Key Responsibilities:

• Design, develop and maintain smart contracts on Ethereum, Hyperledger, and other blockchain platforms
• Build decentralized applications (dApps) that utilize smart contracts
• Collaborate with other team members to design and implement new features and functionalities for our blockchain-based products
• Participate in code reviews and ensure that all code is of high quality and adheres to security best practices
• Help to maintain and improve the performance of our existing blockchain-based products
• Stay up-to-date with the latest developments in blockchain technology and research new technologies that can be applied to our products
• Provide technical expertise on blockchain-related matters to internal teams and external clients

• Strong experience with one or more programming languages, such as Solidity, Rust, Go, and C++
• Familiarity with smart contract development and the Ethereum Virtual Machine (EVM) and Solana
• Knowledge of blockchain platforms such as Ethereum, Hyperledger, and Bitcoin
• Understanding of distributed systems and cryptography
• Familiarity with web3 technologies like web3.js, Metamask, Infura, etc.
• Experience with consensus algorithms like PoW, PoS, PoA, dBFT, etc.
• Experience with security best practices for smart contract and dApp development
• Strong problem-solving skills and ability to think creatively
• Strong passion for blockchain technology and its potential to change the world
• Excellent collaboration skills in a remote work environment using tools like Jira and GitLab.

• Competitve Salary and Bonuses (negotiable, based on skills and expereince)
• Generous paid time off
• Flexibility on location and time zone
• Flexible working hours

How to Apply:Please apply if you think you would be suitable for this role. We look forward to your application and the opportunity to welcome you to our team.

Due to the high volume of applications we anticipate, we regret that we are unable to provide individual feedback to all candidates. If you do not hear back from us within two weeks of your application, please assume that you have not been successful on this occasion. We genuinely appreciate your interest and wish you the best in your job search.

Commitment to Equality and Accessibility:At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing email.

MLabs Ltd collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd’s Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting email.

Apply Now:

Interested in working on cutting-edge blockchain technology and creating equitable access to the global financial system? Since 2014, the mission-driven team at the Stellar Development Foundation (SDF) has helped fuel the tremendous growth of the Stellar blockchain network, an open-source platform that operates at high-scale today. Developers and companies around the world build on it, and the SDF team is expanding to support the rapidly growing and changing Stellar ecosystem. As a part of the Developer Experience Team, you will work on the products that help developers onboard and create applications on the Stellar Network. Our team builds a few applications, some of them being Stellar Laboratory, Stellar CLI and the Stellar Javascript SDK. You will play a pivotal role as a visionary technical leader, shaping and innovating the tools that serve as the backbone of our customers' experiences. This role has a direct impact in making the Stellar tooling the best in the industry and will be working very closely with our Product and Developer Relations teams. In this role, you will join our Developer Experience team, focusing on Stellar CLI development for the Stellar Network. You will have the opportunity to collaborate with a passionate, mission-driven team dedicated to empowering developers and advancing open financial infrastructure worldwide. In this role, you will:

Lead the design, development, and maintenance of the Stellar CLI Collaborate closely with Product and Developer Relations teams to enhance developer experience Innovate and improve existing tools for all projects under the DevX umbrella Develop and enhance smart contract tooling capabilities within the Stellar ecosystem to support secure, scalable decentralized application development Contribute to making Stellar tooling the best in the industry Mentor junior engineers and provide technical leadership Collaborate with Platform, DevRel and Ecosystem engineering teams to ensure we are shipping pragmatic solutions Engage with the developer community to gather feedback and implement improvements

You have:

6+ years of professional software engineering experience with a focus on developer tools or infrastructure Proficiency in Rust with a track record of developing and maintaining production-grade systems Experience building and maintaining client applications or libraries Sound backend development skills, including expertise in application development best practices and hands-on experience with at least one server-side language (e.g., Go, Python, Node.js) Exposure to smart contract development ecosystems, including tools, frameworks, and security best practices (experience with platforms like Solana, Ethereum, or Stellar smart contracts is a plus). Familiarity with blockchain technology and cryptography concepts Exceptional problem-solving abilities paired with clear, collaborative communication skills A passion for simplifying complex technical concepts into intuitive, developer-friendly tools and workflows

Bonus Points if:

Experience with open-source project management Knowledge of the Stellar Network and its ecosystem Familiarity with other programming languages (e.g., Python, Javascript, Go) Understanding of financial technology and decentralized systems Bonus: Has written smart contracts in Rust or Solidity (Rust preferred)

We offer competitive pay with a base salary range for this position of $170,000 - $260,000 depending on job-related knowledge, skills, experience, and location. In addition, we offer lumen-denominated grants along with the following perks and benefits: USA Benefits/Perks:

Competitive health, dental & vision coverage with most plans covered at 100% for the employee + any dependents Flexible time off + 15 company holidays including a company-wide holiday break Up to 12 weeks of paid parental leave for both non-birthing and birthing parents, as well as up to 14 weeks of paid pregnancy leave for birthing parents Gym reimbursement ($80 per month) Life & ADD (up to $50K) Short & Long term disability 401K with 4% match Health & Dependent Care FSA Accounts Commuter benefits with $250/month employer contribution Health Savings Account (HSA) with monthly employer contribution Family building benefits through Kindbody Wellbeing benefits (One Medical, Rightway, Headspace) L&D budget of $1,500/year Daily lunch and snacks in office Company retreats

LI-Hybrid

About Stellar   Stellar is more than a blockchain. Powered by a decentralized, fast, scalable, and uniquely sustainable network made for financial products and services and a thriving and passionate ecosystem that includes a non-profit organization driven by a mission, Stellar is paving the path to unlock the world’s economic potential through blockchain technology. Built with speed and low costs in mind, the Stellar network provides builders and financial institutions worldwide a platform to issue assets, and to send and convert currencies in real time creating real world utility. Founded in 2014, the Stellar Development Foundation (SDF) supports the continued development and growth of the Stellar network and also serves the ecosystem of NGOs, corporations, universities, small businesses, governments, and solo entrepreneurs building on the Stellar network through tooling, funding and strategic collaborations. Together, Stellar is where blockchain meets the real world.   About the Stellar Development Foundation   The Stellar Development Foundation (SDF) is a non-profit organization focused on working with and supporting changemakers to create equitable access to the global financial system through blockchain technology. SDF provides grants, investments, funding, and other awards to builders and organizations. SDF also develops resources and tooling on the Stellar network to help unlock real world utility. As a nonprofit foundation, SDF puts the health of the Stellar network and the Stellar ecosystem and its mission above all else.   We look forward to hearing from you!   Privacy Policy   By submitting your application, you are agreeing to our use and processing of your data in accordance with our Privacy Policy.   SDF is committed to diversity in its workforce and is proud to be an equal opportunity employer. SDF does not make hiring or employment decisions on the basis of race, color, religion, creed, gender, national origin, age, disability, veteran status, marital status, pregnancy, sex, gender expression or identity, sexual orientation, citizenship, or any other basis protected by applicable local, state or federal law.

Apply Now:

About Aztec At Aztec, our goal is to add privacy to Ethereum. In the current public blockchain paradigm, users and entities unknowingly broadcast data in the public, compromising privacy and security to get trustlessness. Not only are unencrypted blockchains inherently privacy-exposing, they require significant redundancy to compute and verify the legitimacy of transactions. Implementing scalable encryption in a public blockchain paradigm requires cutting-edge math and engineering. Thankfully, our team of scientists and engineers invented Plonk, the industry-standard zkSNARK, and Noir, the universal language of zero knowledge. Now, we’re building a first of its kind Layer 2 with private smart contracts. This requires new cryptographic primitives, a zero-knowledge DSL for writing contracts, a privacy-friendly execution environment, a carefully designed set of circuits that prove the validity of the chain to L1, a decentralized block-building and proving mechanism, and a top-tier user and developer experience. And it’s now time to bring it to market. We’ve raised $125 million from industry-leading investors including a16z crypto, Paradigm, Variant, Consensys, and a_capital, and we’re growing quickly.The Role We’re looking for a DevOps Engineer with deep Linux expertise and a passion for building developer-centric tooling. You’ll work closely with our CTO and engineering teams to enhance our internal infrastructure, CI systems, and productivity pipelines. This is a hands-on, high-impact role - ideal for someone who thrives on owning the tools that engineers rely on every day. What You’ll Do

Take ownership of Aztec’s custom CI system and internal build tools. Enhance and build CI dashboards to improve observability of engineering workflows. Harden CI infrastructure using least privilege principles and robust sandboxing. Implement productivity enhancements across C++, Rust, Solidity, and TypeScript build systems. Investigate and resolve low-level bugs related to Linux processes, signals, memory, and IPC. Collaborate face-to-face during your ramp-up phase in our London office. Optionally grow into a leadership role as the internal infrastructure team expands.

💡 Explore our CI system in action: http://ci.aztec-labs.com and the code here. About You You might be a great fit if you:

Prefer scripting custom Bash over fighting YAML in legacy CI systems. Experience with cgroups, kernel namespaces, virtual memory, /proc, and tracing syscalls. Extensive experience with terraform and AWS cloud infrastructure. Know Docker intimately, from minimizing image sizes to how it leverages kernel features. Have experience maintaining complex software stacks and CI systems at scale. Are comfortable with debugging process groups, signals, and build failures at the OS layer. Take pride in building secure, reliable, and fast developer infrastructure.

What We Offer:

Flexible, remote-first culture with HQ in London. Competitive salary + equity/token options. 25 days annual leave + bank holidays. Health, dental, and retirement benefits (based on location). Quarterly offsites for team collaboration and bonding. Conference and learning budget for continual professional development.

A chance to work on truly cutting-edge zero-knowledge infrastructure with some of the best minds in the field.Aztec Labs is an equal opportunity employer and we value creativity, diversity, and intellectual curiosity. If you're passionate about leveraging your creative talents to make a real-world impact, and if you want to be part of a team that's shaping the future of digital privacy, then we would love to hear from you.

Apply Now:

About Dune

Dune is on a mission to make crypto data accessible. We’re a collaborative multi-chain analytics platform used by thousands of developers, analysts, & investors to understand the on-chain world and the frontiers of finance. We’re a team of ~50 employees,  working together across Europe and eastern US timezones 🌍️. We believe in our mission, and in building a powerful, open product that allows individuals and communities to do deep research into important ecosystems like Bitcoin, Ethereum, Solana, and many more. 

We’re backed by some of the world's best investors. In February 2022, we announced our Series B funding round led by Coatue and Union Square Ventures, an important milestone that allowed us to double down on our mission. We’re using the funds to educate, reward and empower a new generation of onchain analysts aka Wizards 🧙‍♀️

If you want to have one of the highest impact jobs on the planet, come join our wonderful team of Galaxy brains.

Learn more about us:

The Dune Manifesto

Dune's Vision

Values and working at Dune

About the role

As a software engineer in Dune focused on Data Platform you will play a key role in ensuring our data platform scales to accommodate an ever-growing volume of public blockchain data. This is a role that involves thinking about large scale distributed systems and distributed databases, and is ideal for anyone passionate about those topics.

We are building a data platform that

• Can ingest and process petabytes of data

• Allows third parties to ingest data

• Facilitates performant SQL queries across datasets

In this role you will:

• Design and develop distributed systems in a principled way and take part in high impact architectural decisions

• Engage in stimulating technical challenges in topics such as distributed systems, very large databases, SQL processing, data modelling, or systems performance

• Assume ownership of components within our blockchain data platform such as data ingestion and decoding

• Write code mostly in Kotlin with some Java and Rust with a strong emphasis on good design and performance

• Contribute to the internal developer experience by improving local test setups, integration tests, and incremental deployment processes.

• Work on one of the fastest engineering teams in the industry.

• Building AI agents for automation into the team.

You might be a great fit for this role if:

• You are a strong generalist with fundamental computer science knowledge. You use this knowledge to easily adapt to new technologies and scenarios, and to find the right solutions for the problems at hand.

• You have an understanding of distributed system design, or the drive to learn if you’re a more junior engineer. Our work is as much about understanding and designing systems as it is about coding in a particular language.

• Have an understanding of blockchain technology and RPC interactions

• Have experience with datalakes and formats like parquet, delta, iceberg

• You have great collaboration and communication skills. We work on the principle that the best output emerges from effective team work and respectful/constructive discussions.

• Coding experience in any JVM language, along with a zeal for writing well-designed, testable software

Perks & Benefits

• A competitive salary and equity package 🚀. Both salary and equity is top 25% of companies in the space

• Our employee equity scheme has world-class employee-friendly terms with a heavily discounted strike price (~90%) and a 10-year exercise window

• 5 weeks PTO + local public holidays (that can be swapped to suit you) 🏖

• A fully remote-first approach 🧑‍💻 within a distributed team with flexible working hours; you structure your own day 

• Say goodbye to meeting overload! We believe in a healthy mix of async and sync work, so you can focus on what truly matters—no more wasted time on endless meetings!

• Good health is important, so we offer private medical insurance, dental & vision as standard 🩺

• We believe in paid parental leave 👶 to help you celebrate this important milestone, transition to your new life, and bond with your new baby. We offer 16 weeks to primary and 6 weeks to secondary caregivers, fully paid. Plus a 2-week part-time phased return at full pay to help you get used to your new (and slightly more complex!) schedule

• Quarterly offsites in various exciting locations as a company or team to connect, work together and have fun (so far in Tuscany 🇮🇹 Berlin 🇩🇪 Austria 🇦🇹 and Athens 🇬🇷).

• On top of this 👆each person gets a yearly travel allowance to connect and co-work with someone or a team of people for a few days.

• An allowance for your at-home setup, to ensure you are happy, comfortable and productive. If you prefer a local co-working space, we’ll pay for your desk.

• Work with some of the best people you’ll ever get to meet!

• And of course, you get some awesome Dune swag! ✌️😎

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We are dedicated to building a diverse, inclusive, and authentic workplace, so if you’re excited about this role but your experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyway. You may be just the right candidate for this or other roles.

Apply Now:

Apply Now:

​​Developer Experience (DevX) is responsible for making sure all engineers at Coinbase build high-quality products while being productive and engaged. We do this by providing infrastructure, libraries, frameworks, and tooling to make it easier and faster to build high quality applications. Within DevX, our Onchain Pod is focused on defining the future of developer experience for onchain developers, both within Coinbase and in the broader crypto ecosystem. We believe that the onchain platform is the most important builder platform since the internet (“online”). As a Staff Software Engineer on this team, you’ll be instrumental in designing, building, and executing core solutions that drive our systems.

What you’ll be doing (ie. job duties):

• Lead the new Onchain Pod and help define its charter, vision, mission, and roadmap.
• Work with stakeholders in Engineering and Security to identify pain points and insecure processes in the onchain development lifecycle.
• Architect and build new tooling to improve onchain development for Coinbase and the broader ecosystem. Augment and maintain existing tooling.
• Drive the evolution of Web3 development toward Web2-level tooling, reliability, and ergonomics - reducing friction and making onchain development more accessible.
• Take ownership of the team's processes and services, ensuring SLA adherence.
• Be a thoughtful technical voice within the team, aiding in diligent architectural decisions and fostering a culture of high-quality code and engineering processes.
• Mentor and collaborate with other members of the team to deliver high quality solutions.
• Champion a “don’t DIY unless necessary” philosophy by leveraging proven industry standards and modern frameworks wherever possible.
• Stay current with emerging trends in the Web3 tooling ecosystem, and integrate best-in-class solutions to accelerate internal development without reinventing the wheel.

What we look for in you (ie. job requirements):

• You have 8+ years of software engineering experience.
• You are passionate about enabling onchain development.
• You have extensive experience with smart contract deployments, execution, and management (EVM in particular).
• You have a deep understanding of how popular L1s and L2s work.
• You have an energy and self-drive for continuous learning as crypto is a constantly and rapidly changing space.
• You excel in clear, direct, and kind communication with technical and non-technical stakeholders.
• You have experience building relationships with security, product, and engineering teams.
• You balance long term strategic thinking with short term tactical planning.
• You are familiar with cloud infrastructure (e.g., AWS), containerization (e.g., Kubernetes), and Infrastructure as Code tools like Terraform.
• You have a Bachelor’s or Master’s degree in Computer Science, Software Engineering, or equivalent experience.

Nice to haves:

• Prior experience working in a Developer Experience/Productivity, Platform, or similar domain team.
• Have previous experience at a fast paced, high growth stage internet/software company.
• Contributions to open-source crypto projects, such as OP Stack.
• Experience with Golang, Geth, Rust, Reth, Foundry, Solidity, or other crypto tools.
• An interest in blockchain security, red-teaming, and exploit prevention.

Job #: GPBE06US

*Answers to crypto-related questions may be used to evaluate your onchain experience.

#LI-Remote

Apply Now:

Blockchain.com is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for a skilled, hands-on DeFi Software Engineer to sit on our Institutional Trading team. You will play a critical role in building financial and crypto-native trading strategies. As a Defi Software Engineer you will implement automated trading strategies on various blockchains, work with traders / quants to generate revenue, and be part of one of the most competitive trading desks WHAT YOU WILL DO

Develop code (in Rust / Solidity / Python) to automate DeFi trading strategies Work closely with traders / quants on our Institutional Trading team  Implement best practice code to automate strategies that run on DApps (Decentralized Apps) and take advantage of blockchain-specific implementation (MEV for example, but not limited to this)

WHAT YOU WILL NEED

Excellent technical skills in Rust or Solidity,  Excellent understanding of blockchains / decentralized apps, The desire to be part of a small, successful team and scale it even further, A strong sense of ownership and responsibility in a fast-paced environment, You know how blockchains / decentralized apps work, preferably, you worked closely with them on the technical level before, You take full responsibility for all the projects you work in.

COMPENSATION & PERKS:

Full-time salary based on experience and meaningful equity in an industry-leading company Hybrid model working from home & our office in London Unlimited vacation policy; work hard and take time when you need it Work from Anywhere Policy: You can work remotely from anywhere in the world for up to 20 days per year. Apple equipment The opportunity to be a key player and build your career at a rapidly expanding, global technology company in an emerging field Flexible work culture  

Blockchain is committed to diversity and inclusion in the workplace and is proud to be an equal opportunity employer. We prohibit discrimination and harassment of any kind based on race, religion, color, national origin, gender, gender expression, sex, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law. This policy applies to all employment practices within our organization, including hiring, recruiting, promotion, termination, layoff, recall, leave of absence, and apprenticeship. Blockchain makes hiring decisions based solely on qualifications, merit, and business need at the time. You may contact our Data Protection Officer by email at email. Your personal data will be processed for the purposes of managing Controller’s recruitment related activities, which include setting up and conducting interviews and tests for applicants, evaluating and assessing the results thereto, and as is otherwise needed in the recruitment and hiring processes. Such processing is legally permissible under Art. 6(1)(f) of Regulation (EU) 2016/679 (General Data Protection Regulation) as necessary for the purposes of the legitimate interests pursued by the Controller, which are the solicitation, evaluation, and selection of applicants for employment. Your personal data will be shared with Greenhouse Software, Inc., a cloud services provider located in the United States of America and engaged by Controller to help manage its recruitment and hiring process on Controller’s behalf.  Accordingly, if you are located outside of the United States, your personal data will be transferred to the United States once you submit it through this site. Because the European Union Commission has determined that United States data privacy laws do not ensure an adequate level of protection for personal data collected from EU data subjects, the transfer will be subject to appropriate additional safeguards under the standard contractual clauses.  

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

We are looking for a highly skilled Blockchain Developer with expertise in Solidity and Rust to join our growing engineering team. You will play a key role in developing and optimizing smart contracts, blockchain protocols, and DeFi components that power the Caiz ecosystem.

As part of the core blockchain development team, you’ll work on both Ethereum-compatible smart contracts and Rust-based custom chain logic, contributing to secure, scalable, and innovative blockchain infrastructure.

Responsibilities:

• Design, develop, and deploy smart contracts using Solidity on EVM-compatible blockchains.
• Build and maintain Rust-based blockchain modules, such as on Substrate or Solana-compatible platforms.
• Contribute to the design of custom blockchain protocols and token standards.
• Write secure, gas-optimized, and thoroughly tested smart contracts.
• Collaborate with frontend and backend teams to integrate blockchain components into products.
• Conduct code reviews, audits, and vulnerability assessments for blockchain code.
• Analyze and improve the performance, security, and scalability of the Caiz blockchain.
• Stay up-to-date with the latest developments in blockchain technologies, including new EIPs, cryptographic primitives, and layer-2 solutions.

Requirements

Experience:

• 3+ years of experience in blockchain development with hands-on coding in Solidity and Rust.
• Strong understanding of smart contract design, blockchain architecture, cryptography, and consensus mechanisms.
• Experience developing and deploying smart contracts on Ethereum or similar EVM chains.
• Proficiency in Rust for blockchain environments such as Substrate or Solana.
• Familiarity with Web3.js, Ethers.js, Hardhat, Truffle, and related tools.
• Understanding of DeFi protocols, token standards (ERC-20, ERC-721, etc.), and layer-1/layer-2 ecosystems.
• Experience with version control systems (Git) and CI/CD workflows.
• Strong problem-solving skills and ability to write clean, maintainable code.

Preferred Skills

• Experience in building or contributing to a Layer 1 or Layer 2 blockchain.
• Knowledge of blockchain security best practices and audit processes.
• Exposure to zero-knowledge proofs (ZK), rollups, or cross-chain bridges.
• Experience in working within agile or startup environments.
• Understanding of Islamic finance or Sharia-compliant financial principles is a plus.

Level of studies: Bachelor’s degree in Computer Science, Software Engineering, Mathematics, or a related technical 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:

Interested in working on cutting-edge blockchain technology and creating equitable access to the global financial system? Since 2014, the mission-driven team at the Stellar Development Foundation (SDF) has helped fuel the tremendous growth of the Stellar blockchain network, an open-source platform that operates at high-scale today. Developers and companies around the world build on it, and the SDF team is expanding to support the rapidly growing and changing Stellar ecosystem. As a C++ Engineer at Stellar, you'll be at the heart of it all—designing and evolving Stellar Core, the distributed engine powering our global ledger and consensus. This is your chance to work on real-world, high-impact distributed systems that are actively used by developers, institutions, and builders around the world. You’ll tackle complex, meaningful challenges that push the boundaries of what’s possible in blockchain—boosting performance, strengthening decentralization, and designing incentive mechanisms that drive long-term network health. Whether you're optimizing peer-to-peer networking, building resilience against coordinated attacks, or simulating consensus models to validate security and scalability—you’ll be doing it all. If you're excited by formal verification, simulations, distributed systems, and multi-core performance, and want to help shape the foundation of an open financial future, we’d love to meet you. In this role, you will:

Design and build key components of Stellar Core - the backbone software behind the Stellar Network. Design and develop robust, scalable, and extensible technologies that empower our developers and network participants. Collaborate on new architectures and subsystems, working alongside our CTO, our team of engineers, and our community of open source developers. Write clean, maintainable code with an emphasis on edge case analysis and future-proofing our work. Own core subsystems of Stellar Core, and help the team hit critical product milestones. Collaborate with the team on code review and design, and contribute to best practices for all of engineering at SDF. Investigate and refactor performance bottlenecks in order to continue scaling the system. Author detailed technical feature and protocol (RFC) specifications - we take design seriously, and we encourage everyone to be a part of our RFC processes.

You have: 

You have 4+ years of experience developing software on a team. You have a BS or MS in Computer Science or equivalent field. You excel in writing code in modern C++ or Rust in a production environment. You're a great communicator that can advocate and lead technical discussions, especially during the design and code review process. You have a solid understanding of software design patterns, and how to build components that are reusable, extensible, and modular. You are knowledgeable of best practices and development tools and are passionate about technological innovation. You have a passion for performance debugging and benchmarking. You love a good challenge in an ever-evolving space - many of the challenges we face are being faced for the first time! You're enthusiastic about working on a small, growing team where you'll be given a lot of autonomy. You're open, empathetic, and care about putting the best ideas forward in a collaborative and helpful manner.

Bonus Points if:

You have direct experience with designing and implementing distributed systems. You have a strong curiosity in blockchain technologies and cryptocurrencies, and understand the fundamentals of these systems.

We offer competitive pay with a base salary range for this position of $180,000 - $290,000 depending on job-related knowledge, skills, experience, and location. In addition, we offer lumen-denominated grants along with the following perks and benefits: USA Benefits/Perks:

Competitive health, dental & vision coverage with most plans covered at 100% for the employee + any dependents Flexible time off + 15 company holidays including a company-wide holiday break Up to 12 weeks of paid parental leave for both non-birthing and birthing parents, as well as up to 14 weeks of paid pregnancy leave for birthing parents Gym reimbursement ($80 per month) Life & ADD (up to $50K) Short & Long term disability 401K with 4% match Health & Dependent Care FSA Accounts Commuter benefits with $250/month employer contribution Health Savings Account (HSA) with monthly employer contribution Family building benefits through Kindbody Wellbeing benefits (One Medical, Rightway, Headspace) L&D budget of $1,500/year Daily lunch and snacks in office Company retreats

LI-HybridAbout Stellar

  Stellar is more than a blockchain. Powered by a decentralized, fast, scalable, and uniquely sustainable network made for financial products and services and a thriving and passionate ecosystem that includes a non-profit organization driven by a mission, Stellar is paving the path to unlock the world’s economic potential through blockchain technology. Built with speed and low costs in mind, the Stellar network provides builders and financial institutions worldwide a platform to issue assets, and to send and convert currencies in real time creating real world utility. Founded in 2014, the Stellar Development Foundation (SDF) supports the continued development and growth of the Stellar network and also serves the ecosystem of NGOs, corporations, universities, small businesses, governments, and solo entrepreneurs building on the Stellar network through tooling, funding and strategic collaborations. Together, Stellar is where blockchain meets the real world.   About the Stellar Development Foundation   The Stellar Development Foundation (SDF) is a non-profit organization focused on working with and supporting changemakers to create equitable access to the global financial system through blockchain technology. SDF provides grants, investments, funding, and other awards to builders and organizations. SDF also develops resources and tooling on the Stellar network to help unlock real world utility. As a nonprofit foundation, SDF puts the health of the Stellar network and the Stellar ecosystem and its mission above all else.   We look forward to hearing from you!   Privacy Policy   By submitting your application, you are agreeing to our use and processing of your data in accordance with our Privacy Policy.   SDF is committed to diversity in its workforce and is proud to be an equal opportunity employer. SDF does not make hiring or employment decisions on the basis of race, color, religion, creed, gender, national origin, age, disability, veteran status, marital status, pregnancy, sex, gender expression or identity, sexual orientation, citizenship, or any other basis protected by applicable local, state or federal law.

Apply Now:

As a part of the Developer Experience Team, you will work on the products that help developers onboard and create applications on the Stellar Network. Our team builds a few applications, some of them being Stellar Laboratory, Stellar CLI and the Stellar Javascript SDK. You will play a pivotal role as a visionary technical leader, shaping and innovating the SDKs that serve as the backbone of our customers' experiences. This role has a direct impact in making the Stellar tooling the best in industry and will be working very closely with our Product and Developer Relations teams. In this role, you will join our Developer Experience team, focusing on Javascript SDK development for the Stellar Network. As a key member of this team, you’ll be responsible for designing and owning the Stellar Javascript SDK, a critical tool that enables developers to build applications on the Stellar Network. In this role, you will:

Lead the design, development, and maintenance of the Stellar Javascript SDK Collaborate closely with Product and Developer Relations teams to enhance developer experience Innovate and improve existing tools for all projects under the DevX umbrella. Contribute to making Stellar tooling the best in the industry Mentor junior engineers and provide technical leadership Engage with the developer community to gather feedback and implement improvements

You have:

5+ years of professional software development experience JavaScript experience, API design Experience with SDK development, bundlers and babel Experience building and maintaining client applications or libraries Expertise in Backend Development: Strong proficiency in Node.js, TypeScript/JavaScript best practices, along with experience in at least one other server-side language Familiarity with blockchain technology and cryptography concepts Excellent problem-solving and communication skills Making complicated things easier to use

Bonus Points if (optional):

Experience with open-source project management Knowledge of the Stellar Network and its ecosystem Familiarity with other programming languages (e.g., Python, Rust) Understanding of financial technology and decentralized systems

We offer competitive pay with a base salary range for this position of $170,000 - $260,000 depending on job-related knowledge, skills, experience, and location. In addition, we offer lumen-denominated grants along with the following perks and benefits: USA Benefits/Perks:

Competitive health, dental & vision coverage with most plans covered at 100% for the employee + any dependents Flexible time off + 15 company holidays including a company-wide holiday break Up to 12 weeks of paid parental leave for both non-birthing and birthing parents, as well as up to 14 weeks of paid pregnancy leave for birthing parents Gym reimbursement ($80 per month) Life & ADD (up to $50K) Short & Long term disability 401K with 4% match Health & Dependent Care FSA Accounts Commuter benefits with $250/month employer contribution Health Savings Account (HSA) with monthly employer contribution Family building benefits through Kindbody Wellbeing benefits (One Medical, Rightway, Headspace) L&D budget of $1,500/year Daily lunch and snacks in office Company retreats

About Stellar   Stellar is more than a blockchain. Powered by a decentralized, fast, scalable, and uniquely sustainable network made for financial products and services and a thriving and passionate ecosystem that includes a non-profit organization driven by a mission, Stellar is paving the path to unlock the world’s economic potential through blockchain technology. Built with speed and low costs in mind, the Stellar network provides builders and financial institutions worldwide a platform to issue assets, and to send and convert currencies in real time creating real world utility. Founded in 2014, the Stellar Development Foundation (SDF) supports the continued development and growth of the Stellar network and also serves the ecosystem of NGOs, corporations, universities, small businesses, governments, and solo entrepreneurs building on the Stellar network through tooling, funding and strategic collaborations. Together, Stellar is where blockchain meets the real world.   About the Stellar Development Foundation   The Stellar Development Foundation (SDF) is a non-profit organization focused on working with and supporting changemakers to create equitable access to the global financial system through blockchain technology. SDF provides grants, investments, funding, and other awards to builders and organizations. SDF also develops resources and tooling on the Stellar network to help unlock real world utility. As a nonprofit foundation, SDF puts the health of the Stellar network and the Stellar ecosystem and its mission above all else.   We look forward to hearing from you!   Privacy Policy   By submitting your application, you are agreeing to our use and processing of your data in accordance with our Privacy Policy.   SDF is committed to diversity in its workforce and is proud to be an equal opportunity employer. SDF does not make hiring or employment decisions on the basis of race, color, religion, creed, gender, national origin, age, disability, veteran status, marital status, pregnancy, sex, gender expression or identity, sexual orientation, citizenship, or any other basis protected by applicable local, state or federal law.

Apply Now:

Apply Now:

Apply Now:

About Vac

Vac builds public good protocols for the decentralised web. We do applied research based on which we build protocols, libraries and publications.

The role

We are seeking an experienced Distributed Systems Evaluation Engineer to join the Vac DST team. This role focuses on rigorously assessing the performance and reliability of IFT projects at scale. You’ll be responsible for designing and executing comprehensive evaluation strategies, leveraging both large-scale lab deployments and protocol behaviour modelling scripts. Your expertise will be crucial in analysing these complex distributed systems, automating intricate test scenarios, and providing in-depth insights into system behaviours.

Working closely with cross-functional teams, you’ll troubleshoot complex issues and translate technical data into actionable recommendations. Proficiency in containerisation, cloud technologies, and distributed systems principles is essential.

This position offers the opportunity to make a significant impact on the robustness and scalability of IFT projects, contributing to the development of next-generation decentralised technologies.

Key responsibilities

• Design, implement, and maintain sophisticated tools for analysing distributed systems at scale, ensuring robust and efficient testing processes.
• Orchestrate and automate large-scale deployments to rigorously validate the functionality, performance, and scalability of complex distributed systems.
• Identify, document, reproduce, and troubleshoot intricate issues in distributed environments, collaborating closely with IFT project teams to resolve challenges.
• Develop a comprehensive understanding of IFT project protocols and components to provide insightful analyses that drive improvements and inform decision-making.
• Create and maintain scripts that model protocol behaviour, utilising these models to validate and sanity-check large-scale deployment runs.
• Work with Docker, Kubernetes, and POSIX-like systems
• You ideally will have
• Solid experience with scripting languages like Python.
• Experience with statistical analysis tools, like pandas, seaborn.
• Experience with systems programming languages like Nim, Go, Rust.
• Understanding of network behaviours (libp2p, gossipsub, p2p networks).
• Working knowledge of Docker, Kubernetes, and POSIX-like systems.
• Excellent written and conversational communication skills.
• Alignment with our core values and principles.

Bonus points

• Experience with off-the-shelf networking stacks such as libp2p.
• Experience in blockchain technology.
• Experience working for an open-source organisation.
• Hiring process
• Interview with our POps team
• Interview with team member from the Vac DST team
• Take home assignment & interview with team member from the Vac DST team
• Interview with Vac team lead

Compensation

The expected compensation range for this role is negotiable, dependent on how we assess your skills and experience throughout our interview process. We are happy to pay in any mix of fiat/crypto.

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.

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

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

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

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

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

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

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

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

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

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:

About Vac:

Vac builds public good protocols for the decentralised web. We do applied research based on which we build protocols, libraries and publications.

Vac’s R&D Service Units are integral to supporting IFT (The Institute of Free Technology) projects by researching and developing base components and secure, unbiased protocols.

The Vac Security service unit provides comprehensive support to IFT projects by conducting security audits and helping develop robust security plans. In addition to assisting IFT projects, the security team also supports other IFT services by offering expert guidance on security best practices and risk management strategies. This collaborative approach ensures that all aspects of the IFT ecosystem benefit from enhanced security measures.

By identifying potential vulnerabilities, assessing risks, and implementing effective security solutions tailored to specific needs, the Vac Security service unit plays a crucial role in strengthening the overall security posture of IFT.

The role:

We are looking for an Application Security Engineer to join our security service unit. In this role, you’ll perform in-depth reviews of critical code (with a focus on low-level languages like Rust, Nim, and C++), identify both code-level and protocol-level vulnerabilities, and support incident response efforts.

You’ll collaborate closely with development teams to remediate security issues and ensure best practices are followed. You’ll also play a key role in preparing for external security audits—defining audit scope, organising technical documentation, and working directly with auditors to ensure valuable and actionable results.

This is a hands-on position for someone passionate about secure software development and proactive risk mitigation.

Key responsibilities:

• Perform in-depth manual and automated reviews of source code (with a focus on low-level languages such as Rust, Nim, and C++) to identify security vulnerabilities and logic flaws.
• Analyse and review critical code paths for potential weaknesses.
• Identify and assess both code-level vulnerabilities (e.g., buffer overflows, injection flaws) and protocol-level issues (e.g., insecure cryptographic implementations, protocol misconfigurations).
• Execute incident response activities, including detection, analysis, containment, and recovery, while documenting findings and lessons learned for continuous improvement.
• Collaborate with development and product teams to remediate identified vulnerabilities, provide security guidance, and ensure secure coding practices are followed.
• Define clear audit objectives and scope for external audits, focusing on the most critical components and protocols.
• Prepare and organise all relevant documentation (architecture diagrams, codebase, threat models, protocol specifications) to facilitate an efficient and valuable external audit process.
• Engage with external auditors early to clarify expectations and provide necessary context, ensuring the audit delivers actionable results.
• Address and remediate issues identified in previous audits, and document improvements to demonstrate ongoing security maturity.

You ideally will have:

• Minimum of 5 years of experience in Web3 security engineering, with proven experience securing blockchain protocols, smart contracts, or cryptographic systems.
• Proficiency in low-level programming languages (Rust, Nim, C++).
• Expertise in secure coding practices, including identification of code/protocol-level vulnerabilities (e.g., buffer overflows, injection attacks) and code analysis/debugging.
• Experience with manual/automated code review techniques and penetration testing in Web3 ecosystems.
• Familiarity with cryptographic protocols, secure protocol design, and blockchain/distributed systems security.
• Incident response capabilities (detection, analysis, containment, recovery).
• Experience collaborating with development/product teams to remediate vulnerabilities, including SSDLC processes and external audit preparation.
• Strong documentation and communication skills for technical materials and stakeholder interactions (internal teams, auditors).
• Deep interest in blockchain technology and decentralisation.

Bonus points:

• Experience with static and dynamic analysis tools (e.g. CodeQL, Valgrind).
• Knowledge of formal verification methods and tools.
• Background in penetration testing or red teaming.
• Ability to educate and train others on security best practices. Contributions to open-source security projects or published security research.

Hiring process:

• Interview with our POps team.
• Interview with the Vac Security unit lead.
• Take home assignment + discussion with a team member from the Vac Security unit.
• Interview with a Vac team lead.

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:

About Aztec

• Design and build tools & SDKs that enable developers to build powerful, privacy-preserving dApps on Aztec.
• Develop a secure client-side execution environment, used by wallets and applications to produce and handle encrypted transactions.
• Architect reusable patterns and libraries for writing auditable and verifiable Aztec smart contracts.
• Collaborate cross-functionally with protocol, cryptography, and product teams to build end-to-end privacy-preserving applications.
• Refactor, document, and test existing code for maintainability, performance, and correctness.
• Identify and reduce technical debt, while continuously improving architecture and developer ergonomics.

• 3+ years of professional software engineering experience, ideally in blockchain or cryptography-related systems.
• Deep proficiency in TypeScript, with strong software architecture and API design skills.
• Working knowledge of system-level concerns such as performance tuning, memory management, and secure data handling.
• Able to provide thoughtful code reviews and mentor other engineers.
• Comfortable working autonomously and asynchronously within a distributed team.
• Located in or able to work within GMT to EST time zones.

• Experience with Rust, Solidity, or other smart contract languages.
• Contributions to open source projects, especially in the Web3 or cryptography space.
• Familiarity with zk systems like ZCash or other privacy-preserving protocols.
• Exposure to modern web development frameworks and tooling.
• Passion for zero-knowledge cryptography and its role in reshaping the internet.

• Flexible, remote-first culture with HQ in London.
• Competitive salary + equity/token options.
• 25 days annual leave + bank holidays.
• Health, dental, and retirement benefits (based on location).
• Quarterly offsites for team collaboration and bonding.
• Conference and learning budget for continual professional development.
• A chance to work on truly cutting-edge zero-knowledge infrastructure with some of the best minds in the field.

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:

Aptos is a people-first blockchain on a mission to help billions of people achieve universal and fair access to decentralized assets in a safe and scalable way. Founded by some of the original creators and maintainers that researched, designed, and built the Diem blockchain to serve this purpose, we have dedicated several years toward this mission. We believe the open-source Diem technology we have developed is an important foundation of a safe and scalable web3 world where everyone has more equitable opportunities to grow and access financial assets with lower fees and fewer intermediaries.   Aptos (Ohlone for "The People") encompasses our mission and ethos for why we build.About The Role We are looking for a Software Engineer to join our Move language team. You will be working on designing the new generation of the Move virtual machine (VM), ensuring it is both secure and performant. If you are eager to work on cutting-edge technology,  passionate about performance, language design and runtime, and thrive in fast-paced environments, we are excited to have you join our team! What you'll be doing:

Collaborate with other engineers to analyze, optimize, and re-design components of the Move VM to improve its performance and scalability. Create benchmarks and identify performance bottlenecks of the Move VM. Implement security measures to protect the Move VM from potential vulnerabilities. Write clean, maintainable code and participate in reviews for other team members.

What we're looking for:

Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field with background in compilers, performance optimization, concurrency or related fields. Graduates as well as experienced developers will be considered. Proficiency in programming languages such as Rust, C++, or similar, with a strong understanding of systems programming.  You have experience working with or are excited to learn about virtual machines, bytecode interpreters, code generation, memory management, parallel transaction execution and performance engineering. Exceptional problem-solving skills and ability to work autonomously. Being ready to take ownership of projects, and ensuring their end-to-end delivery. Previous experience with blockchain systems and smart contracts is not necessarily needed, but is a plus.

  The base salary range for this full-time position is $180k - $300k. The range displayed on each job posting reflects the minimum and typical maximum target for new hire salaries for the position of a candidate based in the Bay Area at any level. We do hire exceptionally talented professionals with decades of experience in their field. As such, our range may be higher than what is displayed. Our base salary ranges are determined by experience and location, and we hire at all levels for multiple roles. Within the range, individual pay is determined by work location, job-related skills demonstrated during the interviews, working experience, and relevant education or training. Please note that the compensation details listed in role postings reflect the base salary only and do not include equity, tokens, or benefits.Our Benefits

100% insurance premium coverage for medical, dental, and vision for you and your dependents (US Employees) Equipment of your choice Flexible vacation time, 11 holidays, and floating company days off  Competitive Salary Equity (RSUs) (US employees) Protocol Token Grants 401k matching (US Employees) Fun and inclusive in-person and digital events

Aptos is committed to diversity in the workplace, and we’re proud to be an Equal Opportunity Employer. We do not hire on the basis of race, color, religion, creed, gender, national origin, citizenship, age, disability, veteran status, marital status, pregnancy, parental status, sex, gender expression or identity, sexual orientation, or any other basis protected by local, state or federal law. All employment is decided based on qualifications, merit, and business need.

We are committed to providing a safe and secure hiring process for all applicants. Unfortunately, there are individuals who may attempt to impersonate Aptos or our employees for fraudulent purposes.To protect yourself, please be aware of the following:

We will never ask you for payment of any kind during the application or onboarding process, including fees for background checks, training, or equipment. We will always communicate with you using our official company email domain. We will never request your personal financial information, such as your social security number or bank account details, during the initial application stages or via email or a video/voice call when onboarding.

Apply Now:

About Zscaler Serving thousands of enterprise customers around the world including 40% of Fortune 500 companies, Zscaler (NASDAQ: ZS) was founded in 2007 with a mission to make the cloud a safe place to do business and a more enjoyable experience for enterprise users. As the operator of the world’s largest security cloud, Zscaler accelerates digital transformation so enterprises can be more agile, efficient, resilient, and secure. The pioneering, AI-powered Zscaler Zero Trust Exchange™ platform, which is found in our SASE and SSE offerings, protects thousands of enterprise customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Named a Best Workplace in Technology by Fortune and others, Zscaler fosters an inclusive and supportive culture that is home to some of the brightest minds in the industry. If you thrive in an environment that is fast-paced and collaborative, and you are passionate about building and innovating for the greater good, come make your next move with Zscaler. Our Engineering team built the world's largest cloud security platform from the ground up, and we keep building. With more than 100 patents and big plans for enhancing services and increasing our global footprint, the team has made us and our multitenant architecture today's cloud security leader, with more than 15 million users in 185 countries. Bring your vision and passion to our team of cloud architects, software engineers, security experts, and more who are enabling organizations worldwide to harness speed and agility with a cloud-first strategy. We're looking for a Director, Software Development to be part of our Cyber Risk and Governance Team. Reporting to the VP, Software Engineering, you'll be responsible for:

Shaping the long-term vision for security engineering platforms and collaborating with assurance and operations leaders to drive a unified strategy Developing and implementing innovative distributed software platforms to enhance security for Zscaler's engineers and hybrid cloud infrastructure Driving the adoption and integration of owned platforms with internal stakeholders in engineering, IT, legal and compliance

What We're Looking for (Minimum Qualifications)

10+ years of experience in software development, including 5+ years of experience of development at scale on public clouds (AWS, GCP, Azure) Security Experience: 5+ years in IAM, Data Security, Network Security, Cloud/Container Security, App Security, and Vulnerability Management Over 5 years of leadership experience managing remote teams of 10+, driving growth in Agile, cross-functional environments Experienced in distributed systems and data engineering, specializing in designing, developing, and managing scalable backend infrastructures and data-driven platforms Skilled in schema design, messaging systems, storage, ETL/ELT pipelines, analytics, and BI tools

What Will Make You Stand Out (Preferred Qualifications)

Proven expertise in designing and operating scalable, autonomous, and self-recoverable applications handling millions of endpoints and billions of transactions per second Proven expertise in technical strategy, system design, and guiding architecture with proficiency in Java, Python, Golang, or Rust Proficient in secure application development, including SDLC, authentication/authorization, secure data management, and addressing security defects

LI-Onsite

LI-SK3At Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with. We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging. Join us in our mission to make doing business seamless and secure.

Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including:

Various health plans Time off plans for vacation and sick time Parental leave options Retirement options Education reimbursement In-office perks, and more!

By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines. Zscaler is committed to providing equal employment opportunities to all individuals. We strive to create a workplace where employees are treated with respect and have the chance to succeed. All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status, or any other characteristic protected by federal, state, or local laws. See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link. Pay Transparency Zscaler complies with all applicable federal, state, and local pay transparency rules. Zscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support.

Apply Now:

As stewards of the Polkadot and Substrate ecosystem, Parity is laying the foundation for a better web. We believe in a decentralised web that respects the freedom and data of individuals and empowers developers to create better services. Our vision is to create a world based on truthful, rather than trustful, interactions.

Parity is one of the world's most experienced core blockchain infrastructure companies, having built and pioneered some of the most advanced technologies in the blockchain sector.

With a remote-first, global team, Parity is building open-source technologies for developers and organisations to implement and build upon. Our Web3 tech stack includes Polkadot, Substrate, and Kusama.

People in our collective are:

• Highly motivated to contribute to Parity’s mission and be part of something bigger

• Excited to work on projects that are groundbreaking and complex

• Autonomous workers that self-initiate, but also collaborate well with others

• Taking maximum accountability and having minimum ego at work

• Comfortable with chaos and adapting to the ever-changing Web3 space

• Continuously educating themselves about Parity and the wider ecosystem

About the team

The DevEx team works across the entire Polkadot ecosystem to improve developer workflows, tooling, and documentation. We own the experience of developers—from first contact with a template, guide, or CLI, to advanced tooling used in production.

This is not a support role. You’ll build the tools you wish already existed. You’ll collaborate with core engineering, marketing, solutions, and the community. You’ll also attend hackathons, support builders, and help scale what’s possible in the ecosystem.

About the Position

• Design and implement CLI tools, templates, SDKs, and onboarding flows.

• Improve and maintain documentation and developer portals.

• Write code samples, example projects, integration demos (Rust, TypeScript, Solidity).

• Contribute to better CI/CD setups for devs building with Substrate and Polkadot SDK.

• Engage with developer teams, answer deep technical questions, gather feedback.

• Work cross-functionally with engineering and product teams.

• Participate in events and hackathons, acting as an ambassador for great DevEx.

About You

• 3+ years of experience in Rust, 2+ years in TypeScript.

• Solidity experience — you’ve built and deployed smart contracts using Foundry, Hardhat, or Remix.

• Comfortable working with Linux, Docker, and CI/CD pipelines.

• A solid understanding of blockchain development, especially Substrate or EVM-based ecosystems.

• Experience writing technical documentation, tutorials, or guides.

• Confidence to speak with external developers — on Discord, Matrix, or in person.

• A bias toward automation, quality, and clarity.

• Enthusiasm for open source, hackathons, and building things developers love.

Bonus points for

• Experience with smart contracts.

• Contributions to open-source developer tools or frameworks.

• Involvement in blockchain communities, hackathons, or meetups.

About working for us

• Competitive remuneration packages based on iterative market research, including tokens (where legally possible)

• “Future of work” environment that’s remote-first and self-initiating with flexible hours

• Teammates that are genuinely excited about their impact and projects

• Access to the brightest minds in this space to learn about Web3 and develop your skills and knowledge while on the job

• Becoming part of the wider ecosystem (career and networking opportunities)

• Team and company-wide retreats

• Work laptop

• Opportunity to relocate to Germany or Portugal (with visa sponsorship)

Those joining our collective as an employee in Germany, Portugal, Switzerland and the U.K. also enjoy benefits such as health care, parental leave, PTO (28 days per year), local team events, yearly L&D budget, and language classes.

Parity is an Equal Opportunity Employer. We welcome diversity in our global team and care about everyone in our collective feeling included and welcome.

View our Applicant Notice to see how we use your data.

Is this position not quite your match? Browse our other open roles.

Apply Now:

As stewards of the Polkadot and Substrate ecosystem, Parity is laying the foundation for a better web. We believe in a decentralised web that respects the freedom and data of individuals and empowers developers to create better services. Our vision is to create a world based on truthful, rather than trustful, interactions.

Parity is one of the world's most experienced core blockchain infrastructure companies, having built and pioneered some of the most advanced technologies in the blockchain sector.

With a remote-first, global team, Parity is building open-source technologies for developers and organisations to implement and build upon. Our Web3 tech stack includes Polkadot, Substrate, and Kusama.

People in our collective are:

• Highly motivated to contribute to Parity’s mission and be part of something bigger

• Excited to work on projects that are groundbreaking and complex

• Autonomous workers that self-initiate, but also collaborate well with others

• Taking maximum accountability and having minimum ego at work

• Comfortable with chaos and adapting to the ever-changing Web3 space

• Continuously educating themselves about Parity and the wider ecosystem

About the team:

The DevEx team works across the entire Polkadot ecosystem to improve developer workflows, tooling, and documentation. We own the experience of developers—from first contact with a template, guide, or CLI, to advanced tooling used in production.

This is not a support role. You’ll build the tools you wish already existed. You’ll collaborate with core engineering, marketing, solutions, and the community. You’ll also attend hackathons, support builders, and help scale what’s possible in the ecosystem.

About the Position

We're looking for a Developer Experience Manager to lead and scale the efforts that make building on our ecosystem delightful for developers. This role is part player, part coach, balancing hands-on contributions with strategic direction, internal coordination, and developer advocacy. You’ll work closely with engineering, product, and leadership to improve tooling, documentation, and support for teams building with Substrate and the Polkadot SDK.

• Own and evolve our DevEx strategy across SDKs, CLIs, onboarding, and developer tooling.

• Prioritize and drive improvements to documentation, developer portals, and support flows.

• Collaborate with internal teams to identify pain points and streamline dev workflows.

• Represent developer needs in roadmap discussions and influence cross-functional planning.

• Guide technical writers, engineers, and advocates to produce high-quality samples, demos, and content.

• Lead feedback loops with internal and external developers to continuously improve the experience.

• Participate in community events and champion best practices for developer success.

About You

• 8+ years of experience in software engineering, including 2+ years in developer tooling or DevEx roles.

• Proficient in Rust and TypeScript, with a strong understanding of the smart contract landscape (e.g., Solidity + Foundry/Hardhat).

• Strong communicator and collaborator; experienced in working across product, engineering, and leadership teams.

• Comfortable running internal discovery efforts and aligning technical direction with business goals.

• Deep understanding of developer workflows  from onboarding to CI/CD to debugging.

• Experienced in writing and reviewing documentation, tutorials, or onboarding flows.

• Passion for supporting developers, both internally and externally.

Bonus points for

• Experience managing or mentoring DevEx or DevRel teams.

• Contributions to open-source developer tools or frameworks.

• Participation in hackathons, community programs, or educational initiatives.

About working for us

• Competitive remuneration packages based on iterative market research, including tokens (where legally possible)

• “Future of work” environment that’s remote-first and self-initiating with flexible hours

• Teammates that are genuinely excited about their impact and projects

• Access to the brightest minds in this space to learn about Web3 and develop your skills and knowledge while on the job

• Becoming part of the wider ecosystem (career and networking opportunities)

• Team and company-wide retreats

• Work laptop

• Opportunity to relocate to Germany or Portugal (with visa sponsorship)

Those joining our collective as an employee in Germany, Portugal, Switzerland and the U.K. also enjoy benefits such as health care, parental leave, PTO (28 days per year), local team events, yearly L&D budget, and language classes.

Parity is an Equal Opportunity Employer. We welcome diversity in our global team and care about everyone in our collective feeling included and welcome.

View our Applicant Notice to see how we use your data.

Is this position not quite your match? Browse our other open roles.

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.Senior Trading Systems Developer – Electronic Trading (Java/Rust) Location: [Insert location or “Remote”] | Team: Trading Technology | Type: Full-Time About FalconX FalconX is a digital asset brokerage and trading platform that connects institutional investors to the global crypto markets. We’re bridging the gap between traditional finance and digital assets through world-class infrastructure, high-performance trading systems, and an unwavering focus on reliability, scale, and innovation. As a market leader serving hedge funds, asset managers, and financial institutions, we are building a next-generation platform for high- and low-touch trading workflows across spot, derivatives, and structured products. The Role We’re looking for a Senior Trading Systems Developer with strong experience in Java and Rust to architect and build our next-generation Order Management System (OMS) and electronic trading execution platform. This platform will be central to supporting complex electronic trading workflows, such as market making and internalizing flow spanning high- and low-touch desks. You’ll be designing and developing scalable, low-latency components that are resilient under heavy load and tightly integrated with our execution stack and internal trading infrastructure. What You’ll Do

Design and implement a high-performance OMS for institutional trading workflow and EMS for electronic trading strategies and internalization engines. Lead the development of core order lifecycle components: order entry, modification, routing, risk checks, and state management. Build scalable services using Java and Rust, optimized for latency and throughput. Collaborate with strategy developers, product managers, and infrastructure teams to deliver flexible and extensible trading systems. Ensure system resilience, observability, and recovery in distributed, high-availability environments. Integrate with external market venues and internal trading strategies using WebSocket, REST, and FIX APIs. Drive code quality, testability, and production readiness through CI/CD, monitoring, and alerting best practices.

What We’re Looking For

5+ years of experience designing and building distributed trading systems. Expertise in Java (11+) and Rust for performance-critical systems. C++ a plus. Experience building or significantly contributing to an Order Management System (OMS) or Execution Management System (EMS). Solid understanding of order state transitions, event-driven architecture, and low-latency system design. Experience with WebSocket, REST, FIX, and OpenSSL at the protocol level. Knowledge of market structure, trading workflows (high- and low-touch), market making, and electronic trading best practices. Experience with high-performance messaging frameworks (e.g., Aeron, Chronicle, ZeroMQ, Kafka). Strong computer science fundamentals in data structures, algorithms, concurrency, and memory management. Familiarity with cloud-native environments, performance tuning, and system observability.

Bonus Points

Prior experience in crypto markets or electronic trading in traditional finance. Experience integrating OMS with strategy containers, risk engines, or smart order routers. Knowledge of FIX protocol nuances and connectivity to major exchanges. Exposure to container orchestration, service mesh, or hybrid deployment architectures.

The base pay for this role is expected to be between $179,000 and $242,000  in the New York City Area. This expected base pay range is based on information at the time this post was generated. This role will also be eligible for other forms of compensation such as a performance linked bonus, equity, and a competitive benefits package. Actual compensation for a successful candidate will be determined based on a number of factors such as location, skillset, experience, qualifications and the level at which the candidate is hired.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.

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About Symbiotic

At Symbiotic, we are building a permissionless shared security primitive that empowers network builders to shape and personalise their unique restaking implementation. Our goal is to minimise risks while maximising freedom for all you wonderful builders of crypto infrastructure networks. We have a robust developer-centric proposition and we can’t wait to share it with everyone.

You can find more information about what we’re building and how we’re doing it in our docs.

Our People

We’re a tight-knit team of experienced individuals at the forefront of crypto infrastructure. Our backgrounds range from security auditing and smart contract development to node operation, and we’re supported by Paradigm and CyberFund.

We’re on the hunt for talented professionals to join our mission and strengthen our awesome team.

The Role

We are seeking a Senior Smart Contract Engineer to work on our existing smart contract codebase, including core contracts, core extensions, and middleware SDK, as well as develop new upcoming modules.

What You’ll Do

• Work at the intersection of blockchain protocols and smart contracts, contributing to the design and development of EVM-based systems
• Write, optimize, and audit smart contracts in Solidity, with a focus on performance, clarity, and security
• Build and experiment with staking, DeFi, and other protocol-level primitives
• Leverage tools like Foundry and Hardhat for development, testing, and deployment
• Conduct and support security audits, addressing vulnerabilities and integrating best practices
• Collaborate closely with protocol engineers to support integrations across L1 and L2 chains
• Work with web3 libraries like ethers.js, viem, and web3.py for off-chain contract interactions
• Occasionally contribute to related tooling and scripting in Python and TypeScript

Who You Are

• Strong understanding of Ethereum L1/L2 architecture and PoS mechanisms
• Familiar with blockchain primitives such as consensus algorithms and cryptography
• Deep knowledge of EVM internals: execution flow, memory/storage models, gas mechanics, and precompiles
• Expert in Solidity, with exposure to Yul, Vyper, or Huff (a plus)
• Solid grasp of DeFi concepts: DEXes, lending protocols, stablecoins, and staking mechanisms
• Proficient with Foundry, Hardhat, and comfortable working with ethers.js, web3.js, viem, or web3.py
• Strong security mindset, familiar with common attack vectors and the auditing process
• Practical coding experience in Python and JavaScript/TypeScript

Nice to Have

• Experience in compilers development
• Experience in Rust, Go, C/C++
• Experience in protocol development such as L1, L2
• OP stack, Arbitrum knowledge
• Experience with ZK on EVM

Logos is a movement supporting the development of the decentralised web. Logos technologies lay the foundations for a freer internet upon which communities can evolve into network states. Each protocol in the Logos stack seeks to empower its users while upholding civil liberties and fundamental freedoms.   About Vac Vac builds public good protocols for the decentralized web. We do applied research based on which we build protocols, libraries and publications. Vac’s R&D Service Units are integral to supporting IFT projects by researching and developing base components and secure, unbiased protocols. With the IFT’s extensive use of the Nim ecosystem, the Vac Nim Service Unit focuses on the development and maintenance of Nim tooling and core libraries essential for IFT projects.The Nim unit works on critical tools in the Nim ecosystem, including the Nim compiler, Nimble (package manager), and nim-suggest, ensuring they are efficient, reliable, and up-to-date.The Nim unit further plans to maintain core libraries developed by IFT, such as Chronos.The mandate of the Nim unit also includes providing support to IFT projects regarding the use of Nim, identifying and addressing specific project needs and demands related to the Nim ecosystem. The role We’re looking for a skilled Nim developer to help drive the development and maintenance of Nimble, the Nim language server, and core Nim libraries across a range of IFT projects.In this role, you’ll work closely with project teams to consolidate, report, and resolve Nim-related issues and bugs, while also contributing to the ongoing improvement of developer tooling and the Nim ecosystem.The ideal candidate has strong experience with Nim, a solid grasp of language tooling and core programming concepts, and enjoys collaborating across teams to deliver robust solutions.If you’re passionate about open-source development, enjoy tackling complex technical challenges, and want to help shape the future of Nim at IFT, we’d love to hear from you. Key responsibilities

Contribute to the ongoing development and maintenance of Nimble, the official package manager for Nim, ensuring robust dependency management and a smooth developer experience. Address feature requests, resolve bugs, and improve documentation for Nimble to support the Nim ecosystem. Develop, maintain, and extend the Nim language server to improve IDE integration, code completion, error diagnostics, and overall tooling for Nim developers. Help maintain and evolve Nim core libraries. Collaborate with users and contributors to identify and implement enhancements that streamline the developer workflow Monitor, collect, and consolidate Nim-related issues and bugs arising in various IFT projects, and either report or directly address and resolve these issues as appropriate. Act as a liaison between IFT project teams and the Nim core development community, ensuring that feedback and requirements are clearly communicated and tracked.

You ideally will have

Proficiency in Nim programming language, with hands-on experience developing and maintaining Nim projects. Experience with C, C++, Rust, or similar, especially in systems or embedded programming contexts. Solid understanding of data structures and algorithms. Experience with concepts such as parsing, lexing, and semantic analysis, especially as they relate to compilers or language tooling. Familiarity with Nim’s standard library and ecosystem, including asynchronous programming, networking, and multi-threaded programming. Experience maintaining or contributing to package managers or similar developer tooling (e.g., Nimble). Understanding of language server protocols and experience working with or developing language servers. Proficiency in Git. Strong debugging and testing skills, with the ability to identify, report, and resolve issues across multiple projects. Effective communication skills for collaborating across teams and reporting on bugs and issues. Problem-solving ability and attention to detail

Bonus points

Experience working for an open-source organization. Knowledge of type theory and programming language foundations. Experience with peer-to-peer technologies, blockchain, or cryptography. Background in IDE tooling, language tooling, or developer experience improvements

Hiring process

Interview with our POps team Interview with team member from the Vac team Pair programming with team member from the Vac Nim unit Interview with Vac team lead

Compensation The expected compensation range for this role is $100,000 - $150,000 USD annually (negotiable, dependent on how we assess your skills and experience throughout our interview process). We are happy to pay in any mix of fiat/crypto.

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DMarket, recently acquired by Mythical Games, makes the secure purchase and trade of virtual items possible through our blockchain-enabled marketplace. Mythical Games is a Venture-backed game technology company powering the next generation of players, games, and studios.  Our goal is to launch exceptional video games that leverage distributed ledger tech while also providing a platform that will allow other game developers to do the same. At Mythical Games, we are proud of our ‘People First’ culture. We believe that it takes great people and culture to make great products.  By treating each other with empathy and respect, we can live fulfilling lives outside of our jobs while also creating exceptional work.This role at Mythical Games presents an opportunity for a Senior Rust Developer to take their career to the next level by joining the most exciting company at the intersection of Gaming, E-commerce, and Blockchain. Responsibilities:

Developing and supporting one or several services of the platform; Writing efficient, scalable, and reusable code; Bugs fixing; Reviewing and building architecture of the high-load product.

Requirements and skills:

4+ years of Backend development experience; 2+ years of experience in blockchain industry; 3+ years of experience with Rust programming language - advanced type system knowledge, macros, build scripts, targets; Experience with Substrate will be a huge advantage; Work experience with Kafka, Redis, MongoDB, CockroachDB(PostgreSQL); Experience in the development and successful launch of high-load projects; Experience in performance-oriented programming - data structures, caches, profiling; Experience with microservice architecture, service discovery; Understanding of fundamental design principles behind a scalable application; Understanding of fundamental designs of OOP, SOLID; Habits in writing unit/integration tests; Experience with Docker, Kubernetes; Ability to deal with substandard issues.

Nice to Have:

Interest in the gaming industry; Experience with Golang.

Location: Ukraine; Remote Work Hiring process: ✅Intro call with a Recruiter → ✅Technical Interview → ✅Final Interview → ✅Reference Check → ✅Offer We offer:

Team of like-minded professionals who understand your game passion; Work in an international product company - Mythical Games is the resident of Diia City; Competitive financial reward; Health care starting on your first working day; 22 paid vacation days, paid sick leaves and other personal days in accordance with the company's internal policies; Flexible working hours; Referral bonuses; Financial support and PTO in case of special occasions governed by the internal policies of the company. Our team values diversity and believes that it strengthens our games, products, and communities.  We strongly encourage POC, folks with disabilities, those belonging to the LGBTQIA+ communities, and people across all gender to apply.  If you need assistance with accommodations due to a disability, please reach out to email. We’ll be with you as soon as possible; our goal is to ensure an accessible and equitable interview process.

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About Zscaler Serving thousands of enterprise customers around the world including 40% of Fortune 500 companies, Zscaler (NASDAQ: ZS) was founded in 2007 with a mission to make the cloud a safe place to do business and a more enjoyable experience for enterprise users. As the operator of the world’s largest security cloud, Zscaler accelerates digital transformation so enterprises can be more agile, efficient, resilient, and secure. The pioneering, AI-powered Zscaler Zero Trust Exchange™ platform, which is found in our SASE and SSE offerings, protects thousands of enterprise customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Named a Best Workplace in Technology by Fortune and others, Zscaler fosters an inclusive and supportive culture that is home to some of the brightest minds in the industry. If you thrive in an environment that is fast-paced and collaborative, and you are passionate about building and innovating for the greater good, come make your next move with Zscaler. 

Our Engineering team built the world’s largest cloud security platform from the ground up, and we keep building. With more than 100 patents and big plans for enhancing services and increasing our global footprint, the team has made us and our multitenant architecture today's cloud security leader, with more than 15 million users in 185 countries. Bring your vision and passion to our team of cloud architects, software engineers, security experts, and more who are enabling organizations worldwide to harness speed and agility with a cloud-first strategy.

We are looking for an experienced Software Engineer to join our Cloud Browser Isolation/ Data Path Team. Reporting to the Senior Manager, Software Development Engineering, based in Madrid, you will be working remotely and you'll be responsible for:

Owning the definition, design, implementation, testing, delivery, monitoring, and reliability of multiple core components to ensure optimal browser streaming experiences for customers. Collaborating with stakeholders to analyze requirements and develop scalable, secure, and extensible technical solutions for cloud applications. Writing high-quality, testable, maintainable, and secure code, while integrating appropriate tests into CI/CD pipelines for reliable deployments. Fostering team growth through mentoring and knowledge sharing, maintaining a focus on continuous learning and improvement. Taking full ownership of deployed services, including on-call responsibilities, to ensure reliability and minimize production incidents.

What We Are Looking For (Minimum Qualifications):

6+ years of professional experience in software engineering, with at least 3 years dedicated to developing applications for Linux and cloud-based, high-traffic systems. Strong coding skills in C++. API & HTTP Knowledge: In-depth knowledge of RESTful APIs with a solid understanding of the HTTP protocol and request/response lifecycle. Familiarity with technologies such as gRPC or WebSockets. Strong grasp of system design principles, programming fundamentals, and experience with microservice-based and distributed architectures.

What Will Make You Stand Out (Preferred Qualifications):

Proficiency in computer graphics libraries (e.g., OpenGL, Vulkan), GPU driver development, Chromium rendering, browser engines, and modern web technologies such as WebAudio, WebGL, or WebAssembly. Expertise in media streaming technologies, low-level networking protocols (TCP, UDP), containerization tools (Docker, Kubernetes), and strong coding skills in Rust. Familiarity with automation tools for code quality, testing, and CI/CD pipelines to optimize development and deployment processes.

LI-MM8#LI-REMOTEAt Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with. We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging. Join us in our mission to make doing business seamless and secure.

Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including:

Various health plans Time off plans for vacation and sick time Parental leave options Retirement options Education reimbursement In-office perks, and more!

By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines. Zscaler is committed to providing equal employment opportunities to all individuals. We strive to create a workplace where employees are treated with respect and have the chance to succeed. All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status, or any other characteristic protected by federal, state, or local laws. See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link. Pay Transparency Zscaler complies with all applicable federal, state, and local pay transparency rules. Zscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support.

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