Senior Mobile Engineer - React Native, End-to-End Features

Triumph is seeking a talented mobile engineer to own core features in React Native and Expo, from design discussions to launch and iteration. You'll shape motion, transitions, and perceived performance to create a native-like user experience while ensuring correctness and polish in a high-stakes trading-card app. You'll dive deep into native modules when needed, partner with backend teams on API design, and own reliability metrics such as startup time and crash-free sessions.