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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: Senior DSP Software Engineer (Job Code: AK0923)

JOB DETAILS:

Design and implement audio signal processing algorithms for Bluetooth communications, voice, and music processing. Develop, analyze, and refactor embedded DSP software for low-power or battery-powered Sonos products using resource-constrained embedded fixed- and floating-point DSP hardware platforms. Develop optimized, scalable and tunable DSP algorithm implementations using high-level languages (C, Python, Matlab) and low-level languages (fixed-point assembly). Design memory maps, balancing execution speed and memory trade-offs. Port algorithms across DSP hardware platforms, ensuring scalability and efficiency. Debug complex low-level problems that may span interfaces between hardware and software. Define feature requirements by collaborating with cross-disciplinary teams and planning development tasks with a deep understanding of the underlying algorithms, DSP platforms, and interconnections with the wider system. Profile DSP algorithms to optimize resource usage and support power management decisions. Collaborate with acoustics teams to create testing and tuning tools for audio processing software. Partner with QA teams to create test cases, stimuli, and validation tools. Must report to Sonos’ office in Louisville, KY when not working from home.

EDUCATION AND EXPERIENCE REQUIREMENTS:

Master’s degree in Electrical Engineering, Computer Science, Mathematics, or related field 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:

+ Embedded DSP software development experience.

+ Experience in developing signal processing software for low-power audio devices for applications, including Bluetooth audio codecs and music/voice processing pipelines on battery powered products.

+ Understanding of Bluetooth fundamentals and Bluetooth Classic and LE Codecs.

+ Experience with programming signal processing blocks on embedded DSPs using fixed-point C and/or assembly.

+ Experience in prototyping and tuning algorithms in Python and/or MATLAB.

+ Understanding of DSP fundamentals, including filtering, correlation, pitch detection, frequency transforms, and temporal and spectral noise shaping commonly used in voice and music processing.

+ Experience with C compilers, Git and audio signal processing libraries in Python and Matlab.

+ Experience in optimizing runtime DSP software to meet MIPS and memory targets by using hardware-specific intrinsics, vectorized algorithm implementations, and mathematical manipulations.

+ Experience with developing, debugging, and profiling DSP software on platforms, including Synopsys ARC EM DSPs, Qualcomm Kalimba DSPs, ARM Cortex M cores, or ON Semiconductor LPDSP32 DSPs.

+ Knowledge of fixed-point arithmetic and precision headroom challenges in audio processing.

+ Ability to identify, debug, and resolve audio artifacts in fixed-point DSP implementations.

+ Knowledge of perceptual audio quality measurement tools, including PEAQ and PESQ.

+ Experience articulating technical concepts in cross-functional teams.

OTHER: Salary: $131,000 per year.

JOB LOCATION:

10000 Shelbyville Road, Suite 110

Louisville, KY 40223

If offered employment, must have legal right to work in U.S.

**Must reference JOB CODE#: AK0923 when applying.

#LI-DNI

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

+ 12 weeks of paid Bonding Leave following the birth or adoption of a new child, plus up to an additional 12 weeks of Medical Leave for birthing parents under our Short Term Disability policy

+ 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!

For a holistic overview of our benefits, please visit sonosbenefits.com .

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.

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.

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.

Follow the links to review the EEO is the Law poster (https://www.dol.gov/ofccp/regs/compliance/posters/pdf/eeopost.pdf) and its supplement (http://www.dol.gov/ofccp/regs/compliance/posters/pdf/OFCCP\_EEO\_Supplement\_Final\_JRF\_QA\_508c.pdf) . 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 [email protected] and let us know the nature of your request and your contact information.