Senior React Native Developer

Mincka Engineering is hiring a Senior React Native Developer to own a mobile application used by field personnel working in locations with unreliable or absent connectivity. Offline capability is the defining constraint of this product, not an afterthought. This is a contract, project-based role: you'll take the application from an empty repository through to release on the App Store and Google Play.

Responsibilities

• Build a React Native application from scratch through to App Store and Google Play release
• Design an offline-first architecture: the app must remain fully functional for hours without connectivity and reconcile cleanly on reconnect
• Build a multi-step data capture flow with validation and draft persistence
• Implement camera integration with structured, categorized photo capture
• Build interactive annotation on technical images, mapping user-placed markers to stored coordinates
• Build a synchronization engine with conflict handling and clear failure states
• Implement authentication against AWS Cognito, including federated sign-in
• Manage releases: builds, TestFlight, store submissions, and review responses

Requirements

• You have shipped at least one React Native application to the App Store and Google Play and supported it in production
• Direct experience building offline-first mobile applications with local persistence and synchronization
• Strong TypeScript
• Experience with native device APIs: camera, file system, background tasks, permissions
• You have been through App Store and Play review, including at least one rejection
• Daily working proficiency with Claude Code or an equivalent agentic coding tool

To apply, please complete our application form: https://forms.gle/QpVE6LyWMLEzmudX8