Audio Firmware Engineer

2 months ago

San Mateo, CA, USASenior

H1B sponsor

Base Salary

$193k - $290k/yr

Responsibilities

Own and develop firmware for gaming peripherals, including technical leadership, system architecture, and execution across the firmware domain.
Design, implement, and debug Bluetooth and BLE features across RTOS, kernel drivers, systemd/D-Bus services, ALSA/ASoC, codec and DSP drivers, A2DP, HFP, and AVRCP.
Deliver pairing, bonding, provisioning, GATT/GAP, and LE Audio/LC3 functionality.
Optimize audio latency, buffer sizing, glitch elimination, clock drift, sample-rate conversion, jitter buffering, low-power paths, coexistence, and nearby discovery.
Reconcile wireless-link and codec clocking while supporting concurrent audio paths without audible drift or resampling artifacts.
Use packet captures, ALSA/PipeWire tooling, tracepoints, perf/EBPF, logic analyzers, and audio analyzers to instrument and debug systems.
Drive interoperability and certification readiness for Bluetooth SIG, USB-IF, and Microsoft HLK, and resolve field issues through root-cause fixes.
Contribute to OTA-safe configuration, telemetry, and diagnostics for fleet-scale operation.
Support manufacturing builds, per-unit acoustic calibration, firmware activities during product bring-up, and post-launch product support.

Highly proficient in C/C++, with scripting experience in Python or shell and systems debugging using gdb, strace, logs, and packet traces.
Deep knowledge of Bluetooth Classic and BLE, including HCI, L2CAP, GATT/GAP, and profiles.
Hands-on experience with BlueZ and driver bring-up on ARM64 or x86 platforms.
Experience with A2DP, HFP, AVRCP, BAS, ASCS, PACS, and LE Audio codecs including SBC, AAC, aptX, LDAC, and LC3.
Deep experience shipping wireless features on Mac, Windows, Linux-based platforms, and/or console SDKs.
Experience with Bluetooth audio SoC vendor stacks such as Qualcomm QCC, Airoha, Realtek, and Nordic RnF, or proprietary 2.4 GHz link designs.
Proven record of improving real-world performance and reliability under RF constraints.
Passion for gaming, digital entertainment, and consumer electronics.
Preferred experience integrating DSP features such as AEC, noise suppression, beamforming, sidetone, and spatial audio/HRTF.
Preferred experience with WASAPI/APOs on Windows and CoreAudio on macOS.
Preferred experience with secure boot, signed images, key management for OTA, battery-life profiling, power-state tuning, Yocto, Buildroot, and direct ODM/CM engagement in Asia.

Medical, dental, and vision coverage.
Matching 401(k), paid time off, wellness program, and employee discounts on Sony products.
Potential eligibility for a bonus package.
Hybrid working policy may affect the base pay range and individual base pay determination.
Background checks are conducted at the offer stage for new employees.