Apply Now:

About Us

Re7 Capital is a London-based cryptoasset investment firm, leveraging our deep crypto network and proprietary data infrastructure to drive investment decisions across various DeFi and alpha strategies. Through Re7 Labs, we also collaborate with leading projects and blockchains to design DeFi ecosystems, provide on-chain risk curation, and deliver vault management services.

Our team combines expertise in investment management, data science, and crypto. To support our continued growth, we are seeking a motivated Full Stack Web Developer to join our engineering team. Reporting directly to the Head of Technology, you will take full ownership of our dApps, used to interact with our vault smart contracts.

Responsibilities

• Develop and maintain responsive, user-friendly front-end interfaces using React, Next.js, Vue or similar frameworks.
• Integrate EVM and non-EVM smart contracts using libraries like Ethers.js, Web3.js, Viem, Starknet.js and wallet connectors such as ConnectKit and wagmi.
• Support wallet integrations including MetaMask, Argent X, and Braavos.
• Design and implement scalable back-end services and APIs using Node.js, Express, and related technologies.
• Collaborate with blockchain engineers to interact with smart contracts and on-chain data.
• Implement best practices for security, including wallet connectivity, transaction handling, and protection of user data.
• Deploy and maintain applications on AWS (EC2, Elastic Beanstalk, S3, CloudFront), with a focus on scalability, logging, and monitoring.
• Set up and manage CI/CD pipelines using GitHub Actions or similar tools to automate testing and deployment workflows.
• Deploy applications to decentralized hosting environments (e.g., IPFS, Fleek) as well as cloud-based infrastructure.
• Ensure performance optimization through CloudFront caching, invalidation strategies, and SSL/TLS management.
• Contribute to Whisk infrastructure and security, ensuring resilient and secure production deployments.
• Work closely with designers, PMs, and cross-functional teams to define and deliver new DeFi features and enhancements.
• Implement and maintain interactive UI elements and animations using modern HTML/CSS (including transitions, keyframes, and responsive styling) within PHP-based web applications.

Requirements

• Proficiency in JavaScript/TypeScript and PHP.
• 5+ years of experience in web development, including 3+ years in dApp development.
• Hands-on experience integrating and interacting with both EVM and Non-EVM smart contracts.
• Familiarity with ConnectKit, wagmi, and Viem libraries for modern wallet connection flows.
• Experience deploying web applications on AWS using services like Elastic Beanstalk, EC2, and S3, with understanding of environment config, auto-scaling, and CloudWatch logging.
• Proficient in setting up CI/CD pipelines using GitHub Actions (or similar tools), including artifact packaging and automated deployment.
• Working knowledge of CloudFront, CDN behavior, cache invalidation, and AWS Certificate Manager.
• Familiarity with IAM roles, security groups, VPC setup, and cloud infrastructure security best practices.
• Experience with front-end frameworks (React, Next.js, Vue, etc.)
• Comfortable working in Linux environments and using Git for version control.
• Understanding of DeFi concepts and major protocols (e.g., Uniswap, Aave, Curve).
• Awareness of and ability to support Whisk infrastructure and security requirements.
• Basic knowledge of HTML5, CSS3, and animation techniques (e.g., transitions, keyframes, scroll-triggered effects), with the ability to integrate them into PHP-rendered views or templating engines.

Benefits

• A dynamic, collaborative, and highly technical work environment.
• Opportunities for professional growth in a rapidly evolving industry.
• Remote-first setup with regular opportunities to meet the team in person.
• Competitive compensation package.

Application Process

Please submit the following:

• Your resume
• A cover letter explaining your interest in the role
• Your response to the following technical challenge:
• Challenge: Describe a high-level architecture and solution for a dApp that supports both EVM and non-EVM wallets (e.g., MetaMask and Braavos). Include considerations for wallet detection, abstraction, and secure transaction signing.

Serokell is a fast-growing, fully remote software development company that works on innovative solutions for complex problems. We’re packed full of adventurous, curious, and inclusive folks who want to build cutting-edge software with modern technologies like functional programming.

This position is open now with a July start. This is a project-based hire with the option to extend if it is a good match. Submit your CV and we’ll reach out promptly.

We’re seeking a middle to senior level Solidity Developer to join a team of fierce and fun Serokellers.

Hiring Process Overview: We invite candidates to the HR screening as the first step. Next, we conduct a technical interview with those whose profiles align with our requirements. Successful candidates will receive an offer.

Requirements:

• Fluency with Ethereum or another EVM-based blockchain ecosystem
• 2+ years in software development
• 1+ years experience writing, testing, and deploying Solidity contracts
• Hands-on experience with Hardhat, Foundry, Truffle, or Remix for development, testing, and debugging, including transaction submission, data retrieval, and key management
• Understanding of security issues and best practices for Ethereum and De-Fi applications
• Knowledge of popular token standards such as ERC-20, ERC-721, and ERC-1155
• Experience developing and integrating decentralized applications, both backend and frontend
• Basic understanding of cryptography primitives: public/private keys, signing, encryption, hashing
• Knowledge of fundamental algorithms and data structures like hash tables, binary search trees, DFS, quicksort
• Strong coding practices, including clean code structure, use of git, pull requests, and code review
• Fluent English, strong communication and collaboration skills
• Comfortable with daily stand-ups and asynchronous updates
• Self-driven, proactive, teamwork-oriented, curious and inclusive mindset
• Full-time commitment, around 140–160 hours per month
• Comfortable overlapping with team time zones from UTC 0 to UTC -8

It will be a significant plus if you have:

• Knowledge of TypeScript, Haskell, Rust, or OCaml
• Experience conducting security audits and identifying vulnerabilities
• Understanding of computer networks, HTTP, TCP/IP stack, and data synchronization models used in modern service APIs
• Familiarity with build/deploy automation tools and CI/CD systems such as Docker, Nix, Kubernetes

Responsibilities:

• Create and implement secure and efficient Solidity contracts, ensuring scalability, reliability, and maintainability
• Integrate contracts with EVM blockchain networks, often involving backend or frontend work
• Review and audit code
• Develop and execute unit tests, integration tests, and end-to-end tests
• Write detailed documentation for code, including design specs, user guides, and API documentation
• Stay updated on the latest developments in Solidity, Ethereum, and EVM-related technologies, cryptographic methods, and relevant programming languages
• Optimize code performance and gas efficiency
• Implement and enforce security best practices to protect contracts from common vulnerabilities
• Provide ongoing support and maintenance for deployed applications, addressing user-reported issues and bugs

We offer:

• Competitive salary.
• Engaging international projects.
• Participation in leading global conferences.
• International and multicultural teams.
• Fully remote work with flexible hours.
• Ability to take time off as needed.
• Investment in career and professional growth, with potential for wage increases.
• Mentoring and training programs.
• Opportunity to contribute to a leading functional programming blog.
• Therapy sessions for well-being support.

By joining Serokell, you’ll become part of a warm community of ingenious engineers, computer scientists, designers, marketing experts, and other inventive minds. You’ll work on ambitious projects building the next generation of computer software, explore creative initiatives unhindered by bureaucracy, and enjoy our vibrant Slack channels—ranging from #music to #philosophyandtears (did we mention the massive custom emoji set?).

Stay in the loop.

Follow @raikucom on Twitter for product updates, engineering deep dives, and a closer look at how we’re building the future of blockspace.

About Raiku

Raiku is reengineering blockchain infrastructure from first principles to make global digital markets as precise and dependable as physical systems. Built on Solana, our platform delivers deterministic execution, guaranteed inclusion, and low-latency performance—solving the foundational failures that cause transactions to miss, trades to revert, and systems to collapse under pressure. By placing high-performance compute close to where transactions happen and coordinating execution through our advanced scheduling engine, Raiku empowers developers to build scalable, high-performance applications—and gives institutions the reliability and control they demand. We believe financial infrastructure should behave like physics: fast, reliable, and predictable—every time, without exception.

Research Engineer (Solana/Rust)

We’re seeking a passionate Research Engineer to drive protocol-level innovation on Solana. As the ideal candidate, you’ll combine deep technical expertise with scientific curiosity to:

• Lead technical discovery initiatives focused on Solana’s runtime, consensus, scheduler, and networking layers
• Conduct performance modeling and develop validator-centric architecture solutions
• Identify and address complex edge cases in transaction handling across production environments
• Translate research findings into actionable protocol design improvements

You’ll collaborate directly with our CEO, CTO (your manager), protocol architects, and key Solana ecosystem contributors to shape validator economics and transaction lifecycle guarantees across the Raiku stack.

Key Responsibilities

• Analyze and model Solana’s core architecture — deeply understand and document Solana’s runtime, scheduler, consensus, Turbine/Gossip, and transaction pipeline, with emphasis on edge cases under network stress or validator misbehavior.
• Lead internal research on validator economics and incentive alignment — explore impacts of Raiku’s slot marketplace, Ahead-of-Time (AOT) block auctions, and inclusion guarantees on validator profitability and slashing risks (e.g. under SIMDs 0096, 0123, 0212, 0228).
• Design bandwidth and blockspace pricing models — define and simulate pricing mechanisms for Raiku’s primary and secondary slot markets, ensuring validator rewards and application inclusion needs are economically aligned.
• Prototype system-level experiments across the Raiku and Solana stack — evaluate performance, liveness, and correctness when integrating Raiku’s ackermann-node and sidecar into Solana validator clients (e.g. Agave, Jito).
• Develop proofs-of-concept for transaction lifecycle primitives — such as pre-confirmations, slot reservations, and proof streaming for large bundled state transitions.
• Research and benchmark global account models — test interaction models across multiple VMs (e.g. SVM, EVM, MOVE) and assess state determinism and composability in high-throughput environments.
• Contribute to the design of Raiku’s protocol-level mechanisms — including builder commitments, proposer formats, MEV mitigation strategies, and slot slashing logic under failure modes.
• Author technical deep dives, simulations, and RFCs — serve as a knowledge base for both internal and external stakeholders across Raiku’s validator, capital, and app layers along with wider engineering and marketing teams.
• Collaborate with external researchers and validators — especially those running testnet sidecars or participating in bandwidth resale to ensure safe and performant mainnet integration.

Preferred Qualifications

• Technical background with strong system-level experience
• Proven open-source engineering background, evidenced by contributions to major blockchain or distributed systems repositories — ideally within the Solana ecosystem.
• Involvement in protocol research, MEV, performance tuning, or client implementations
• Experience designing proofs-of-concept for novel execution or slot-inclusion logic
• Familiarity with zero-knowledge proof systems and state settlement patterns
• Active presence in relevant research circles, Discords, or open-source forums

What We’re Looking For

• 3+ years of experience working with Rust in production (preferably in core systems or blockchain contexts)
• Deep familiarity with Solana’s source code and protocol-level architecture (runtime, scheduler, consensus, networking)
• Demonstrated ability to reason through complex distributed systems
• Experience modeling and explaining performance bottlenecks in real-world validators
• Ability to read protocol proposals and specs and convert them into actionables (e.g. implementation paths, test harnesses, edge case coverage)
• A deep design philosophy focused on deterministic execution and reliable system behavior
• Strong communication skills and clarity in technical writing

What We Offer

• A chance to join a category-defining protocol team pushing the frontier of Solana infrastructure
• Token upside and a key role in shaping Raiku’s ecosystem footprint
• Remote-first team with async workflows, a high ownership culture, and deep technical curiosity
• Competitive salary, token allocation, and performance-based bonuses
• Budget for travel, ecosystem events, and home office setup

Gnosis is looking to hire a Summer Internship (Ethereum Ecosystem) to join their team. This is an internship position that can be done remotely anywhere in EU or India time zone +/- 3 hours.

Gnosis - We're building the infrastructure for the open-internet.

About Us

Re7 Capital is a London-based cryptoasset investment firm, leveraging our deep crypto network and proprietary data infrastructure to drive investment decisions across various DeFi and alpha strategies. Through Re7 Labs, we also collaborate with leading projects and blockchains to design DeFi ecosystems, provide on-chain risk curation, and deliver vault management services.

Our team combines expertise in investment management, data science, and crypto. To support our continued growth, we are seeking a motivated Full Stack Web Developer to join our engineering team. Reporting directly to the Head of Technology, you will take full ownership of our dApps, used to interact with our vault smart contracts.

Responsibilities

• Develop and maintain responsive, user-friendly front-end interfaces using React,Next.js, Vue or similar frameworks.
• Integrate EVM and non-EVM smart contracts using libraries like Ethers.js, Web3.js, Viem, Starknet.js and wallet connectors such as ConnectKit and wagmi.
• Support wallet integrations including MetaMask, Argent X, and Braavos.
• Design and implement scalable back-end services and APIs using Node.js, Express, and related technologies.
• Collaborate with blockchain engineers to interact with smart contracts and on-chain data.
• Implement best practices for security, including wallet connectivity, transaction handling, and protection of user data.
• Deploy and maintain applications on AWS (EC2, Elastic Beanstalk, S3, CloudFront), with a focus on scalability, logging, and monitoring.
• Set up and manage CI/CD pipelines using GitHub Actions or similar tools to automate testing and deployment workflows.
• Deploy applications to decentralized hosting environments (e.g., IPFS, Fleek) as well as cloud-based infrastructure.
• Ensure performance optimization through CloudFront caching, invalidation strategies, and SSL/TLS management.
• Contribute to Whisk infrastructure and security, ensuring resilient and secure production deployments.
• Work closely with designers, PMs, and cross-functional teams to define and deliver new DeFi features and enhancements.
• Implement and maintain interactive UI elements and animations using modern HTML/CSS (including transitions, keyframes, and responsive styling) within PHP-based web applications.

• Proficiency in JavaScript/TypeScript and PHP.
• 5+ years of experience in web development, including 3+ years in dApp development.
• Hands-on experience integrating and interacting with both EVM and Non-EVM smart contracts.
• Familiarity with ConnectKit, wagmi, and Viem libraries for modern wallet connection flows.
• Experience deploying web applications on AWS using services like Elastic Beanstalk, EC2, and S3, with understanding of environment config, auto-scaling, and CloudWatch logging.
• Proficient in setting up CI/CD pipelines using GitHub Actions (or similar tools), including artifact packaging and automated deployment.
• Working knowledge of CloudFront, CDN behavior, cache invalidation, and AWS Certificate Manager.
• Familiarity with IAM roles, security groups, VPC setup, and cloud infrastructure security best practices.
• Experience with front-end frameworks (React, Next.js, Vue, etc.)
• Comfortable working in Linux environments and using Git for version control.
• Understanding of DeFi concepts and major protocols (e.g., Uniswap, Aave, Curve).
• Awareness of and ability to support Whisk infrastructure and security requirements.
• Basic knowledge of HTML5, CSS3, and animation techniques (e.g., transitions, keyframes, scroll-triggered effects), with the ability to integrate them into PHP-rendered views or templating engines.

• A dynamic, collaborative, and highly technical work environment.
• Opportunities for professional growth in a rapidly evolving industry.
• Remote-first setup with regular opportunities to meet the team in person.
• Competitive compensation package.

ApplicationProcess

• Your resume
• A cover letter explaining your interest in the role
• Your response to the following technical challenge:

Challenge:

Apply Now:

Key Responsibilities:

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

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

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

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

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

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

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

Apply Now:

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

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

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

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

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

Nice to haves:

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

Job #: GPBE06US

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

#LI-Remote

Apply Now:

Caiz

Revolutionizing Islamic Finance with Blockchain Technology

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

Look no further than Caiz – The First Islamic Ecosystem Built on Blockchain

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

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

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

Why to Join Caiz?

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

Tasks

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

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

Responsibilities:

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

Requirements

Experience:

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

Preferred Skills

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

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

Language Requirements: Fluent in English

Benefits

Benefits at Caiz:

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

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

Apply Now:

Apply Now:

Apply Now:

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About GFX Labs

At Oku, we aim to close the gap between the CeFi and DeFi trading experiences. It is no mistake that 95% of crypto trading occurs on centralized platforms like Binance and Coinbase since their organizations have spent substantially more time and resources investing in their trading interface, while DeFi has primarily been focused on infrastructure and protocols for the last several years.

However, that is going to change soon. While CeFi organizations enjoy their Web2 stack, a Web3 company like Oku can leverage the composability of the DeFi ecosystem and blockchain technology to offer a high-quality trading experience that will eventually be indistinguishable from CeFi and, in the long run, overcome their legacy systems. That is why Oku has 50+ partners in or supporting the app.

Oku initially started as a project within GFX Labs after they received a $1.6M grant from the Uniswap Foundation in October 2022 to build and launch a reimagined trading interface, analytics platform, and API for Uniswap v3. After ten months of development, Oku launched in July 2023, and since then, Oku has supported the DAO Uniswap’s efforts to expand across new blockchains.

Today, our primary feature is our smart order routing system, which integrates 12+ order routing systems to ensure all users find the best price possible. We have also adapted our order routing technology to offer a bridge aggregator with 11+ integrated bridges. Most recently, to close the CeFi/DeFi gap further, we added on/off-ramping with USD and EURO to our interface at an industry-low fee of free! Our other popular features include trustless onchain limit orders built directly on Uniswap v3, our position manager page for users who want to manage their LP positions, and our Uniswap v3 analytics.

Over the coming years, Oku will be expanding the scope of our offering and improving the quality of our user experience.

Why work at Oku?

Any firm can pay a high salary and offer good incentives (as will we), but most can’t offer interesting, challenging, and rewarding work.

We have something to prove. Our team is young and hungry. We like to move fast and make things. We know when to double down and when to cut our losses. We are going to make mistakes, and we are going to build a better product because of them. We don’t micromanage or have a huge team of product managers. We want self starters who take charge and solve problems.

We don’t care if you went to school, what grades you got, or your age. Show us what you have built, what problems you have solved, and what skills you have.

About the role

As a Software Engineer at Oku Trade, you’ll work alongside our engineering team to maintain and improve both our backend services and frontend applications. This role offers the opportunity to work on meaningful projects with real impact while growing your skills across our technology stack.

You’ll contribute to core components of our platform, including APIs, data processing routines, blockchain indexing, on-chain interactions across EVM chains, and React-based user interfaces. Working closely with senior engineers, you’ll have the space to implement improvements and tackle challenging problems that directly affect our users.

Key Responsibilities:

• Develop and improve backend APIs in Golang and Node.js that handle high-throughput blockchain data and serve real-time market information
• Work with EVM blockchain data, including parsing transaction logs, decoding smart contract events, and maintaining indexing services that track on-chain activity
• Enhance our React frontend applications, focusing on performance optimization and user experience improvements for DeFi interfaces
• Implement features across both backend and frontend, ensuring seamless data flow from blockchain to user interface

You might be great for this role if you have:

• 2+ years of Golang development experience with strong backend engineering skills
• Hands-on experience with Web3 development, particularly working with EVM chains and understanding concepts of transaction indexing, MEV, and DeFi protocols
• Strong React skills with experience building responsive, data-heavy interfaces
• Enthusiasm for diving deep into complex systems and learning new technologies
• Desire to grow your skills by working on challenging problems across the stack

What you’ll do at Oku.Trade:

• Work on critical infrastructure that processes millions of blockchain transactions daily while implementing new features to expand our capabilities
• Contribute to improving our blockchain indexing architecture and API design as we scale to support more chains and protocols
• Collaborate with a small team where your work has a visible impact on the product
• Gain experience with production systems that thousands of users rely on daily

We’d love to hear from you if you’re excited about:

• Growing your engineering skills by working on real-world blockchain challenges
• Contributing to systems that make DeFi more accessible and understandable
• Working in a collaborative environment where you can learn from experienced engineers while making meaningful contributions
• Building your expertise at the intersection of traditional web development and blockchain technology

Tools we are using today:

• Golang, React, Node, Figma
• Postgresql, Temporal, NATS, Clickhouse
• Gitlab and Github
• DigitalOcean, fly.io, Kubernetes, KNative, Pulumi

Wormhole Foundation Our mission is to empower passionate people in the research and development of blockchain interoperability technologies. We support teams building secure, open-source, and decentralized products within the Wormhole ecosystem. Developer Experience Engineer As a Developer Experience Engineer at the Wormhole Foundation, you will own and elevate the developer documentation and onboarding experience for Wormhole Integrators. This is a key role on our Integrations team, where you'll directly impact how developers engage with our platform and build on top of it. In this role you will take ownership of our developer documentation, create tutorials, demos, and tooling to support developers end-to-end, and provide hands-on guidance to integrators building with Wormhole. What You’ll Do:

Fully own and manage Wormhole documentation  Define and maintain content standards, structure, and workflows for all documentation Collaborate with engineering and product teams to keep docs accurate and up-to-date Analyze developer pain points, usage data, and improve the onboarding experience accordingly Build tutorials, demos, and tooling to improve the integration experience Support external teams and Wormhole integrators with technical resources Lead feedback loops with internal and external developers and integrators to continuously improve the experience Other special projects as assigned

Who You Are:

You have a strong background in developer relations, technical writing, solutions engineering, and/or developer tooling Highly technical, ideally with a strong understanding of multichain protocols and DeFi Domain expertise in one or multiple blockchain platforms (e.g. EVM, SVM, etc.) A strong communicator and collaborator; experienced in working across product, engineering, business development, marketing, and leadership teams. You’re comfortable owning documentation end to end — both content and process You understand how developers think and where they get stuck You’ve worked closely with engineering teams and can translate complex concepts clearly Comfortable running internal discovery efforts and aligning technical direction with business goals. Deep understanding of developer workflows from onboarding to debugging. Passion for supporting developers, both internally and externally. Highly motivated, creative, and results-driven self-starter with a passion for crypto and developer engagement. Excited to work in a results-driven, meritocratic work environment. Enjoy working with a remote-first team, but are available for your core working hours to be between 10:00am to 6:00pm ET

Even if you don’t meet every qualification listed, we still encourage you to apply if you believe you’re a strong fit for the role!  

Apply Now:

Wormhole Foundation

Our mission is to empower passionate people in the research and development of blockchain interoperability technologies. We support teams building secure, open-source, and decentralized products within the Wormhole ecosystem.

Developer Experience Engineer

As a Developer Experience Engineer at the Wormhole Foundation, you will own and elevate the developer documentation and onboarding experience for Wormhole Integrators. This is a key role on our Integrations team, where you'll directly impact how developers engage with our platform and build on top of it. In this role you will take ownership of our developer documentation, create tutorials, demos, and tooling to support developers end-to-end, and provide hands-on guidance to integrators building with Wormhole.

What You’ll Do:

• Fully own and manage Wormhole documentation
• Define and maintain content standards, structure, and workflows for all documentation
• Collaborate with engineering and product teams to keep docs accurate and up-to-date
• Analyze developer pain points, usage data, and improve the onboarding experience accordingly
• Build tutorials, demos, and tooling to improve the integration experience
• Support external teams and Wormhole integrators with technical resources
• Lead feedback loops with internal and external developers and integrators to continuously improve the experience
• Other special projects as assigned

Who You Are:

• You have a strong background in developer relations, technical writing, solutions engineering, and/or developer tooling
• Highly technical, ideally with a strong understanding of multichain protocols and DeFi
• Domain expertise in one or multiple blockchain platforms (e.g. EVM, SVM, etc.)
• A strong communicator and collaborator; experienced in working across product, engineering, business development, marketing, and leadership teams.
• You’re comfortable owning documentation end to end — both content and process
• You understand how developers think and where they get stuck
• You’ve worked closely with engineering teams and can translate complex concepts clearly
• Comfortable running internal discovery efforts and aligning technical direction with business goals.
• Deep understanding of developer workflows from onboarding to debugging.
• Passion for supporting developers, both internally and externally.
• Highly motivated, creative, and results-driven self-starter with a passion for crypto and developer engagement.
• Excited to work in a results-driven, meritocratic work environment.
• Enjoy working with a remote-first team, but are available for your core working hours to be between 10:00am to 6:00pm ET

Even if you don’t meet every qualification listed, we still encourage you to apply if you believe you’re a strong fit for the role!

Apply Now:

The Monad Foundation is a team of dedicated ecosystem and community builders who are on a mission to massively grow the impact of decentralized tech. We believe that the Monad blockchain--the performant and parallel EVM Layer 1--will help decentralized apps eat the world.

The Role

We're seeking a passionate and experienced Developer Relations Engineer to spearhead the growth and support of Monad's mobile developer community. You'll be at the forefront of empowering ambitious builders, providing them with the essential tools, resources, and guidance to create best-in-class mobile applications within the innovative Monad ecosystem. 

What You Will Do

• Champion Mobile Development on Monad by developing and delivering high-quality educational resources specifically tailored for mobile developers (e.g. blog posts, videos, tooling, tutorials, documentation, sample code, guides)

• Evangelize the power and potential Monad’s technology to developers with clear communication at conferences and hackathons

• Lead and support impactful initiatives such as mobile-focused hackathons, specialized builder programs, and industry events to foster a vibrant and collaborative developer community

• Actively grow and manage Monad's developer communities (e.g., Discord, Telegram, forums) by fostering a welcoming and supportive environment for mobile developers

• Keep abreast of the latest trends and best practices in mobile development (iOS and Android) and the broader Web3 space to ensure our resources and strategies remain cutting-edge

Who You Are

• 2+ years of proven experience in developer relations, with a strong interest and knowledge of the web3 ecosystem

• 3+ years of experience as a mobile developer, in Android or iOS

• Strong understanding of technical concepts, programming languages, and development workflow

• Technically opinionated on what it takes to ship a dapp on mobile

• Prior app development experiencDDevee, as evidenced with personal and professional projects (e.g. Github)

• Technical writing experience

• Degree in Computer Science/Engineering or equivalent experience

Personal Attributes

• Low ego

• Independence

• Organizational skills

• Extremely strong work ethic

• A desire to bring people together

• Enthusiasm for Monad’s mission of helping decentralization scale

Nice to Have

• Web3 experience

• Public speaking or teaching experience

• Hackathon circuit experience, as a participant!

• Existing relationships with builder communities, incubators, or university blockchain groups

Why Work with Us

• Challenging problems. You’ll work on extremely challenging problems with massive impact.

• Huge opportunity. The Ethereum Virtual Machine (EVM) standard is ubiquitous, but existing EVM-compatible chains are slow and bandwidth-constrained. Monad’s core innovations offer developers the best of both worlds (portability and performance) and are a game-changer for mass user adoption in crypto.

• The right team. You’ll be part of an exceptional and highly-motivated team

• Culture. We’re a lean team working together to achieve very ambitious goals. We are united in our culture of collaboration, low ego, and high-quality output. As an early member of our team, you’ll help continue to shape our culture.

Salary and Benefits

Benefits for full-time employees may include medical, dental, and vision insurance (100% coverage for employees); generous paid time off; paid parental leave; and 10 company-observed holidays.

Apply Now:

The Monad Foundation is a team of dedicated ecosystem and community builders who are on a mission to massively grow the impact of decentralized tech. We believe that the Monad blockchain--the performant and parallel EVM Layer 1--will help decentralized apps eat the world.

The Role

We are looking for a Developer Relations Engineer to focus on growing and supporting Monad’s early builder community. You will unlock a community of ambitious builders by giving them the tools and resources to build successful apps in the Monad ecosystem.

What You Will Do

• Design, develop, and maintain high-quality, production-ready sample applications and reference implementations on Monad. These projects will serve as the benchmark for best practices, demonstrating optimal architecture, security, and user experience for other developers

• Create and distribute high-impact educational resources (e.g., insightful blog posts, engaging videos, practical tooling derived from your builds, comprehensive tutorials, clear documentation) that showcase best practices and efficient workflows, using your exemplary apps as case studies

• Share your expertise, learnings, and the "why" behind your applications with the developer community through presentations at conferences, workshops, webinars, and in-depth code walkthroughs

• Translate your hands-on building experiences and technical insights into actionable feedback for our product and engineering teams, directly influencing the Monad roadmap and tooling

• Leverage your deep development experience to create guides and architectural blueprints that offer strong, well-reasoned opinions on the best ways to build robust and scalable applications on Monad

Who You Are

• 2+ years in developer relations at a web3 company

• 2+ years of software development experience, marked by a strong portfolio of shipped applications where you played a key role in design and implementation. Throughout these years, you have cultivated and consistently demonstrated a passion for writing clean, maintainable, well-documented code, and instinctively architect solutions designed to serve as robust and clear examples for other developers.

• You profoundly understand the challenges developers face and are driven to create solutions, code examples, and resources that genuinely improve their productivity and the quality of their work

• You possess a natural curiosity for trying out different development tools, frameworks, and platforms, and can critically assess their impact on the development lifecycle and final product

• You've formed strong, evidence-based opinions on what makes a great developer experience and robust application architecture, and can effectively communicate how tools and platforms can be improved

• Prior app development experience, as evidenced with personal and professional projects (e.g. Github, Hackathons)

• Degree in Computer Science/Engineering or equivalent experience

Personal Attributes

• Low ego

• Independence

• Organizational skills

• Extremely strong work ethic

• A desire to bring people together

• Enthusiasm for Monad’s mission of helping decentralization scale

Nice to Have

• Public speaking or teaching experience

• Hackathon circuit experience, as a participant!

• Existing relationships with builder communities, incubators, or university blockchain groups

Why Work with Us

• Challenging problems. You’ll work on extremely challenging problems with massive impact.

• Huge opportunity. The Ethereum Virtual Machine (EVM) standard is ubiquitous, but existing EVM-compatible chains are slow and bandwidth-constrained. Monad’s core innovations offer developers the best of both worlds (portability and performance) and are a game-changer for mass user adoption in crypto.

• The right team. You’ll be part of an exceptional and highly-motivated team

• Culture. We’re a lean team working together to achieve very ambitious goals. We are united in our culture of collaboration, low ego, and high-quality output. As an early member of our team, you’ll help continue to shape our culture.

Salary and Benefits

Benefits for full-time employees may include medical, dental, and vision insurance (100% coverage for employees); generous paid time off; paid parental leave; and 10 company-observed holidays.

Apply Now:

The Coinbase Developer Platform APIs are the easiest way for developers to get started with building crypto applications. Conceived by Coinbase CEO Brian Armstrong, these APIs enable those with no prior knowledge of crypto to begin sending and receiving crypto in as little as 30 seconds. A top priority of the Coinbase Developer Platform (CDP), the CDP APIs encapsulate some of the most cutting-edge technologies in crypto by externalizing Coinbase’s internal services, built over more than a decade of experience. The CDP APIs combine custodial and non-custodial wallets into one clean abstraction, making interactions with the blockchain simple and painless.

The CDP API team owns both server-side APIs and client-side libraries across different languages. The team seeks a full-stack engineer who is passionate about all aspects of excellent developer experiences: authoring clear and informative documentation, building compelling sample applications, interacting directly with customers to incorporate feedback, architecting delightfully simple SDKs, etc. The engineer must be comfortable operating in both frontend and backend codebases, fluent across a variety of programming languages, and demonstrate both high code velocity and quality simultaneously. The CDP API team consists of some of the most prolific and tenured software engineers at Coinbase, and is excited to ship a game-changing set of APIs and SDKs at breakneck speed.

What you’ll be doing:

• Design, develop, and maintain scalable, secure, and high-performance backend systems for the CDP APIs using Go and Javascript
• Define and maintain clean and conformant HTTP REST API definitions using OpenAPI specifications
• Design, develop, and maintain ergonomic, open-source SDKs to interact with the CDP APIs using Ruby, Typescript, Go, Python, and Java
• Author, publish, and maintain clear and concise documentation, including quickstart and how-to guides, to increase adoption of the Platform APIs and SDKs
• Develop secure and scalable key management systems, packaged as Docker images, to enable crypto wallet functionality across a range of custodial configurations (e.g. self-custodial MPC)
• Work closely with many different teams at Coinbase to externalize their backend services through the Platform APIs, ensuring consistency of concepts, >
• Interface directly with customers to collect their feedback and iteratively improve the CDP APIs and SDKs
• Build compelling sample applications end-to-end using the CDP APIs and SDKs to demonstrate their value and pressure-test the developer experience
• Troubleshoot and debug complex fullstack issues, ensuring stability, reliability, and security
• Participate in code reviews and provide constructive feedback to maintain high code quality standards

What we look for in you:

• 5+ years of experience in both backend and frontend software development
• Mastery of Go and JavaScript; experience with Ruby, TypeScript, Python, and Java is a plus
• Excellent verbal and written communication skills, with an eye for detail and a passion for clear, comprehensive developer documentation
• Strong understanding of crypto wallets, including key management, cryptography, and blockchain protocols (e.g. EVM)
• Proven track record of designing, developing, and shipping high-quality, ergonomic client-side libraries and SDKs
• Strong understanding of distributed systems, microservices architecture, and event-driven architectures
• Experience with databases (PostgreSQL, MySQL, MongoDB) and caching systems (Redis, Memcached)
• Solid knowledge of RESTful API design principles and experience with API development and integration
• Familiarity with AWS and containerization technologies like Kubernetes
• Understanding of security best practices and experience with implementing secure coding practices for financial 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 #: GDFS05NA

#LI-Remote

Apply Now:

Location: Remote

🚀 About Technance

Technance is a crypto-native financial services company enabling secure access to digital asset infrastructure for institutions worldwide. From regulatory-grade custody to trading and compliance tools, we design and operate systems that bridge traditional finance and blockchain ecosystems.

We operate globally with a remote-first team, combining strategic expertise with technical rigor to build secure, scalable crypto infrastructure. If you’re passionate about blockchain architecture, DeFi protocols, and decentralized systems—join us to shape the core layer of institutional crypto adoption.

🔧 About the Role

We’re seeking a Senior Blockchain Developer to help design and implement smart contract systems, protocol integrations, and core blockchain infrastructure. You’ll work on a variety of systems ranging from token management frameworks and on-chain trading logic to custody and staking infrastructure.

This role is ideal for engineers who understand both the mechanics of blockchains and the requirements of secure financial systems.

✅ What You’ll Do

• Design and build smart contracts for Ethereum and EVM-compatible chains
• Integrate blockchain protocols into backend systems and trading platforms
• Contribute to the architecture and security of on-chain and off-chain interactions
• Build tooling for transaction automation, gas optimization, and risk controls
• Collaborate with backend, infrastructure, and security teams on system-wide designs
• Stay current on blockchain protocol updates, EIPs, L2s, and DeFi trends

📌 What We’re Looking For

• 4+ years of experience in software engineering, with 2+ years in blockchain development
• Strong experience in Solidity, smart contract development, and Ethereum toolchains (e.g., Hardhat, Foundry, Ethers.js)
• Deep understanding of EVM, gas efficiency, and contract security patterns
• Experience with backend systems using Go, TypeScript, or Python
• Familiarity with multisig wallets, oracles, bridges, staking mechanisms, and DeFi integrations
• Knowledge of blockchain-specific risks and ability to mitigate them through smart architecture
• Ability to thrive in a fully remote, async-first team culture

🎁 What We Offer

• 💸 Stable monthly payments in USDT
• 🌐 Fully remote role with global flexibility
• 🕒 Flexible work hours and async workflows
• 🔐 Work on high-impact, security-critical infrastructure
• 🧱 Be part of building the foundation for regulated institutional DeFi
• 🛠 Flat, engineering-led team with ownership over architecture and tooling
• 🚀 Opportunity to innovate in a fast-moving, blockchain-first environment

Apply Now: