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Senior Software Engineer (React Native)

Triumph

Salary not specified
Dec 6, 2025
San Francisco, CA, US
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Triumph makes mobile gaming more thrilling by letting players wager -- and win -- real money, play in mass multiplayer games, and compete in social tournaments. We've built the top app in our App Store category and sustained 50% month-over-month growth at a nine-figure annual run rate. We're hyper-scaling our team and continuing to innovate, launching new products like Rips -- our collectibles app -- which reached an eight-figure annualized revenue pace in its first month. And we're just getting started.

Requirements

  • 5+ years of experience building consumer mobile apps with React Native.
  • Comfortable working across both mobile platforms (iOS and Android), including bridging to native modules when required.
  • Experience mentoring and onboarding engineers and contributing to shared libraries/components.
  • Bonus if you have experience crafting slick UI animations or contributing to mobile build systems and tooling.

Responsibilities

  • Build and launch one of the largest consumer gaming apps on Android
  • Build shared TypeScript libraries to enable expansion of the Triumph Platform to Web.
  • Rapidly building and iterating on new features and enhancements to increase engagement and LTV of existing user cohorts.
  • Shipping high-quality cross-platform features that scale internationally, including localization, compliance, payments, and region-specific gameplay.
  • Establishing and improving cross-platform foundations (navigation, state management, them

Other

  • Strong product sense with a bias toward shipping and iterating quickly.
  • Our team gathers 5 days a week at Triumph’s headquarters at Levi’s Plazain San Francisco.