DSP Software Engineer

At Sonos we want to create the ultimate listening experience for our customers and know that it starts by listening to each other. As part of the Sonos team, you’ll collaborate with people of all styles, skill sets, and backgrounds to realize our vision while fostering a community where everyone feels included and empowered to do the best work of their lives. JOB TITLE: DSP Software Engineer (Job Code: MK0711) JOB DETAILS: Responsible for the real-time audio, DSP, and rendering software across Sonos products through expertise in signal processing, embedded systems, and software architecture and strong proficiency in Rust, C++, and Python. Define requirements, write design documents, ensure acceptance criteria, and maintain roadmaps in coordination with cross-functional partners. On the implementation side, design and build modular real-time audio and DSP components in Rust and C++, making calls on architecture, performance, and portability across processors and operating environments. This includes integrating and optimizing machine learning models for audio workloads covering classification, enhancement and spatial processing on embedded platforms, as well as bringing in new multi-channel audio formats, codecs/decoders, and DSP algorithms. Design hard real-time software pipelines with patterns and interfaces that work across the product family, and work with Sonos-native mechanisms for system parameter control. Debug audio routing, timing, and synchronization problems across wireless networks, cross-domain issues touching DSP algorithms, embedded RTOS/Linux systems, wireless audio transport, and hardware. Own the testing and validation practice by building DSP simulation environments and software test frameworks in Python across diverse architectures, define testing strategy using GTest and Rust frameworks, and improve CI practices. Collaborate closely with acoustics, networking, hardware, application software, and audio system engineers. Set engineering standards and mentor engineers on the team and in partner groups. EDUCATION AND EXPERIENCE REQUIREMENTS: Master’s degree (or foreign equivalent) in Electrical Engineering, Computer Engineering, Computer Science, or Acoustic Engineering plus 2 years of experience in the offered position or related position. SPECIAL REQUIREMENTS: Must possess expertise/knowledge sufficient to adequately perform the duties of the job being offered. Expertise/knowledge may be gained through employment experience or education. Such expertise/knowledge cannot be "quantified" by "time". Required expertise/knowledge includes: Understanding of digital signal processing concepts, including filtering, sampling, latency, and numeric representation. Experience with Rust, C++, and Python for implementing DSP algorithms, automating audio tests, and validating software. Experience designing and validating real-time DSP audio systems for consumer electronics. Experience with real-time systems, embedded Linux, and RTOS environments. Experience evaluating and optimizing embedded DSP algorithms using MATLAB and Simulink. Experience integrating and optimizing machine learning models for audio on embedded systems, including classification, enhancement, spatial processing, and ML/DSP hybrid techniques. Knowledge of industry audio formats, codecs/decoders, and metadata, including Dolby Atmos, AAC, FLAC, Opus, OGG, MP3, and WAV. Experience creating DSP visualization or modeling tools in C++ for real-time audio development. Skilled in assessing and profiling end-to-end audio pipeline latency and system performance, utilizing tools that include Adobe Audition for critical listening analysis. Experience conducting audio measurements and analysis using professional electroacoustic test equipment, including audio analyzers and oscilloscopes. Experience developing and integrating automated audio test workflows into CI/CD systems, which include Jenkins and Docker. Experience leading project tasks for audio system development and validation, and coordinating team efforts for software feature delivery. OTHER: Salary: $131,082 per year JOB LOCATION: Sonos, Inc. 2 Avenue De LaFayette Boston, MA 02111 If offered employment, must have legal right to work in U.S. **Must reference JOB CODE#: MK0711 when applying. #LI-DNI Your profile will be reviewed and you'll hear from us once we have an update. At Sonos we take the time to hire right and appreciate your patience. At Sonos we consider a wide range of factors when determining compensation, which may lead individual compensation to vary depending on job related qualifications, skills, and experience. All full time employees are eligible for merit increases, discretionary bonuses, and equity. Our job postings may span more than one career level and the base pay range may be modified in the future based on changing market conditions. Please note that compensation details listed in US job postings reflect the base salary only, and do not include bonus, equity, or benefits. We also offer a comprehensive benefits program with choice and flexibility in mind to help support the health, wealth, and overall well-being of our employees. Regular full time employees in the US are eligible for benefits on day one, including: Medical, Dental, and Vision Insurance A 401(k) plan with company matching and immediate vesting An Open Time Off policy (OTO) so you have maximum opportunity to disconnect and recharge, with no tenure-based vacation accruals required 80 hours of sick time upon hire, refreshed annually Up to 12 paid holidays per calendar year Sonos offers a generous paid leave program for new parents or to care for a family member with a serious health condition, as well as short- and long-term disability for your own medical condition. Company-paid Disability, Life, and AD&D Insurance Voluntary benefits, including Voluntary Life, AD&D, Accident, and Pet Insurance Mental health benefits to support your holistic well-being A generous employee discount program & Sonos Radio HD - on us! Note: No amount of pay is considered to be wages or compensation until such amount is earned, vested, and determinable. The amount and availability of any bonus, benefits, or any other form of compensation and benefits that are allocable to a particular employee remains in the Company's sole discretion unless and until paid and may be modified at the Company’s sole discretion, consistent with the law. Notice to U.S. Job Applicants: Sonos is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, and other legally protected characteristics. Sonos is committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process, please send an e-mail to View email address on click.appcast.io and let us know the nature of your request and your contact information. Sonos is a sound experience company. We connect millions of listeners all around the world to the content they want, where and how they want it. Since inventing multiroom wireless audio in 2005, we have continuously innovated the listening experience, designing hardware and software that celebrates sound, empowers our customers, and brings the home to life. Our team is made up of passionate players united by a culture of respect, transparency, collaboration, and ownership who want to inspire the world to listen better. Interested in a career at Sonos but don’t see the right role for you today? Join the Sonos Talent Community to stay connected on new openings, events, and career opportunities that match your interests. Sonos takes your privacy seriously and is committed to protecting your personal data. To learn more, please review the Sonos Recruiting Privacy Notice. This Notice explains how we collect, use and protect your personal information in connection with our recruitment process.