Burhani Media Solutions LLC is seeking a highly skilled Full Stack Blockchain Developer to join our team. The ideal candidate will have expertise in developing and deploying smart contracts, decentralized applications (dApps), and full-stack blockchain solutions. If you have a strong background in blockchain development, smart contract programming, and full-stack web development, we want to hear from you!

• Design, develop, and deploy secure smart contracts using Solidity or Rust.
• Build and integrate decentralized applications (dApps) on blockchain platforms like Ethereum, Binance Smart Chain, or others.
• Develop and maintain backend services using Node.js, Python, or PHP.
• Create responsive and dynamic frontend interfaces using React, Next.js, Vue.js, or Angular.
• Work with Web3.js, Ethers.js, or other blockchain libraries for blockchain interactions.
• Implement blockchain security best practices to ensure smart contract integrity and protect against vulnerabilities.
• Optimize gas fees, transaction costs, and blockchain performance.
• Collaborate with the design and product teams to deliver seamless user experiences.
• Conduct code reviews, testing, and debugging to ensure high-quality production-ready code.

• Proven experience as a Full Stack Blockchain Developer.
• Strong proficiency in Solidity, Rust, or other smart contract languages.
• Hands-on experience with Ethereum, Polygon, Binance Smart Chain (BSC), or other blockchain networks.
• Proficiency in backend development (Node.js, Python, or PHP with Laravel).
• Strong knowledge of frontend frameworks like React.js, Next.js, Vue.js, or Angular.
• Experience with Web3.js, Ethers.js, or similar libraries.
• Familiarity with IPFS, The Graph, or Layer 2 solutions is a plus.
• Understanding of blockchain security best practices (reentrancy, front-running, etc.).
• Experience with smart contract audits is a plus.
• Strong problem-solving and communication skills.

• Prior experience working with DeFi, NFTs, or GameFi projects.
• Familiarity with Docker, Kubernetes, or cloud infrastructure.
• Experience with Hyperledger, Cosmos, or Polkadot ecosystems.

• Hourly rate: $25 - $40, based on experience and expertise.
• Flexible work hours.
• Opportunity to work on cutting-edge blockchain projects.

If you’re passionate about blockchain development and want to be part of a dynamic team, apply now! 🚀

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Coinbase is seeking experienced backend engineers to join our team to build out the next generation of crypto-forward products and features. You will solve unique, large scale, highly complex technical problems, bridging the constraints posed by web-scale applications and blockchain technology. You will help build the next generation of systems to make cryptocurrency accessible to everyone across the globe, operating real-time applications with high frequency, low latency updates, and managing the most secure infrastructure running in the cloud.

The Growth organization drives Coinbase’s mission of bringing the world onchain. By building and leveraging growth tools across multiple avenues, including referral and incentives programs, creating a world-class notifications system, building a dynamic, engaging, and accessible logged-out web experience, and optimizing our new user onboarding flow, we ensure that Coinbase is the easiest, safest, and fastest way to buy, hold, and trade Crypto assets, and ensure our new users are set up for success from their first interaction.

What you'll be doing:

• Build and run experiments to power the growth of Coinbase’s retail products.
• Design scalable systems to solve novel problems with modern cloud technology and industry best practices.
• Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers.

What we look for in you:

• You have at least 2+ years of experience in software engineering.
• You’ve designed, built, scaled and maintained production services, and know how to compose a service oriented architecture.
• You write high quality, well tested code to meet the needs of your customers.
• You’re passionate about building an open financial system that brings the world together.

Nice to haves:

• You have experience launching new products from 0 to 1
• Experience with growth experiments or A/B testing frameworks.
• You have experience with Blockchain technology (such as Bitcoin, Ethereum etc..)
• You’ve worked with Golang, Ruby, Docker, Rails, Postgres, MongoDB or DynamoDB.
• You’ve built fintech, highly reliable and/or secure systems.
• Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GCBE04US

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

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Coinbase is seeking experienced frontend engineers to join our team to build out the next generation of crypto-forward products and features. You will help build the next generation of systems to make cryptocurrency accessible to everyone across the globe.

The Growth organization drives Coinbase’s mission of bringing the world onchain. By building and leveraging growth tools across multiple avenues, including referral and incentives programs, creating a world-class notifications system, building a dynamic, engaging, and accessible logged-out web experience, and optimizing our new user onboarding flow, we ensure that Coinbase is the easiest, safest, and fastest way to buy, hold, and trade Crypto assets, and ensure our new users are set up for success from their first interaction.

What you'll be doing:

• Build and run experiments to power the growth of Coinbase’s retail products.
• Build engaging, dynamic, and accessible user experiences that delight users while providing world-class ease of use and security.
• Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers.

What we look for in you:

• You have at least 2+ years of experience in developing web apps and shipping user-facing features with JavaScript and modern, component-based JS frameworks like React.
• You've developed and shipped user-facing features using component-based UI frameworks.
• You’re familiar with current trends and best practices in front-end architecture, including performance, security and usability.
• You’re familiar with product and design lifecycles, and collaborating closely with designers, engineers, and product managers.
• You write high quality, well tested code to meet the needs of your customers.

Nice to haves:

• You have experience launching new products from 0 to 1
• Experience with growth experiments or A/B testing frameworks.
• You've worked on front-end teams in the finance or security space
• You have at least 1 year of experience in developing React Native mobile apps or helped move existing native apps to React Native
• Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GCFE04US

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Tether is looking to hire a Senior QA Engineer to join their team. This is a full-time position that can be done remotely anywhere in the United Kingdom.

Tether - Bringing real world currency to the blockchain.

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=nil; Foundation has been at the forefront of Ethereum scalability solutions since 2018. With a mission to overcome the Ethereum scalability challenge, our team is dedicated to launching our own L2 solution — =nil; zkSharding, a zkRollup that securely scales Ethereum empowering web3 developers to build scalable, secure, and composable applications.

Our architecture supports parallel transaction processing across multiple execution shards, each validated by zero-knowledge proofs (ZKPs) and EVM opcode compatibility. Interoperability among these shards is seamlessly maintained through a native cross-shard communication protocol, enabling efficient and secure interactions within the network.

• Integration: Build and integrate tools like explorers, wallets, plugins, and extensions, ensuring a seamless user experience with =nil;
• Decentralized Application Development: Architect and develop the first dApps on top of =nil;, utilizing sharded architecture and multi-currency features. This involves exploring innovative project ideas or adapting existing dApps like Uniswap V2 to the =nil; ecosystem, pushing the boundaries of decentralized technology

Responsibilities

• Work on internal integrations to support =nil;, such as developing tools like the hardhat-plugin, block explorer, in-browser IDE, Block Indexer, and more. =nil; protocol is written in Go, and most integrations utilize TypeScript. Examples of existing integrations include:
  - CLI: Command-line interface for interacting with =nil; (written in Go)
  - Hardhat-plugin: Adapts requests and responses to match =nil; RPC and unique features (TypeScript)
  - Block Explorer: A tool for viewing block and message data (TypeScript)

• Develop and Design the first cross-shard dApps on top of =nil;, leveraging the sharding and multi-currency features. Examples include:
  - Adapting Uniswap V2 to =nil; by adding multi-currency support and modifying the architecture to distribute load across multiple shards.
  - Designing the architecture for an orderbook DEXto operate efficiently on a sharded blockchain.

Qualifications

• Strong engineering background with the ability to adapt to various programming languages and tech stacks as required by different projects (experience with Go, TypeScript, or Solidity is a plus)
• Willingness to learn and work with Web3 protocols and blockchain technologies, even if prior experience is limited
• Ability to design and implement scalable and secure systems in a decentralized environment
• Independence and productivity, with the ability to take ownership of projects from inception to completion
• Proficiency in English (B2+), both written and spoken, to effectively collaborate with international teams

Benefits

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At IMC, technology is not a department; it’s at the heart of everything we do. Developed in-house, our innovative software makes millions of trading decisions daily, and we win bymaking better and faster decisions than our competition.

IMC’s Zug-based C++ Crypto Execution development team works on software that sits directly in the latency-critical loop of our technology stack and touches every part of our organisation. From ensuring our connectivity to the market and handling massive amounts of data, to implementing complex trading algorithms and integrating advanced hardware solutions.

Your Core Responsibilities:

As a software engineer, you’ll work in multidisciplinary teams alongside other engineers as well as traders, researchers, and quants to deliver challenging projects, while taking ownership of the end-to-end product development – from requirements gathering to production. You’ll write reliable, high-performance software while balancing time to production with quality and testability. Advanced automated testing and daily deployments will allow you to achieve agile and incremental benefits. Within a complex landscape of varying systems and technologies, you’ll be constantly challenged to consider trade-offs between latency, throughput, simplicity, scalability and maintainability.

• Coding, developing, testing, deploying and maintaining applications and automations for Trading Teams and/or Hardware Developrment and Execution Teams.
• Working through internal client requests. Gathering details, requirements and feedback from a range of internal stakeholders in order to implement creative automation solutions using innovative coding practices.

Your Skills and Experience:

• Strong programming skills in C++. Experience in the latest versions of C++ is highly desirable
• Familiarity with Python – preferred
• Familiarity with Docker and Kubernetes
• Comfortable in Linux environments
• Experience as a team lead and/or mentoring more junior engieers
• Experience gathering business requirements, communicating with key stakeholders and delivering solutions quickly
• The ability to work on greenfield projects under minimal supervision and to take full ownership of the applications you build
• A high degree of flexibility and adaptability: willing and able to deal with uncertainty and ambiguity in a rapidly evolving environment
• Strong troubleshooting and diagnostic skills; ability to solve problems creatively and proactively
• Prior knowledge of trading / capital markets isnotrequired. Curiosity and a willingness to learn is.

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The Consumer Product Group builds the sustainable engines of growth for Coinbase that bring open financial services to 1 billion people with products like Advanced Trading, Staking, and Coinbase One. Consumer product engineers strive to make the Coinbase retail app the easiest-to-use, fastest, and safest experience for everyone across the globe to access and participate in the cryptoeconomy.

Our team focuses on accelerating the development of high quality products by enabling validation of product behaviors at scale through automated test infrastructure. We are entirely engineering driven, identifying opportunities to build innovative tools and infrastructure to enable developers to test high-fidelity production behaviors during development to enable catching and fixing bugs as early in the development cycle as possible. We are seeking an experienced and dynamic Senior Frontend Software Engineer to join our Consumer Engineering Test Infrastructure team at Coinbase.

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

Test Infrastructure and Architecture

• Develop and implement automated testing infrastructure to scale the validation of product behaviors on Mobile and Web surfaces
• Evaluate and introduce new testing tools and methodologies to improve efficiency
• Oversee the creation and execution of test plans, test cases, and test scripts, to inform automation opportunities
• Integrate automated tests into CI/CD pipelines and streamline the testing process within the development lifecycle

Leadership and stakeholder management

• Mentor junior engineers, fostering a culture of continuous improvement and innovation
• Partner deeply with Consumer product teams and align on outcomes
• Define testing best-practices and drive culture change within product teams to adopt them
• Provide regular status updates to stakeholders on progress towards quality outcomes

Metrics and Insights

• Ensure thorough coverage across functional, integration, performance, and security testing
• Understand quality gaps, develop insights and drive best practices for testing, defect tracking and resolution

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

• You have at least 2 years of Frontend experience in software engineering and at least 4 years of experience in developing web apps and shipping user-facing features with JavaScript and modern, component-based JS frameworks like React.
• You have a good knowledge of testing tools, methodologies and best-practices in the Frontend space, having used and developed them for Mobile and Web products.
• You've developed and shipped user-facing features using component-based UI frameworks.
• You’re familiar with current trends and best practices in front-end architecture, including performance, security and usability.
• You write high quality, well tested code to meet the needs of your customers.

Nice to have:

• Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

JOB# GCFET04US

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Qube Research & Technologies (QRT) is a global quantitative and systematic investment manager, operating in all liquid asset classes across the world. We are a technology and data driven group implementing a scientific approach to investing. Combining data, research, technology, and trading expertise has shaped our collaborative mindset, which enables us to solve the most complex challenges. QRT’s culture of innovation continuously drives our ambition to deliver high quality returns for our investors.

We are looking for a senior low level C++ developer with expertise in low latency development, ideally in cryptocurrency markets or HFT.

Your future role within QRT

• Pivotal role in enhancing QRT’s market access systems to meet the demands of low-latency and high-frequency trading in cryptocurrency markets.
• Work closely with traders and researchers to understand the unique requirements of cryptocurrency trading and provide timely feedback and innovative solutions.
• Collaborate with Linux administrators and network engineers to ensure optimal system setup and deployment, leveraging cloud infrastructure and modern devops practices.
• Part of the QRT Market Access team, enhancing and maintaining systems that cover global markets, with a special focus on the cryptocurrency ecosystem.

Your present skillset

• Expert skills in C++ and Linux platforms.
• Proven experience in low-latency optimization and tuning techniques.
• Experience with market access systems in cryptocurrency markets.
• Familiarity with cloud environments and modern CI/CD pipelines.
• Good knowledge of crypto products is a plus.
• Strong communication and interpersonal skills are desirable.

QRT is an equal opportunity employer. We welcome diversity as essential to our success. QRT empowers employees to work openly and respectfully to achieve collective success. In addition to professional achievement, we are offering initiatives and programs to enable employees achieve a healthy work-life balance.

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Echo Base is a private holding company pursuing special situation control investments in the digital assets space. Its global crypto team possesses deep experience in both the scaling of new ventures and the restructuring of complex assets. Echo Base seeks to leverage operational and technical synergies across its portfolio companies to drive innovation. Est. 2025.

The Front-end Developer is responsible for leading the design and development of user-facing applications that support Echo Base’s global P2P marketplace. This role requires deep expertise in frontend technologies, experience managing small but high-performing teams, and a hands-on approach to development. You’ll work closely with product managers, backend developers, mobile teams, and blockchain engineers to deliver high-quality, scalable, and secure web solutions.

What will you do:

• Lead the development of web-based applications using React, Typescript, and related technologies.
• Collaborate with cross-functional teams to define, design, and deliver new features aligned with the product roadmap.
• Implement best practices for frontend development, including code reviews, testing, and performance optimization.
• Mentor and guide team members, fostering a collaborative and innovative environment.
• Ensure seamless integration with backend APIs and other services, maintaining high standards for user experience.
• Manage technical debt while prioritizing scalable architecture and maintainable code.
• Build and maintain reusable components, libraries, and patterns to accelerate development across teams.
• Debug and resolve complex technical issues, ensuring the stability and performance of Echo Base’s platform.
• Collaborate with QA and DevOps teams to streamline CI/CD pipelines and improve testing coverage.
• Work with UX/UI designers to deliver pixel-perfect interfaces that meet design requirements.

Who you are:

• A hands-on leader who thrives in fast-paced environments.
• An advocate for clean code, modular design, and performance optimization.
• A collaborative communicator who enjoys solving complex challenges with cross-functional teams.
• Passionate about cryptocurrency, fintech, and the power of peer-to-peer technology.

What we are looking for:

• 5+ years of frontend development experience, including team leadership.
• Proven experience with React, Typescript, JavaScript ES6+, and state management libraries (e.g., Redux, MobX).
• Experience with integration and development of RESTful APIs.
• Expertise in optimizing frontend performance and debugging complex web applications.
• Experience with Git and CI/CD pipelines.
• Knowledge of deployment strategies and tools like GitLab CI.
• Familiarity with modern testing frameworks (e.g., Jest, Cypress).
• A solid understanding of testing strategies for frontend code.

Recommended Skills:

• Experience with mobile-friendly web development and responsive design.
• Knowledge of Web3.js or similar libraries for blockchain integration.
• Familiarity with analytics and user behavior tracking tools.
• Experience working in fintech or cryptocurrency platforms.

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Intetics Inc., a leading American technology company specializing in custom software development and digital solutions, is looking for a Backend Developer to help build a cutting-edge blockchain DEX platform.

Responsibilities:

• Develop and maintain the backend for a decentralized exchange (DEX) platform
• Write and optimize smart contracts for Ethereum, Polygon, or BNB (any EVM-based blockchain)
• Ensure high performance, security, and scalability of blockchain-based applications
• Collaborate with frontend and blockchain engineers

• Experience with Solidity, Rust, or Golang
• Hands-on experience with EVM-based blockchains (Ethereum, Polygon, BNB, etc.)
• Understanding of DeFi protocols and DEX mechanisms
• Strong problem-solving and analytical skills

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EAA Integrations specializes in automation, building robust test automation frameworks to streamline system testing, enhance data integration, and improve business process efficiency. Our team develops reusable automation solutions along with integrations that empower teams to quickly and effectively validate complex systems, ensuring high-quality integrations and reliable performance.

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

• Automation Engineer: Design, develop, maintain, and enhance the test automation platforms strategy, ensuring widespread adoption, usage, and thorough metrics tracking.
• Test Strategy: Develop comprehensive test strategies covering unit, functional (API/UI), and end-to-end testing across multiple business applications and IT systems.
• Test Development: Implement UI/API automated test scripts, focusing on unit, functional and integration testing of various enterprise applications, including but not limited to Salesforce, Netsuite, and AWS.
• Performance and Load Testing: Establish comprehensive load testing, performance testing, and regression testing strategies for enterprise applications.
• CI/CD Integration: Integrate automated tests into CI/CD pipelines to ensure continuous testing and validation across development and production environments.

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

• Bachelor's Degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• Experience: 1+ years of experience in software engineering, with expertise in test automation platforms and tools.
• Technical Skills:
• Familiarity with any Test Automation Frameworks like Selenium, UiPath, Sfops etc. for API and Functional testing.
• Skills:
• Strong programming skills in Python or JavaScript, or similar languages.
• Problem Solving: Proven track record of having a material impact on engineering velocity and product quality through automation-first testing approaches.
• Communication: Strong documentation skills and the ability to train and mentor other engineers on testing best practices.

Nice to haves:

• Proficiency in tools such as Playwright or UiPath for UI testing, Loader for load and performance testing APIs.
• Experience with continuous integration/continuous deployment (CI/CD) practices.

PID: 66054

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We are seeking an AI Prompt Engineer to play a pivotal role in shaping how AI interacts with users within our ecosystem. Your primary responsibility will be to design, refine, and optimize prompts that enhance the performance, accuracy, and contextual understanding of AI models aligned with our product vision.

In this role, you will work closely with our product and tech teams to understand user needs and develop custom-tailored prompts that drive engaging, insightful, and high-quality AI interactions. Your expertise will be essential in advancing our AI-powered NFT ecosystem, ensuring that our platform delivers dynamic, intelligent, and value-driven AI-generated experiences.

If you’re passionate about pushing the boundaries of Web3 and AI, we’d love to hear from you!

About Tiny SPL

Tiny SPL is a cutting-edge protocol designed to address Solana’s unique rent challenges through state compression, making the blockchain more affordable, inclusive, and efficient. Our innovative zkNFT standard drastically reduces data storage costs while enabling proof of ownership without incurring rent fees, which earned us first place at the ZK Compression sidetrack at the Solana Radar Hackathon and the support of top Solana thought leaders.

We also launched Tiny AI, an AI-powered no-code launchpad that turns ideas into fully fledged AI NFT ecosystems utilising our zkNFT standard. We are integrating AI into NFTs, creating non-fungible assets with agentic capabilities to build ecosystems that can interact, adapt, and evolve.

More about us.

Key Responsibilities

• Work collaboratively with our product development team to understand user needs and build context around AI language models
• Integrate prompts into our application, ensuring that they are cohesive with our product vision and design language
• Design, test, refine high-quality custom prompts to improve the user experience and increase engagement
• Test and debug prompts to ensure they are functioning correctly and conduct A/B testing on different prompt variations to improve accuracy and reduce hallucinations
• Continuously optimize and improve the prompts based on user feedback and usage data
• Research LLM jailbreaks, adversarial attacks, and prompt security to prevent manipulation in AI models for Web3
• Stay up-to-date with the latest developments in web3 and AI to inform prompt development and implementation e.g. ensuring AI agent chatbots are aligned with the latest developments

Key Qualifications

• Experience crafting and optimizing prompts for LLMs in production use cases.
• Strong understanding of AI models and prompt engineering techniques
• Ability to analyze AI outputs, debug failures, and implement improvements iteratively
• Fluent in English with strong communication skills
• Organized, adaptable, and able to thrive in a collaborative team setting
• Self starter with strong problem-solving skills and attention to detail
• Ability to work remotely, with a flexible schedule accommodating global time zones
• Ability to navigate ambiguity, adapt to change quickly, and thrive in a fast-paced setting
• (Bonus) Familiarity with Web3 and blockchain and has experience with on-chain AI implementations

WHO WE ARE: Zinnia is the leading technology platform for accelerating life and annuities growth. With innovative enterprise solutions and data insights, Zinnia simplifies the experience of buying, selling, and administering insurance products. All of which enables more people to protect their financial futures. Our success is driven by a commitment to three core values: be bold, team up, deliver value – and that we do. Zinnia has over $180 billion in assets under administration, serves 100+ carrier clients, 2500 distributors and partners, and over 2 million policyholders. WHO YOU ARE: Software Engineers play a key role in the design, development/configuration, unit testing, installation, and ongoing maintenance of our software platforms. Our Software Engineers work with stakeholders to develop solutions and/or products that fulfil the needs of our internal stakeholders and clients. Those solutions and/or products help us and our clients to be more efficient and provide better service to end customers. WHAT YOU’LL DO:   You will be responsible for developing, coding, and maintaining software modules/systems and required to modify existing software products or develop entirely new modules as per technical specifications in response to business requirements. WHAT YOU’LL NEED:  

Should have 5+ years experience in Microsoft Web Technologies (ASP.NET MVC, Dot Net Core) Demonstrable experience in C#, Entity Framework, JQuery. Ability to develop enterprise solutions following software designs. Effective communicator with both technical and non-technical audiences. Systematic problem-solving approach coupled with a strong sense of ownership. Ability to work as part of a cross-functional, global team. Experience in WebAPI, XML, JQuery/HTML/CSS. Experience with relational databases such as SQL Server SQL Server 2014/2019+

BONUS POINTS: 

Good to have working experience on enterprise-level applications/products. Experience working in the insurance industry is advantageous. Knowledge of React and TypeScript would have added advantage.

WHAT’S IN IT FOR YOU?   We’re looking for the best and brightest innovators in the industry to join our team. At Zinnia, you collaborate with smart, creative professionals who are dedicated to delivering cutting-edge technologies, deeper data insights, and enhanced services to transform how insurance is done. Visit our website at www.zinnia.com for more information. Apply by completing the online application on the careers section of our website.  We are an Equal Opportunity employer committed to a diverse workforce. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability.

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WHO WE ARE: Zinnia is the leading technology platform for accelerating life and annuities growth. With innovative enterprise solutions and data insights, Zinnia simplifies the experience of buying, selling, and administering insurance products. All of which enables more people to protect their financial futures. Our success is driven by a commitment to three core values: be bold, team up, deliver value – and that we do. Zinnia has over $180 billion in assets under administration, serves 100+ carrier clients, 2500 distributors and partners, and over 2 million policyholders. WHO YOU ARE: Senior Software Engineer plays a key role in the design, development/configuration, unit testing, installation, and ongoing maintenance of Zinnia software platforms. Works with stakeholders to develop solutions and/or products that fulfill the needs of Zinnia’s internal stakeholders and clients. Those solutions and/or products help Zinnia and it's clients to be more efficient and provide better service to end customers. SSE interacts directly with project managers and business stakeholders and may periodically interact directly with Zinnia’s clients. Will facilitate, Architect, and enable junior team members by acting as a mentor for soft skills and/or technical subject matter experts. WHAT YOU’LL DO:

Work as part of a global, cross-functional team to develop innovative software for Zinnia’s stakeholders. Contribute to projects by creating well-designed, customized, testable, and efficient code for Life & Annuity Exchange platforms. Assist our teams in providing ongoing support, troubleshooting, improvements, or custom enhancements to existing Life & Annuity Exchange platforms. Flexibility to support the challenging development and delivery needs of Zinnia Collaborate with our global teams, internal stakeholders, and customers. Act as a mentor and technology expert for team members and conduct technical reviews. Architect, Design, develop and validate various requirements for the Zinnia platforms Ability to work in a fast-paced environment, recognize and react to changing business needs and effectively prioritize tasks Must be self-motivated and able to work independently and in conjunction with team members and business units. Enthusiasm and flexibility to work on a variety of projects

WHAT YOU’LL NEED:

10-14 years of expertise in Microsoft .NET technologies with end to end project life cycle experience using Agile methodologies Architecting, designing, developing, and delivering tasks using C#/.Net, ASP.Net, MVC, Dot Net Core, Web API, Micro Services, utilizing Visual Studio IDE, SSRS, SOAP, XML, GitHub Understanding of advanced design patterns, API-first design, and SOLID principles Effective communication, interpersonal, and critical thinking skills. Ability to work as part of a cross-functional, global team. Fluent client communication, Issue management, deployment, and delivery support. Experience in WebAPI, XML, JQuery/HTML/CSS. Experience with relational databases such as SQL Server SQL Server 2014/2019+ Knowledge of cloud platforms i.e. AWS Team coordination, analytical skill, self-learning, Communication, Technical documentation, system analysis

Good to have:

Working experience on enterprise-level applications/products Working experience in React, TypeScript Insurance/financial services (Life and Annuity) industry knowledge Experience with Web-based software as a service (SaaS) application

WHAT’S IN IT FOR YOU? Zinnia offers excellent career progression and competitive compensation. We offer great benefits, including health/dental insurance, parental leave, profit sharing, PF, incentive/bonus opportunity, tuition reimbursement, and so much more. We’re looking for the best and brightest innovators in the industry to join our team. At Zinnia, you collaborate with smart, creative professionals who are dedicated to delivering cutting-edge technologies, deeper data insights, and enhanced services to transform how insurance is done. Visit our website at www.zinnia.com for more information. Apply by completing the online application on the careers section of our website. We are an Equal Opportunity employer committed to a diverse workforce. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability.

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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 member of the Stellar Labs team, you'll have the opportunity to push the boundaries of blockchain performance. We are tackling hard systems problems across the stack, including databases, secure runtimes, distributed systems, and consensus protocols. In this role, you will: 

Design and build scalable, high-performance systems. Work in a fast-paced, startup-like environment. Write clean, maintainable code with an emphasis on simplicity, testing, and benchmarking. Own core subsystems and help the team hit critical product milestones. Collaborate with the team on code review and design, and contribute to best practices. Author detailed technical feature and protocol (RFC) specifications. Contribute to open-source software

Qualifications:

Experience developing reliable and easy to understand software on a team. A track record of building and maintaining large systems in modern C++ or Rust. An understanding of low-level details and the ability to write high-performance code. Enthusiasm 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.

Nice to have: 

A BS, MS, or PhD in Computer Science or equivalent field. Experience in a computer systems research area such as computer networks, distributed systems, databases, or operating systems is especially encouraged. You have created or contributed to a project in the open source community.

We offer competitive pay with a base salary range for this position of $180,000 - $230,000 depending on job-related knowledge, skills, experience, and location. In addition, we offer token-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 dependants 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.

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Textile’s mission is to accelerate the exchange of information on the Internet.  We are a lean, fully remote team dedicated to a shared mission. Since our first ML product in 2018, we’ve consistently advanced the state of the art for the cryptographically secured distributed data foundations needed by an AI-driven web. We’re supported by USV, Multicoin, Blueyard, and other world-class investors as well as a thriving developer community. We value passion, integrity, and an innovative mindset. We look for rigorous thinkers who ship quickly, collaborate proactively, learn continuously, and contribute to a fast-paced and engaging remote workplace. If that resonates, join us! We strongly encourage applications from individuals who belong to groups historically underrepresented in technology.  The Opportunity As Developer Relations, you will shape the future of AI by helping developers build powerful multi-agent systems, combining your technical expertise with community leadership to drive the next evolution of AI applications. As the bridge between our developer community and product team, you'll have direct impact on both our platform's development and its adoption in the AI ecosystem, while establishing yourself as a thought leader in this rapidly evolving space. What You'll Achieve: Success in this role means delivering world-class design solutions that enhance the usability and effectiveness of our our product suite, in particular our Portal product. Within your first year, you will:

Build and nurture a thriving developer community around Recall through technical content, speaking engagements, and direct developer engagement. Drive adoption of Recall by creating compelling demos, tutorials, and integration examples that showcase multi-agent systems. Own our developer experience strategy, including documentation, SDKs, and getting-started materials. Establish and grow strategic partnerships with AI communities, developer tools companies, and influential technologists. Create and deliver workshops and technical presentations at conferences, meetups, and online events. Gather and synthesize developer feedback to influence our product roadmap and feature development. Develop and maintain sample applications and reference architectures that demonstrate best practices.

Skills You'll Need: You’re likely a great fit if you have:

Experience building and maintaining developer communities. 5+ years of software development experience, with strong proficiency in Python and/or Typescript and modern development tools. Deep understanding of AI/ML concepts, particularly in LLMs and multi-agent systems. Track record of creating technical content including blog posts, tutorials, and documentation. Experience speaking at technical conferences and delivering workshops. Strong communication skills with ability to explain complex technical concepts to diverse audiences. Familiarity with developer tools ecosystem and modern software development practices. Background in developer experience (DX) or technical evangelism preferred.

If you’re excited about designing the next generation of AI-powered products and thrive in fast-paced, experimental environments, we’d love to hear from you! 🚀   Bonus Points:

Familiarity with any part of our tech stack: onchain/web3, SQL, big data, NFTs/tokens, etc. Leadership in driving team objectives, balancing business needs with team dynamics, and personal development. A broader appreciation for the pioneers of computing and a personal investment in areas beyond technology.

At Textile, we believe in the power of diversity to foster innovation and creativity. We encourage candidates from all backgrounds to apply, especially those who share our vision of democratizing software customization. If you're passionate about this role but don't meet every single requirement, we still want to hear from you. We offer competitive compensation, equity, and benefits tailored to provide a comprehensive and fulfilling work-life balance. Learn more about us at @recallnet, https://recall.network/,  https://basin.textile.io/, https://textile.io, @textile, https://github.com/tablelandnetwork, https://tableland.xyz, and @tableland. Perks:

Competitive salary and benefits. Contribute to projects at the forefront of the web. Work with a company on a mission to have a positive impact. Work on a fully remote team. Work with/on a small, passionate team. An entrepreneurial opportunity where you can have oversized impacts. Opportunity to drive innovation and strategy. Location Textile is a fully remote company spanning GMT -8 to GMT +1 (North America, South America, Central Europe). While being small, we've found that it is helpful to have a high level of overlap as a team. Learn more about us at https://github.com/tablelandnetwork, https://tableland.xyz, @tableland__, and https://textile.io.

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Launchpad, a people-first technology company, is a leader in North America´s rapidly growing tech sector. Through two solutions, Launchpad supports its clients with digital transformation:

PaasportTM, our iPaaS solution, streamlines software integration and automates workflows. Nearshore Staff Augmentation, our managed IT staffing service, connects top IT talent across various geographical regions, bringing industry expertise to leading clients.

Based in Vancouver, Canada, our operational footprint spans across North and South America, with a second headquarters in Santiago, Chile. In 2023, our unwavering dedication to innovation garnered recognition as a Deloitte Technology Fast 50™ Program Company. Our clientele boasts industry leaders such as Walmart, GM, TIME Magazine, Salesforce, Tableau, Splunk, Bolt.com, Freedom House, and more. At Launchpad, we genuinely care about our people as individuals. If you are looking for a team that values growth, drive, and passion for your craft, if you’re seeking a place to achieve your goals and dreams with fairness and integrity, then we’d love to hear from you. About the RoleWe are looking for a highly proactive, independent, and experienced Senior Shopify Developer to join our team. This role requires someone who can take full ownership of Shopify development, working autonomously to build, optimize, and maintain our e-commerce platform. You will collaborate closely with the marketing and operations teams but will be the sole developer, so strong problem-solving skills and the ability to work with minimal supervision are essential.   Key Responsibilities

Develop, customize, and maintain Shopify themes and features using Liquid, HTML, CSS, and JavaScript. Optimize site performance and speed, implementing best practices for loading times and responsiveness. Integrate third-party tools for analytics, A/B testing, and marketing automation. Troubleshoot and resolve technical issues quickly and independently. Work closely with the UX Designer to ensure seamless design implementation. Implement and monitor A/B testing experiments to improve conversion rates. Maintain a well-structured and optimized Shopify backend for reliability and scalability. Potential to lead and expand a development team in the future.

  Skills & Experience Required

6+ years of Shopify development experience, with expertise in Shopify Liquid and front-end development. Strong understanding of Shopify’s ecosystem, APIs, and custom app integrations. Experience in performance optimization (reducing render-blocking resources, lazy loading, etc.). Proven ability to work autonomously and take full ownership of Shopify development. Strong debugging and troubleshooting skills. Familiarity with A/B testing, analytics tools, and data-driven decision-making. Advanced English proficiency (written and spoken) – clear communication is a must. Understanding of e-commerce KPIs and conversion rate optimization.

  Nice-to-Have

Experience working with Shopify Plus. Background in e-commerce marketing and CRO (Conversion Rate Optimization). Familiarity with headless Shopify or custom app development.

Why work for Launchpad?

100% remote People first culture Excellent compensation in US Dollars Hardware setup for working from home Work with global teams and prominent brands based in North America, Europe, and Asia Training allowances Personal time off (PTO) for vacations, study leave, personal time, etc. ...and more! At Launchpad, we genuinely care about our people as individuals. If you are looking for a team that values growth, drive, and passion for your craft, if you’re seeking a place to achieve your goals and dreams with fairness and integrity, then you are the future of Launchpad. Launchpad is committed to fostering a diverse and representative workforce and an inclusive work environment where all employees are respected and treated equally. Are you ready to elevate your career at Launchpad? We want to hear your story! Contact us today.  

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🚀 Join the Future of Commerce with Whatnot!  Whatnot is the largest livestream shopping platform in North America and Europe to buy, sell, and discover the things you love. We’re re-defining e-commerce by blending community, shopping, and entertainment into a community just for you. As a remote co-located team, we’re inspired by innovation and anchored in our values. With hubs in the US, UK, Ireland, Poland, and Germany, we’re building the future of online marketplaces—together. From fashion, beauty, and electronics to rare collectibles like trading cards, comic books, and even live plants, our live auctions have something for everyone. And we’re just getting started! As one of the fastest growing marketplaces, we’re looking for bold, forward-thinking problem solvers across all functional areas. Check out the latest Whatnot updates on our news and engineering blogs and join us as we enable anyone to turn their passion into a business, and bring people together through commerce. 💻 Role  Ads is a growing engineering team at Whatnot that is dedicated to building systems & features to help Sellers grow their business. As a software engineer on the Ads team, the most important qualities you'll need are making sound product decisions, navigating new domains seamlessly, taking extreme ownership, and shipping high-quality products fast. We always prioritize the highest impact features and ship them quickly. The software team has a lot of individual responsibility and many more freedoms, so we need to hire people we can trust. Your ability to put customers first, make good trade-offs and deliver impact is essential to us. In this role, you will…

Build highly scalable Ads system that handles all aspects of running an online advertising system and helps sellers differentiate themselves on Whatnot Focus on the web-based aspects of ad flows and the ad dashboard, with occasional backend work Maintain web apps, develop new features and potentially work around infrastructure. Understand our buyer and seller experiences and become an expert in helping them effectively scale their business through ads & monetization products

Team members in this role are required to be within commuting distance of our Kraków, Poland hub. 👋 You  Curious about who thrives at Whatnot? We’ve found that embodying a low ego, growth mindset, and high-impact drive goes a long way here.  As our next New Grad Engineer on the Ads team, you should have a graduation date between December 2024 and June 2025 plus:

Knowledge of multiple programming languages (we primarily use Python, Elixir, JavaScript - knowledge of these in particular not required) Previous internship experience Excellent product instincts. Thinks about users first and cares about building intuitive, high-impact products Can take a project from idea to launch, shipping features quickly while maintaining quality Enjoy taking ownership of projects and seeing them through from start to finish Learn new technologies quickly and is excited to grow in a fast-paced environment An excellent problem solver and don’t need to be told exactly what to do (Nice to have) Has exposure to ads systems, infrastructure, or international commerce

💛 EOE  Whatnot is proud to be an Equal Opportunity Employer. We value diversity, and we do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, parental status, disability status, or any other status protected by local law. We believe that our work is better and our company culture is improved when we encourage, support, and respect the different skills and experiences represented within our workforce.

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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 Software Engineer (Platform) Job Summary: As a Software Engineer in Platform Engineering, you will play a crucial role in building internal tools and contributing to platform development. This hybrid role combines elements of DevOps, Application Security (AppSec), and Architecture to streamline the development process and improve efficiency. Key Responsibilities: Library and Module Development: - Design and develop abstract libraries and modules to streamline software development processes. - Create reusable images and scaffolding tools to support microservice applications, allowing developers to focus on configuration rather than infrastructure setup. Performance and Efficiency Improvement: - Analyze existing software components to identify areas for performance enhancement using tools like [specify tools if applicable]. - Implement optimizations to improve the efficiency and scalability of software systems. Internal Tooling and Automation: - Develop internal tools that allow developers to deploy environments with simple commands. - Abstract out reusable components from the codebase, making them part of the platform for developers to use as needed. - Standardize common libraries such as logging, observability (tracing), and profiling. - Ensure seamless integration with CI/CD pipelines using tools like Jenkins and GitHub Actions. Module Maintenance and Support: - Maintain and update libraries and modules to meet evolving business needs. - Provide support and documentation for other teams to effectively utilize these resources. Testing and Quality Assurance: - Write comprehensive test cases to ensure the reliability and quality of developed libraries. - Collaborate with QA teams to implement automated testing strategies using frameworks like [specify frameworks if applicable]. Collaboration and Communication: - Work closely with Principal Engineers, architects, and cross-functional teams to understand their requirements and provide tailored solutions. - Gather feedback from developers to continuously improve the "developer experience." Continuous Learning and Improvement: - Stay updated with the latest trends and advancements in software engineering and platform technologies. - Propose and implement innovative solutions to enhance platform capabilities. Qualifications: - Bachelor's degree in Computer Science, Software Engineering, or a related field. - Proven experience as a Software Engineer with a focus on platform engineering. - Strong proficiency in Python, Go, and JavaScript programming languages. - Experience in developing and maintaining software libraries and modules. - Excellent problem-solving skills and attention to detail. - Ability to write clean, maintainable, and well-documented code. - Proficient in writing and executing test cases. Preferred Qualifications: - Experience with version control systems like Git. - Familiarity with CI/CD pipelines and DevOps practices. - Knowledge of containerization technologies such as Docker and Kubernetes. - Experience in working with cloud platforms (e.g., AWS, Google Cloud, Azure). - Understanding of Linux systems. 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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Noble is the premier asset issuance chain in the modular ecosystem. Noble solves a variety of critical pain points around native issuance for developers and issuers alike, including: security, liquidity, compliance, standardization, and neutrality. Noble’s long-term vision is to be a UX unlock for all stablecoin and RWA issuers.  Responsibilities As a Front-End Developer at Noble, you’ll play a pivotal role in crafting seamless and intuitive experiences for our users. Your focus will be on developing high-performance interfaces that simplify Noble’s user experience. You’ll be responsible for writing clean, maintainable code and contributing to new product development, as well as maintaining existing products. Reporting to the Sr. Front-End Developer, you’ll work closely to deliver a polished and efficient front-end. Strong communication is essential as you’ll work cross-functionally to align on best practices, share technical insights, and contribute to a streamlined development process.

Write clean, maintainable, and well-documented code while adhering to front-end best practices Work closely with the existing front-end team to ensure consistency across Noble codebases Implement and maintain unit and integration tests to ensure code quality Implement front-end security best practices to mitigate risks like signature spoofing and wallet vulnerabilities  Collaborate closely with backend engineers and designers to implement the design team’s UX vision across Noble’s product offerings  Integrate front-end performance monitoring and user analytic tools to track and improve usability Debug and troubleshoot front-end issues related to all Noble products Contribute to internal front-end tooling and workflows that improve efficiency Help build and maintain a scalable component library, ensuring a consistent design system Develop, standardize, and maintain an API for browser-wallet interactions Optimize UI interactions for transaction handling

Requirements

More than 3 years of front-end development experience in Web3 and DeFi Familiarity with the Cosmos ecosystem Experience with React, GraphQL, Next.js (and their "new" app router paradigm), TypeScript, A strong understanding of CSS and meta-frameworks around it, specifically Tailwind Have a strong eye for design—effortlessly balance aesthetics and functionality Excellent problem solving skills and attention to detail Strong communication and collaboration skills, with the ability to work effectively in a remote team environment and across multiple time zones

Nice to Have

 Experience with Ethereum, Wagmi, Viem, React Native

Compensation

Competitive base salary Competitive equity compensation

Perks

Opportunity for career development in a fast paced emerging industry Work with people who are passionate about what they do and also like to have fun Company issued hardware  100% remote with travel opportunities for team off-sites and community conferences  Option of coworking space, if desirable  5 weeks of paid vacation  Life>

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Intetics Inc., a leading American technology company specializing in custom software development and digital solutions, is looking for a Senior Frontend Developer to help build a cutting-edge blockchain DEX platform.

Responsibilities:

• Develop and enhance the decentralized exchange (DEX) platform
• Build and optimize React-based user interfaces for seamless blockchain interaction
• Collaborate with blockchain engineers and backend developers
• Ensure high performance, scalability, and security of the application

-Strong experience with React & JavaScript/TypeScript (Senior level)

Apply Now:

Solana Foundation is looking to hire a Developer Advocate - Education to join their team. This is a full-time position that can be done remotely anywhere in the United States.

Solana Foundation - A non-profit organization dedicated to the decentralization, growth, and security of the Solana network.

Company Description

At NFTeria Inc., we empower individuals to own the future by merging innovation, security, and decentralization into seamless solutions. Our goal is to push boundaries in Web3, AI-driven authentication, and blockchain technology, helping users stay ahead in a fast-moving world. We are redefining digital ownership by building a future where trustless authentication, self-sovereign identity, and frictionless interactions are the standard.

The Opportunity

The time is right for this. Everything is Web3—no off-chain gaps, no compromises, just pure decentralization.

We’re assembling a highly specialized team for a unique and groundbreaking project. This is an opportunity to work at the intersection of blockchain, AI, and Web3 infrastructure, where AI agents communicate with ML models, feeding predictions into automated decision-making processes that integrate seamlessly across decentralized systems.

Since there are many open positions, this post is the first step in identifying who’s who. As we refine our hiring process, we’ll focus on filling the most critical roles with top-tier talent. If you’re interested, reach out and be part of something truly special.

Open Positions

Smart Contract Specialists (9 Total)

• 3 Vyper (Ethereum-based, web3.py, MetaMask, Rabby Wallet)

• 3 Rust (Solana, Anchor framework, Phantom, Solflare Wallets)

• 3 Clarity (Stacks blockchain, Stacks.js, Hiro Wallet)

Web3 Full-Stack Developers (2 Total)

• Python, Vyper, Moccasin, Boa, Anaconda (SNAKE ENVs)

AI Agent Engineers (4 Total)

• 2 Python-based AI Agents (LangChain)

• 2 TypeScript-based AI Agents (ElizaOS)

Machine Learning Developers (2 Total)

• Time Series Forecasting, TensorFlow, Scikit-Learn, Keras, Python

Frontend Developers (2 Total)

• Vanilla CSS, HTML, TypeScript, modular code

Stack-Specific Tooling

• Clarity (Stacks blockchain) → Uses Stacks.js for frontend interactions + Hiro Wallet

• Ethereum-based (Vyper) → Uses web3.py + MetaMask, Snaps

• Solana (Rust) → Uses Anchor framework + Phantom, Solflare Wallets

• Bitcoin L2s → Uses Stacks.js or other Bitcoin-native tooling + Xverse, Leather Wallet

Role Description

This is a full-time remote role for Blockchain Developers at NFTeria Inc. Responsibilities include:

• Developing and securing blockchain solutions across multiple chains.

• Integrating AI-driven authentication via computer vision & decentralized identity models.

• Building seamless, trustless interactions between AI agents, ML models, and smart contracts.

• Working with cryptography, back-end web development, and scalable decentralized architecture.

Qualifications

• Expertise in Blockchain & Smart Contract Development (Solidity, Vyper, Rust, Clarity).

• Cryptography & Decentralized Identity (DID) solutions experience.

• Proficiency in AI-driven authentication (computer vision, ML-based fraud detection).

• Deep experience in Web3 tooling, wallets, and frameworks.

• Strong problem-solving & analytical skills in a high-speed, innovation-driven environment.

Why Join?

• This is a special project, an opportunity to be part of something revolutionary. We’re moving fast—if this excites you or you know someone who would be a great fit, share this post and let’s build the future together. 🚀

Apply Now:

We are developing a miniApp in Telegram for exchanging cryptocurrencies for fiat and vice versa. Our service ensures fast, convenient, and secure exchange with minimal fees.

We are currently looking for a Backend Developer (Spring Boot) to continue development and support the project.

What you'll be doing:

• Developing and maintaining the backend for the Telegram miniApp using Spring Boot.
• Integrating with TronGrid (receiving/sending USDT TRC-20).
• Developing and improving the admin panel (user management, orders, exchange rates).
• Creating REST API for the frontend (Vue.js) and integrating with the Telegram bot.
• Optimizing the PostgreSQL database, setting up caching in Redis.
• Implementing secure authentication (JWT, OAuth 2.0).
• Ensuring server stability and fault tolerance.

What we are looking for:

• At least 2 years of experience with Java + Spring Boot.
• Strong knowledge of REST API, PostgreSQL, Redis.
• Ability to work with Docker (basic level required).
• Understanding of authentication principles (JWT/OAuth 2.0).
• Experience integrating external APIs (e.g., payment gateways, crypto APIs).
• Knowledge of multithreading and transaction processing.
• Basic knowledge of RabbitMQ/Kafka (nice to have, but not required).
• Experience with fintech or crypto-related projects is a plus.

What we offer:

• Salary $2500-3000 per month.
• Remote, office, or hybrid work (Czech Republic).
• Flexible working hours (full/part-time, full-time preferred).
• Opportunities for growth in crypto-fintech.
• Long-term collaboration (with potential for salary increases based on performance).

How to apply?

Send your resume + code samples (GitHub, portfolio) to Telegram @xchangio_support or email email

Looking forward to working with you! 🚀

Apply Now:

Staff Software Engineer, Backend (Platform - Finhub)

About Finhub:

FinHub is at the core of Coinbase, processing and recording fund movements for our clients and our business. We are responsible for processing transactions across crypto, fiat and internal wallet, and managing the assets for our users including providing portfolio performance, user tax optimizations etc. With rapid growth of the industry and the company, our scale and complexity of operations quickly surpassed the original design of typical ledgering systems. Currently, we are taking on a challenge to unlock the next level of evolution for fund movements architecture. This is a unique opportunity to redesign foundational systems that will set Coinbase up for success in the next decade.

What you’ll be doing:

• Architect and develop next generation book and records system that power Coinbase
• Provide technical structure to teams and work closely with management and stakeholders to define strategic roadmaps
• Manage individual projects priorities, deadlines and deliverables with your technical expertise
• Mentor and train other team members on design techniques and coding standards
• Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers

What we look for in you:

• 8+ years of experience in software engineering
• You’ve built fault tolerant, highly reliable systems at scale
• You’ve experienced architecting and developing solutions to ambiguous problems with significant impact
• You have experience applying these skills to Ledgering or Trading systems at scale.
• You’re passionate about building an open financial system that brings the world together

Nice to haves:

• Have experience with Aeron, Raft, high performance Java
• Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.
• You have gone through a rapid growth in your company (from 10 to 100s of engineers)

Job #: GPBE06US

#LI-Remote

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About Oak Security

​​Do you want to help prevent cybersecurity attacks of the future? At Oak Security, we support some of the most innovative companies to secure their protocols. Our passionate team of 52 security engineers have performed over 600 audits since 2017.

Oak Security was one of the first companies to offer auditing and security consulting for third-generation blockchains and is the leading security service provider in Rust and Go-based ecosystems, such as Cosmos SDK and CosmWasm, Polkadot and Substrate, Solana, NEAR, and Flow (Cadence). We also serve Ethereum and EVM-compatible ecosystems through our brand Solidified.

We are growing our pool of security engineers for blockchain and smart contract security audits. Get a chance to work in the most exciting and fastest-growing ecosystems in the blockchain space and help secure the decentralized future!

What we offer:

• Escape the 9 to 5 lifestyle: We offer the most flexible remote working conditions imaginable, in a friendly team environment
• Top of the industry compensation
• Competitive incentive and referral programs
• A growing base of exciting clients at the forefront of the top blockchain ecosystems

What you can work on:

• High-level security consulting/architecture reviews
• Smart contract audits (Solidity, CosmWasm, ink!, Cadence, Cairo)
• Layer 1 audits (Cosmos SDK, Substrate/Polkadot, consensus level)
• Bridge audits (custodial, light-client-based, zk-based)
• Code reviews in various programming languages (Go, Rust, Solidity, Cadence, Cairo, JavaScript, TypeScript)

What we expect from you:

• 2+ years of Rust/Go experience or 4+ years of Solidity experience with a passion for finding issues in code and an outstanding detail orientation
• Knowledge of cryptographic protocols and understanding of cybersecurity
• Deep interest in blockchain technology and decentralization
• Experience in decentralized finance and economic modeling is a plus

Reown is looking to hire a QA Tester to join their team. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

Reown - Toolkits to build onchain UX.

Molecule is at the heart of the Decentralized Science (DeSci) movement where biotech and blockchain meet to democratize scientific research, earning recognition and support from key figures in the web3 world, including Vitalik Buterin, Balaji, and Juan Benet. We're known for creating VitaDAO, the first and largest biotech DAO with more than $4m in funding deployed, bio.xyz, a vital hub supporting and building biotech DAOs, the IP-NFT, a protocol bringing rights to IP and R&D data on-chain, and IPTs, ERC-20 tokens minted from IP-NFTs to allow token holders to construct and cultivate valuable IP. We’ve also recently launched launchpad, a platform to launch, discover, and fund the best projects in DeSci.

Over the past 24 months, we have raised $20+ million to build the future of decentralized biotech. Join us and contribute to a future where scientific discovery is driven by web3.

About Us

BIO.xyz is at the forefront of the Decentralized Science (DeSci) revolution. We are building the next-generation financial layer to accelerate biotech innovation by decentralizing funding, coordination, and governance of scientific IP. Our mission is to empower researchers, universities, and companies worldwide to commercialize the best science faster through blockchain technology.

With our protocol, BIO.xyz enables funding, development, and governance of tokenized scientific intellectual property (IP), fostering a thriving ecosystem of biotech DAOs and IP assets. Join us to reshape the future of science and innovation!

Your Role

At BIO.xyz, we are building the future of decentralized science (DeSci). Our platform connects autonomous agents to cutting-edge labs and smart contract-based treasuries, enabling researchers and agents to collaborate, innovate, and push the boundaries of scientific discovery. We are looking for a passionate Full Stack Developer to bring this vision to life.

What You'll Be Doing

• Platform Development: Design and build scalable, modular front-end and back-end systems for the Bio Protocol platform.

• Web Application: Create intuitive UIs for researchers and agents to submit tasks, manage funding, and view experiment outcomes.

• Blockchain Integration: Develop and integrate Ethereum smart contracts (Layer 1 or Layer 2) into the platform for $BIO token transactions, staking, and rewards.

• API Layer: Build RESTful or GraphQL APIs to connect the front-end interface with agent harnesses and external lab resources.

• Database Management: Implement decentralized and traditional databases to store metadata, reputation scores, and task logs.

• Security: Ensure all platform components adhere to the highest security standards, including encryption, authentication, and transaction safety.

What We’re Looking For

• 3+ years in fullstack development

• Proven experience with blockchain technology (Solidity, Hardhat, or similar

• Proficiency in JavaScript/TypeScript, Node.js, React.js/Vue.js, and Python

• Experience with database systems like MongoDB, PostgreSQL, or IPFS

• Knowledge of smart contract development and integration (e.g., ERC-20, staking mechanisms)

• Understanding of Ethereum Layer 2 solutions (Polygon, Optimism, Arbitrum)

• Enthusiasm for decentralized systems, DeSci, and innovation in research

• Experience in integrating AI/ML models with web applications preferred

• Contribution to open-source projects in blockchain or scientific domains is a big plus

Why Join Us?

At BIO.xyz, you’ll be part of an innovative, mission-driven startup that’s disrupting the world of decentralized science. If you’re passionate about pushing boundaries and creating real-world impact, this is your opportunity to shape the future of research and innovation.

Here, you’ll work alongside a skilled, fast-paced team that thrives on creativity, collaboration, and bold ideas. You’ll be challenged, inspired, and empowered to bring your best work every day.

• HODL: You’re not just taking a job — you’re joining a movement. Every project you contribute to directly impacts the future of science and technology.

• WAGMI: We reward most full time positions with token equity and give you the opportunity to co-author future DeSci standards.

• Alpha: In our young, fast growing team, your voice matters. You’ll have the chance to shape not only your future but also the future of science research and innovation.

If you’re ready to take on big challenges, work with brilliant minds, and create something that matters, LFG - BIO.xyz is the right place for you!

We are an equal opportunity employer. We are committed to equality and weaving a community that values diverse perspectives and experiences and are actively seeking a diverse pool of applicants. All employment decisions are made without regard to race, colour, national origin, ancestry, sex, gender, gender identity or expression, sexual orientation, age, genetic information, religion, disability, medical condition, pregnancy, marital status, family status, veteran status, or any other characteristic protected by law.

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Job Summary:

Key Responsibilities:

• Wallet Integrations: Implement popular wallet providers (MetaMask, Coinbase Wallet, WalletConnect), manage wallet injection events, and handle modals.
• Smart Contract Interaction: Work with smart contracts using tools like Web3.js or Ethers.js; collaborate on decentralized application (DApp) development.
• Troubleshooting & Debugging: Diagnose and resolve blockchain-related integration issues, ensuring compatibility across various wallet providers.
• Security Best Practices: Maintain secure wallet integrations, protect user data, and uphold safe transaction protocols.

Requirements:

• Proven experience in blockchain/Web3 development (Solidity, EVM-compatible chains).
• Familiarity with decentralized application stacks, including front-end integration.
• Strong problem-solving skills for debugging on-chain/off-chain interactions.
• Awareness of security standards and best practices in blockchain.

Preferred Qualifications (Senior Level):

• Experience leading blockchain projects from ideation to deployment.
• In-depth knowledge of scaling techniques, layer-2 solutions, and advanced Web3 tooling.
• Track record of architecting secure, production-ready DApps.

Ready to innovate in the Web3 ecosystem?

Hybrid Work Structure: Enjoy the flexibility of a hybrid work environment—split your time between working from home and in the office.

Independence & Ownership: Take ownership of your work with the freedom to make decisions that directly impact the success of the project.

Open to Ideas: Your voice matters. We encourage creative input and are always open to listening to your ideas and solutions.

Structured & Responsible: We need people who are independent but also responsible and organized to ensure things run smoothly and on schedule.

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• Blockchain Traffic Management, includi stateful failover between multiple external providers
• Managing data consistency and block freshness to power critical internal services, such as our wallets and indexers
• Ensuring reliability and scalability across the blockchain platform stack
• Pioneering new technologies such as decoupling blockchain node storage and compute
• Building a platform on top of our existing nodes to reduce engineering effort and ops TOIL

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About Us:

Khantech is an IT startup dedicated to redefining the iGaming experience with cutting-edge technology and creative solutions. We are a team of Engineers, Designers, and gaming enthusiasts working remotely within Europe and Asia or in-house in our UAE/Dubai premises. 

About the product:

https://www.vatanplatform.com

We are looking for a highly skilled Full Stack Blockchain Developer to join our team. The ideal candidate will be proficient in both blockchain development and full-stack web development. You will be responsible for developing decentralized applications (dApps), smart contracts, and the backend and frontend of blockchain-based systems.

Job Responsibilities:

• Design, develop, and deploy smart contracts and decentralized applications (dApps) on various blockchain platforms (Ethereum, Binance Smart Chain, etc.).

• Build and maintain front-end interfaces using modern web technologies (React, Angular, Vue.js, etc.).

• Integrate front-end with back-end APIs, databases, and blockchain solutions.

• Develop and implement secure, scalable, and efficient blockchain-based systems.

• Troubleshoot, debug, and optimize blockchain applications and smart contracts.

• Collaborate with cross-functional teams including product managers, designers, and other developers to define and implement new features.

• Stay up-to-date with emerging trends and technologies in blockchain, DeFi, and Web3.

• Ensure compliance with security protocols and best practices.

• Contribute to codebase and manage version control using Git.

Key requirements:

• 3+ years of experience in full-stack development.

• Strong knowledge of cryptographic principles and blockchain architecture.

• Proficient in web technologies (HTML5, CSS3, JavaScript, TypeScript).

• Experience with databases (SQL and NoSQL).

• Knowledge of version control systems like Git.

• Experience with testing frameworks for smart contracts (Truffle, Hardhat, etc.).

• Familiarity with deploying applications on cloud platforms (AWS, GCP, etc.).

• Proven experience working with blockchain technologies (Ethereum, Solana, Binance Smart Chain, etc.).

• Hands-on experience with smart contract development (Solidity, Rust, Vyper, etc.).

• Experience building decentralized applications (dApps) and integrating them with blockchain networks.

• Familiarity with Web3.js, Ethers.js, or similar JavaScript libraries for blockchain interaction.

• Experience with backend development frameworks like Node.js, Express, Django, or Flask.

• Proficiency in front-end technologies such as React.js, Vue.js, or Angular.

Expected Soft skills (3-5 the most important attributes)

• Strong problem-solving and analytical skills.

• Excellent communication and teamwork skills.

• Ability to quickly learn new technologies and adapt to changing environments.

Benefits:

• 🚀Competitive Salary

• 📚Comprehensive Training and Career Development through our talent management program

• 🌐Fully remote or Comfortable office in Dubai, OAE/Erevan, Armenia

• 🏖️Generous Paid Vacation

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Biconomy empowers Web3 developers to build seamless, user-friendly dApps that work effortlessly across multiple blockchains. Our battle-tested modular account and execution stack eliminates traditional UX friction points, helping projects accelerate user adoption while reducing development costs. By processing over 50 million transactions across the 300+ dApps we’ve served, we’re powering the future of onchain economies.

The Role: Innovating at the Intersection of AI and DeFi

We’re assembling a new team to build an innovative AI-powered product aimed at transforming how users do on-chain transactions. This is a greenfield project in its early development, offering a unique opportunity to tackle complex challenges and push the boundaries of AI in Web3. We can share more details about the project throughout the interview process.

What Will You Be Doing?

• Develop next-generation AI for Crypto Transactions: Design and implement AI-driven solutions that enhance multi-chain interactions, focusing on scalability, security, and usability.
• Optimize AI & Multi-Agent System Performance: Work on improving system efficiency when interacting with AI models, mitigating hallucinations, and enhancing the performance of multi-agent systems for latency and accuracy.
• Build AI-powered automation systems: Develop and deploy LLM-based AI agents capable of interpreting and executing user intents, providing automated execution strategies for on-chain transactions.
• Deploy and fine-tune local AI models: Ensure high efficiency, accuracy, and security in real-world DeFi applications by fine-tuning LLMs and local machine learning models.
• Work with advanced blockchain infrastructure: Implement solutions that understand and process on-chain DEX transactions, bridge transactions across EVM and non-EVM chains, and optimize execution paths.
• Collaborate cross-functionally: Work closely with blockchain engineers, product teams, and UX/UI designers to integrate AI seamlessly into the Biconomy ecosystem.
• Stay on the cutting edge: Research and experiment with the latest advancements in AI, machine learning, and blockchain to keep our product innovative and competitive.

Requirements:

• 5+ Years of Software Development: Including at least 2 years in blockchain development, with proven experience leading technical teams and projects.
• Strong AI & ML Expertise: Hands-on experience deploying and fine-tuning LLM models and developing local AI models for optimized inference.
• Deep blockchain knowledge: Understanding of on-chain DEX transactions, bridge transactions across EVM and non-EVM chains, and the infrastructure behind them.
• DeFi Enthusiast: 2+ years of experience interacting with DeFi protocols and multi-chain ecosystems.
• Proficient in Python, TypeScript, and React, with a focus on clean, scalable, and maintainable code. Knowledge of Solidity or Rust is a plus.

What We Offer:

• Flexible Working Hours: Enjoy autonomy over your schedule.
• Generous Vacation Policy: 25 days vacation per year plus public holidays
• Competitive Salary: With regular performance reviews.
• Token Allocation: Be rewarded with tokens as part of our compensation package.
• Growth Opportunities: Be part of an exciting new project with significant career growth potential.
• Innovative Work Culture: Join a team that’s at the cutting edge of Web3, AI, and DeFi, and help shape the future of the digital economy.
• Fun and Engaging Team Activities: Game nights, virtual celebrations, and work retreats to keep things exciting.

At Biconomy, we believe in creating a diverse and inclusive workplace. We are committed to being an equal-opportunity employer, and we do not discriminate based on race, national origin, gender, gender identity, sexual orientation, disability, veteran status, age, or any other legally protected status.

About Us

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

We are a diverse team of around 60 people distributed all over the globe. We value radical transparency, striving for excellence and improvement while treating each other with kindness and generosity. If this sounds like you, we’d love to hear from you.

Role

As a Platform Engineer, you must be able to work in an ambiguous environment with an optimistic attitude, that can easily (and happily) wear many hats. You are able to uphold our company’s principles and values while adding to our unique culture. As a member of our Team, you will broadly be responsible for working collaboratively with team members and partners across projects. The right person will be responsible for maintaining, scaling, and monitoring existing infrastructure, including cloud machines, bare-metal servers, and a Kubernetes cluster, to allow Chorus One to provide secure and reliable industry-leading Proof-of-Stake validation services. Leading with intellectual curiosity with a high standard of excellence as well as ensuring best practice across development, testing, and security.

The Platforms Engineers within our Infrastructure team play a pivotal role in laying the foundation for Chorus One’s ongoing growth, thus we are continuously expanding our team and seeking skilled Platforms Engineers to join us.

Job Type: Full-time

Responsibilities

• Maintain, scale and monitor existing infrastructure, including bare metal servers, cloud machines, and a Kubernetes cluster, to allow Chorus One to provide secure and reliable industry-leading Proof-of-Stake validation services.
• Institute monitoring and alerting systems for infrastructure. Enable other team members to attend to and troubleshoot problems as they arise.
• Take all steps required to ensure maximum availability and uptime of maintained blockchain networks. This includes routine and emergent application updates, monitoring of systems, timely response to alerts and on-call phone calls, as well as rapid response to mitigate site outages.
• Develop software related to blockchain data extraction or interchain communication, on an as-needed basis.
• Reason about and improve the security properties of infrastructure. Secure key management, server hardening, and intrusion detection are important themes.

What we are looking for

• Strong Linux skills, including a deep understanding of the kernel and userspace.
• Strong networking skills, including a deep understanding of routing, forwarding, and load-balancing.
• Has prior experience with a range of orchestration and configuration management tools. We use Kubernetes, Ansible, Terraform and Salt.
• Is able to develop tooling, and monitoring solutions where none exist and can debug unreliable software - many of the projects we run are of alpha quality.
• Possesses good knowledge of security as it relates to bare metal and cloud-based infrastructure.
• We are not just looking for someone who can configure an existing cloud solution, but we are looking for someone who can build the infrastructure underlying a cloud.
• We expect candidates to know one programming language in addition to Bash, and we test for this with a coding interview. We don’t expect you to be a seasoned software engineer, but we do expect you to be comfortable writing small programs. Popularly used languages at Chorus One are Python, Golang and Rust.
• Is able to work independently, with a high level of ambiguity and undefined requirements.
• Bachelor’s or advanced degree in Computer Science or a related subject is a plus, but not strictly needed.
• You are able to work in the following time zone: Switzerland ± 6 hours.

Our Offer

• Autonomy and ownership in a friendly and supportive work environment and the opportunity for rapid growth.
• Competitive fixed compensation (USD 100k - 140k) + equity.
• All-expense paid biannually team retreats at various destinations (Coronavirus permitting). Past retreats took place in Egypt, Serbia, Kenya, USA, South Korea, and Dubai.
• Remote, but not alone. We are a strong global collaborative environment.
• Remote working budget (Laptop, co-working space, etc)
• Personal development budget
• Gather experience and build your network in the vibrant crypto ecosystem.
• Learn about state-of-the-art protocols that lay the foundation for an open, transparent, and programmable financial system.

Biconomy empowers Web3 developers to build seamless, user-friendly dApps that work effortlessly across multiple blockchains. Our battle-tested modular account and execution stack eliminates traditional UX friction points, helping projects accelerate user adoption while reducing development costs. By processing over 50 million transactions across the 300+ dApps we’ve served, we’re powering the future of onchain economies.

The Role: Innovating at the Intersection of AI and DeFi

We are assembling a world-class team to redefine on-chain analytics using AI Agents & Machine Learning. As a DevOps Engineer, you will build and optimize the AI & ML infrastructure, enabling real-time wallet activity analysis, ML-driven tagging, and PnL insights at scale. You’ll work with Kafka, Snowflake, AWS S3, and high-speed data pipelines to process over 10-15 billion rows of historical data and real-time streaming events, ensuring a scalable, secure, and efficient AI ecosystem.

This is a high-impact role at the core of our AI-driven crypto intelligence platform.

What Will You Be Doing?

Scalable AI & ML Infrastructure

• Design & optimize cloud-native architectures for AI & ML-driven analytics on DeFi transactions.
• Develop and maintain high-performance, distributed computing environments that process billions of on-chain and off-chain events.
• Deploy and manage ML models & AI agents efficiently in Kubernetes (K8s) and other containerized environments.

High-Speed Data Engineering

• Design real-time streaming pipelines using Kafka for high-frequency on-chain transaction ingestion.
• Optimize Snowflake queries & storage solutions to handle large-scale blockchain datasets efficiently.
• Implement ETL/ELT pipelines for structured & unstructured blockchain data aggregation.

Infrastructure Automation & Reliability

• Automate cloud infrastructure using Terraform, Pulumi, or CloudFormation for seamless scaling.
• Enhance security & performance with CI/CD best practices for AI model deployment.
• Implement observability, logging & monitoring with tools like Prometheus, Grafana, and Datadog.

ML & AI Model Deployment

• Streamline model deployment for AI agents that analyze blockchain wallet behavior.
• Build infrastructure to support model training, inference, and real-time decision-making.
• Optimize GPU workloads for AI-driven pattern recognition & risk analysis.

Collaboration Across Teams

• Work alongside AI engineers, blockchain developers, and data scientists to integrate AI-driven insights into DeFi tools.
• Optimize node infrastructure & RPC services for multi-chain DeFi interactions.
• Research and implement best practices in Web3 DevOps, cloud automation, and ML infrastructure.

Requirements:

Core Experience

• 5+ years of DevOps experience, specializing in AI/ML infrastructure & high-scale data pipelines.
• Expertise in AWS, GCP, or Azure, focusing on scalable, event-driven architectures.
• Experience handling Kafka queues, Snowflake databases, and massive-scale data processing.

DevOps & Infrastructure Skills

• CI/CD Automation using GitHub Actions, CircleCI, Jenkins, or ArgoCD.
• Kubernetes & Docker for managing AI workloads and high-performance model inference.
• Infrastructure-as-Code (IaC): Terraform, Pulumi, or CloudFormation.

Data Engineering & AI Model Ops

• Experience with Kafka, Snowflake, and S3 for real-time & historical data processing.
• ML Model Deployment: Knowledge of TensorFlow, PyTorch, or ONNX for AI-based wallet analytics.
• Strong Python & Bash scripting for automation and orchestration.

Security & Reliability

• Security-first mindset: Experience with IAM, firewall management, and Web3 security best practices.
• Observability & Monitoring using Prometheus, Grafana, Datadog, or OpenTelemetry.

Bonus Skills

• Experience with multi-chain blockchain infrastructure (Ethereum, Solana, L2s).
• Knowledge of DeFi protocols, smart contracts, and risk analytics.
• Experience with AI inference at scale (Ray, Triton, Hugging Face Transformers, etc.)

What We Offer:

• Flexible Working Hours: Enjoy autonomy over your schedule.
• Generous Vacation Policy: 25 days vacation per year plus public holidays
• Competitive Salary: With regular performance reviews.
• Token Allocation: Be rewarded with tokens as part of our compensation package.
• Growth Opportunities: Be part of an exciting new project with significant career growth potential.
• Innovative Work Culture: Join a team that’s at the cutting edge of Web3, AI, and DeFi, and help shape the future of the digital economy.
• Fun and Engaging Team Activities: Game nights, virtual celebrations, and work retreats to keep things exciting.

At Biconomy, we believe in creating a diverse and inclusive workplace. We are committed to being an equal-opportunity employer, and we do not discriminate based on race, national origin, gender, gender identity, sexual orientation, disability, veteran status, age, or any other legally protected status.

Nansen is looking to hire a Staff Security Engineer to join their team. This is a full-time position that can be done remotely anywhere in Europe.

Nansen - Onchain insights for crypto investors & teams.

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The Institutional Product Group engineers create and maintain a suite of products catering to institutional customers of all sizes from Hedge Funds (Coinbase Prime) to experienced individual traders (Coinbase Advanced Trade) and everything in between. Additional Products include Prime - Custody Only, Prime Web3 Wallet, Commerce and Exchange. Whether the customer needs are trading, staking, governance, custody, web3 operations, or API integrations, Coinbase Institutional has them covered.

At Coinbase, we believe that "onchain" is the new "online" – marking the next evolution in how global business is conducted and value is created. Our Institutional Product Group is a trailblazer in this space, empowering a diverse range of sophisticated clients—from hedge funds to professional traders—with state-of-the-art onchain products and services.

We’re seeking a Senior Full-Stack Engineer to join our small entrepreneurial team focused on building innovative 0-to-1 Onchain Markets products. Operating as a startup within Coinbase, we're combining the agility of a small team with the resources and reach of a global platform. In this role, you’ll contribute to building cutting-edge solutions that span trading, financing, and more, helping to redefine market infrastructure for the institutional world in this new global onchain economy.

What you’ll be doing (ie. job duties): To be completed by all business teams except Eng.

• Drive 0-to-1 product development for new Onchain Markets offerings
• Develop and maintain highly interactive, responsive, and user friendly frontend applications for onchain products
• Design, develop, and optimize smart contracts using Solidity to enable new onchain products and features
• Build and integrate backend systems to power the onchain data needs of Onchain Markets products
• Rapidly prototype new onchain experiences to gain early feedback
• Troubleshoot and debug complex fullstack issues, ensuring performance, stability, reliability, and security.

What we look for in you (ie. job requirements): To be completed by all business teams except Eng.

• 5+ years of full-stack engineering experience shipping production features, including onchain products
• Expert in modern JavaScript/TypeScript, React, and Next.js
• Strong Solidity skills with experience deploying production smart contracts
• Track record building secure, high-performance web applications
• Deep understanding of blockchain fundamentals and DeFi protocols
• Experience with backend development and API design
• Proven ability to balance technical excellence with pragmatic delivery
• Strong collaboration skills with product, design, and engineering teams

Nice to haves:

• Experience building or scaling DeFi protocols
• Contributions to open-source blockchain projects
• Background in trading systems or financial exchanges
• Experience with Golang and cloud infrastructure (AWS)
• Understanding of institutional trading workflows
• Track record in high-growth crypto or fintech environments

Job #: GIFE05US

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

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What we’re looking for

StableUnitDAO is looking for a lead solidity architect for a complex DeFi protocol (not NFT)

Requirements

• DeFi solidity contracts deployed on mainnet in the last 12 months
• Knowledge of OZ libs and modern DeFi primitives
• You know system design of DeFi protocols, CDP, lending etc
• Experience with modern DeFi best practices

You must have prior experience with at least one of

• Projects with simultaneous multichain
• Projects with mission critical oracle
• Yield aggregators/optimizers
• CDP/Algo stablecoins
• Lending protocols

Detailed explanation of the protocol.

In this project you will work side by side with an architect who is ex 1inch, facebook, amazon, prizewinner of ethNY (award from Binance labs, Wyre, Matic), ethBoston (JPMorgan), ethDenver (MakerDao, Chainlink), ethLison (Gnosis), cs-national team, math degree, wrote multiple contracts with $1.1B in volume. The project itself is a winner of multe grants including Arbitrum security grant.

The protocol is 100% owned by a DAO, members of which are accomplished investors and DeFi builders, such as founders and early employees from 1inch, lobsterDAO, GearBox, PowerPool, Zerion, ZeroPool, STFX. Advisors and early investors of Binance, Matic, Bittensor, Trustwallet and others. We’re open for all formats of work, full/part-time, project-based or outstaff.

How to apply

Self-check: For some inexplicable reasons some folks lie about their experience, but is just a waste of our and your time. Be sure you know all main topics of “mastering ethereum”, read and actually understand solidity/opcode/evm specs, and can easily solve any task from https://ethernaut.openzeppelin.com.

If you are a good match:

1. Send us 2 addresses of mainnet smart-contacts you developed that you are most proud of.
2. We would schedule a single 30m tech interview.
3. After interview, we are immediately ready to sign the paid contract for the test period/project.

For any questions https://t.me/elpinguinofrio

Job Description

We are looking for an experienced Smart Contract Auditor / On-Chain Engineer to join our fast-growing team. As a member of our team, you will be responsible for auditing and securing smart contracts, modeling edge cases and hack scenarios, as well as developing and maintaining on-chain infrastructure solutions. You will work closely with our blockchain developers and product teams to ensure the integrity and security of our smart contracts deployed across various decentralized platforms.

A key part of your role will be conducting in-depth research on emerging protocols and staying up to date with the latest trends, vulnerabilities, and innovations in the DeFi and blockchain space. This will help you ensure that our smart contracts are not only secure but also take full advantage of new, best-in-class protocol features.

Additionally, a solid understanding of on-chain execution, including optimizing transaction flows, is essential for this role. Experience with writing trading bots that interact with on-chain protocols or decentralized exchanges would also be highly beneficial.

If you are passionate about the intersection of blockchain technology, security, and innovative development, this role is for you.

Responsibilities:

• Research Emerging Protocols: Analyze new blockchain protocols, reviewing their documentation, audits, and smart contracts to identify risks and recommend improvements for integration.
• Code Review & Analysis: Review code for compliance with best practices, identifying potential security flaws, and ensuring that contracts function as intended.
• Smart Contract Auditing: Perform thorough security audits on smart contracts, identifying vulnerabilities, bugs, and optimization opportunities. Provide actionable recommendations to mitigate risks.
• Collaboration with Teams: Work closely with blockchain developers, product managers, and stakeholders to design and implement secure smart contract solutions.
• Troubleshooting and Technical Support: Provide support for ongoing issues or incidents related to smart contract vulnerabilities or failures.
• Documentation & Reporting: Maintain detailed reports and documentation on auditing processes, findings, and resolutions.

Requirements & Skills:

• 3+ years of experience in smart contract auditing and on-chain development.
• Strong proficiency in Solidity and in-depth understanding of Ethereum Virtual Machine (EVM) and gas optimization.
• Familiarity with decentralized finance (DeFi) protocols and platforms (e.g., Uniswap, Aave, Compound, Pendle).
• Deep knowledge of smart contract security best practices, including common vulnerabilities
• Knowledge of consensus mechanisms used in PoS systems (staking, restacking, slashing , etc …).
• Experience with on-chain execution, including transaction optimization, gas management, and effective interaction with DeFi protocols.
• Ability to provide clear technical documentation and communicate security findings to both technical and non-technical stakeholders.
• Fluent in English (wriYen and spoken), with the ability to communicate effectively in a distributed team.

Nice to Have:

• Experience with other blockchain platforms such as Solana, Cosmos, or
• Familiarity with formal verification techniques or static analysis tools for smart contract auditing.
• Experience writing and maintaining on-chain trading bots or algorithms that interact with decentralized exchanges or other on-chain assets.

We Offer:

• Competitive salary and performance-based bonuses.
• Remote-first environment with flexible working hours.
• A dynamic and fast-paced work environment where you can contribute directly to cutting-edge blockchain products.
• Opportunities for personal growth and skill development in the growing blockchain and DeFi space.
• A collaborative, innovative team of professionals passionate about blockchain, crypto, and DeFi.

Position: Full-time

Location: Flexible; availability during US trading hours is preferred.

About Edge Capital

Edge Capital is an innovative alternative hedge fund focused on digital assets, blockchain, and decentralized finance (DeFi) markets. We combine algo trading and macro strategies to identify untapped opportunities in these markets based on our multidisciplinary expertise in macro trading and analysis, portfolio, and risk management, combined with our extensive knowledge and experience in fintech, DeFi, and blockchain technologies.

• Team - The Agent Productivity Tools (APT) team is a vital part of Coinbase’s Enterprise Applications and Architecture org, responsible for building the customer experience platforms that streamlines the customer service and compliance processes with innovative services, tools and applications that improve the efficiency and effectiveness of CX agents. This helps resolve customer issues and compliance KYC processes faster, with greater accuracy, and ultimately this leads to higher customer satisfaction levels and a better overall compliant experience for our customers.
• Role - You will be building applications that will enable Coinbase Customer Agents and other users to increase their productivity, drive automation, and deliver impact at scale through AI/ML-based technologies.

What you’ll be doing

• Build complete user features including front and backend using React, Js frameworks, Golang and cloud technologies
• Lead assessment and implementation of third-party AI/ML tools.
• Deliver cross-functional outcomes to complex problems in collaboration with product, design, security, data or other engineering teams
• Demonstrate a keen awareness of Coinbase’s platform, development practices, and various technical domains and build upon them to efficiently deliver improvements across multiple teams.
• Participate in an environment where innovative ideas are regularly generated, vetted, and transformed into action.
• Foresee potential issues before they arise and adapt their own approach, working within constraints to avoid adverse impact.
• Communicate across the company to technical and non-technical leaders with ease.
• Quickly distill complex technical themes so that an entry level, non-tech team member can understand them.
• Mentor team members in design techniques and best practices in coding, testing, release/deploy process, documentation, metrics/logging and scaling.
• Working with teams and teammates across multiple time zones.

What we look for in you

• You have at least 2 years of experience in software engineering and at least 5 years of experience in developing large scale systems with Golang and cloud technologies and shipping user-facing features with JavaScript and modern, component-based JS frameworks like React.
• Proven experience in integrating AI/ML APIs into web applications.
• Experience with third-party vendor integrations.
• You enjoy and have experience with large-scale, high-traffic platforms and implementing scalable, robust services in the real world.
• You have experience in authoring and contributing to technical architecture and implementing them.
• Experience in AWS, Kubernetes, Terraform, BuildKite or similar.
• Experience in rate limiters, caching, load balancing, circuit breakers, metrics, logging, tracing, debugging etc.
• Experience in event driven architectures (Kafka, MQ etc.), proficiency in either SQL or NoSQL DBs, understanding of concepts like gRPC, GraphQL, ETL.
• Proficiency in Go.

Nice to haves:

• Python, Ruby
• SaaS platform experience
• Applications using OpenAI/ChatGPT

Job ID: P63224

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Textile’s mission is to accelerate the exchange of information on the Internet.  We are a lean, fully remote team dedicated to a shared mission. Since our first ML product in 2018, we’ve consistently advanced the state of the art for the cryptographically secured distributed data foundations needed by an AI-driven web. We’re supported by USV, Multicoin, Blueyard, and other world-class investors as well as a thriving developer community. We value passion, integrity, and an innovative mindset. We look for rigorous thinkers who ship quickly, collaborate proactively, learn continuously, and contribute to a fast-paced and engaging remote workplace. If that resonates, join us! We strongly encourage applications from individuals who belong to groups historically underrepresented in technology.  The Opportunity We're seeking passionate Engineers to join our dynamic team at Textile. In this role, you'll work on innovative projects that push the boundaries of information exchange, developing robust and scalable technical solutions that have a meaningful impact on our mission. What You'll Achieve: Within your first year, you will:

Design and implement core infrastructure and engineering systems. Collaborate across teams to solve complex technical challenges. Develop and maintain high-performance, maintainable software. Contribute to architectural decisions that drive platform innovation. Create tools and processes that enhance team productivity and technical capabilities. Research and contribute to the product vision and help define the roadmap of multiple products.

Skills You'll Need: You’re likely a great fit if you...

Have 5+ years of production-level experience. Have a strong understanding of cryptography. Have familiarity with peer to peer networks. Have experience with Ethereum and/or other EVM blockchains. Have a broad understanding and passion for Web3. Are comfortable leading blockchain-related technical research. Are an excellent communicator and writer. Are incredibly curious, professional, personable, and self-directed. Have track-record of influencing and making critical decisions. Have open-source project experience. Have attention to detail with a passion for software architecture and design.

Bonus Points:

Familiarity with any part of our tech stack: onchain/web3, SQL, big data, NFTs/tokens, etc. Leadership in driving team objectives, balancing business needs with team dynamics, and personal development. A broader appreciation for the pioneers of computing and a personal investment in areas beyond technology.

At Textile, we believe in the power of diversity to foster innovation and creativity. We encourage candidates from all backgrounds to apply, especially those who share our vision of democratizing software customization. If you're passionate about this role but don't meet every single requirement, we still want to hear from you. We offer competitive compensation, equity, and benefits tailored to provide a comprehensive and fulfilling work-life balance. Learn more about us at https://basin.textile.io/, https://textile.io, @textile, https://github.com/tablelandnetwork, https://tableland.xyz, and @tableland. Perks:

Competitive salary and benefits. Contribute to projects at the forefront of the web. Work with a company on a mission to have a positive impact. Work on a fully remote team. Work with/on a small, passionate team. An entrepreneurial opportunity where you can have oversized impacts. Opportunity to drive innovation and strategy. Location Textile is a fully remote company spanning GMT -8 to GMT +1 (North America, South America, Central Europe). While being small, we've found that it is helpful to have a high level of overlap as a team. Learn more about us at https://github.com/tablelandnetwork, https://tableland.xyz, @tableland__, and https://textile.io.

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