MetaMask - Staff Software Engineer: Perpetuals

• 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. 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. • In the rapidly evolving Web3 space, we believe that everyone is a builder. This expansive paradigm requires a range of backgrounds, talents, skills, and experiences to influence and shape the future. At MetaMask, this diversity fuels our ability to shift control and redefine the realm of possibility. We are committed to ensuring that our technology empowers people and communities through decentralized technologies. We welcome the range of perspectives and differences and celebrate them. We're excited to see how your unique skills as a builder can contribute to our vision, drive innovation, and help us shape a more inclusive Web3.