Bluetooth Developer

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