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Ready to be pushed beyond what you think you’re capable of?
At Coinbase, our mission is to increase economic freedom in the world. It’s a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform — and with it, the future global financial system.
To achieve our mission, we’re seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the financial system. We want someone who is eager to leave their mark on the world, who relishes the pressure and privilege of working with high caliber colleagues, and who actively seeks feedback to keep leveling up. We want someone who will run towards, not away from, solving the company’s hardest problems.
Our work culture is intense and isn’t for everyone. But if you want to build the future alongside others who excel in their disciplines and expect the same from you, there’s no better place to be.
While many roles at Coinbase are remote-first, we are not remote-only. In-person participation is required throughout the year. Team and company-wide offsites are held multiple times annually to foster collaboration, connection, and alignment. Attendance is expected and fully supported.
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 Developer Experience, we organize into “pods” that focus on different specializations. The “CI” pod builds and operates state-of-the-art version control and continuous integration infrastructure for our engineers. We manage one of the largest k8s clusters at Coinbase and have built a custom controller to manage our workload efficiently. We are making a bold strategic move to migrate our source code into the cloud.
What you’ll be doing (i.e. job duties):
- Build, improve, and operate backend developer productivity infrastructure services and systems.
- Design scalable, fault-tolerant solutions to novel problems with modern cloud technology and industry best practices.
- Work with engineers and leadership to turn our product and technical vision into a tangible roadmap every quarter.
- Provide stellar customer support to our internal engineers.
What we look for in you:
- You have at least 5+ years of experience in software engineering.
- You’ve designed, built, scaled, and operated large scale, high throughput infrastructure.
- You write high-quality, well-tested code to meet the needs of your customers.
- Strong problem solving skills and ability to identify problems, determine their root cause, and see them through to solution.
Nice to Haves:
- Golang, Ruby, AWS
- Prior experience with building on and operating GitHub/GitHub Actions
Job #: GPBE05US
*Answers to crypto-related questions may be used to evaluate your onchain experience
#LI-Remote
Please be advised that each candidate may submit a maximum of four applications within any 30-day period. We encourage you to carefully evaluate how your skills and interests align with Coinbase's roles before applying.
Commitment to Equal Opportunity
Coinbase is committed to diversity in its workforce and is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, gender, national origin, age, disability, veteran status, sex, gender expression or identity, sexual orientation or any other basis protected by applicable law. Coinbase will also consider for employment qualified applicants with criminal histories in a manner consistent with applicable federal, state and local law. For US applicants, you may view the Know Your Rights notice here. Additionally, Coinbase participates in the E-Verify programin certain locations, as required by law.
Coinbase is also committed to providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process, please contact us at accommodations[at]coinbase.com to let us know the nature of your request and your contact information. For quick access to screen reading technology compatible with this site click here to download a free compatible screen reader (free step by step tutorial can be found here).
Global Data Privacy Notice for Job Candidates and Applicants
Depending on your location, the General Data Protection Regulation (GDPR) and California Consumer Privacy Act (CCPA) may regulate the way we manage the data of job applicants. Our full notice outlining how data will be processed as part of the application procedure for applicable locations is available here. By submitting your application, you are agreeing to our use and processing of your data as required. For US applicants only, by submitting your application you are agreeing to arbitration of disputes as outlined here.
Apply Now:
Re7 Capital
Remote
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.
We are seeking a talented Middle / Senior Ethereum Developer with a deep understanding of financial markets and experience in trading to join our client team.
Arkis is a DeFi prime brokerage protocol for institutional borrowers and lenders to interact in a zero-trust environment. Lenders get decentralized, secure credit provision vehicles with whitelisting, guaranteed repayment flow, and the maintenance of benefits from over-collateralization due to control over assets within the ecosystem.As an Ethereum Developer, you will be responsible for developing and maintaining smart contracts and decentralized applications (DApps) on the Ethereum blockchain. Your expertise in financial markets, combined with your knowledge of key protocols such as Pendle, CurveFi, 1inch, AaveV3, Morpho, will be instrumental in creating innovative solutions for their platform.
Your future responsibilities:
Design, develop, and deploy smart contracts and DApps on the Ethereum blockchain.
Collaborate with cross-functional teams to gather requirements and implement efficient and secure solutions.
Stay up-to-date with the latest developments in Ethereum and decentralized finance (DeFi) to leverage cutting-edge technologies and protocols.
Integrate and interact with various DeFi protocols such as Pendle, CurveFi, 1inch, AaveV3, Morpho
Write clean, well-documented, and efficient code to ensure the reliability and scalability of our applications.
Conduct thorough testing and debugging to identify and resolve any issues or vulnerabilities.
Optimize smart contracts and DApps for gas efficiency and cost-effectiveness.
Continuously monitor and improve the performance and security of the Ethereum-based systems.
Provide technical guidance and mentorship to junior developers when required.
Requirements:
Strong proficiency in Solidity programming language and experience with Ethereum development tools (Foundry, Hardhat etc).
In-depth knowledge of financial markets, trading strategies, and investment principles.
Familiarity with key DeFi protocols such as Pendle, CurveFi, 1inch, AaveV3, Morpho.
Experience in designing and implementing secure smart contracts and DApps.
Solid understanding of blockchain fundamentals and Ethereum’s architecture.
Knowledge of other blockchain platforms (Ethereum, Base etc.).
Proficient in using Git for version control and collaborative development.
Ability to work independently and in a team environment, collaborating effectively with other developers, designers, and stakeholders.
Strong problem-solving skills and attention to detail.
Excellent communication and documentation skills.
Preferred Qualifications:
Knowledge of privacy-preserving technics & modern cryptography
Experience of using protocols for applied cryptography (zkSNARK, zkSTARK, etc)
Familiarity with automated testing frameworks for smart contracts
-
Contributions to open-source projects in the Ethereum ecosystem
Interview stages:
Interview with a recruiter
Interview with a Tech lead
Interview with a CTO on general technical topics
Сulture fit interview
We’ll review your CV and everything you have sent us within five working days. If your background meets our needs — we’ll set up a call to get to know each other better. Otherwise, we aren’t quite ready for you at this moment. But no worries — our journey has just started, and we’d love to stay in touch as our team grows and more opportunities emerge. We wish you the best of luck with your aspiration.
Apply Now:
📌Backend Developer – Java, Spring & Kafka (Full-time Contract, Remote) Kick off your next career move with Launchpad! We're looking for a technically curious backend developer ready to make an impact in a collaborative, clean-code-driven environment. If you’re passionate about building scalable services, exploring domain-driven design, and working on distributed systems, this might be the opportunity for you.
🗓 Start date: August 2025📆 Contract type: Contractor, indefinite🌐 Work hours: Monday to Friday, 7.30 to 16.30 PST - 100% Remote
🛠️ What You’ll Be Doing
Designing and implementing backend services in Java and Spring Boot to power scalable, high-performing systems
Applying Hexagonal Architecture and clean code principles to ensure long-term maintainability and modularity
Building and consuming RESTful APIs, focusing on versioning and developer-friendly design
Integrating asynchronous processes using Apache Kafka in a distributed microservices architecture
Collaborating with infrastructure engineers to deploy services using Terraform on Microsoft Azure
Participating in code reviews and applying software craftsmanship in a team that values continuous learning
✅ What You Need to Succeed Must-haves
2–4 years of experience as a Java backend developer
Solid hands-on experience with the Spring Boot ecosystem (e.g., Spring Web, Spring Data JPA, Spring Security)
Proven ability to design, consume, and document RESTful APIs
Comfort working with relational databases such as MySQL or PostgreSQL
Confident writing and maintaining unit and integration tests
Experience working with Git and following modern version control workflows
Strong communication and collaboration skills in distributed teams
Nice-to-haves
Familiarity with Hexagonal Architecture (Ports & Adapters)
Experience applying Domain-Driven Design (DDD) and CQRS
Knowledge of Apache Kafka for event-driven architectures
Exposure to non-relational databases like Redis
Experience deploying services on Azure using Terraform
🧭 Our Recruitment Process Here’s what to expect from our candidate-friendly interview process:
Initial Interview – 60 minutes with our Talent Acquisition Specialist
Culture Fit – 30 minutes with our Team Engagement Manager
Technical Interview – 60 minutes with the Team and Hiring Manager, general overview of your expertise
Final Interview - 60 minutes with the Team and Hiring Manager, exploring your technical and problem-solving skills
🌟 Why Join Launchpad? We believe that great work starts with great people. At Launchpad, we offer:
💻 Fully remote work with hardware provided
🌎 Global team experience with clients in Northamerica
💸 Competitive USD compensation
📚 Training and learning stipends
🌴 Paid Time Off (vacation, personal, study)
🧘♂️ A culture that values autonomy, purpose, and human connection
✨ Ready to make your mark? Apply now and be part of something exciting.
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.
- 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
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.Apply Now:
Company Description
Lume is a DeFi strategy layer and user experience platform that makes crypto investing effortless, automated, and accessible to everyone.
We are reimagining how people interact with DeFi. We're building the most user-friendly platform for strategy-driven trading, perpetuals, token discovery, and wallet infrastructure — all on Solana. Think Robinhood x Stripe, rebuilt for crypto-native users and degens.
If you’re passionate about consumer fintech, next-gen UX, and scaling DeFi to the masses—we’d love to connect.
As a mobile developer, you will be responsible for developing and maintaining applications, integrating APIs, and ensuring a seamless user experience. When working on a cutting-edge finance app, you must be vigilant about securing user data and handling it cautiously.
Responsibilities
- Develop and maintain mobile applications using React Native, targeting both iOS and Android platforms.
- Write clean, maintainable, and efficient code following best practices.
- Work with native modules and third-party libraries to enhance app functionality.
- Collaborate with UI/UX designers to implement intuitive user interfaces.
- Optimize app performance and ensure smooth user experiences.
- Debug, troubleshoot, and resolve issues across platforms.
- Stay up to date with the latest industry trends and technologies.
Qualifications
- Proficiency in React Native with experience in building mobile applications.
- Strong knowledge of JavaScript (ES6+), and TypeScript is a plus.
- Experience with Redux, Context API, or any state management frameworks.
- Familiarity with RESTful and GraphQL APIs, third-party integrations, and backend communication.
- Experience developing applications with complex data visualizations and real-time interactive dashboards
- Proven experience building security-focused mobile apps, including features like biometric authentication, encrypted storage, and user data protection best practices.
- Knowledge of mobile development tools like Xcode, Android Studio, and debugging tools.
- Understanding of React Native performance optimizations and best practices.
- Experience with Git for version control.
- Familiarity with Agile development methodologies.
- Prior experience in publishing apps to the Google Play Store and the Apple App Store is a plus.
Nice to Have:
- Experience with Expo Tools.
- Blockchain Experience, especially in Web3
Company Culture and Values:
- Fully Remote: We operate as a fully remote company, allowing our team members to work from anywhere in the world.
- Commitment to Innovation: We are dedicated to pioneering technology and encourage our developers to explore and execute their innovative concepts.
- Learning from Mistakes: We view mistakes as valuable learning opportunities, fostering a culture of continuous improvement.
- Enhancing Expertise: Our primary objective is to enhance the expertise and market exposure of our team, providing growth opportunities.
- Work-Life Balance: We value the balance between work and personal life for our team members, promoting well-being and flexibility.
- Trust and Freedom: We trust our developers and hire those who share our commitment to the Lume vision, allowing them the freedom to take time off as needed.
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.
(A Master’s degree or equivalent experience in blockchain development is a plus.)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: