Senior React + React Native Developer

Role overview Build product features across a web administration experience and a mobile app used by field teams. You’ll work closely with product and design, contributing to regular releases while improving usability, accessibility, and performance across both platforms.

Responsibilities - Develop TypeScript features for React web applications and React Native mobile apps. - Create reusable, accessible components and support English, Spanish, and Portuguese localization. - Improve offline-first mobile workflows, including queued sync and conflict handling. - Review code, mentor junior engineers, and take part in an on-call rotation of one week in six. - Maintain performance targets, including a mobile JavaScript bundle below 4 MB and web LCP below 2.5 seconds.

Requirements - At least 5 years building production React applications. - At least 2 years with React Native, or equivalent depth in native iOS or Android development. - Strong TypeScript skills and experience with modern testing practices. - Familiarity with REST APIs, JWT authentication, and real-time WebSocket flows. - Care for the experience of non-technical users.

Nice to have - Experience with Expo EAS for builds or over-the-air updates. - Mapping or geolocation work, such as MapLibre or Mapbox. - English and Spanish fluency.