Senior React Native Engineer

Apply for the Senior React Native Engineer
We’re looking for a Senior React Native Engineer to join a product team building a cross-platform trading app for a financial services client. The project is well underway, and you’ll step into an established codebase and agile workflow to help deliver the remaining build. This is a frontend-focused role where you’ll work on live market data, secure integrations, and high-quality mobile UI in a regulated industry. Strong TypeScript and React Native skills, experience publishing to both app stores, and the ability to ramp up quickly on an existing project are essential.
Key Responsibilities
- Develop and release new features for a cross-platform mobile app, following the team’s existing architecture and standards.
- Connect the app to backend services, handling authentication, error recovery, paginated data, caching, and indicators that show users how current their data is.
- Build live-updating screens for financial data that remain fast and stable, even when connections drop or data arrives quickly.
- Implement designs with a high level of polish, ensuring a consistent experience on iOS and Android.
- Contribute to peer code reviews, device testing, and regular agile ceremonies.
Core Requirements
- 4+ years of professional experience building React Native apps with TypeScript, with at least one app published on both the App Store and Google Play.
- Solid understanding of secure authentication in mobile apps (OAuth/OIDC, token lifecycle, secure storage) and resilient API integration.
- Experience building real-time features and managing app state with tools such as Redux, Zustand, or React Query.
- Proven ability to profile, debug, and optimize mobile app performance.
- Experience with automated testing (e.g., Jest, Detox) and mobile build and release pipelines (e.g., EAS, Fastlane).
- Previous work on fintech, trading, banking, or other regulated products.
- Excellent written and verbal communication skills in English.
- Ability to work independently in a remote, fast-paced environment.
Nice-to-Have
- Experience handling multiple currencies and locale-specific number formatting.
- Familiarity with hybrid frameworks such as Ionic.
- Experience joining projects already in progress and becoming productive quickly.
- Spanish language skills.
Additional
- Engagement: Contract, full-time, remote.
- US Timezone Overlap: EST
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