Audio Firmware Engineer (Bluetooth)

Location: United States, San Mateo, CA

Salary: $193,300–$289,900 USD annually

Company

hirify.global develops the PlayStation brand, including gaming hardware, network services, entertainment products, and consumer electronics.

What you will do

• Own and develop firmware for gaming peripherals, including system architecture, technical leadership, and execution.
• Design, implement, and debug Bluetooth and BLE features across RTOS, kernel drivers, systemd/D-Bus services, ALSA/ASoC, codec, and DSP drivers.
• Build pairing, bonding, provisioning, GATT/GAP, and LE Audio/LC3 flows.
• Optimize audio latency, buffering, clock synchronization, sample-rate conversion, jitter handling, low-power behavior, coexistence, and discovery.
• Analyze packet captures, traces, performance data, I2S/SoundWire signals, and audio measurements; resolve interoperability, certification, and field issues.
• Support OTA-safe configuration, telemetry, diagnostics, manufacturing builds, acoustic calibration, product bring-up, and post-launch products.

Requirements

• Highly proficient in C/C++ with scripting experience in Python or shell.
• Systems debugging experience with 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, and PACS for LE Audio.
• Codec familiarity with SBC, AAC, aptX, LDAC, and LC3.
• Deep experience shipping wireless features on Mac, Windows, or Linux-based platforms and/or Console SDK experience.
• Experience with Bluetooth audio SoC vendor stacks such as Qualcomm QCC, Airoha, Realtek, or Nordic RnF; proprietary 2.4 GHz link design is also relevant.
• Proven record of improving real-world performance and reliability under RF constraints; interest in gaming, digital entertainment, and consumer electronics.

Nice to have

• DSP feature integration, including AEC, noise suppression, beamforming, sidetone, spatial audio, or HRTF.
• Host-side audio experience with WASAPI/APOs on Windows or CoreAudio on macOS.
• Secure Boot, signed images, key management for OTA, battery profiling, and power-state tuning.
• Yocto or Buildroot experience.
• Direct ODM/CM engagement in Asia.

Culture & Benefits

• Small-team environment with a startup-like setting inside a large organization.
• Hybrid working policy may affect the base pay range and individual compensation.
• Medical, dental, vision, matching 401(k), paid time off, wellness program, and Sony product discounts.
• Potential eligibility for a bonus package.
• Background checks are conducted at the offer stage.