Fin
Mobile Engineer
$125K–$250K
New York, NY +1 · Full-time · Posted Dec 3, 2025
- Location
- New York, NY
Remote - Experience
- 3+ years building and shipping mobile apps in React Native.
About the job
Own and build Fin’s React Native mobile app for iOS and Android, creating intuitive payment experiences and integrating financial, identity, and security features.
What you'll do
- Own the mobile app from architecture through implementation and polish; ship features from idea to production.
- Design simple, trustworthy money-management flows and help establish secure account and custody patterns.
- Collaborate across product, design, backend, and infrastructure teams; maintain code quality through architecture, review, and testing.
What they ask for
- 3+ years building and shipping mobile apps in React Native.
- Deep familiarity with the Expo ecosystem and modern mobile build pipelines (EAS).
- Strong product sense and UI/UX attention to detail, plus understanding of mobile architecture, performance, and offline or edge cases.
- Ability to work independently, set priorities, drive projects to completion, and collaborate effectively.
Nice to have
- Shipped an app from concept to production in a small team or as primary developer; experience in consumer fintech or mobile crypto wallets.
- Experience with GCP or AWS, Solana or blockchain systems, or security, threat modeling, or penetration testing.
Pay
$125K – $250K (USD, base salary)
Tools
React Native, Expo, EAS, GCP, AWS, Solana
Model-written summary · the original posting is authoritative