Job Description

Job Summary

Own the audio subsystem on ARM-based SoC platforms — kernel audio drivers, userspace audio frameworks, DSP offload and voice/audio processing pipelines for edge, enterprise and robotics devices.

Key Responsibilities

• Bring up audio hardware paths — codecs, amplifiers, I2S/TDM/SoundWire/PDM interfaces and clocking.
• Develop and maintain ALSA SoC (ASoC) machine, platform and codec drivers, DAPM routing and mixer controls.
• Integrate userspace audio frameworks (PulseAudio/PipeWire, TinyALSA, or Android audio HAL) and define routing and use-case policy.
• Enable audio DSP offload — firmware loading, control interfaces, tunnelled playback and low-power always-on listening paths.
• Integrate and tune voice and audio processing chains: echo cancellation, noise suppression, beamforming, multi-mic arrays and keyword detection.
• Measure and optimize end-to-end audio latency, glitch rate, power consumption and objective audio quality.
• Debug pops, clicks, underruns, XRUNs, sync drift and DSP crashes using traces, logs and audio capture analysis.
• Support acoustic tuning cycles and define audio validation and regression coverage.

Skill Requirements

• 8–10 years in embedded audio software engineering.
• Strong C, with C++ where the framework demands it, on embedded Linux and/or Android.
• Deep ALSA / ASoC driver development experience — DAPM, DAI links, kcontrols, codec drivers.
• Hands-on with digital audio interfaces: I2S, TDM, SoundWire, PDM; clocking and sample-rate handling.
• Audio DSP integration — firmware load, control protocol, offload playback/capture paths.
• Understanding of audio signal processing fundamentals and voice front-end algorithms (AEC, NS, beamforming).
• Latency, power and audio quality measurement and debugging methodology.

Other Requirements

• Android audio HAL, AAudio or audio policy manager experience.
• PipeWire or PulseAudio module development.
• Programming on on-SoC audio/compute DSP cores using vendor DSP toolchains.
• Bluetooth audio profiles (A2DP, HFP, LE Audio / LC3).
• Acoustic tuning and lab measurement experience.