Bluetooth Developer

Serendipity Corporate Services; Chennai District; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

Serendipity Corporate Services seeks a Bluetooth stack and embedded software expert to work on Android/Linux platforms, focusing on Fluoride/BlueZ stacks, BT Classic/BLE protocols, and audio subsystems. You will analyze RF behavior, perform static code analysis, and execute BT SIG PTS tests in an RTOS environment with multiple chipset SDKs.

The role requires strong C/C++, Java, and Linux/Android system programming skills, with experience across A2DP/AVRCP/HFP/PBAP/MAP stacks and HCI/pairing

Qualifications

• Strong experience with Bluetooth stack internals (Android Fluoride stack or BlueZ).
• Knowledge of BT Classic and BLE protocols (L2CAP, SDP, GATT, RFCOMM, AVDTP, AVRCP, PBAP, MAP, HFP AT commands).
• Experience in C/C++, Java (Android stack), and Linux/Android system programming.
• Good understanding of BT controller, HCI layer, pairing/bonding, LE privacy, and address types.
• Ability to analyze BT/WiFi coexistence issues and RF behavior.
• Experience working on A2DP/AVRCP/HFP/PBAP/MAP.
• Good understanding of Audio frameworks (AudioFlinger, audio HAL).
• Run static analysis on the software components, analyze and fix errors.
• Execution of PTS test case in Launch studio for BT SIG certification.
• Experience in RTOS environment working with BLE chipset vendors and their SDKs, such as Nordic Semiconduct or (nRF52840, nRF52832), Texas Instruments (CC2541, CC2540) and NXP (AW611, AW300, KW36, KW45).

Skills

Bluetooth Stack internals

BT Classic & BLE Protocols

C/C++ & Java

BT HCI & Pairing

RF Coexistence Analysis

A2DP/AVRCP/HFP/PBAP/MAP

Audio Frameworks

Static Analysis

BT SIG PTS Testing

RTOS & BLE SDKs

Car Infotainment (Nice to have)

Chipset exposure (Qualcomm/Mediatek/NX

ACL/SCO tuning (Nice to have)

OEM IVI systems (Nice to have)

Job description

Required Skills & Experience

Technical Skills

• Strong experience with Bluetooth stack internals (Android Fluoride stack or BlueZ)
• Knowledge of BT Classic and BLE protocols (L2CAP, SDP, GATT, RFCOMM, AVDTP, AVRCP, PBAP, MAP, HFP AT commands)
• Experience in C/C++, Java (Android stack), and Linux/Android system programming
• Good understanding of BT controller, HCI layer, pairing/bonding, LE privacy, and address types
• Ability to analyze BT/WiFi coexistence issues and RF behavior
• Experience working on A2DP/AVRCP/HFP/PBAP/MAP
• Good understanding of Audio frameworks (AudioFlinger, audio HAL)
• Run static analysis on the software components, analyze and fix errors
• Execution of PTS test case in Launch studio for BT SIG certification
• Experience in RTOS environment working with BLE chipset vendors and their SDKs, such as Nordic Semiconduct or (nRF52840, nRF52832), Texas Instruments (CC2541, CC2540) and NXP (AW611, AW300, KW36, KW45)

Nice to Have

• Experience with car infotainment systems (Android Automotive / QNX / Genivi)
• Exposure to Qualcomm/Mediatek/NXP BT chipsets
• Knowledge of ACL/SCO link behavior and codec tuning
• Experience with OEM IVI systems (Ford, JLR, GM, Stellantis, VW etc.)

Keywords

Bluetooth Stack (Fluoride/BlueZ), Bluetooth Classic & BLE Protocols, C/C++ & Java, Android/Linux System Programming, A2DP/AVRCP/HFP/PBAP/MAP, Bluetooth HCI & Pairing/Bonding, RTOS & BLE Chipset SDKs.

Mandatory Key Skills (atleast 1)

Bluetooth Stack (Fluoride/BlueZ), Bluetooth Classic & BLE Protocols, C/C++ & Java, Android/Linux System Programming, A2DP/AVRCP/HFP/PBAP/MAP, Bluetooth HCI & Pairing/Bonding, RTOS & BLE Chipset SDKs.