Mobile Developer (iOS/Android) – BLE Wearable App

About the role

ERBrains Business Solutions is looking for a Mobile Developer to create and maintain a companion wearable application for iOS and Android. You will be responsible for integrating the OEM hardware SDK, handling Bluetooth Low Energy (BLE) communication, and delivering real‑time health dashboards.

Key responsibilities

• Integrate vendor SDK for device pairing, OTA firmware updates and raw data streaming.
• Design and implement robust background data ingestion (CoreBluetooth on iOS, Foreground Services on Android) for seamless BLE sync.
• Build local storage solutions using SQLite or Realm to cache sensor data offline.
• Develop responsive UI dashboards for complex biometrics such as strain gauges, sleep architecture and recovery trends.
• Optimize power consumption and performance for continuous background synchronization.

Required profile

• Minimum 4 years of professional mobile app development experience.
• Hands‑on expertise with Bluetooth Low Energy protocols (GATT, characteristics, connection parameters).
• Proven track record of shipping production‑grade iOS (Swift) or Android (Kotlin) applications, or deep native bridging in Flutter/React Native.
• Experience with RESTful APIs, WebSockets and offline‑first architectures.

Required skills

• Swift (iOS) or Kotlin (Android) – native development.
• Flutter or React Native with native module integration.
• BLE integration (CoreBluetooth, Android BLE APIs).
• SQLite / Realm for local data persistence.
• REST APIs, WebSockets, time‑series caching.
• Apple HealthKit or Google Health Connect (preferred).