1 day ago
Boston, MA, USA or Seattle, WA, USASenior
Base Salary
$165k - $206k/yr
Responsibilities
- Design and implement real-time system software architectures using SMP and AMP for embedded audio systems.
- Bring up, debug, and maintain U-Boot and embedded Linux on new hardware platforms.
- Lead board bring-up and debugging for PCBs using ARM SoCs, WiSoCs, Bluetooth SoCs, and microcontrollers.
- Develop and maintain Linux kernel drivers, HAL libraries, BSP components, and OS modules.
- Integrate vendor SDKs and BSP components into build and release processes.
- Identify platform gaps and deliver improvements for hardware prototyping and evaluation.
- Define and execute unit and integration testing for system software components.
- Coordinate with silicon and component vendors to resolve platform issues across SoCs, MCUs, NPUs, GPUs, and peripherals.
- Support hardware engineering teams with technical debugging and OS/platform modernization.
Requirements
- Bachelor’s degree in Computer Engineering, Electrical Engineering, Computer Science, or a related field.
- At least 8 years of professional experience developing firmware or system software for embedded systems.
- Strong proficiency in C and C++; Python is a plus.
- Significant experience with embedded Linux, kernel internals, and device driver development.
- Experience with U-Boot, common boot flows, toolchains, and debugging tools such as gcc, binutils, and gdb.
- Experience developing with FreeRTOS and building bare-metal applications for microcontrollers.
- Strong debugging skills using JTAG, logic analyzers, and oscilloscopes.
- Experience building performance-critical software in resource-constrained environments.
- Proficiency with Yocto Project and OpenEmbedded workflows.
- Strong understanding of Linux execution contexts, concurrency, locking, mutexes, SMP behavior, and kernel/user boundaries.
- Familiarity with DDR, NAND, PCIe, Ethernet, USB, SPI, I2C, UART, I2S, TCP/IP, Wi-Fi, and Bluetooth/BLE.
- Preferred experience with HDMI, including Video, ARC/eARC, and CEC; hardware design, schematics, datasheets, low-level optimization, USBPD, and USB PD IC development.
- Experience working in Agile development environments is preferred.
Benefits
- Hybrid work in a Sonos office four days per week in Boston, MA, Glasgow, UK, or London, UK.
- US regular full-time employees are eligible for medical, dental, and vision insurance from day one.
- 401(k) plan with company matching and immediate vesting.
- Open Time Off policy and 80 hours of sick time upon hire, refreshed annually.
- Up to 12 paid holidays per calendar year.
- Paid leave for new parents or family caregiving, plus short- and long-term disability coverage.
- Company-paid disability, life, and AD&D insurance.
- Voluntary life, AD&D, accident, and pet insurance.
- Mental health benefits, employee discounts, and Sonos Radio HD.
About Sonos
Sonos designs and sells wireless speakers, soundbars, subwoofers, and companion software for multi-room home audio, serving consumers who want whole-home music and TV sound. Its business model centers on consumer hardware sales supported by an app ecosystem and integrations with major streaming services. Founded in 2002 and headquartered in Santa Barbara, California, Sonos is publicly traded on Nasdaq under the ticker SONO.