Senior Software Engineer - MetaMask (Ramps)

Consensys is the leading blockchain and web3 software company, pioneering technological developments within the web3 ecosystem. The Senior Software Engineer on the RAMPS team will own the entire lifecycle of features and projects, build user-facing features in the React Native mobile application, and collaborate with various teams to deliver on the roadmap.

Responsibilities:

• 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

Requirements:

• 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