Senior Embedded Systems Engineer - Real-Time Audio

Sonos LLC; Boston, Northern (MA, KY); Hybrid; USD 140,000 - 190,000; Full time

Benefits offered by this job

Medical, Dental, and Vision Insurance

401(k) plan with company matching

Open Time Off policy

Paid holidays

Disability Insurance

Life Insurance

Employee discount

Job summary

Sonos LLC in Boston or Seattle is seeking an experienced firmware/system software engineer to design and implement real-time architectures for embedded audio systems. The role emphasizes SMP/AMP approaches, bootloader work, and driver development.

You will bring up hardware, integrate SDKs and BSPs, develop HAL libraries, and collaborate with silicon vendors to resolve platform issues. A strong foundation in C/C++, Linux, and Yocto/OpenEmbedded is required, with hands-on debugging using JTAG,

Qualifications

• Bachelor’s in Computer Engineering, Electrical Engineering, Computer Science or related field.
• At least 5 years of professional experience developing firmware/software for embedded systems.
• Strong proficiency in C/C++ (Python is a plus).
• Experience with embedded Linux, kernel internals, and device driver development.
• Experience bringing up and debugging systems using U-Boot and common boot flows.

Responsibilities

• Design and implement real-time system software architectures for embedded audio systems using SMP and AMP.
• Bring up, debug, and maintain bootloader (U-Boot) and embedded Linux across new hardware.
• Lead early board bring-up and debug of PCBs using ARM SoCs, WiSoCs, BT SoCs, and microcontrollers.
• Integrate vendor SDKs, BSP components, and OS modules into the build and release process.
• Develop HAL libraries enabling clean, testable interfaces between hardware and user space.
• Identify platform gaps relative to hardware capabilities and product requirements; propose improvements to enable faster prototyping and evaluation of new hardware.
• Contribute to BSP validation and system-level debugging across HW/SW boundaries.
• Define, execute, and document unit and integration testing for system software components.
• Partner with silicon and component vendors to coordinate support and resolve platform issues across CPU/radio SoCs, MCU/PIC, NPU/GPU, and peripheral devices.
• Support hardware engineering teams with deep technical debugging and contribute to OS/platform modernization efforts.

Skills

C/C++

Embedded Linux

U-Boot

Kernel internals

Device drivers

JTAG debugging

GDB debugging

Yocto Project

OpenEmbedded

Education

Bachelor's in Computer Engineering / Electrical Engineering / Computer Science or related field

Tools

GCC

Binutils

GDB

Yocto Project

OpenEmbedded

Job description

Sonos LLC in Boston or Seattle is seeking an experienced firmware/system software engineer to design and implement real-time architectures for embedded audio systems. The role emphasizes SMP/AMP approaches, bootloader work, and driver development.

You will bring up hardware, integrate SDKs and BSPs, develop HAL libraries, and collaborate with silicon vendors to resolve platform issues. A strong foundation in C/C++, Linux, and Yocto/OpenEmbedded is required, with hands-on debugging using JTAG,