Senior Software Engineer, Full Stack

Learn more about our mission, culture, and background on our Careers Page .

- Lead efforts for often ambiguous technical projects, laying the groundwork for early-stage products to iteratively evolve and scale.

- Design, build, and maintain APIs, user-facing experiences, services, and systems.

- Make effective tradeoffs between business priorities, user experience, and reliability.

- Work with critical frontend, backend & platform projects end-to-end-from design to production ops.

- Push architecture that scales to billions in annual payment volume and real-time risk controls.

- Work closely with product and GTM leads to turn ambiguous problems into elegant code.

- Have 5+ years of professional experience building B2B or B2C SaaS products (FinTech, payments, or marketplace a plus).

- Thrive in zero-bureaucracy, high-ownership environments.

- Balance speed with rigor-automated tests, clean abstractions, clear docs.

- Can participate in architecture discussions and still dive deep into code (we use React, Ruby, Postgres-but great engineers pick up tools fast).

- Communicate crisply across time zones.

- This role is required to be in office 4 days/week (Mon-Thurs) either in San Francisco Bay Area or New York