Y Combinator Senior Node & React Engineer — Equity & High-Impact POS
Summary
Senior engineer in New York City building core platform services and user-facing features for a fintech-enabled payment platform using Node.js and React.
Simplex seeks a Senior Engineer in New York City to strengthen core platform services and user-facing features. The role emphasizes building with a long-term view, writing clean, scalable code, and delivering observable systems in a fintech-enabled environment.
You will work onsite in Flatiron, collaborate closely with product teams, and contribute to architecture decisions, CI/CD, and tooling, with equity opportunities for the right candidate.