P

PlayStation

Develops games, hardware, and online services

Audio Firmware Engineer

Embedded EngineeringPosted on Nov 10
Full-time

About the Job

Requirements

  • Be highly proficient in C/C++ and have scripting experience with Python or shell, along with systems-debugging experience using gdb, strace, logs, and packet traces.
  • Have deep knowledge of Bluetooth Classic and BLE, including HCI, L2CAP, GATT/GAP, and profiles.
  • Have hands-on experience with BlueZ and driver bring-up on ARM64 or x86 platforms.
  • Have experience with A2DP, HFP, AVRCP, and BAS/ASCS/PACS for LE Audio, and familiarity with SBC, AAC, aptX, LDAC, or LC3 codecs.
  • Have deep experience shipping wireless features on Mac, Windows, or Linux-based platforms, and/or console SDK experience.
  • Have a proven track record of improving real-world performance and reliability under RF constraints.

Responsibilities

  • Own and develop firmware for gaming peripherals, providing technical leadership, system architecture, and execution across the firmware domain in collaboration with internal teams and external partners.
  • Design, implement, and debug Bluetooth/BLE features across RTOS and/or kernel drivers, systemd/D-Bus services, ALSA/ASoC, and codec and DSP drivers, including A2DP, HFP, and AVRCP.
  • Deliver robust pairing, bonding, and provisioning flows using GATT/GAP and LE Audio/LC3.
  • Optimize end-to-end audio latency, buffer sizing, and xrun/glitch elimination; manage clock drift and sample-rate conversion, jitter-buffer behavior, low-power idle/wake paths, coexistence, and nearby discovery.
  • Reconcile the wireless link clock against the codec’s I2S clock without audible drift or resampling artifacts, and support concurrent-path operation.
  • Instrument and analyze issues using packet captures and tooling, including ALSA/PipeWire debugging with pw-top, alsa-info, and tinyalsa; tracepoints and perf/eBPF; I2S/SoundWire logic-analyzer measurements; audio-analyzer measurements for THD+N, SNR, and frequency response; and btmon.
  • Drive interoperability and certification readiness for Bluetooth SIG, USB-IF, and Microsoft HLK, and resolve field issues with root-cause fixes.
  • Contribute OTA-safe configuration, telemetry, and diagnostics for fleet-scale operation.
  • Support manufacturing builds and per-unit acoustic calibration, and coordinate firmware activities during product bring-up.
  • Support products after launch.

Desired Qualifications

  • Integrate DSP features such as AEC, noise suppression, beamforming, sidetone, and spatial audio/HRTF.
  • Have host-side audio experience with WASAPI/APOs on Windows or CoreAudio on macOS.
  • Have experience with secure boot, signed images, and key management for OTA.
  • Have experience with battery-life profiling and power-state tuning, Yocto, or Buildroot.
  • Have direct ODM/CM engagement in Asia.
  • Have experience with Bluetooth audio SoC vendor stacks such as Qualcomm QCC, Airoha, Realtek, or Nordic RnF.
  • Have experience with proprietary 2.4 GHz link design, including custom TDMA or low-latency dongle protocols.
  • Have a passion for gaming, digital entertainment, and the consumer electronics industry.

About the Company

PlayStation

Develops games, hardware, and online services

PlayStation is the brand behind Sony Interactive Entertainment’s gaming hardware, services, and studios. It creates and sells game consoles and related devices, runs the online PlayStation Network and subscription services, and develops and publishes games through PlayStation Studios. The product set works as an ecosystem: a console for playing games, a network for online play, digital storefronts for buying games, and a large portfolio of first- and third-party games from its studios around the world. Compared with rivals, PlayStation relies on a long history of console generations, a big collection of exclusive games, and a global network of studios to offer unique experiences that are tied to its hardware and services. Its goal is to provide engaging, borderless play experiences for players worldwide, continually delivering new hardware, services, and games that bring people together.

Company size
Not listed
Company stage
Not listed
Total funding
Not listed
Headquarters
Japan
Founded
2008

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