Firmware Audio Engineer

7 hours ago

Mumbai, Maharashtra, India Qode Full time ₹ 20,00,000 - ₹ 25,00,000 per year
We are seeking a highly experienced Firmware Engineer with 8+ years of hands-on experience inembedded audio software development, including Bluetooth audio, low-power design, andaudio signal processing. This is a critical role in our hardware-software co-development team,where your expertise will directly impact the performance and user experience of our AR/VR smartglasses and immersive systems.
In this role, you will work on Bluetooth audio protocols, embedded DSP optimization, noisecancellation algorithms, and real-time streaming pipelines, while collaborating closely withhardware, product, and design teams. Your work will drive the core embedded intelligence ofour' next-generation devices.
Top 3 Daily Tasks● Develop and optimize embedded audio firmware using C/C++, ensuring efficientperformance, 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.
Full-Stack AwarenessWhile your primary focus will be firmware and embedded systems, awareness of system-levelsoftware integration, cloud/BLE connectivity, and app-level coordination will be a plus indelivering robust end-to-end solutions.
Must haves-● Strong command of Embedded C/C++, including memory management, real-timeprogramming, and hardware abstraction.● Deep understanding of Bluetooth architecture, audio profiles (A2DP, AVRCP, HFP), BLEfeatures (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 NoiseCancellation) and ANC (Active Noise Cancellation).● Proficiency with tools and methods for debugging, testing, and performance optimizationof embedded systems.
Nice to haves-● Working with embedded Linux or RTOS-based environments.● Integrating Bluetooth stacks from Nordic (nRF52), Qualcomm (CSR), or Broadcomchipsets.● Handling audio streaming, buffer management, latency reduction, and audio qualityassurance.
We need someone who can join in 20 days max● 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 andtest automation scripts.

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