Senior Software Engineer

### Who you are
- 3+ years of experience in software engineering with a focus on mobile or full-stack development
- Demonstrable proficiency with React Native (2+ years)
- Proficiency in TypeScript across the stack (frontend and backend)
- Backend experience with Node.js (NestJS, Express, or similar frameworks)
- Experience with Web3 fundamentals — wallets, blockchain transactions, and the Ethereum ecosystem
- Experience integrating third-party APIs, particularly in payments or financial services
- Active, proficient use of AI-assisted development tools (Cursor, Claude Code, GitHub Copilot, or equivalent). We expect the majority of your development workflow to be AI-augmented — this is a core engineering practice on our team, not optional
- Strong communication and collaboration skills in a remote-first environment
- Comfort working in agile environments with cross-functional teams
- Commitment to clean code practices, testing, and maintainable software
- Proactive and self-driven to be successful working remotely
- Understands the business context their code supports and uses that knowledge to influence prioritization and trade-offs
- Prior experience at fintech or payments companies (e.g., Stripe, Revolut, Robinhood, Square)
- Experience working on fiat on/off-ramp systems, KYC/AML flows, or payment rail integrations
- Experience working in large, multi-team codebases with shared libraries and modular architecture
- Experience building complex, data-rich mobile UIs with async data fetching, loading states, and error handling
- Demonstrable proficiency with Android or iOS platform (1+ years)
- Contributions to open-source projects
- You're a MetaMask user
- Don't meet all the requirements? Don't sweat it. We’re passionate about building a diverse team of humans and as such, if you think you've got what it takes for our chaotic-but-fun, remote-friendly, start-up environment—apply anyway, detailing your relevant transferable skills in your cover letter. While we have a pretty good idea of what we need, we're ready for you to challenge our thinking on who needs to be in this role

### What the job involves
- Own the entire lifecycle of features and projects — from technical design through to launch and production monitoring
- Build and ship user-facing features in our React Native mobile application
- Contribute across the full stack: React Native mobile frontend, Node.js/NestJS backend API, and shared TypeScript libraries
- Integrate third-party payment providers and financial services APIs
- Improve application performance, test coverage, and developer experience
- Onboard and mentor other engineers through code reviews and pairing
- Identify and suggest areas of future work for yourself and the team
- Collaborate with Product, Design, QA, and Backend Engineering partners to deliver on the team's roadmap
- Participate in code reviews, sprint ceremonies, on-call rotations, and the hiring process
- Leverage AI-assisted development tools (Cursor, Claude Code, or equivalent) as a core part of your daily engineering workflow

### Benefits
- Equity - We believe in ownership and want everyone to have a stake in our future success, that’s why you’ll receive equity when you join us
- Recognized in the blockchain and Web3 ecosystem - Working at ConsenSys is a tremendous reference for your career. You’ll join a network of entrepreneurs and technologists that extends across the global crypto ecosystem
- Continuous learning & opportunities - We provide ongoing growth and development through on-the-job learning, and the ConsenSys Advance Program which includes full access to Coursera, bespoke and technical learning programs and ConsenSys Academy our world-class blockchain and Ethereum program
- Unlimited vacation holidays - We value downtime to recharge and reset, ensuring everyone at ConsenSys has work/life balance. In addition, company-wide we participate in “zero productivity” days to take a break from work, shut down, and sit back and relax
- Flexible working arrangements - With our global workforce we have fine-tuned asynchronous working which means we have a lot of flexibility in the structure of when we work and how we work together
- Remote first - You’ll be joining a team based all over the world. Providing the unique opportunity to work with people from across 6 continents