB)

• Ability to quickly learn new technologies

• Good understanding of security practices

Nice to have

• Experience with blockchain integration

• Comfortable with high-availability concepts

• Ruby, Rust or C++ skills are a plus

• Other technologies of interest: Message queues (Redis), Caches and Job Queues

Apply Now:

Join Tether and Shape the Future of Digital Finance

Why Join Us?

As a Senior Backend Developer, you will be a part of the team that works on the development of Tether backend components

New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.

Scalability - all backend services that power Tether must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.

Security - Security is the most important feature. The Backend Development team is responsible for building all the services and core processes with the highest security principles and standard, in order to protect the safety of the entire user base.

• +6 years of experience working with Nodejs/JavaScript.

• Familiar with microservices architecture

• Have actively participated in the development of a complex platform

• Familiar with Peer-to-Peer technologies

• Good experience in interacting with databases (MySQL, MongoDB)

• Ability to quickly learn new technologies

• Good understanding of security practices

Nice to have

• Experience with blockchain integration

• Comfortable with high-availability concepts

• Ruby, Rust or C++ skills are a plus

• Other technologies of interest: Message queues (Redis), Caches and Job Queues

Apply Now:

Join Tether and Shape the Future of Digital Finance

Why Join Us?

As a Senior Backend Developer, you will be a part of the team that works on the development of Tether backend components

New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.

Scalability - all backend services that power Tether must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.

Security - Security is the most important feature. The Backend Development team is responsible for building all the services and core processes with the highest security principles and standard, in order to protect the safety of the entire user base.

• +6 years of experience working with Nodejs/JavaScript.

• Familiar with microservices architecture

• Have actively participated in the development of a complex platform

• Familiar with Peer-to-Peer technologies

• Good experience in interacting with databases (MySQL, MongoDB)

• Ability to quickly learn new technologies

• Good understanding of security practices

Nice to have

• Experience with blockchain integration

• Comfortable with high-availability concepts

• Ruby, Rust or C++ skills are a plus

• Other technologies of interest: Message queues (Redis), Caches and Job Queues

Apply Now:

Join Tether and Shape the Future of Digital Finance

Why Join Us?

As a Senior Backend Developer, you will be a part of the team that works on the development of Tether backend components

New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.

Scalability - all backend services that power Tether must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.

Security - Security is the most important feature. The Backend Development team is responsible for building all the services and core processes with the highest security principles and standard, in order to protect the safety of the entire user base.

• +6 years of experience working with Nodejs/JavaScript.

• Familiar with microservices architecture

• Have actively participated in the development of a complex platform

• Familiar with Peer-to-Peer technologies

• Good experience in interacting with databases (MySQL, MongoDB)

• Ability to quickly learn new technologies

• Good understanding of security practices

Nice to have

• Experience with blockchain integration

• Comfortable with high-availability concepts

• Ruby, Rust or C++ skills are a plus

• Other technologies of interest: Message queues (Redis), Caches and Job Queues

Apply Now:

Join Tether and Shape the Future of Digital Finance

Why Join Us?

As a Senior Backend Developer, you will be a part of the team that works on the development of Tether backend components

New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.

Scalability - all backend services that power Tether must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.

Security - Security is the most important feature. The Backend Development team is responsible for building all the services and core processes with the highest security principles and standard, in order to protect the safety of the entire user base.

• +6 years of experience working with Nodejs/JavaScript.

• Familiar with microservices architecture

• Have actively participated in the development of a complex platform

• Familiar with Peer-to-Peer technologies

• Good experience in interacting with databases (MySQL, MongoDB)

• Ability to quickly learn new technologies

• Good understanding of security practices

Nice to have

• Experience with blockchain integration

• Comfortable with high-availability concepts

• Ruby, Rust or C++ skills are a plus

• Other technologies of interest: Message queues (Redis), Caches and Job Queues

Apply Now:

Join Tether and Shape the Future of Digital Finance

Why Join Us?

As a Senior Backend Developer, you will be a part of the team that works on the development of Tether backend components

New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.

Scalability - all backend services that power Tether must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.

Security - Security is the most important feature. The Backend Development team is responsible for building all the services and core processes with the highest security principles and standard, in order to protect the safety of the entire user base.

• +6 years of experience working with Nodejs/JavaScript.

• Familiar with microservices architecture

• Have actively participated in the development of a complex platform

• Familiar with Peer-to-Peer technologies

• Good experience in interacting with databases (MySQL, MongoDB)

• Ability to quickly learn new technologies

• Good understanding of security practices

Nice to have

• Experience with blockchain integration

• Comfortable with high-availability concepts

• Ruby, Rust or C++ skills are a plus

• Other technologies of interest: Message queues (Redis), Caches and Job Queues

Apply Now:

Who we are  We simplify wealth creation. Founded in 2014 in Vienna, Austria by Eric Demuth, Paul Klanschek and Christian Trummer, we’re here to help people trust themselves enough to build their financial freedom — for now and the future. Our user-friendly, trade-everything platform empowers both first-time investors and seasoned experts to invest in the cryptocurrencies, crypto indices, stocks, precious metals and commodities they want — with any sized budget, 24/7. Our global team works across different cultures and time zones, bringing our products to more than 6 million customers, making us one of Europe’s safest and most secure platforms that powers modern investing. Headquartered in Austria but operating across Europe, our products are built by fast-moving, talented, “roll-up-your-sleeves-and-make-it-happen” kind of people. It’s these diverse perspectives and innovative minds operating as ONE TEAM that keep Bitpanda at the cutting edge of our industry. So if you’re someone who thinks big, moves fast and wants to make an impact right from day one, then get ready to join our industry-changing team. Let’s go!Your mission  As a Senior iOS Developer at Bitpanda, you will work on the development of our native iOS app infrastructure as part of a core mobile platform team. You will be responsible for shaping the architecture of our iOS application by driving key initiatives to ensure its quality, scalability, and resilience. What you'll do

Design and maintain the iOS app architecture to ensure a robust foundation. Enhance developer experience and velocity by improving workflows and automating processes. Conduct code reviews to uphold consistency and quality across the codebase. Communicate effectively and work independently to support team goals. Build and enhance modules and developer tools that empower the iOS team to deliver high-quality code efficiently

Who you are

Passionate about mobile platforms and skilled at translating complex requirements into a streamlined, user-friendly trading experience. Proficient in Swift with strong knowledge of iOS best practices, software architecture patterns, UIKit, and SwiftUI. Experienced in building, testing, and refining mobile applications, with a proven track record. Strong UI/UX & design orientation Takes ownership of your work, proactively enhancing and adding value beyond initial requirements. What’s in it for you

Hybrid-working model with 60-Work From Anywhere days* Competitive total compensation package including participation in our stock option plan Market-leading benefits programs and policies shaped by our flexibility-first philosophy* Company-wide and team events — both in-person and virtually! Bitpanda swag to keep you living the brand

And, above all, the opportunity to learn and grow as part of Bitpanda’s incredible journey towards being Europe’s future #1 investment platform. Bitpanda is committed to fostering a fair and equal environment based on trust and mutual respect. We believe that a diverse and inclusive workplace is paramount to our success and we are committed to building a team that represents a wide variety of backgrounds, perspectives, and skills. * These benefits may be adjusted at Bitpanda’s discretion and do not apply to our internships and exceptions to our Hybrid Working policy apply to teams with shift schedules or for folks whose roles require them to be in-office (think: Workplaces team or IT).

Apply Now:

Who we are  We simplify wealth creation. Founded in 2014 in Vienna, Austria by Eric Demuth, Paul Klanschek and Christian Trummer, we’re here to help people trust themselves enough to build their financial freedom — for now and the future. Our user-friendly, trade-everything platform empowers both first-time investors and seasoned experts to invest in the cryptocurrencies, crypto indices, stocks, precious metals and commodities they want — with any sized budget, 24/7. Our global team works across different cultures and time zones, bringing our products to more than 6 million customers, making us one of Europe’s safest and most secure platforms that powers modern investing. Headquartered in Austria but operating across Europe, our products are built by fast-moving, talented, “roll-up-your-sleeves-and-make-it-happen” kind of people. It’s these diverse perspectives and innovative minds operating as ONE TEAM that keep Bitpanda at the cutting edge of our industry. So if you’re someone who thinks big, moves fast and wants to make an impact right from day one, then get ready to join our industry-changing team. Let’s go!Your mission At Bitpanda, we're building a powerful system that handles prices and risk management for various types of investments like stocks, crypto, ETFs, metals, and fiat currencies. You’ll help add new assets to our platform, work with new exchanges, and create tools like price charts and systems for crypto products with leverage. This is a key role where you'll help us build the technology that makes trading and investing in different assets fast, reliable, and easy to use for everyone. What you’ll do 

Drive core technical decisions that shape our architecture, engineering practices, and long-term team vision Build high-performance, scalable backend systems using Python that power Bitpanda’s core trading infrastructure Design and maintain clean, testable, and maintainable code across a robust microservice ecosystem Lead the evolution of our event-driven architecture, helping scale systems for future growth Tackle complex, cross-domain challenges in pricing, hedging, and asset management across crypto, stocks, metals, and more Work in a high-impact environment where your code directly supports critical business functions across the company

Who you are

6+ years of hands on Python development in product-driven environments, building real-world, scalable systems that solve big problems A deep understanding of RESTful APIs, websockets, and network communication, with the ability to design fast, reliable, and clean APIs Experience working with relational and NoSQL databases, always keeping performance and scalability top of mind Strong leadership skills to drive technical initiatives, influence the team’s direction, and guide key architectural decisions Hands-on experience with event-driven architectures, and message brokers like Kafka, RabbitMQ, or SQS — you know how to keep data flowing seamlessly Bonus points if you’ve worked with AWS, have an interest in crypto, blockchain, or stock markets, and/or love the world of DevOps infrastructure

   What’s in it for you

Hybrid-working model with 60-Work From Anywhere days* Competitive total compensation package including participation in our stock option plan Market-leading benefits programs and policies shaped by our flexibility-first philosophy* Company-wide and team events — both in-person and virtually! Bitpanda swag to keep you living the brand

And, above all, the opportunity to learn and grow as part of Bitpanda’s incredible journey towards being Europe’s future #1 investment platform. Bitpanda is committed to fostering a fair and equal environment based on trust and mutual respect. We believe that a diverse and inclusive workplace is paramount to our success and we are committed to building a team that represents a wide variety of backgrounds, perspectives, and skills. * These benefits may be adjusted at Bitpanda’s discretion and do not apply to our internships and exceptions to our Hybrid Working policy apply to teams with shift schedules or for folks whose roles require them to be in-office (think: Workplaces team or IT).

Apply Now:

Quantitative Software Engineer

Who We Are

We are building a cutting-edge delta-neutral trading protocol that captures volatility and yield across BTC, ETH, and liquid altcoins through advanced basis trading, OTC liquidity strategies, and perpetual derivatives.

By combining market-neutral strategies and innovative hedging solutions, we provide unparalleled capital efficiency for institutional and advanced traders. Our team has deep experience from leading crypto protocols, traditional finance firms, and exchanges, backed by top-tier investors and partners. We are creating the next generation of yield-optimised trading infrastructure for the digital asset markets.

What We Are Building

We are pioneering a delta-neutral, volatility-driven trading infrastructure designed to enable scalable exposure to major digital assets while managing directional risk. Our protocol integrates:

• Delta-Neutral Strategies: Leveraging basis trades, funding rate arbitrage, and hedging for consistent, market-neutral yield.
• OTC Integration: Discounted asset acquisition for cost optimisation and arbitrage opportunities.
• Automated Hedging: Combining perpetual futures, options, and liquidity strategies to minimise risk.

This platform is tailored to institutions, treasuries, and sophisticated market participants looking for capital-efficient yield in the crypto space.

Who We Are Looking For

We are seeking a Quantitative Software Engineer who is excited to work at the intersection of financial innovation and frontier technology. You are a problem-solver who thrives in a fast-paced, zero-to-one environment and have a passion for designing sophisticated trading systems.

You will play a pivotal role in building and optimising the internal trading and arbitrage platform, enabling automated delta-neutral strategies that scale across both centralised exchanges and DeFi markets.

Role Summary

The Quantitative Software Engineer will develop and maintain a high-performance internal trading and arbitrage platform. You will design automated delta-neutral derivative strategies, integrate with smart contracts, and collaborate across teams to deliver robust trading solutions for real-world market conditions.

Key Responsibilities

• Develop and maintain an internal trading and arbitrage platform, focusing on real-time low-latency data capture, order execution, and risk monitoring. Design and implement automated delta-neutral derivative strategies across centralised venues and DeFi smart contracts. Establish secure and efficient connectivity with
• custody providers, centralised exchanges, and OTC desks for seamless trading operations. Optimise systems for
• latency, scalability, and high-performance execution.
• Collaborate with smart contract engineers to integrate delta-neutral strategies within DeFi ecosystems.
• Build internal monitoring tools to track risk, funding rates, and arbitrage opportunities
• in real-time. Work cross-functionally with other engineers and quantitative analysts to drive product innovation.

Qualifications

• Minimum 2 years’ professional experience at a reputable crypto trading firm, hedge fund, DeFi protocol, or digital asset exchange, with a proven track record of delivering high-quality trading systems in production environments.
• Expert-level proficiency in Python programming, with demonstrable experience in architecting, developing, and maintaining robust, high-performance trading systems. Experience with advanced Python libraries (e.g., NumPy, pandas, asyncio, websockets) and hands-on exposure to asynchronous, event-driven programming is required.
• Proficiency in Rust/C++/Go is highly desirable, including experience in building performance-critical components, low-latency systems, or integrating low latency modules with Python applications.
• Hands-on experience with market-making engines or quantitative trading platforms, including system design, order management, strategy implementation, and real-time risk management. Familiarity with order book dynamics, liquidity provisioning, and exchange connectivity (REST/WebSocket APIs, FIX protocol, etc.) is essential.
• Deep understanding of networking, CPU and memory models, and low-level programming concepts, including multi-threading, concurrency, and performance profiling. Experience with optimizing system resource usage and troubleshooting latency or throughput bottlenecks is required.
• Familiarity with Solidity and blockchain fundamentals, including smart contract development, security best practices, wallet integration, and decentralised infrastructure (e.g., EVM-compatible chains, Layer 2 scaling solutions, bridges).
• Demonstrated quantitative and analytical skills, including experience designing, backtesting, and optimizing quantitative trading strategies. Strong grasp of statistics, probability, and time-series analysis; proficiency in using simulation frameworks and data analysis tools.
• Strong understanding of financial markets and market microstructure, especially in the context of crypto assets, derivatives, and DeFi protocols.
• Experience working with large-scale data pipelines and real-time data processing, including ETL design, data validation, and integration with cloud-based or distributed systems (e.g., Kafka, Redis, TimescaleDB).
• Comfortable with DevOps practices, including containerization (Docker), CI/CD pipelines, infrastructure-as-code, and monitoring/alerting tools.
• Ability to work collaboratively in a remote-first, fast-paced environment, including excellent communication skills, self-motivation, and the capacity to manage multiple priorities and deliver under tight deadlines.
• Fluent in English, both written and spoken, with the ability to clearly explain complex technical concepts to both technical and non-technical stakeholders.
• Bachelor’s degree or higher in Computer Science, Mathematics, Engineering, Physics, or a related quantitative discipline is strongly preferred.

Our Engineering Stack

• Frontend: React, Next.js, Wagmi, Viem, TailwindCSS.
• Backend: Python, Solidity, SQL, GraphQL, Docker, AWS, Ethereum.

What We Offer

• Competitive Salary: Commensurate with experience.
• Globally remote working opportunities with flexible hours.
• An opportunity to build the next generation of yield-optimised trading infrastructure in crypto.
• Collaboration with a world-class team driving innovation in delta-neutral strategies and OTC trading.
• The chance to work on a protocol that bridges centralised and decentralised markets, delivering solutions for institutional-grade DeFi.

Why Join Us?

If you are passionate about building automated delta-neutral strategies, low-latency systems, and cutting-edge trading solutions, this is your opportunity to make a real impact. Join us as we transform how institutions capture volatility and yield in the crypto markets.

Apply now and help redefine the future of decentralised capital efficiency.

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About us

Ambush is an AI company developing AI research & products that accelerate onchain adoption. We’re building Web3’s first autonomous AI agents to simplify wealth creation & onchain safety.

We’re a lean & hyper performance-oriented team; we are competitive, we like moving fast, and we run head-first towards seemingly impossible ideas. Our entire team is crypto-native & we have a shared North Star of solving web3’s hardest challenges.

Our team is led by one of crypto’s prominent anons, Psycho.

About the role:

We’re hiring a Lead AI/ML Engineer with deep experience designing and deploying real-world AI systems, with a focus in NLP, GenAI, and evaluation systems.

You’ll work directly with our CTO to architect AI infrastructure that powers intelligent, responsive onchain products. Because we’re building crypto-native interfaces with AI at the core, the ideal candidate is fluent in the modern GenAI stack, has opinions on model evaluation, and isn’t afraid to go deep into both product UX and system performance.

No formal crypto work experience is required, although general interest in crypto is a must.

Requirements:

• 4+ years of production AI/ML experience, with a focus on Python, HF Transformers, other NLP tools, and proper evaluations.
• Strong understanding of modern GenAI ecosystems: frontier models, open models, vector databases, embeddings, RAG, prompt orchestration, etc.
• Hands-on experience building evaluation frameworks and benchmarks for AI systems.
• Track record of deploying and maintaining production systems — ideally including non-cloud (local or edge) inference.
• You’re product-minded and comfortable navigating ambiguity across the AI stack.

Responsibilities

• Architect and implement complex multi-model AI systems — including retrieval-augmented generation (RAG), local model inference, and hybrid pipelines.
• Manage evaluations for open-ended AI tasks (e.g. classification, summarization, question-answering) with clear metrics and iterative feedback loops.
• Contribute to product strategy and help define how AI fits into core user flows.
• Own the full lifecycle: prototyping, productization, monitoring, and iteration.
• Work closely with design and product teams to ship user-facing AI features.
• Stay ahead of the curve on LLM advances, OSS tools, and model performance trends.

Why join Ambush?

• Industry leading pay: strong base salary + uncapped profit share + equity
• Lean & high-impact team; we hate bureaucracy & will not grow past ~10 people
• One of the fastest growing AI companies in crypto
• Proven leadership team with several acquisitions under their belt

Internal full-time hires only, no contractors or agencies

As a Senior Rust Core Engineer at Raiku, you will spearhead our engineering efforts, driving the innovation and implementation of next-generation high-performance distributed systems. You will work with a highly proficient team of core engineers who have all contributed to foundational and novel network components.

We believe in hiring only exceptional individuals who are highly motivated to work on complex core infrastructure challenges and are motivated by a coherent system design philosophy that will drive our industry forward. Expect frequent group discussions on architecture, new design specs and code reviews. We are all deeply committed to frequently shipping quality code.

About Raiku

Raiku is reimagining Solana’s consensus ecosystem by developing software that directly connects validators with purpose-built execution environments. We’re building institutional-grade infrastructure that delivers unprecedented performance, guaranteed transaction inclusion, and deterministic settlement for the next generation of internet-native applications. We unlock radical bandwidth and latency improvements by shifting Solana’s focus to state verification.

About the Engineering Team

As a team, we are building an entire platform written in Rust, which connects the L1 and L2s and allows us to create deeply complex scenarios and interactions with the running network. While your primary focus for this role is Rust and complex interactions with different components, you will likely also be involved in infrastructure (e.g., k8s), script writing, and supporting projects in other languages (e.g., Go). Working at every level of the stack is necessary to understand the big picture and how everything is wired together.

Responsibilities

• Highly motivated to contribute to our mission and be part of something bigger. Excited to work on projects that are ground-breaking and complex
• Refactor, improve and lead software design implementation
• Communicate effectively with the team and document your code. It is also expected that founding engineers mentor less experienced engineers.
• Read and understand protocol specifications and be able to break them into issues and turn them into Rust code.
• Maintaining a large codebase with many components and keeping it well-designed, future-proofed, modular and highly performant
• Automate security testing processes and benchmarks, creating innovative tools and frameworks for continuously improving our systems.

What You’ll Bring:

• A bachelor’s or master’s degree in Computer Science, Engineering, or a related technical field, coupled with practical experience in blockchain systems.
• At least 3 years of experience in distributed systems, with a deep technical understanding of L1 and L2 architectures.
• Strong proficiency in Rust, with at least 2-3 years of Rust experience.
• Strongly emphasising writing performant and secure code.
• Demonstrated experience in designing, developing, and deploying scalable distributed systems.
• An analytical mindset with the ability to anticipate and mitigate emerging security threats, leveraging a comprehensive understanding of the blockchain landscape.

Preferred Qualifications

• Active open-source contributions in core protocol engineering (such as Firedancer, Reth, Lighthouse, Geth, …).
• Direct involvement in the Solana ecosystem, with contributions to Solana’s runtime, scheduler, or other core systems.
• Experience writing Solana Program Library (SPL) and Anchor or similar frameworks
• Active engagement with the blockchain security research community, evidenced by contributions to open-source projects, publications, or presentations at notable conferences.

Benefits

• Competitive remuneration packages based on iterative market research, including tokens
• Remote-first and self-initiating with flexible hours
• Work with team players who are genuinely excited about their impact and projects.
• A dynamic and collaborative work environment that fosters innovation and recognises individual contributions to collective success
• Opportunities for professional growth and advancement within a rapidly growing technological frontier

About APF Company Limited

APF Company Limited is a Hong Kong headquartered blockchain ecosystem fund focused on strategic investments and active trading strategies in liquid cryptocurrency markets.

Overview

We’re seeking a talented Founding Quantitative Developer to join our Hong Kong team, where you’ll play a pivotal role in building and refining tools for cryptocurrency trading and blockchain integration. You’ll develop algorithms, integrate with decentralized finance (DeFi) platforms, and optimize systems for performance. This is an exciting opportunity to apply your technical expertise in a high-impact role, with rewards tied to the team’s success in a dynamic market.

Key Responsibilities

• Build and deploy trading algorithms to seize opportunities in cryptocurrency markets, ensuring scalability and efficiency.
• Integrate trading systems with DeFi protocols, developing secure smart contracts to enable automated strategies.
• Optimize low-latency infrastructure to support high-frequency trading in volatile market conditions. Monitor and enhance existing tools, proactively identifying areas for improvement to maintain a competitive edge.
• Collaborate with team members to design robust solutions, sharing insights to drive innovation. Keep pace with blockchain advancements, ensuring our systems align with evolving DeFi standards and protocols.

Qualifications

Education:

• Bachelor’s, Master’s, or Ph.D. in a quantitative field such as Computer Science, Mathematics, Physics, Engineering, or Economics from a reputable institution.

Work Experience:

• 2-5 years in a related field.

Technical Skills:

• Strong programming skills in Python (required) and C++ or similar languages (preferred) in Linux-based environments.
• Experience with data structures, algorithms, and writing efficient, well-documented code. Knowledge of Solidity for smart contract development and familiarity with blockchain concepts (e.g., web3, decentralized networks).
• Comfort with APIs (e.g., REST, WebSocket) and cryptographic techniques for secure integrations. Blockchain & DeFi:
• Understanding of DeFi ecosystems, including protocols like Uniswap, Aave, or similar platforms. Ability to develop and audit smart contracts for reliability and security.

Mindset & Attributes:

• Curiosity and enthusiasm for cryptocurrencies, trading, and blockchain technology.
• Sharp analytical skills with a knack for solving complex technical challenges.
• Ability to thrive under pressure, adapting quickly to shifting priorities.
• Collaborative spirit, eager to contribute ideas and learn from others.
• Strong sense of ownership, delivering high-quality work with precision.

Nice-to-Haves

• Experience trading cryptocurrencies or working with financial markets.
• Familiarity with high-frequency trading systems or market data analysis.
• Exposure to tools like SQL, bash, or cloud-based DevOps workflows.
• Contributions to open-source blockchain projects or a portfolio of DeFi-related work.

Blockstream was founded in 2014 by Dr. Adam Back and a group of fellow cryptographers and engineers passionate about Bitcoin and its potential to change the future of finance. Focusing on building fundamental Bitcoin infrastructure, Blockstream quickly grew into one of the leading technology power houses of the industry. At Blockstream, we’re building solutions on Bitcoin that will disrupt the existing financial system. We imagine a world where individuals and businesses can easily access a global, permissionless system to secure their money, use it every day, and invest it or put it to work. In pursuit of our expansive vision, we’ve built a full stack of innovative products on top of the Bitcoin protocol, from layer-2 projects like Liquid and Core Lightning, to end-user software and hardware wallets like Green and Jade. Our brand stands for innovation in the Bitcoin community, and we’re growing our team to accelerate the future. Blockstream is looking for Software Engineers to work on our enterprise custody solution. You’ll design and maintain scalable end-to-end systems that serve APIs and SDKs, and work on everything from database architecture to cloud-based deployments.  What You’ll Be Doing (Responsibilities):

Design, develop, and maintain scalable end-to-end systems that serve APIs and SDKs. Full stack software development, from database architecture to cloud-based deployment. Optimize system performance and security to support high-availability applications. Collaborate with cross-functional teams, including front-end developers, product managers, and hardware engineers to deliver seamless solutions. Implement best practices in software development, including CI/CD, automated testing, and code reviews. Research and integrate emerging technologies to enhance security and system efficiency. Troubleshoot and resolve complex software issues in a fast-paced development environment. Mentor junior developers and contribute to team knowledge-sharing efforts.

What We Look For In You (Required Qualifications):

5+ years of experience in full-stack software development, with a focus on backend engineering. Proficiency in backend technologies such as C++, Python, Rust, Node.js or Java. Strong experience in designing and building RESTful APIs and SDKs. Hands-on experience with cloud platforms (AWS, Azure, GCP) and containerization (Docker, Kubernetes). Deep understanding of database technologies, including SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis). Familiarity with authentication and security best practices, including OAuth, JWT, encryption, and access control. Experience with CI/CD pipelines, automated testing, and DevOps tools. Strong problem-solving skills and ability to work independently or as part of a team. Excellent communication skills, with the ability to explain technical concepts to non-technical stakeholders.

Nice To Haves (Preferred Qualifications):

Experience with Bitcoin, blockchain technology, or cryptography. Open-source software development experience. Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field (or equivalent experience). Experience with system/software architecture.

Apply Now:

Who are we?

We believe Ethereum has the potential to solve some of humanity’s most crucial coordination issues. Since our initial inception as a research group, we have sought to scale both its technology and values.

At present, the most pressing bottleneck to the growth of Ethereum is its performance and scalability. We are building the most elegant solution to this problem. We do this in the open (under an MIT open source license) because we believe in open source innovation and its ability to accelerate growth.

OP Labs contributes to the Optimism protocol, an extension to Ethereum that scales both its technology and values. Optimism enables orders of magnitude of improved performance and scalability to Ethereum while doubling down on its commitment to public goods.

The Optimism Collective leads the blockchain protocol landscape, dedicated to fostering a scalable and sustainable ecosystem. Optimism’s ethos, in sync with Ethereum's vision, tackles pivotal coordination challenges of the digital age. Optimism’s goal is to harmonize private incentives with public good, shaping a resilient future for the Internet. Optimism’s scope spans diverse areas like Gaming, DeFi, NFTs, and Enterprise.

Position Overview:

The Proofs team is looking for an experienced software engineer. We’re developing the infrastructure that enables the secure and permissionless withdrawal of funds from OP Stack chains and the Superchain.

We’re developing the Optimism fault proof system, which is already in production, and evolving it to support “stage 2” decentralization with multiple proof systems, including ZK validity proofs.

What are the role responsibilities?

• Evolve our proof system to meet stage 2 requirements using dispute games and/or validity proofs.

• Contribute to important Go-based and possibly Rust-based Ethereum and OP Stack infrastructure, for example Cannon, the Fault Proof VM.

• Work with other teams and other disciplines within OP Labs, and with our ecosystem of external developers and partners.

What skills do you bring?

• Proven experience developing in Go, Rust, or another similar language.

• Blockchain development experience.

• Experience in systems programming, ideally in developing low-level software such as virtual machines, interpreters, or compilers.

• Excellent written and verbal communication skills, with the ability to document technical details clearly and collaborate effectively with team members.

• Strong understanding of cryptographic principles.

• Experience with Zero Knowledge Proofs or ZK VMs is a nice-to-have.

What will you like about us?

• We take care of our employees. Competitive compensation, fully paid medical, dental, and vision, and a 4% 401K match—learn more about our benefits, culture, and all recruiting FAQ here.

• We take pride in the accomplishments of our teammates and support each other in doing the best work of our careers.

• Our team is a diverse group of people from varied backgrounds. We cherish our eclecticism and consider it a great strength.

• We’re fully remote, deeply engaged, highly skilled, and like to have fun.

• We think long-term. Our founders have been scaling Ethereum since 2015.

Apply Now:

About us At Auros, we’re dedicated to advancing the cryptocurrency ecosystem through unparalleled liquidity and market-making services. We’re one of the largest participants in the market, trading across 10+ global locations, facilitating 3-4% of global daily volumes, and have connectivity to over 50 venues. What sets us apart, though, is our culture. We believe in hiring smart people and empowering them to do their best work. From day one you’ll have the autonomy and support to really excel. Our relentless focus on delivery drives us to continuously push boundaries and achieve exceptional results, all while offering abundant opportunities for personal and professional growth in the dynamic realm of digital assets. The Opportunity This is an opportunity to develop trading systems for crypto currencies in the rapidly evolving class of digital assets. You will work with our traders and other experienced developers on improving and adding to our core systems. These systems are predominantly written in python and C++. These systems have to process millions of transactions from dozens of different Cefi and Defi platforms around the world in dozens of currencies (fiat and crypto). The scale of this problem will present interesting technical challenges for you to work on, especially as we grow further as a company. Job Responsibilities

Develop trading system infrastructure in Python and C++ as directed Work with traders, middle office and other stakeholders to understand the core problems that each of the teams is facing, in both Cefi and Defi environments and design solutions Deploy trading system components into our production environment Be responsible for troubleshooting system issues as and when they occur Identify opportunities for system improvements Engage with the team during system design discussions, code reviews, trading idea brainstorms and daily office banter.

Who you are

A software engineer with 5+ years experience in developing clean, maintainable and performant code.  You have 3+ years experience developing in both python and C++ Good programming skills, with a strong understanding of data structures and algorithms You can find the balance between delivering clean, testable, reliable code and rapidly deploying new system features to take advantage of market opportunities You are reliable, take pride in delivering robust software and are willing to be on call to support the systems you develop You’re able to precisely articulate software concepts and designs You have a Bachelor's degree (or above) in Computer Science, Software Engineering or similar, with excellent results. A strong interest in finance and cryptocurrencies, and solving complicated puzzles that can arise in this line of business (Desirable skill)

What We Offer in Return

Opportunity to work at the forefront of the digital asset industry Remote and flexible work Autonomy and a flat structure means you can contribute your ideas from day one and help shape the foundation that will power our future business.

At Auros, we value nimbleness, drive for success, owner mentality, and collaboration. Join us in shaping the future of financial services across Asia and beyond!

Apply Now:

BitGo is the leading infrastructure provider of digital asset solutions, delivering custody, wallets, staking, trading, financing, and settlement services from regulated cold storage. Since our founding in 2013, we have focused on enabling our clients to securely navigate the digital asset space. With a global presence and multiple Trust companies, BitGo serves thousands of institutions, including many of the industry's top brands, exchanges, and platforms, and millions of retail investors worldwide. As the operational backbone of the digital economy, BitGo handles a significant portion of Bitcoin network transactions and is the largest independent digital asset custodian, and staking provider, in the world. For more information, visit www.bitgo.com.Responsibilities:

Deeply understand how developers use Node.js and TypeScript at BitGo to create optimal solutions and abstractions for their use cases, driving and evolving recommended practices. Design, build, and optimize scalable platform services and Node.js-based tooling to support BitGo’s high-performance custody, wallet, and financial services platforms. Provide and integrate the libraries, frameworks, and workflows that enable developers to build software efficiently within the BitGo ecosystem. Develop tools and workflows to improve engineering velocity, including deployment pipelines, testing frameworks, and service abstractions. Continuously improve operational excellence through a culture of learning and proactive investments in reliability and resiliency. Collaborate with cross-functional teams to establish and maintain standards for API design, platform performance, and overall system architecture.

Required:

Deep expertise in Node.js, npm, and TypeScript, with a focus on developing reliable backend systems. Strong experience designing and implementing RESTful APIs and familiarity with API lifecycle management. Strong testing and debugging skills. Proficient with Git, CI/CD tools, and agile development practices. Excellent problem-solving skills, algorithm design, and complexity analysis. Bachelor’s degree in computer science, mathematics, or a related technical field.

Preferred:

Experience with microservices and service-oriented architectures. Knowledge of containers and orchestration platforms (Docker, Kubernetes). Experience improving developer productivity through internal tooling or frameworks. Familiarity with event-driven architecture and experience with event streaming platforms like Kafka. Ability to create clarity and drive alignment across stakeholder groups. A curious and proactive learner.

Why Join BitGo? Disrupting an industry takes vision, innovation, passion, technical chops, drive to deliver, collaboration, and execution. Join a team of great people who strive for excellence and personify our corporate values of ownership, craftsmanship, and open communication. We are looking for new colleagues who bring innovative ways of thinking and problem solving, and who want risks to be part of the team that changes the world's financial markets. Here are some of the benefits* of working at BitGo:

Competitive base salary, bonus and stock options 100% company paid health insurance for employee, partner and dependents Paid parental leave, Paid vacation Computer equipment and workplace furniture to suit your needs Great colleagues and inspiring startup environment *Benefits may vary based on location 

Cryptocurrencies are the most disruptive change the financial services industry has seen in years. Join us and you'll be able to look back and say you were part of the team that transformed investing. This role will require being full-time onsite at our Toronto office to support collaborative team dynamics and innovative problem-solving.

Apply Now:

Are you looking to be part of an early-stage venture and have proven experience in web3 content creation?

Location: Remote. Your team is based in Europe, India, and Canada.

Working Language: English

About the project

The #1 Crypto rewards platform where daily rewards meet smart investing.

Klink is a leading crypto wealth creation platform that innovatively combines quest-based task rewards with strategic investing opportunities on its multi-service platform. Klink provides a unique opportunity for its users to earn cryptocurrencies starting from $0 of personal investment and has already partnered with some of the leading companies in web3.

The company is backed by top-tier VCs in the US & Asia.

Tasks

We are now looking for an ambitious Fullstack Engineer to join the team. You will be joining a team of 20 (12 with technical background) with a live product with over 400,000 users already. As you work on building an innovative solution competing with products on a global scale, you will always be up to date on all the latest technologies and best practices, especially regarding the web3 space.

You will:

• Collaborate on the development of highly scalable Node.js products hosted on cloud-based infrastructure, facilitating access to DeFi opportunities for CeFi users.
• Construct and maintain internal and external RESTful APIs, ensuring swift and seamless updates to our products.
• Develop diverse platforms, optimizing for high throughput and faultlessness in execution.
• Integrate external providers from the FinTech and Blockchain industry to enhance our product offerings.
• Engage in regular communication with the technical lead and the entire team to discuss solutions and innovations.
• Actively participate in code reviews to uphold code quality, maintainability, and adherence to best practices.

Requirements

We do not focus on the time you have spent sitting in the lecture halls of this world but we want to understand what makes you feel comfortable, extraordinarily motivated and suitable to take over this position. We are looking for a team member who feels comfortable working remotely and in English in an international environment with a self-driven “Get stuff done” mindset.

• Experience in serverless architecture and microservices.
• Proven understanding of Blockchain and Web3 solutions.
• Proficiency in Javascript frameworks, with a focus on Typescript (Nest.js, Next.js, Node.js).
• Strong MVP-focused coding skills in any modern programming language.
• Solid understanding of cloud solutions, specifically Amazon Web Services (AWS).
• Good knowledge of data structures, algorithms, and relational databases.
• Familiarity with security best practices in cloud environments.
• Full-stack development experience with a strong proficiency in React.js, Next.js, and NestJS. Expertise in building dynamic, scalable, and high-performance web applications, ensuring seamless integration between front-end and back-end technologies for optimized user experiences and efficient server-side rendering.

Benefits

• Join at an early stage and be involved in decisions that shape the company’s future and the opportunity to build your own success story
• You will have a lot of autonomy and freedom in your role to innovate, test and fail
• Take a trip with an international team of highly skilled individuals who will always support you on this journey

If you want to know more about this opportunity please complete this application with your most recent work profile and we will get back to you ASAP.

We are excited to meet you!

Apply Now:

BitGo is the leading infrastructure provider of digital asset solutions, delivering custody, wallets, staking, trading, financing, and settlement services from regulated cold storage. Since our founding in 2013, we have focused on enabling our clients to securely navigate the digital asset space. With a global presence and multiple Trust companies, BitGo serves thousands of institutions, including many of the industry's top brands, exchanges, and platforms, and millions of retail investors worldwide. As the operational backbone of the digital economy, BitGo handles a significant portion of Bitcoin network transactions and is the largest independent digital asset custodian, and staking provider, in the world. For more information, visit www.bitgo.com.This role will require being full-time onsite at our San Francisco office to support collaborative team dynamics and innovative problem-solving. BitGo is looking for a Senior Software Engineer to join our Retail team and help us build an API-first platform for businesses and developers to launch crypto products. Responsibilities:

Design and build scalable, well abstracted, and robust APIs, libraries, and services to empower our API-first platform Own functionality and scalability features by taking responsibility from inception to deployment and customer integration Expose and document functionality to the UI, third-party developers, and our internal and external tooling Collaborate with cross-functional teams to define, design, and ship new features Write clean, maintainable, and efficient code Ensure the performance, quality, and responsiveness of applications Identify and correct bottlenecks and fix bugs Continuously discover, evaluate, and implement new technologies to maximize development efficiency Participate in code reviews and contribute to a culture of continuous improvement Work closely with product managers, designers, and other engineers to understand and refine product requirements Provide mentorship to your peers in the broader engineering team through code reviews and education on best practices

Skills & Experience:  We are looking for teammates who share and practice our values: open communication, transparency, taking ownership, and a high level of craftsmanship. We are looking for coworkers who share our vision and mission: deliver trust in digital assets.  Required

At least 6 years of proven experience of back-end and server-side development Great at algorithm design, problem solving, and complexity analysis Strong experience with of TypeScript, Node.js and Express Strong experience with Node.js, TypeScript, PostgreSQL and MongoDB Strong experience with RESTful API design Experience with microservices and service-oriented architectures Experience with unit and functional testing and debugging Experience in Git/GitHub and branching methodologies, code review tools, CI tools, etc. Ability to move quickly and adjust course as needed in a fast-paced environment Bachelor’s degree in computer science, applied mathematics, or another technical discipline from a top university Understanding of and strong interest in cryptocurrencies and blockchain

Preferred

Experience developing consumer-facing crypto products Proven experience building public-facing APIs in a production environment Ability to work full-stack and familiarity with React  Experience working with clients and/or business partners Familiarity with any of the following: digital wallets, clearing and settlement, lending, trading, accounting systems, etc

Why Join BitGo? Disrupting an industry takes vision, innovation, passion, technical chops, drive to deliver, collaboration, and execution. Join a team of great people who strive for excellence and personify our corporate values of ownership, craftsmanship, and open communication. We are looking for new colleagues who bring innovative ways of thinking and problem solving, and who want risks to be part of the team that changes the world’s financial markets. Pay Transparency Notice: Depending upon your leveling and location, the compensation for this role averages between $165,000 - $210,000 USD base salary. Equity, an annual performance bonus and the benefits outlined below are also a part of this role's package.  Here are some of the benefits* of working at BitGo:

Competitive base salary, bonus and stock options 100% company paid health insurance for employee, partner and dependents Up to 4% 401k company match Paid parental leave, Paid vacation Free commuter/parking pass; 5 min from Caltrain Free custom lunches, dinners and snacks  Computer equipment and workplace furniture to suit your needs Great colleagues and inspiring startup environment

*Benefits may vary based on location  Cryptocurrencies are the most disruptive change the financial services industry has seen in years. Join us and you’ll be able to look back and say you were part of the team that transformed investing.

Apply Now:

Who are we? FalconX is a pioneering team of operators, investors, and builders committed to revolutionizing institutional access to the crypto markets. Operating at the intersection of traditional finance and 
cutting-edge technology, FalconX addresses the industry's foremost challenges: Navigating the digital asset market can be complex and fragmented, with limited products and services that support trading strategies, structures, and liquidity found in conventional financial markets. As a comprehensive solution for all digital asset strategies from start to scale, FalconX operates as the connective tissue empowering clients with seamless navigation through the ever-
evolving cryptocurrency landscape.Responsibilities

Be part of a devops team, dedicated to building internal platforms. Work closely with internal teams to improve the system reliability, scalability and  developer productivity Engage in and improve the infrastructure quality supporting the platform. Build and manage systems, infrastructure and applications through automation. Provide operational support to internal teams working on the platform. Work on improvements to bring in high efficiency, reduce latency, deploy systems faster. Practice sustainable incident response and blameless postmortems. Together with your engineering team, you will share an on-call rotation and be an escalation contact for service incidents.

 Minimum Qualification

Bachelors with 5+ years of working experience as Site Reliability Engineering (SRE) / Devops Engineer Experience with programming. Preferably Python, or Go. Knowledge of Linux internals and bash scripting. Strong skills around observability, debugging and performance tuning, willing to dive into understanding, debugging, and improving any layer of the stack. Strong experience in managing infrastructure with cloud providers like AWS. Experience in container orchestration systems like kubernetes.  Strong experience in Observability platforms like Prometheus, Grafana etc Experience in standards devops tools for infrastructure management (terraform/opentofu etc), CI/CD (ArgoCD, Jenkins etc)

Preferred Qualification

Expertise in automation tools like Ansible, Terraform. Expertise in devops tooling like Jenkins, ArgoCD, github actions Expertise in advanced observability (USE-RED signals, Tracing, front end observability etc) and monitoring stacks, preferably Grafana stack.  Expertise in designing, analyzing, and troubleshooting large-scale distributed systems. Systematic problem-solving approach, coupled with effective communication skills and a sense of drive. Extensive experience in supporting production systems as SRE. Experience in setting up monitoring stack for process and docker based environments. Notice at Collection and Privacy Policy Applicants located in California and/or applying to a role based in California, please refer to our Notice at Collection and Privacy Policy here.   Inclusivity Statement FalconX is committed to building a diverse, inclusive, equitable, and safe workspace for all people. Our roles are intended for people from all walks of life. We encourage all those interested in applying to our organization to submit an application regardless if you are missing some of the listed background requirements, skills, or experiences! As part of our commitment to inclusivity, FalconX would like to acknowledge that the EEOC survey has limited potential responses that you can select. For legal reasons, FalconX must use this language to align with federal requirements, however, we want to ensure that you are able to provide a response to our own voluntary survey questions about your identity that best aligns with your most true self. FalconX is an equal opportunity employer and will not discriminate against an applicant or employee based on race, color, religion, national origin, ancestry, ethnicity, sex (including gender, pregnancy, sexual orientation, and gender identity), age, physical or mental disability, veteran or military status, genetic information, citizenship, or any other legally-recognized protected basis under federal, state, or local law. Applicants with disabilities may be entitled to reasonable accommodation under the Americans with Disabilities Act and other applicable state or local laws. A reasonable accommodation is a change in the way things are normally done which will ensure an equal employment opportunity without imposing undue hardship on FalconX. Please inform FalconX’s People team at email, if you need assistance with participating in the application process.

Apply Now:

👋 GM

We are OpenCover — our mission is to keep the world safe onchain.

OpenCover operates at the intersection of blockchain security and insurance. Working in tandem with leading underwriters and industry players, we protect individuals, businesses and institutions against onchain risks such as malicious transactions, smart contract exploits and depegs.

Founded by Y Combinator alums, our team is backed by Tier 1 investors including Alliance, Coinbase Ventures (Base Ecosystem Fund), NFX, Village Global and Orange DAO, with support from the Lloyd’s of London Lab.

Want to join a high-performance, high-integrity team taking onchain safety to the next level? Read on.

🚀 Your role

You would join the founding team to develop core backend infrastructure working closely with our CTO. Your role would focus on expanding the first transaction security layer to insure billions in value. The work involves collaborating with top protocols and industry players to prevent incidents like the ByBit hack from ever happening again.

Areas you’ll work on

• Soft auditing and semantic modelling of leading protocol designs and functions.
• Designing, implementing and backtesting transaction validation checks.
• Developing asset pricing and transaction risk models.
• Tracking exposure and other insurance metrics in real-time.
• Iterating and expanding our API based on customer feedback.
• Staying up to date with industry trends including EIPs and security incidents.

You’d be a great fit if

• You’re a generalist who quickly embraces new technologies and challenges with a passion for building products from the ground up in a collaborative, tight-knit team.
• You go all out to use your knowledge and work well autonomously but know when to reach out for support.
• You have 5+ years of full-time experience developing and shipping backend services with Node.js and TypeScript.
• You’ve designed, implemented and/or audited smart contracts on EVM-compatible chains and have hands-on experience using DeFi.
• You’re familiar with PostgreSQL, messaging brokers, AWS/GCP, Docker, Bash and Linux.
• You are constantly improving your tech stack and use AI tools to accelerate development.

🙌 Our offer

• Put your dent in the universe: build products for and with some of the largest players across Web3 and TradFi.
• Directly impact company trajectory and play a key role in driving onchain adoption.
• Work IRL with the team at Lloyd’s of London 1–5 days a week— your choice!
• Flexible hours with 28 days of paid holiday plus company closure days.
• Competitive compensation based on experience + 0.1–0.5% equity.
• The equipment you need to do your best work + $1,000 for well-being and personal development each year.
• Company-paid travel to events and conferences, if that’s your thing!

Ready to apply?

Head to opencover.com/apply/bbe and get shortlisted in 10 minutes or less.

Clearpool is the leading decentralized finance credit marketplace, preparing to launch Ozean — the blockchain for RWA yield. Clearpool’s permissionless protocol enables institutions to raise unsecured liquidity directly from DeFi markets, while a separate fully permissioned platform, Clearpool Prime, further meets the compliance needs for wholesale borrowing and lending of digital assets by institutional market participants.

Launched in March 2022, Clearpool has originated over US$620 million in loans with a growing user base spanning both crypto and TradFi institutions such as Wintermute, Jane Street, Fasanara Digital, CoinShares, and others. The protocol launched on the Ethereum mainnet in March 2022, followed by the expansions to Polygon PoS, Polygon zkEVM, Optimism, Mantle Network, Flare Network, Base and Arbitrum. Clearpool is currently building Ozean, the first blockchain for RWA yield built on and supported by Optimism.

More info

Job Overview:

We are seeking a highly skilled and experienced Senior Smart contract / Rollup Engineering Lead to join our dynamic team. The ideal candidate will have a strong background in Solidity/EVM Smart contracts with a keen interest in the evolving Web3 and RWA landscape for DeFi. This role primarily involves creating, designing, and implementing smart contracts, leading and managing the rollup infrastructure (Layerzero OFT, Hyperlane, Optimism L2 stack).

Key Responsibilities:

• Must be open to working
• Has contracts on the Ethereum/EVM that have handled non-trivial amounts of funds
• Develop libraries and code to interact with smart contracts and Node backends via NodeJS
• Writing, testing, and enhancing Solidity/EVM smart contracts
• Experience with foundry and testing with Tenderly
• Proven experience with Solidity security audits & working with auditors

Qualifications:

• Fluent in English communication
• Crypto Native
• Comfortable working in the fast pace and volatility of early-stage startups
• Strong understanding of the L2 Rollups and its ecosystem, upcoming technology, and application-specific blockchains
• Excellent problem-solving skills and attention to detail
• Strong communication and teamwork skills
• 4-5+ years of hands-on experience in backend and smart contract development
• Experience with building different DeFi products is ideal

Extras:

• Past experience in contributing to or maintaining open-source projects

Pay/Tokens:

• Salary Range $100,000-$120,000 USD annually
• Competitive token incentives plan
• Paid in USD stables. Payment and tokens are to be discussed based on qualifications, experience.

Role

• Setup, maintain and monitor fleets of blockchain nodes for Nirvana’s global customer base.
• Build and maintain scaleable and flexible automations for running blockchain nodes and internal monitoring services.
• Set and maintain the best-in-class infrastructure practices.
• Collaborate with cross-functional teams to align technical solutions with business goals and client needs.

Requirements

• Fluent in English
• In a time zone between PT to ET (UTC-8 to UTC-5)
• Proficient in scripting (i.e. Bash) and automation frameworks (e.g. Ansible, Terraform, Puppet, Chef)
• 4+ years of proven experience in DevOps or Site Reliability Engineering roles.
• Experience managing and optimizing bare-metal servers.
• At least 1 year of professional experience in creating and maintaining blockchain RPC nodes (e.g. Ethereum, Arbitrum, Solana etc.)
• Knowledgeable in deploying services reliably using tools like GitHub Actions, CircleCI, TravisCI, or Jenkins.
• Proficient with monitoring and logging tools (e.g, Prometheus, Grafana etc).
• Experience with Git-based systems for code and configuration management.
• Knowledge of various blockchain protocols and standards.
• Awareness of cybersecurity practices relevant to blockchain and distributed systems.

Nice to have

• Experience in creating automation tasks and internal tooling using Golang.
• Active contributions to relevant open source blockchain projects.
• Certifications for cloud providers, Kubernetes, or security certifications.
• Familiarity with a variety of blockchain environments.
• 1 year of experience in a technical leadership role.

At Edge & Node, we’re focused on building The Graph, a decentralized protocol for accessing and organizing the world’s knowledge and information. Subgraphs, a core technology developed by Edge & Node to access blockchain data, are widely used across web3 to power decentralized applications.

We’re a tight-knit, efficient team with a bias for action and a strong sense of ownership. Our teams have autonomy, low ego, and are trusted to drive projects end to end. We care deeply about building infrastructure for web3 use cases and collaborate across disciplines to make that happen. If you’re passionate about infrastructure that has a real impact on our users, enjoy solving hard problems, and thrive in a fast-paced environment, you’ll feel right at home.

The Engineering Operations team, including Site Reliability, works closely with engineering teams across Edge & Node to ensure the services we operate are reliable, performant, predictable, and secure. We are on a mission to take our service delivery to the next level.

About the Role

We’re looking for a Tech Lead, Site Reliability Engineering (SRE) to help guide the future of infrastructure and reliability at Edge & Node within The Graph ecosystem. In this role, you’ll be both a technical leader and hands-on contributor, driving industry best practices in reliability, infrastructure, observability, and operational excellence while collaborating cross-functionally to optimize and secure our systems.

You’ll play a critical role in setting the technical direction for the team—shaping how we build, scale, and support our services—while also staying actively involved in the day-to-day work. This is a role for someone who’s passionate about infrastructure and security, has stellar interpersonal skills, and is excited to lead us toward a more scalable, observable, and resilient future. You will partner closely with the team’s manager as well as stakeholders across the engineering organization.

What You’ll Do

• Lead by example as a hands-on technical contributor, participating in on-call rotations, incident response, and the day-to-day work of the SRE team
• Partner with engineering and product leadership to shape roadmaps, define team priorities, and plan work that improves reliability, performance, and scalability across the stack
• Team with and support other SREs, leveraging your leadership and soft skills to foster a culture of continuous learning, blameless retrospectives, and technical excellence
• Own the incident lifecycle, including root cause analysis and follow-up remediation, and work to make our systems increasingly self-healing
• Drive SRE team strategy, advocating for industry best practices, standardization, and secure and optimized infrastructure
• Architect and improve core infrastructure services, with an eye toward high availability, fault tolerance, performance, and end-to-end observability
• Work across teams to challenge assumptions, fundamentally overhaul our systems, and improve documentation
• Collaborate with external partners and vendors as needed to ensure the health of critical services

What We’re Looking For

• Proven experience as a senior or lead SRE or devops engineer, ideally having led large-scale reliability initiatives or infrastructure transformation projects
• Strong project or technical leadership skills, with a track record of guiding teammates and setting technical direction while still remaining hands-on
• Deep knowledge of the SRE/devops domain, including incident response, security awareness, maintaining SLAs and uptime guarantees, observability, supporting internal development teams, project and capacity planning, and/or system architecture
• Experience with both cloud and on-prem core infrastructure, ideally with Google Cloud Platform (GCP), bare metal infra, and kubernetes (or similar orchestration tools)
• Fluency in infrastructure as code, Terraform, automation tooling, CI/CD pipelines, and system monitoring solutions such as Grafana
• Excellent interpersonal, leadership, and communication skills, with the ability to align stakeholders and motivate and unblock team members
• Experience in web3, crypto, or blockchain is a plus (but not required)

About The Graph

The Graph is the indexing and query layer of the decentralized internet. As the first open data marketplace to introduce and standardize subgraphs, The Graph is a flagship solution for accessing blockchain data across web3.

Since launching in 2018, tens of thousands of developers have built subgraphs to power dapps across 90+ blockchains. As demand for web3 data grows, The Graph is evolving to support a broader range of data services and query languages, expanding what’s possible with decentralized infrastructure—now and in the future.

Discover more about how The Graph is shaping the future of decentralized physical infrastructure networks (DePIN) by following The Graph on X, LinkedIn, Instagram, Facebook, Reddit, and Medium. Join the community on The Graph’s Telegram, and join technical discussions on The Graph’s Discord.

As a Protocol Research Specialist at Raiku, you will be at the forefront of protocol research and development, bridging the gap between technical innovation and market implementation. You’ll be crucial in monitoring and influencing protocol developments while translating complex technical capabilities into compelling use cases for our target markets. This position requires a unique blend of technical expertise, market understanding, and communication skills.

About Us

We believe Raiku is reimagining Solana’s consensus ecosystem by developing software that directly connects validators with purpose-built execution environments. We’re building institutional-grade infrastructure that delivers unprecedented performance, guaranteed transaction inclusion, and deterministic settlement for the next generation of internet-native applications. We unlock radical bandwidth and latency improvements by shifting Solana’s focus to state verification.

Core Responsibilities

Protocol Research & Development

• Monitor and analyse Solana protocol changes (SIMDs) and their impact on Raiku’s infrastructure
• Drive Raiku’s protocol development by drafting and advocating for strategic SIMDs
• Host technical workshops with the team on relevant SIMDs and architectural changes to the network.

Product & Commercial

• Create technical use cases and system diagrams showcasing Raiku’s infrastructure capabilities.
• Support commercial discussions with partners and clients
• Transform technical capabilities into clear value propositions for target sectors
• Bridge the gap between technical capabilities and commercial opportunities

Technical Communication & Writing

• Produce technically accurate content for marketing and educational purposes.
• Represent Raiku in technical discussions across public forums
• Collaborate with the team on technical documentation and presentations
• Contribute to the company’s thought leadership in the Solana ecosystem

What You’ll Bring

• Bachelor’s degree or higher in Computer Science, Engineering, or related technical field
• Proven track record of writing in-depth technical articles mainly focused on blockchain protocol architecture and improvement proposals
• Ability to effectively bridge business requirements with technical specifications
• Deep understanding of blockchain protocols, particularly Solana’s architecture and ecosystem
• Experience with protocol development and improvement proposals
• Outstanding technical writing and documentation skills
• Proven ability to translate complex technical concepts into clear, business-focused use cases
• Excellent communication skills for both technical and non-technical audiences
• Track record of working independently while collaborating effectively with cross-functional teams

Preferred Qualifications

• Strong stakeholder management skills with experience in client-facing roles
• Familiarity with Solana’s governance and improvement proposal process
• Experience in product development or technical sales
• Active participation in blockchain technical communities

Benefits

• Opportunity to shape the future of Solana’s infrastructure
• Competitive compensation package, including token allocation
• Remote-first work environment
• A one-off allowance upon joining to set up a home office
• Professional development opportunities
• Chance to work with cutting-edge technology and world-class engineers

Nimbus is a research team that focuses on developing an Ethereum client and library. We believe that the largest deployment of Ethereum will potentially be on embedded systems and Nimbus is designed to perform well on embedded, mobile and generally resource-restricted devices.

Building the stack from the ground up, we’re translating the latest Ethereum research into practical, performant and reusable libraries to provide a fertile exploration ground for further R&D.

Check out our latest update!

The role:

We’re looking for an experienced Ethereum Validator Operations Lead to help us run our staking operations smoothly and efficiently. This role involves working with Ethereum node operations, staking mechanisms, and DeFi analytics to drive growth and profitability.

Responsibilities:

Prepare for upcoming updates:

• Stay on top of important updates to the Ethereum network, such as the Pectra update.
• Assess how these updates will affect our operations and make any necessary changes.

Node operations and DeFi:

• Oversee the technical aspects of our Ethereum node operations to ensure they’re running smoothly and efficiently.
• Use your knowledge of DeFi protocols, particularly Lido, to optimise our staking strategies.

Expand and grow staking operations:

• Explore opportunities to expand our staking operations beyond Lido, including working with other protocols and institutional partners.
• Balance growth with the continued support and improvement of our existing Lido operations.

Asset and portfolio management:

• Strategically manage the assets we’ve earned from staking operations, looking for ways to grow and diversify them.
• Analyze the market to inform our portfolio decisions.

Optimize operations and monitoring:

• Work with our Insights group to set up monitoring tools to track our staking operations’ performance and profitability.
• Continuously look for ways to improve our infrastructure and operations to reduce costs and increase profitability.

Maximize revenue:

• Find ways to capture private order flows and develop solutions to increase revenue.
• Identify and capitalise on other opportunities to enhance our revenue streams.

Reduce costs:

• Lead efforts to minimise operational costs, focusing on efficient resource allocation, hardware, and personnel.

Requirements:

• Required professional experience in a similar role within the Ethereum/DeFi ecosystem, with a focus on staking operations and growth strategies.
• Strong understanding of Ethereum, node operations, and staking mechanisms.
• Proven experience in DevOps practices, infrastructure optimisation, and monitoring solutions.
• Background in DeFi, particularly with Lido, and the ability to work with other staking protocols.

Hiring Process:

• Interview with our People Ops team;
• Two or three interviews with Nimbus team members & the venture studio, the Institute of Free Technology.

[The steps may change along the way if we see it makes sense to adapt the interview stages, so please consider the above as a guideline. We’re looking for you to join our team as soon as possible].

Bonus Points:

• Experience with MEV capture solutions.
• Familiarity with institutional staking operations and partnerships.
• Knowledge of portfolio management principles and asset diversification strategies in the crypto space.

Compensation:

We are happy to pay in any mix of fiat/crypto.

Join Tether and Shape the Future of Digital Finance

At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. By harnessing the power of blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally, all at a fraction of the cost. Transparency is the bedrock of everything we do, ensuring trust in every transaction.

About the job:

At Tether, we're committed to making advanced AI technologies more accessible. Thanks to its investment in AI infrastructure, starting from Northern Data, Tether is now in a prime position to tackle ambitious AI projects. Our goal is to build the next generation of AI models, leading innovation in AI, through an accessible, transparent and privacy preserving approach.

Responsibilities:

• Work on low level libraries and modules in various domains.

• Collaborate closely with researchers to assist in coding, training and transitioning models from research to production environments.

• Integrate AI features into existing products, enriching them with the latest advancements in machine learning.

• 5+ years of experience working with C and C++.

• Experience working in low level OS / Systems / Kernel development.

• Experience in low level networking.

• Knowledge of other languages such as Rust and Javascript is a nice to have.

• Demonstrated ability to rapidly assimilate new technologies and techniques.

• A degree in Computer Science complemented by a solid track record in development.

Apply Now:

Join Tether and Shape the Future of Digital Finance

Why Join Us?

As a Senior Backend Developer, you will be a part of the team that works on the development of Tether backend components

New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.

Scalability - all backend services that power Tether must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.

Security - Security is the most important feature. The Backend Development team is responsible for building all the services and core processes with the highest security principles and standard, in order to protect the safety of the entire user base.

• +6 years of experience working with Nodejs/JavaScript.

• Familiar with microservices architecture

• Have actively participated in the development of a complex platform

• Familiar with Peer-to-Peer technologies

• Good experience in interacting with databases (MySQL, MongoDB)

• Ability to quickly learn new technologies

• Good understanding of security practices

Nice to have

• Experience with blockchain integration

• Comfortable with high-availability concepts

• Ruby, Rust or C++ skills are a plus

• Other technologies of interest: Message queues (Redis), Caches and Job Queues

Apply Now:

Join Tether and Shape the Future of Digital Finance

At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. By harnessing the power of blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally, all at a fraction of the cost. Transparency is the bedrock of everything we do, ensuring trust in every transaction.

Innovate with Tether

Tether Finance: Our innovative product suite features the world’s most trusted stablecoin, USDT, relied upon by hundreds of millions worldwide, alongside pioneering digital asset tokenization services.

But that’s just the beginning:Tether Power: Driving sustainable growth, our energy solutions optimize excess power for Bitcoin mining using eco-friendly practices in state-of-the-art, geo-diverse facilities.

Tether Data: Fueling breakthroughs in AI and peer-to-peer technology, we reduce infrastructure costs and enhance global communications with cutting-edge solutions like KEET, our flagship app that redefines secure and private data sharing.

Tether Education: Democratizing access to top-tier digital learning, we empower individuals to thrive in the digital and gig economies, driving global growth and opportunity.

Tether Evolution: At the intersection of technology and human potential, we are pushing the boundaries of what is possible, crafting a future where innovation and human capabilities merge in powerful, unprecedented ways.

Why Join Us?

Our team is a global talent powerhouse, working remotely from every corner of the world. If you’re passionate about making a mark in the fintech space, this is your opportunity to collaborate with some of the brightest minds, pushing boundaries and setting new standards. We’ve grown fast, stayed lean, and secured our place as a leader in the industry.

Are you ready to be part of the future?

About the job

As a Senior Backend Developer, you will be a part of the team that works on the development of Tether backend components

New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.

Scalability - all backend services that power Tether must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.

Security - Security is the most important feature. The Backend Development team is responsible for building all the services and core processes with the highest security principles and standard, in order to protect the safety of the entire user base.

Job requirements

• 6 years of experience working with Nodejs/JavaScript.
• Familiar with microservices architecture
• Have actively participated in the development of a complex platform
• Familiar with Peer-to-Peer technologies
• Good experience in interacting with databases (MySQL, MongoDB)
• Ability to quickly learn new technologies
• Good understanding of security practices

Nice to have

• Experience with blockchain integration
• Comfortable with high-availability concepts
• Ruby, Rust or C++ skills are a plus
• Other technologies of interest: Message queues (Redis), Caches and Job Queues

At Coinme, we’re redefining access to financial services in a digital world. By combining the cutting-edge power of blockchain technology with everyday simplicity, we make digital currencies accessible and usable for all. As the world's largest network of cryptocurrency kiosks, we’re breaking down barriers to crypto adoption, enabling cash-to-crypto transactions at over 40,000 locations nationwide. Whether it's through our seamless mobile app, secure digital wallet, or integrations with Decentralized Finance (DeFi) services, Coinme is empowering individuals to store, trade, and pay with their money—on their terms. We’re big enough to lead the charge in decentralized finance but small enough that your ideas will make waves. Every role at Coinme contributes to building a financial future where everyone has the tools to thrive. At Coinme, your growth fuels our mission. Together, we RISE.Senior Software Engineer As a Senior Software Engineer at Coinme, you’ll play a crucial role in shaping the financial infrastructure that powers our fiat-to-crypto ecosystem. You will design and develop scalable, high-performance backend systems that manage the flow of funds—from processing transactions to seamless partner integrations. You’ll work with modern technologies in a collaborative, fast-paced environment. If you thrive on solving complex problems and want to impact billions of people worldwide, this is your opportunity to join a high-growth, mission-driven company. Responsibilities:

Design solutions for complex technical and business problems Develop software systems and components for our rapidly growing business Write performant, maintainable code while iterating and shipping rapidly Work within our backend architecture and technology stack based on:

Java 17 or higher with Project Reactor (Reactive Java) Spring Boot Command and Query Responsibility Separation (CQRS) architecture and Event Sourcing (ES) Full microservice environment RESTful APIs for synchronous flows Event-driven design (powered by CQRS and ES) for async flows Webhooks and Server-sent events Axon Framework for intra-domain event-driven design Kafka for inter-domain event-driven design Kubernetes, Helm charts, Argo platform MySQL DB Mongo DB AWS solutions (EC2, RDS, etc.)

Author and maintain unit and integration tests Work with your Scrum team to plan sprints and delivery of features Drive engineering excellence, operational stability and security into all layers of the  platform Participate in design and architecture discussions and planning Drive the execution and delivery of features by collaborating with cross functional stakeholders Work with Engineering Leadership to drive best practices in software development, testing, and production operations Mentor other engineers, helping them grow in their careers Contribute to recruiting efforts to continue to build your team

Qualifications:

Bachelor's degree in Computer Science, Software Engineering, or equivalent experience 5+ years of experience as a software developer Experience building scalable services and distributed systems in Java or similar object-oriented language Experience driving technical designs within a team Experience writing code that is readable, scalable, and instrumented Experience working in a fast-paced Agile development environment Experience in communicating with users, other technical teams, and product to understand requirements, describe software product features and technical designs Passion for cryptocurrency and blockchain technology Required technology skills

Java & Spring Boot expertise Experience with a microservice environment Kafka, RabbitMQ, ActiveMQ or similar tech RESTful APIs for synchronous flows MySQL DB Mongo DB or similar NoSql database Experience with Kubernetes or any cloud development platforms

Not Required, But Nice to Have:

Experience working in the financial services industry  Experience or working knowledge of CQRS architecture and Event Sourcing concepts Experience with Event-driven design Reactive Java, Project Reactor Webhooks, Server-sent events, Websocket or any async notification technology Axon Framework  Experience with AWS solutions 

Compensation and Benefits

Competitive Salary  100% Remote - work from the comfort of your home Comprehensive health benefits package  A diverse offering of supplemental insurance  Generous Time Off, Parental Leave, & Paid Volunteer Hours Paid Holidays Great people! 

Location This opportunity is for a full-time position for candidates residing in Latin America. Coinme is a fully remote organization. 

Apply Now:

Caiz

Revolutionizing Islamic Finance with Blockchain Technology

Are you ready to be part of a groundbreaking initiative that combines Islamic finance principles with cutting-edge blockchain technology?

Look no further than Caiz– THE FIRST ISLAMIC ECOSYSTEM BUILT ON BLOCKCHAIN.

At Caiz, our mission is clear: to create a Fiqh compliant financial ecosystem that provides our community with fair and easy access to ethical financial products and services. We believe in empowering individuals to build a strong financial future while engaging in long-term economically beneficial behavior.

Our native coin, Caizcoin, that fuels the Caizblockchain. With Caizcoin, you can make seamless payments, store value, and interact with a range of ethical financial products we are developing. The centerpiece of our ecosystem is the innovative Caizapp, giving users complete control over their digital assets.

We are a passionate team reshaping finance, and we are expanding our dynamic workforce. Join us in a collaborative work environment focused on creating a fast and compliant money transfer structure.

WHY TO JOIN Caiz?

• Innovative & Purpose-Driven: At Caiz, we combine advanced blockchain technology with the principles of Islamic finance to create an innovative and modern financial system. Join us to be part of a forward-thinking organization that is reshaping the future of finance.
• Ethical Impact: As part of Caiz, you'll be working in an Organization that prioritizes ethics and integrity in all its operations, ensuring that every solution we offer aligns with the core values of fairness, transparency, and respect.
• Growth & Learning Opportunities: At Caiz, we value personal and professional growth. You'll have the opportunity to learn, innovate, and grow within a dynamic, supportive environment, while contributing to the development of ethical financial solutions.
• Global Vision, Local Impact: Caiz is focused on creating an inclusive, sustainable financial system that empowers individuals globally. You’ll be contributing to a company that has a positive impact on local communities and the global financial landscape.
• Collaborative Culture: We believe in teamwork and collaboration. You'll work alongside passionate professionals who are committed to driving change in the crypto and blockchain space, working together to create an ethical financial future.
• Secure & Transparent Environment: We emphasize trust and security in all aspects of our operations. As part of Caiz, you’ll be part of a transparent organization that values customer trust and ensures the highest security standards in the crypto space

Tasks

AI/ML Backend Developer (Blockchain-Focused) Job Summary:

We are seeking a talented AI/ML Backend Developer to design and implement AI-driven features into our blockchain ecosystem. You will be responsible for building and deploying machine learning models, managing large-scale data pipelines, and working closely with our blockchain engineering team to deliver intelligent backend services.

Responsibilities:

• Design, develop, and deploy machine learning models for crypto data analysis, fraud detection, and smart automation.
• Build scalable backend systems and APIs that integrate AI capabilities.
• Handle large volumes of data from blockchain transactions and user interactions.
• Work with cross-functional teams including blockchain engineers, DevOps, and product managers.
• Monitor and optimize model performance in production environments.

Requirements

Experience:

• 3+ years of professional experience in specifically in AI/ML projects
• Proficiency in Python, with experience in TensorFlow, PyTorch, or similar ML frameworks.
• Strong backend development skills using FastAPI, Flask, or Django.
• Experience with REST APIs, databases (SQL/NoSQL), and cloud infrastructure (AWS, GCP, or Azure).
• Understanding of blockchain architecture and smart contract interaction.
• Version control using Git and containerization with Docker.

Nice to Have

• Familiarity with Solidity, Rust, or blockchain smart contract languages.
• Experience with MLOps, model serving, and CI/CD pipelines.
• Prior experience in a startup or high-growth tech environment.

Level of studies: Bachelor’s or Master’s degree in Computer Science, Artificial Intelligence, Data Science, or related field.

Language Requirements: Fluent in English

Benefits

BENEFITS AT Caiz :

• Competitive Financial Compensation: We offer financial benefits that reflect the value of your work and dedication.
• Work Flexibility: Enjoy the flexibility to work from home, the office, or even abroad.
• Annual Holidays: Generous paid time off to help you maintain a healthy work-life balance.
• Relocation Assistance: We provide relocation support for employees moving to new locations.
• Professional Development: Opportunities for training, certifications, and career growth.
• Employee Recognition: Programs to celebrate and reward your achievements and contributions.
• Inclusive & Collaborative Culture: A supportive and diverse work environment where your voice matters.
• Diversity, Equality, and Inclusion: We are committed to fostering a workplace that values diversity and promotes equality and inclusion for all employees.

Don't miss this opportunity – apply now and be part of the CAIZ revolution.

Apply Now:

About Us

Chorus One is one of the leading operators of infrastructure for Proof-of-Stake networks and decentralized protocols. Tens of thousands of retail customers and institutions are staking billions in assets through our infrastructure helping to secure protocols and earn rewards. Our mission is to increase freedom and speed of innovation through decentralized technologies.

We are a diverse team of 70+ people distributed all over the globe. We value radical transparency, striving for excellence and improvement while treating each other with kindness and generosity. If this sounds like you, we'd love to hear from you.

• Contribute to upstream software to improve observability, and build monitoring tools from scratch where none exist. The teams that build the node software are not the teams that operate this software at scale, and as such, observability is often not a first priority. We develop our own tools for on-chain and off-chain monitoring, both for short-term metrics (to alert on) and long-term metrics to measure our performance, and to support optimisation decisions.

• Build tools to track and manage our fleet of servers. We work mostly with bare-metal servers across multiple providers. This means that no vendor-specific portal is going to give us a complete overview of our infrastructure, instead we have an in-house tool that integrates with vendor APIs and gives us a central overview.

• Automate machine provisioning. Instead of working with 10+ cloud and bare metal providers’ flavor of installing Ubuntu, we build our own installer that is uniform across our infrastructure.

• Track and automate builds. Each of the 60+ networks we operate regularly releases updates. It would be tedious to manually git pull && make for every release, instead we have automation watching for new releases that automatically builds them and registers them in our package registry.

• Automate updates and failover. When we have a new package, we still need to roll it out to our fleet and restart any nodes, in a controlled manner and without downtime. For validating nodes, we also need to fail over before we restart them, and confirm the new node is healthy. To automate this, we need to have 100% confidence in our tooling, because a mistake here can lead to double-signing, which incurs a financial penalty.

• Automate snapshot creation and storage. Blockchains node software is stateful in nature: the chains are often terabytes in size. While it is possible for new nodes to sync from the p2p network, this can take days to weeks, which means it is not a suitable method when we move workloads between machines. We automate taking snapshots of this data, so we can be more flexible about what runs where, without compromising on security.

Our internal tooling:

Itis written in a mix of Rust, Python, Go, and a bit of TypeScript. We use Postgres as our database of choice. We deploy our code either directly onto Ubuntu hosts, running under systemd or in Docker containers, and we also have a Kubernetes cluster running various stateless applications. Due to the diverse nature of the software we run, we also have to occasionally dive into codebases written in C, C++, OCaml, or TypeScript.

Key Responsibilities

• Design and develop new features. Discuss with internal stakeholders to clarify how ournext feature should look, discuss with fellow engineers how it should be implemented,and then drive implementation to completion.

• Support and collaborate. Review and discuss engineering designs, review code, helpfellow engineers, and mentor them on a technical level.

• Innovation and continuous improvement. Seek to simplify, optimize, and secure ourstaking services and systems.

• Take part in on-call rotation approximately 2 days per month.You will be responsible for automation that manages our validators and infrastructure, including its uptime and incident response.

What we are looking for:

• 5+ years experience as a Software Engineer.

• Experience with operating and maintaining server-side software in production.

• Deep understanding of at least one compiled statically typed programming language such as Rust, Go, Kotlin, C++, or Haskell.

• Experience with at least one scripting language such as Python.

• Experience using SQL databases, preferably PostgreSQL.

• Strong communication skills and ownership to drive new features independently.

• Interest in blockchain technology, in particular distributed systems and consensus algorithms.

• Affinity with infrastructure and the lower levels of Linux userspace.

• You are able to work in the following time zone: Switzerland ± 6 hours.

What We Offer:

🌱 Growth & Learning

🤝 Collaborative Culture

✈️ Retreats in Iconic Destinations

🏡 Work From Anywhere

🗣️ Radical Transparency

💸 Compensation & Equity

💼 Employment

We offer flexibility to suit your individual needs. With the ability to provide local employment in over 150 countries, you’ll have access to local benefits tailored to your region. Prefer contractor status instead? That’s an option too. During the offer, we work with you to determine the best arrangement, ensuring your experience aligns with your personal and professional preferences.

✨ Curious to see what life at Chorus One is really like? Check out these videos for a behind-the-scenes look:

• Culture at Chorus One

Apply Now:

About Us

Chorus One is one of the leading operators of infrastructure for Proof-of-Stake networks and decentralized protocols. Tens of thousands of retail customers and institutions are staking billions in assets through our infrastructure helping to secure protocols and earn rewards. Our mission is to increase freedom and speed of innovation through decentralized technologies.

We are a diverse team of 75+ people distributed all over the globe. We value radical transparency, striving for excellence and improvement while treating each other with kindness and generosity. If this sounds like you, we'd love to hear from you.

Position Overview

As a senior software engineer, you will join our rewards data team to assist in building and maintaining user-facing and internal applications to support rewards reporting and financial performance monitoring. At Chorus One we take the upstream node software from projects like Ethereum, Solana, Cosmos, or Avalanche; compile it; run it on one of our servers; and then make sure it is reliable and secure, monitor it, and keep it up to date. The networks rewards us for that in their native token. Keeping track of those rewards over time is a hard problem, because ironically, blockchains typically don’t expose convenient APIs to extract this data in a useful format. This is why we build our own automation, and integrate with third-party data vendors. Your work will power internal reports and dashboards, as well as external customer reporting, and rewards data APIs.

Key Responsibilities

• Design and develop new features. Discuss with internal stakeholders to clarify how our next feature should look, discuss with fellow engineers how it should be implemented, and then drive implementation to completion.

• Support and collaborate. Review and discuss engineering designs, review code, help fellow engineers, and work with other teams such as platforms engineering, customer success, business development, and our networks team, to get them the insights they need.

• Innovation and continuous improvement. Seek to simplify, optimize, and secure our staking services and systems.

• Take part in on-call rotation approximately 2 days per month. You will be responsible for building APIs used by external parties, which come with an uptime requirement.

What we are looking for

• 4+ years experience as a Software Engineer.

• Experience with operating and maintaining server-side software in production.

• Experience with Python (most of our rewards data automation is written in Python)

• Other backend software at Chorus One is written in a mix of Rust and Go, experience with these is an advantage.

• Experience using SQL databases, preferably PostgreSQL.

• Experience with implementing REST APIs.

• Strong communication skills and ownership to drive new features independently.

• Interest in blockchain technology, in particular distributed systems and consensus algorithms.

• You are able to work in the following time zone: Switzerland ± 6 hours.

What We Offer

🌱 Growth & Learning

🤝 Collaborative Culture

✈️ Retreats in Iconic Destinations

🏡 Work From Anywhere

🗣️ Radical Transparency

💸 Compensation & Equity

💼 Employment

We offer flexibility to suit your individual needs. With the ability to provide local employment in over 150 countries, you’ll have access to local benefits tailored to your region. Prefer contractor status instead? That’s an option too. During the offer, we work with you to determine the best arrangement, ensuring your experience aligns with your personal and professional preferences.

✨ Curious to see what life at Chorus One is really like? Check out these videos for a behind-the-scenes look:

• Culture at Chorus One

Apply Now:

About CoW DAO

CoW DAO is on a mission to protect Ethereum users from the dangers of DeFi. It does this by supporting the development of CoW Protocol, CoW Swap, MEV Blocker, and CoW AMM, and by funding values-aligned projects through the CoW Grants Program.

CoW Protocol is the second-largest DEX aggregator by monthly volume and the first-largest intents-based exchange. MEV Blocker is currently involved in ~4% of all Ethereum transactions, making it the category leader. CoW AMM is the only live AMM that protects LPs from LVR (loss-versus rebalancing).

As a member of CoW DAO’s core team, you will have the opportunity to shape these essential products, and contribute to the Ethereum ecosystem more broadly.

About the role

Location: We are a fully remote team, and although we hire almost globally, there is a preference for this role to be based in Europe or remote +/- 4 hours CEST time_

Please note we’re not hiring from the US, Australia, or New Zealand

Position: Full-time contractor

We’re on the lookout for a Smart Contract Engineer to join our team. If you’re passionate about blockchain tech, love solving complex problems, and thrive on ownership, we’d love to hear from you. We’ve got a packed roadmap full of exciting projects, and we’re all about building innovative, solid, and high-performance solutions as we grow

What you will do

• Build new features: work on new CoW Protocol features by developing new smart contracts and laying out support for them in our off-chain infrastructure
• Review protocol integrations: advise third parties on how to work with CoW Protocol, write grant proposals and support grantees in their execution
• Foster decentralization: contribute to designing the next version of CoW Protocol, in the spirit of removing central authorities and building trust through verifiable execution
• Contribute to the upkeep of the protocol: investigate suspicious transactions, detect on-chain misbehavior, support CoW DAO governance by participating in the discussion through its formal proposal process (CIPs)
• Maintainable code: collaborative coding through code review, internal feature discussion, full testing coverage, CI, public development process on GitHub
• Collaborating with a remote team, sharing feedback, and debugging

Tech stack you’ll be in contact with

• Smart contracts: Solidity, Foundry, rarely Hardhat
• Back-end contract services: Rust, Kubernetes
• Debugging and alerting: Tenderly, Grafana, Elasticsearch
• Data analysis: Python, Dune Analytics
• Governance: Safe Multisig, Snapshot
• Communication: GitHub, Slack, Notion, Zoom, Google Docs
• Supported chains: Ethreum, Arbitrum, Gnosis Chain, Base

Who you are

• Has solid Solidity expertise – with experience working on EVM-compatible chains
• Is skilled in Rust or Python – Rust is preferred, but Python works too as long as you’re open to learning Rust
• Delivers results – you have a proven history of writing high-quality, functional, and reliable code
• Works well remotely – async communication, detailed code reviews, and team collaboration are second nature to you
• Excels at problem-solving – you can tackle challenges with creativity and efficiency
• Takes ownership – you’re proactive and see things through to the end

A bonus

• Familiarity with the DeFi ecosystem
• Experience contributing to or managing open-source project

What we can offer

• Flexible work environment: Join our hub in Lisbon or work remotely
• Token plan: Have a stake in our mission and shape the future of CoW DAO
• Periodic gatherings: Enjoy opportunities to connect with the rest of the team through regular trips
• Conference allocation: Stay up-to-date with ecosystem advancements using our conference budget
• Learning budget: Use our learning budget to support your higher ambitions
• Hardware budget: Take advantage of a hardware budget for acquiring necessary equipment
• Make an impact: You are joining a startup where you can make a huge difference. Your work matters!
• Flat hierarchies mean fewer processes and bureaucracy - see more of your ideas come to life!
• Flexible work and vacation times: Prioritize work-life balance through our robust flexible work policy and vacation allowance
• Growth: If you’re someone who loves taking the initiative and getting things done, CoW offers lots of opportunities for your individual growth

Referral Program

Earn 5.000 USDC or USD with the refer-to-earn program. More details here.

Culture

Life within the CoW Protocol is an incredible adventure! We take pride in our collaborative approach, embracing autonomy and fostering a culture of big thinking and continuous growth. We value impact, ownership, simplicity, and team spirit. Plus, we’re all about feedback, coming together, and enjoying the journey along the way!

At CoW Protocol, we strive to create a space where everyone feels included and empowered. We believe that our products and services benefit from our diverse backgrounds and experiences. All qualified applicants are considered for positions regardless of race, ethnic origin, age, religion or belief, marital status, gender identification, sexual orientation, or physical ability.

About the company and the project:

Dynamic IT software development company specializing in IT development and project management services mostly in web3 industry in the search for aBlockchain Developer. We support digital asset exchanges, copy trading platforms, B2Copy platforms, gaming applications, Web3, and blockchain applications, delivering high-quality, scalable, and secure solutions.

Your tasks on the position:

• Develop, test, and deploy secure and efficient smart contracts using Solidity
• Design and implement blockchain architecture and infrastructure for various use cases
• Write clean, reusable, and well-documented code following industry best practices
• Collaborate with front-end and back-end developers to integrate blockchain functionality with applications
• Conduct rigorous testing and debugging to ensure the security and functionality of smart contracts
• Stay up to date with the latest trends and advancements in blockchain technology
• Provide technical insights and recommendations for blockchain solutions

Requirements:

• 3+ years of experience in blockchain development with a strong focus on smart contracts
• Demonstrated ability to write secure, gas-efficient, and optimized smart contracts
• Hands-on experience with blockchain frameworks like Ethereum, Polygon, or other EVM-compatible chains
• Deep understanding of Layer 2 blockchain architectures (e.g., rollups, zkEVMs, optimistic rollups) — including bridging, state commitment, and fraud/validity proofs
• Solid grasp of blockchain security best practices (e.g., reentrancy, access control, gas efficiency, upgradability patterns)
• Ability to design scalable on-chain/off-chain architectures, including interaction with relayers, oracles, and decentralized storage
• Strong understanding of blockchain concepts, including consensus algorithms, token standards (ERC-20, ERC-721, ERC-1155), and decentralized applications (dApps)
• Familiarity with tools like Truffle, Hardhat, Remix, and Ganache
• Proficient in programming languages such as JavaScript, TypeScript, or Python for blockchain integration
• Experience with version control systems like Git
• English С1+

Will be an advantage:

• Experience with DeFi protocols, NFTs, or Web3 development, ideally with DePin too
• Familiarity with layer-2 scaling solutions and cross-chain communication protocols
• Knowledge of Docker, Kubernetes, or similar container orchestration tools
• Exposure to cloud platforms such as AWS, Azure, or Google Cloud
• Participation in open-source blockchain projects or contributions to the blockchain community

Benefits:

• Regular salary increases
• Career growth possible faster than in different companies
• Paid sick leave
• Medical insurance
• Residential UAE visa

Apply Now:

Ip.world is a platform for launching memecoins remixed from popular IPs. We’re reimagining how communities can speculate on the virality of their favorite creative works in a way that allows IP owners and their remixers to collaborate and earn rewards. Our goal is to bridge crypto and mainstream consumer culture by building the ultimate memecoin playground for tokenized IP remixing.

Role

We are looking for a backend engineer to build the infrastructure for powering our IP backed memecoin platform. You will lead efforts in ensuring our infrastructure is scalable, building out efficient data indexing and event sourcing pipelines, and designing our API layer. The ideal candidate for this role has extensive experience building high-performance backend systems and has basic familiarity or exposure to the memecoin ecosystem.

Responsibilities

• Build out various backend services in Golang for data aggregation and syncing
• Scale infrastructure using Kubernetes, CDNs, and cloud platforms (GCP)
• Engineer a secure, high-performance API layer to support both internal platform operations and extensible third-party integrations
• Create our database, caching and data ingestion workflows to support fast querying and saving of data using Postgres and Redis
• Build and optimize an efficient indexing solution for supporting fast searching and filtering of metadata using Elasticsearch
• Develop a robust API layer to serve our platform actions and queries, and for future 3rd party integrations using golang
• Collaborate with frontend engineering teams to implement WebSocket solutions for real-time features including leaderboards, live updates, and user notification systems

Requirements

• 4+ years of industry experience working as a backend engineer (or equivalent role)
• Deep proficiency in building backend systems using Golang
• Experience working with Postgres, Redis, and Elasticsearch (or similar technologies)
• Familiarity with WebSockets and building real-time events and notifications systems
• Knowledge of basic CI / CD (e.g. using GH Actions paired with Terraform for IaC)
• Experience designing and building out scalable backend systems in various cloud environments (AWS / GCP) using container orchestration tools like Kubernetes
• Has exposure to crypto, particularly in building any kind of DeFi or SocialFi apps
• Passionate about the memecoin or crypto ecosystem