Mobile Application Developer

2 days ago

Karachi, Sindh, Pakistan IrenicTech Full time

Role Description

We are seeking an experienced
Senior React Native Developer
for our organization. You will be responsible for building and maintaining our mobile application, implementing offline-first architecture, integrating native device features, and ensuring a seamless user experience for field workers who rely on the app daily.

Key Responsibilities

Mobile Development

  • Build responsive, performant React Native screens using TypeScript
  • Implement offline-first architecture with background sync capabilities
  • Create complex mobile features including: GPS-based check-in/check-out with geofencing
  • Voice recording and audio file management
  • Camera integration for photo/document capture
  • Push notification handling and deep linking
  • Interactive scheduling and calendar views
  • Form builders with offline validation
  • Implement real-time updates using Supabase Realtime
  • Ensure smooth performance on both iOS and Android devices

Native Integration

  • Integrate device APIs (Location, Camera, Microphone, Notifications)
  • Handle background tasks and location tracking
  • Implement secure local storage and data encryption
  • Manage app permissions and graceful fallbacks
  • Configure and manage Expo modules and native builds

Backend Contribution

  • Write Supabase Edge Functions for mobile-specific logic
  • Design sync strategies for offline data reconciliation
  • Create efficient API queries optimized for mobile
  • Implement real-time subscriptions for live updates

Quality & Performance

  • Write unit and integration tests for critical flows
  • Optimize app startup time and runtime performance
  • Implement error boundaries and crash reporting
  • Ensure accessibility compliance for diverse users
  • Monitor and reduce battery/data consumption

Skills

React Native & Expo

  • Component architecture, hooks, navigation
  • Expo managed workflow, EAS Build, OTA updates
  • Native module integration and configuration

TypeScript

  • Strong typing, generics, utility types
  • Type-safe API responses and state management

Offline-First Architecture

  • Local database (SQLite, WatermelonDB, or similar)
  • Sync strategies, conflict resolution
  • Background task management

State Management

  • React Query for server state
  • Zustand or Redux for client state
  • Offline queue management

Native APIs

  • Geolocation, geofencing, background location
  • Camera, microphone, file system
  • Push notifications (FCM/APNs)

Testing & Quality

  • Jest, React Native Testing Library
  • Detox or Maestro for E2E testing
  • Crash reporting (Sentry, Crashlytics)

DevOps

  • App Store and Play Store submission process
  • CI/CD for mobile (EAS, Fastlane, or similar)
  • Code signing and release management

Email your resume at

Thank you.

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