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Embedded Audio Firmware Engineer - Linux/RTOS

AppZime Technologies Pvt Ltd
Multiple Locations
10 - 15 Years

Posted on: 01/11/2025

Job Description

Description :

- Develop and optimize embedded audio firmware using C/C++, ensuring efficient performance, low power consumption, and real-time audio processing.

- Work on Bluetooth audio protocols (A2DP, AVRCP, HFP), BLE profiles (HAP, TMAP, HAS, PBP), and audio codec integration (SBC, AAC, aptX, LC3).

- Collaborate with hardware and systems teams to integrate microphones, speakers, amplifiers, and other peripherals via interfaces such as I2S, UART, and SPI.

Minimum Work Experience Required :

- 8+ years of embedded firmware development experience with a focus on audio systems, Bluetooth communication, and low-level hardware integration.

Top 5 Skills You Should Possess :

- Strong command of Embedded C/C++, including memory management, real-time programming, and hardware abstraction.

- Deep understanding of Bluetooth architecture, audio profiles (A2DP, AVRCP, HFP), BLE features (HAP, TMAP, HAS), and advanced Bluetooth technologies like Angle of Arrival (AoA) and Angle of Departure (AoD).

- Hands-on experience with audio codecs: SBC, AAC, aptX, and LC3.

- Familiarity with noise reduction techniques such as ENC (Environmental Noise Cancellation) and ANC (Active Noise Cancellation).

- Proficiency with tools and methods for debugging, testing, and performance optimization of embedded systems.

Youll Be an Ideal Fit If You Have Experience In :

- Working with embedded Linux or RTOS-based environments.

- Integrating Bluetooth stacks from Nordic (nRF52), Qualcomm (CSR), or Broadcom chipsets.

- Handling audio streaming, buffer management, latency reduction, and audio quality assurance.

- Bluetooth sniffing and traffic analysis using tools like Ellisys, Frontline, or similar.

- Audio quality testing: Evaluating latency, jitter, and fidelity across Bluetooth audio profiles.

- Power optimization and low-power system design for wearable/portable applications.

- Working in Agile teams, using Git, CI/CD, and writing clear technical documentation and test automation scripts.

Bonus Points For :

- Experience working with beamforming, multi-microphone array processing, or spatial audio.

- Familiarity with Bluetooth SIG specifications and standard compliance testing.

- Exposure to AI/ML-assisted audio processing, such as smart noise reduction or adaptive filtering.

- Involvement in multimedia or AR/VR hardware platforms


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