Power Electronics 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.

This role is located on-site at one of our offices

Some roles require an office while others may be done remotely. This position is office-based, meaning regular in-person collaboration or use of office equipment is essential to maximize effectiveness for this team and/or position. Qualified applicants must live within commuting distance of our Santa Barbara, CA, Boston, MA or Louisville, KY office locations.

#LI-Onsite

Sonos seeks a Power Electronics Engineer to join the newly formed Portables Category, Mobile Power Systems Team. In this hands-on role, you will be responsible for some of the core analog and mixed-signal electronics at the heart of the industry's most innovative portable products like the recently launched Sonos Ace. In the process, you will work with some of the brightest minds in the business across multiple disciplines of hardware, software, radio, acoustics, WiFi, and Bluetooth technologies. This is an opportunity to join a high-performing team tasked with shaping the future of Sonos Portables from definition to launch.

What You'll Do

• Lead the development of new and innovative power electronic concepts to charge and power Sonos' Portable/Wearable products
• Identify and implement highly efficient wired and wireless charging solutions to deliver unmatched consumer experiences
• Develop new features and maximize the potential of new and existing technologies
• Debug complex low-level problems that may span interfaces between hardware and software
• Co-develop algorithms, state-transition diagrams/flowcharts, and analysis for each regime of operation
• Power Electronics Schematic and PCB layout design and review
• Define HW verification tests, develop new test methodologies, and derive test limits
• Work with development partners/peers to perform failure analysis and corrective actions
• Qualified applicants must be able to work from an office location for the majority of the work week

What You'll Need

Basic Qualifications

• BS or MS in EE, Physics, or related discipline with 3+ years of relevant experience
• Experience in power electronics product development - design concept, prototyping, product validation testing, launch, and product life cycle suppor
• Experience with Analog and Digital Signal Processing, Power Conversion, and Power Management ICs
• Experience with hardware design and integration, power semiconductor devices, magnetics, and thermal management
• Solid experience with electrical simulation and analysis tools such as SPICE and MATLAB/Simulink
• Strong written and verbal communication skills with experience articulating technical concepts in cross-functional teams
• Ability to work with people with different cultures and backgrounds in different locations and time zones

Preferred Qualifications:

• In-depth understanding of modern battery charging circuits, USB, and Qi/Qi2 standards
• Experience with Battery Fuel Gauges such as HW integration, programming and communication
• Power Management Unit (PMU) programming for battery charge algorithms, battery health monitoring and management, and various power modes for low-power battery-operated products with hands-on experience profiling, optimizing, and debugging PMUs
• Experience with non-standard wireless charging solutions
• Experience with embedded real-time operating systems
• Solid track record of shipping reliable, cost and power-efficient HW in the Wearable space
• Hands-on testing and debugging of embedded systems in a laboratory environment
• Exposure to acoustics and acoustic measurements
• Experience with audio ADC/DAC/CODEC and/or Class D amplifier circuits
• Understanding of tolerance and statistical fundamentals such as component tolerances, ripple, ADC error, etc.
• Embedded software design experience to understand the constraints and challenges of software implementation

Research shows that candidates from underrepresented backgrounds often don't apply for roles if they don't meet all the criteria. If you don't have 100% of the skills listed, we strongly encourage you to apply if interested.

Visa Sponsorship: Sonos is unable to sponsor or take over sponsorship of an employment visa for this role at this time. We ask that applicants be authorized to work for any US employer, both now and in the future.

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. The starting base pay for this role for all US candidates is between:

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 and its supplement. 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 accommodations@sonos.com and let us know the nature of your request and your contact information.