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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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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We are seeking a Lead Backend Engineer with a deep interest in DeFi and trading automation systems. The ideal candidate will be self-driven and have a proven track record in a leadership role within Web3. The ability to adapt to complex ideas, problem solve on the fly, and thrive in a fast paced startup environment is essential. You will play a crucial role in the project’s success by directing technical strategy, collaborating with founding team members, and proactively resolving backend system issues.

Our Tech Stack:

• Backend: Nest.js - Typescript
• Frontend: Next.js - Typescript
• Database: MongoDB
• Cloud platform: Digital Ocean / AWS
• Smart contracts: Solidity
• Additional: Git/GitHub, Docker, Ethers.js

Requirements:

• 5+ years of experience as a backend software engineer
• 2+ years developing applications on EVM-based blockchains
• 2+ years designing and engineering scalable Web APIs
• Experience and proficiency with Typescript / Node.js on server side
• Some familiarity with DevOps practices (docker, CI/CD, cloud platforms)
• Previous experience leading a cross functional team of 3 or more team members
• Strong written and verbal English communication skills

Nice to have:

• Smart contract development experience (EVM)
• Some frontend experience (Next.js, React)
• Experience building DeFi and user-facing trading applications
• Good understanding of Account Abstraction standards (ERC 4337 & 7579)
• Knowledge of intent-centric system architectures

Responsibilities:

• Continuously adapt and improve the product by shipping new features or improving current functionalities.
• Deploy scalable backend services and APIs.
• Troubleshoot technical issues to optimize performance.
• Conduct code reviews and ensure consistent product quality.
• Develop maintainable and well-documented code.
• Interact with a wide range of DeFi protocols, calling their smart contracts to extract specific data when necessary.
• Listen to token data via WebSockets, quoting tokens at varying rates, and using cron jobs to execute transactions at specified times or based on certain parameters for condition-driven trading.
• Collaborate and troubleshoot with partner protocols to identify the most effective ways to integrate their products or infrastructure.
• Be a project manager: establish priority driven plans for managing deadlines and key deliverables
• Communicate with the development team on a daily basis.
• Require that teammates provide clear and succinct updates to ensure tasks are completed on time and in alignment with development schedules.
• Deliberate with the founding team to effectively adapt high-level concepts into concrete development outcomes.

Who we are:

Hegemony Labs is an ambitious startup composed of DeFi natives, trend analysts, and technical experts. We are dedicated to delivering bleeding edge trading innovations for the betterment of Web3 at large. Funded and backed by notable VCs and angels.

What we are building:

Hedgemony is an intent-centric execution layer which blends multilayered aggregation services with AI-driven market insights to provide an enriched and unified on-chain experience. Our primary aim is to simplify DeFi interactions and empower traders with unmatched on-chain trading functionalities.

We deliver simultaneous asset swaps, multi faceted yield capture, copy trading, and hedging optionality through our infinitely customizable strategy agents. Users can configure agents to navigate DEXs, lending, yield-bearing protocols, and other derivatives synchronously via conditional triggers and adaptive logic. With one simple action, entire portfolios can be revamped, redelegated, and programmed to automatically rebalance in accordance to shifting market sentiments.

The protocol MVP is currently deployed on Arbitrum One, and currently working towards multi-chain expansion and integration for crosschain settlement compatibilities on Base, Monad, HyperEVM and beyond.

Additional Info:

• Website
• Docs

We are seeking a Senior Software Engineer to join our Stablecoin team, responsible for building platforms and infrastructure for Stablecoin issuance, growth, and utility. This team plays a crucial role in enhancing the stablecoin ecosystem at Coinbase, including developing a Rewards Orchestration System that offers rewards to both retail and institutional customers across various Coinbase product surfaces such as Retail, Exchange, Prime, Custody, and Neptune.

Team Overview:

The Stablecoin team comprises seven members, including two IC3s, one IC4, two IC5s, and one IC6, with three open headcounts. The new hire will have opportunities for both mentoring and being mentored. The team works closely with two sister teams focused on Stablecoins UX for Retail and adding new Stablecoins internationally.

Role Description:

As a Senior Software Engineer on the Stablecoin team, you will drive projects that create more utility around stablecoins. You will contribute to or build platforms for stablecoin issuance and growth, and you will be the Directly Responsible Individual (DRI) for your projects. Immediate projects include issuing Canadian and Singaporean stablecoins and deploying stablecoins on more chains across multiple products such as Retail, Exchange, Prime, and Custody.

What you’ll be doing (job duties):

• Develop new services to meet critical product and business needs using industry best practices.
• Architect and design scalable systems to solve novel problems.
• Define a long-term vision for maintaining and scaling our backend systems and teams.
• Collaborate with engineers, designers, product managers, and senior leadership to turn our vision into a quarterly roadmap.
• Serve as a technical lead and subject matter expert.
• Write high-quality, well-tested code to meet customer needs.

What we look for in you:

• Minimum 5 years of experience in software engineering.
• Experience designing, building, scaling, and maintaining production services, and knowledge of service-oriented architecture.
• Proficiency in writing high-quality, well-tested code.
• Passion for building an open financial system that brings the world together.
• Leadership skills to develop other engineers.

Nice to haves:

• Experience in rapid company growth (from startup to mid-size).
• Familiarity with growth experiments or A/B testing frameworks.
• Experience with Blockchain technology (e.g., Bitcoin, Ethereum).
• Experience decomposing a large monolith into microservices.
• Proficiency with Golang, Ruby, Docker, Rails, Postgres, MongoDB, or DynamoDB.
• Experience in building financial, high-reliability, or security 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 #: GCBE05CA

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

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Stablecoin Ecosystem team is looking for BE developers who will help in delivering a suite of international stablecoins. The role will be responsible for evaluating the APIs of external partners, integrating them with internal systems to enable operations of a stablecoin . The role will work with product, designers and tech leads to deliver different features.

What you'll be doing:

• Articulate a long term vision for maintaining and scaling our backend systems.
• 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 gone through a rapid growth in your company (from startup to mid-size).
• You’ve built growth experiments or A/B tests.
• You have experience with Blockchains (such as Bitcoin, Ethereum etc..)
• You have experience decomposing a large monolith into microservices.
• You’ve worked with Golang, Ruby, Docker, Sinatra, Rails, Postgres, MongoDB or Redshift.
• You’ve built financial, high reliability or security systems.
• You 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 #: GCBE04CA

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

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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: Software Engineers play a key role in providing design, development/configuration, unit testing, and ongoing maintenance of Zinnia software platforms. WHAT YOU’LL DO: • Work as part of a Platform Support team in doing investigations Level 3 Support Zinnia Business and Client Operation Teams• This position will work the 5:00 PM to 2:00AM shift to provide support during CST hours.• Create well-designed, customized, testable, and efficient code for ZINNIA platforms.• Collaborate with our global teams, internal stakeholders, and customers.• 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 both independently and in conjunction with team members and business units. Enthusiasm and flexibility to work on a variety of projects WHAT YOU’LL NEED:• Should have 5-7 years IT experience with not less than 4 years of strong expertise in Microsoft .NET technologies with end-to-end project life cycle experience using Agile / Kanban methodologies.• Proficient in SQL Server knowledge in designing and developing SQL queries. Mongo DB, NService Bus• Proficient in .Net framework• Expert in building Restful API• Must have experience in designing and developing products using various technologies – C#, React JS, Angular, and Java script• Should have good demonstrable experience in systems architecture and N-tier application development using Microsoft technical stack SQL server, TFS, Azure DevOps.• Knowledge of AWS Lamda functions, Containers/Micro Service architecture, Docker, Python and Java• AWS Practioner Certified preferred 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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