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Mobile Lead Engineer (React Native) - US-based

Key Facts

Remote From: 
Category:  Mobile Engineer
Full time
Senior (5-10 years)
English

Other Skills

  • Problem Solving
  • Time Management

Roles & Responsibilities

  • Experience with React Native
  • Strong knowledge of Bluetooth SDKs
  • Familiarity with iOS and Android development
  • Understanding of secure credential storage

Requirements:

  • Integrate vendor-supplied Bluetooth SDK into React Native
  • Handle cross-platform BLE identifier management
  • Implement lock and unlock flows with timing constraints
  • Develop offline-first behavior with pending-action queue

Job description

Our client is looking for a Mobile Lead Engineer for a project focused on a cross-platform React Native app (iOS and Android) that discovers, pairs with, and controls BLE hardware.

● Native module integration: wiring a vendor-supplied Bluetooth SDK into React Native and handling the bridge cleanly

● Cross-platform BLE identifier handling, where iOS exposes a per-pairing UUID and Android exposes the MAC address directly

● Lock and unlock flows with hard timing constraints (sub-second response, short connection and validation windows)

● Over-the-air firmware updates to connected devices

● Offline-first behavior: a pending-action queue that syncs when the device reconnects

● Secure credential storage (iOS Keychain, Android Keystore), biometric auth, NFC, and QR-based device registration

● Real-time device status: battery, firmware version, connectivity state

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