1 day ago
Boston, MA, USA or Seattle, WA, USASenior
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 across new hardware platforms.
- Lead early board bring-up and debug new PCBs using ARM SoCs, WiSoCs, Bluetooth SoCs, and microcontrollers.
- Integrate vendor SDKs, BSP components, and OS modules into build and release processes.
- Develop and maintain HAL libraries connecting hardware with user space.
- Identify platform gaps and deliver improvements for faster hardware prototyping and evaluation.
- Contribute to BSP validation and system-level debugging across hardware and software boundaries.
- Define, execute, and document unit and integration testing for system software components.
- Coordinate with silicon and component vendors to resolve issues across processors, radios, MCUs, NPUs, GPUs, and peripheral devices.
- 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 5 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 bringing up and debugging systems using U-Boot and common boot flows.
- Experience with HDMI subsystems, including video, ARC/eARC, and CEC, is preferred.
- Prior hardware design exposure and ability to read schematics and datasheets are preferred.
- Familiarity with low-level optimization, performance tuning, USB Power Delivery, and USB PD IC development is preferred.
- Experience with GCC, binutils, GDB, FreeRTOS, bare-metal microcontroller applications, Yocto Project, and OpenEmbedded is preferred.
- Strong debugging capability with JTAG, logic analyzers, and oscilloscopes.
- Experience building performance-critical software in resource-constrained environments, including high-speed peripheral drivers.
- Understanding of Linux execution contexts and concurrency, including locking, mutexes, SMP behavior, and kernel/user boundaries.
- Familiarity with DDR, NAND, PCIe, Ethernet, USB, SPI, I2C, UART, I2S, TCP/IP, Wi-Fi, 802.11, Bluetooth, and BLE.
Benefits
- Hybrid work arrangement based in the Boston or Seattle office, with four days per week in the office.
- Medical, dental, and vision insurance for eligible US full-time employees beginning on day one.
- 401(k) plan with company matching and immediate vesting.
- Open Time Off policy with no tenure-based vacation accrual requirement.
- 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 discount program, and Sonos Radio HD.
- Sonos is unable to sponsor or take over sponsorship of an employment visa for this role.
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.