Staff Software Engineer

Who you are

• 8+ years working with web and mobile-based technologies
• Experience building trading, financial, or other correctness-critical systems where precision, race conditions, and state consistency carry real financial risk (margin, settlement, order matching, payments, etc.)
• Experience with real-time data systems (WebSockets, streaming price feeds, optimistic UI updates) and building resilient UX around unreliable network conditions
• Track record of leading technical initiatives that span multiple teams or codebases without direct reporting authority — demonstrated Staff-level scope, not just Senior-level execution
• Hands-on experience with React and React Native
• Extensive experience with modern Javascript (ES6/TypeScript/etc.)
• Experience with blockchain fundamentals across multiple blockchain architectures
• Strong working knowledge developing cross platform/browser compatibility
• Experience working in an agile development team
• Experience developing medium to large-scale applications across the entire stack with minimal tech debt through sensible abstractions, testing, linting, and adherence to coding/web standards
• Experience consuming and building APIs
• A demonstrable understanding of Continuous Integration
• Strong understanding of security risks specific to financial/trading products — transaction integrity, race conditions in state updates, precision/rounding bugs — in addition to standard web security threats (XSS, CSRF, etc.)
• Direct experience integrating with perpetuals/derivatives protocols (e.g., Hyperliquid, Lighter, or similar) or building trading infrastructure
• Experience with cross-chain bridges, transaction lifecycle and/or interoperability solutions
• Experience working in a decentralized, distributed team
• Previous experience working in Web3
• Product knowledge about the Web3 wallet space
• Mobile experience (React Native, Objective C, Swift)
• Excellent verbal and written communication in English
• Teamwork, flexibility, initiative, communication and organization
• Willingness to constantly learn & improve, challenging yourself to stay at the top of your game
• 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

What the job involves

• Own the technical architecture and roadmap for MetaMask's Perpetuals experience across Extension and Mobile — from real-time price/position data flows to order execution and margin/liquidation UX
• Set technical direction and standards for trading-critical features: precision/decimal handling, state consistency under high-frequency updates, and resilience to feed/connectivity failures
• Drive cross-team technical alignment with other experience teams and backend/protocol integration teams to ship complex, multi-team projects
• Identify and de-risk the hardest technical problems on the roadmap before they become blockers; make build-vs-buy and architecture trade-off calls for the domain
• Partner with the Engineering Manager on prioritization, providing the technical judgment that shapes what gets built and in what order
• Mentor senior and mid-level engineers, run design/architecture reviews, and raise the technical bar through example, documentation, and code review
• Represent Perpetuals engineering in cross-functional planning with Product, Design, and other engineering leads

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