Bluetooth Developer

Serendipity Corporate Services; Chennai; On-site; INR 600,000 - 900,000; Full time

Job summary

Serendipity Corporate Services in Chennai is seeking a Bluetooth Developer to design, develop, and integrate Bluetooth stack components across Fluoride/BlueZ or OEM stacks. The role focuses on implementing BT profiles like HFP, A2DP/AVRCP, PBAP, MAP, HID, and BLE GATT, with work extending to Android BT services and HAL layer modifications.

The candidate will also tackle audio path routing, BLE integration, RF analysis, and performance tuning to ensure robust BT connectivity and certification

Qualifications

• 3+ years of work experience in Bluetooth development or related field.
• Graduation in any relevant field is required.

Responsibilities

• Develop, customize, and integrate Bluetooth stack components (Fluoride/BlueZ or OEM stack).
• Implement and extend BT profiles such as HFP, A2DP/AVRCP, PBAP, MAP, HID, PAN, and BLE GATT profiles.
• Work on Android framework BT service and HAL layer modifications; update or create design documentation.

Skills

Ble

Android

Java

Education

Any Graduate

Job description

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).

Bluetooth Low Energy (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.

Requirements

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

Skills

• Ble
• Android
• Java