Fin
Senior Full-Stack Software Engineer
$125K–$250K
New York, NY +1 · Senior · Full-time · Posted Dec 3, 2025
- Location
- New York, NY
Remote
About the job
Build and ship full-stack product features and reliable systems for Fin’s global payments platform, including integrations with payment and financial partners.
What you'll do
- Design and deliver features across web and mobile, from APIs and services to user interfaces.
- Own projects end to end, including scoping, system design, implementation, testing, and production deployment.
- Integrate payment and financial APIs and build scalable, reliable services for money movement.
What they ask for
- Deep experience with TypeScript and Node.js.
- Production experience with React Native.
- Experience owning complex product changes from idea through launch.
- Strong cross-stack debugging skills and understanding of security best practices, especially authentication, authorization, and sensitive data.
Nice to have
- Experience with traditional fintech integrations or blockchain infrastructure, especially Solana in production.
- Prior early-stage startup experience with meaningful product ownership.
Pay
$125K – $250K (base salary)
Tools
TypeScript, Node.js, Rust, React Native, Expo, Stripe, PayPal, Solana
Model-written summary · the original posting is authoritative