Senior Real-Time Embedded Systems Engineer

Sonos, Inc.; Seattle (WA); Hybrid; USD 140,000 - 210,000; Full time

Benefits offered by this job

Medical, Dental, and Vision Insurance

401(k) with company match

Open Time Off (OTO)

Paid holidays

Disability, Life, and AD&D Insurance

Mental health benefits

Employee discount and Sonos Radio HD

Job summary

Sonos, Inc. in Seattle is seeking an experienced firmware/system software engineer to design and build real-time audio system software for embedded platforms.

You will work on SMP/AMP architectures, bootloaders, Linux, and driver development, collaborating across hardware and software teams to deliver robust, high-performance solutions. The role requires 5+ years in embedded firmware, strong C/C++, experience with U-Boot, Linux kernels, and Yocto/OpenEmbedded; familiarity with USBPD, HDMI, and

Qualifications

• Bachelor’s degree in a relevant field.
• 5+ years of professional experience developing firmware/system software for embedded systems.
• Strong proficiency in C/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.

Responsibilities

• Design and implement real-time system software architectures leveraging SMP and AMP for embedded audio systems.
• Bring up, debug, and maintain bootloader (U-Boot) and embedded Linux across new hardware platforms.
• Lead early board bring-up and debug of new PCBs using ARM SoCs and microcontrollers.
• Integrate vendor SDKs, BSP components, and OS modules into the build and release process.
• Develop and maintain HAL libraries enabling clean interfaces between hardware and user space.
• Identify platform gaps relative to hardware capabilities and product requirements; propose improvements.
• 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.

Skills

C/C++

Python

Embedded Linux

Kernel internals

Device drivers

Education

Bachelor’s in Computer Engineering, Electrical Engineering, Computer Science or related field

Tools

U-Boot

GCC

Binutils

GDB

Yocto/OpenEmbedded

Job description

Sonos, Inc. in Seattle is seeking an experienced firmware/system software engineer to design and build real-time audio system software for embedded platforms.

You will work on SMP/AMP architectures, bootloaders, Linux, and driver development, collaborating across hardware and software teams to deliver robust, high-performance solutions. The role requires 5+ years in embedded firmware, strong C/C++, experience with U-Boot, Linux kernels, and Yocto/OpenEmbedded; familiarity with USBPD, HDMI, and