Senior System Software Development Engineer

Jobtailor

Massachusetts

On-site

USD 140,000 - 190,000

Full time

3 days ago

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Job summary

Jobtailor in Massachusetts seeks a senior firmware engineer to design and implement real-time system software for embedded audio, focusing on SMP/AMP architectures, U-Boot, and Linux kernel drivers. You will lead board bring-up and debug across new hardware platforms, working with ARM SoCs and WiSoCs.

You will also integrate vendor SDKs, BSP components, and OS modules into build and release processes, develop HAL interfaces, and optimize software for resource-constrained environments while

Qualifications

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

Responsibilities

Design and implement real-time system software architectures for embedded audio systems using SMP and AMP approaches.

Skills

Embedded Linux

C/C++ Programming

Device Driver Development

U-Boot Debugging

Linux Kernel Internals

Concurrency & SMP

Education

Bachelor’s in Computer Engineering, Electrical Engineering, Computer Science

Tools

GCC

GDB

Binutils

Logic Analyzers

Oscilloscopes

Yocto/OpenEmbedded

Job description

Design and implement real-time system software architectures using SMP and AMP approaches 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 of new PCBs using ARM SoCs, WiSoCs, BT SoCs, and microcontrollers
Develop and maintain Linux kernel drivers across subsystems, interfaces, and peripherals
Integrate vendor SDKs, BSP components, and OS modules into build and release processes
Develop and maintain HAL libraries enabling clean, testable hardware-to-user-space interfaces
Identify platform gaps relative to hardware capabilities and product requirements; propose and deliver improvements
Contribute to BSP validation and system-level debugging across hardware/software 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
Support hardware engineering teams with technical debugging and contribute to OS/platform modernization efforts

Requirements

Bachelor’s in Computer Engineering, Electrical Engineering, Computer Science or related field
At least 8+ years of professional experience developing firmware/system software for embedded systems
Strong proficiency in C/C++
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 toolchain and debug tooling, such as gcc, binutils, and gdb
Experience designing and developing software/firmware using Free-RTOS and developing bare-metal applications for microcontrollers
Strong debugging capability using JTAG, logic analyzers, and oscilloscopes
Proven ability to build performance-critical software in resource-constrained environments
Proficiency with Yocto Project / OpenEmbedded workflows
Strong 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), and Bluetooth/BLE
Preferred: Experience with HDMI subsystem, prior hardware design exposure, low-level optimization, USBPD and USB PD ICs, and Agile development environments
Must be authorized to work for any US employer, both now and in the future; Sonos is unable to sponsor or take over sponsorship of an employment visa

Core Competencies

Demonstrates expertise in designing and implementing real-time system software architectures for embedded audio systems, with strong proficiency in C/C++ and extensive experience in embedded Linux and device driver development. Capable of leading hardware bring-up, debugging, and integrating vendor SDKs while ensuring performance in resource-constrained environments.

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