Android/Flutter Developer for "Offline-First" Safety Hardware (BLE Scanning + Kiosk Mode)
PROJECT AUDIT: We are building a BLE-enabled hardware product ("VisiBLE"). We require a Full-Stack IoT Engineer capable of writing both the firmware (C/C++) and the mobile client (iOS/Android).
THE HARDWARE:
Chipset: [INSERT CHIP NAME, e.g., Nordic nRF52, ESP32]
Current State: Prototype PCB available; no firmware written.
THE SCOPE:
Firmware: Develop GATT server profile. Define Services/Characteristics. Optimize for low-power sleep states.
Mobile: Build a dual-platform app (Flutter/React Native acceptable ONLY if you have native bridge experience) to scan, connect, bond, and read/write data.
MANDATORY REQUIREMENTS (Do not apply if missing):
Proven experience with Embedded C/C++ and RTOS.
Experience with CoreBluetooth (iOS) and RxAndroidBle (Android).
Must be able to debug via logic analyzer/sniffer.
DELIVERABLE: Source code for both firmware and mobile app, plus documentation of the BLE attribute table.
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