Senior / Tech Lead Mobile App Developer

About the Role

Join a lean, fully remote team building mobile experiences for a blockchain trading platform. You will own the React Native app across iOS and Android, combining hands-on development with technical leadership as the product grows.

What You'll Do

• Own the app's architecture, performance, reliability, scalability, and long-term maintainability.
• Build complex trading and prediction market features using React Native and TypeScript.
• Collaborate with Product, Design, and Engineering to shape APIs, integrations, and real-time data flows.
• Lead features from technical design through implementation, testing, app store releases, monitoring, and iteration.
• Investigate production issues, improve performance, and support engineering quality through code reviews and technical discussions.

What We're Looking For

• 7 to 10 years of mobile development experience, including ownership of architecture and technical decisions for production applications.
• Professional experience with React Native, React, TypeScript, and JavaScript, and a track record of shipping apps on iOS and Android.
• Experience with mobile CI/CD, REST APIs, and real-time integrations such as gRPC, Server-Sent Events, and WebSockets; familiarity with Node.js is useful.
• Production mobile app experience in crypto, blockchain, Web3, or DeFi, with familiarity with Cosmos SDK or EVM ecosystems.
• Fintech or trading app experience, including market data, order execution, or charting, is a plus.
• Must be a US citizen or permanent resident.

Compensation & Benefits

Annual salary range: $150,000 to $250,000 USD. Visa sponsorship is not available.

Location

Fully remote within the United States, with New York, New York as the primary location.