Role: Senior Mobile Developer – React Native
Remote (Brazil or Mexico or Costa Rica)
Contract
Responsibilities
- Cross Platform Development Expertlevel proficiency in React Native for building high-performance reusable components for both iOS and Android
- State Management Mastery of Redux MobX or React Context API for managing complex application states and offline data persistence
- Native Modules Experience writing Native Bridges Java Kotlin for Android ObjectiveCSwift for iOS to access device specific features not covered by standard React Native APIs
- Performance Optimization Deep expertise in optimizing app render times memory usage and battery consumption
- Navigation Proficiency with React Navigation or React Native Navigation for complex screen flows
- Mobile Ecosystem Tooling
- Build Tools Expert use of Metro Bundler Xcode and Android Studio for building debugging and profiling applications
- App Store Management Experience managing the end-to-end release process for the Apple App Store and Google Play Store including TestFlight and Beta testing
- Code Push Proficiency in using Microsoft Code Push for overtheair OTA updates to bypass traditional store review cycles for critical hotfixes
Secondary Technical Skills Integration DevOps
- Backend API Integration
- REST GraphQL Deep understanding of consuming complex APIs handling authentication OAuth2JWT and managing data synchronization
- Offline First Architecture Experience implementing offline capabilities using Watermelon DB Realm or SQLite to support field users with intermittent connectivity
- Mobile DevOps Quality
- CICD Pipelines Experience with Fastlane Bit rise or Azure DevOps for automated mobile build and deployment pipelines
- Testing Proficiency in Jest for unit testing and Detox or Appium for end-to-end E2E automation
- Crash Analytics Expert use of Firebase Crashlytics or Sentry to monitor app health and perform proactive bug fixing
Key Responsibilities AMS Context
- Mobile App Support Lead the resolution of Tier 2 and Tier 3 incidents affecting global mobile users from UI glitches to critical sync failures
- OS Compatibility Proactively manage app updates to ensure compatibility with the latest iOS and Android versions and hardware releases
- Complex Change Requests Translate requirements from Sales and Marketing leads into technical mobile features Design develop and test enhancements
- Root Cause Analysis RCA Perform deep dive analysis on app crashes API timeouts or data inconsistencies implementing permanent architectural fixes
- SLA Stewardship Ensure all mobile services meet strict Service Level Agreements SLAs for our 247 global field operations
- Technical Mentorship Act as the Subject Matter Expert SME for React Native in the India hub providing guidance to junior developers and UIUX designers
Preferred Skills
- Experience with TypeScript for type safe React Native development
- Familiarity with SAP Fiori for mobile or SAP Mobile Services
- Knowledge of Bluetooth IoT integration for warehouse scanning applications
- Experience with mobile security best practices biometrics certificate pinning
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