Job Summary

Designation / Position: Bluetooth Developer

Responsibilities

- Bluetooth Stack Development & Integration: Develop, customize, and integrate Bluetooth stack components (Fluoride stack/BlueZ or OEM BT stack).
- Implement and extend BT profiles such as:
- Hands-Free Profile (HFP)
- Advanced Audio (A2DP/AVRCP)
- Phonebook Access (PBAP)
- Message Access (MAP)
- HID
- PAN
- BLE GATT profiles

- Work on Android framework/BT service and HAL layer modifications.
- Update or create a design for Implementation or modification.
- Bluetooth Audio & Telephony: Work on audio path routing, SCO/eSCO handling, and BT audio performance tuning.
- Debug audio issues like: Stutter, 1.5/2 speed playback, Delay or sync issues, Call audio one-way/no audio.
- Optimize latency, bandwidth, and codec performance (SBC/AAC/aptX LC3).
- BLE: Develop and integrate BLE profiles and GATT services. Work with BLE privacy, random/static addresses, pairing/bonding, and reconnection strategies. Develop BLE scanning/advertising and coexistence strategies with Wi-Fi.
- Connectivity, Coexistence & Performance: Debug BT/Wi-Fi coexistence issues. Analyse connection drops, pairing failures, and reconnection behavior. Work on RF parameters,



HCI command/response flows, and link quality behavior.
- Debugging & Analysis: Use tools such as HCI snoop logs, Bluetooth HCI logs, Bluetooth Air Sniffer logs; btmon/btsnoop, adb/logcat; QXDM (for modem/BT integrated chipsets). Perform root cause analysis for complex field/issues from OEM/customer. Interact with chipset vendors (Qualcomm, Mediatek, CSR, TI, etc.) for bug resolution.
- Interoperability (IOP) & Certification: Support Bluetooth IOP testing with various phones (Android/iOS). Ensure compliance with Bluetooth SIG requirements. Support BT certification cycles and required documentation.
- Software Quality & Process: Participate in code reviews, unit testing, and integration testing. Ensure compliance with automotive quality processes (A-SPICE). Support Scrum/Agile development activities and deliverables.

Job Details

- Job Location: Chennai
- Industry Type: Software Product
- Functional Area: IT & Information Security
- Qualification: Any Graduate
- Work Experience Required: 3+ Year

Skills

Mandatory Key Skills:

- BLE
- Android
- Java

📌 Bluetooth Developer (Chennai)
🏢 Serendipity corporate services
📍 Chennai