Senior Full-Stack Engineer — React / TypeScript / Node.js

San Francisco 3 days agoFull-time External
1.4k - 2.8k / yr
Senior Full-Stack Engineer (Founding-level) — React / TypeScript / Node.js (In-Person, San Francisco) Job type: Full-time Location: San Francisco, CA (in-person) Seniority: Staff / Principal-caliber Experience: 5+ years (we’re hiring for proven senior impact) Work authorization: Must already be legally allowed to work in the U.S. About the product We’re building a platform that makes it easy for non-coders to bring app ideas to life—quickly turning concepts into working products. The role We’re looking for a very senior, highly autonomous full-stack engineer—someone who can take an ambiguous problem, turn it into a clear plan, and ship a high-quality solution end-to-end. You’ll work directly with the founders and have significant ownership over product execution and technical direction, touching everything from AI systems and user-facing features to backend infrastructure. If you’re happiest when you’re building, shipping, and owning outcomes—not waiting for perfect specs—this role will fit. What you’ll do Drive features from idea → design → implementation → launch → iteration Build polished, high-quality user experiences with excellent UX and product craft Design backend systems/APIs with strong attention to reliability and performance Make pragmatic architecture decisions and unblock the team with strong technical judgment Debug hard problems across the stack (performance, edge cases, production issues) Move fast while maintaining high standards on the things that matter What we’re looking for (Senior/Staff/Principal traits) Proven senior-level experience shipping production systems and owning complex projects Ability to work with minimal oversight and consistently deliver Strong generalist engineering fundamentals: System design Performance and reliability Low-level problem solving / debugging True full-stack comfort: frontend + backend (a spike in either is a plus) Strong product sense: you care about details and believe craft matters Required tech React TypeScript Node.js You’ve shipped meaningful features end-to-end in production using this stack Location & availability requirements (important) Must work in-person in our San Francisco office Candidates outside California must be able to relocate immediately Relocation within 1 month is acceptable Relocation in 3–6 months is not acceptable Must already be legally allowed to work in the U.S. No visa sponsorship preferred Work trial (required) One-week paid work trial Must be in-person, Monday–Friday, full-time Some flexibility only for exceptional candidates Payment is made directly by the company Job Type: Full-time Pay: $100,000.00 - $200,000.00 per year Benefits: 401(k) matching Dental insurance Health insurance Relocation assistance Vision insurance Work Location: In person