Amperesand

Senior Power Electronics Design Engineer, Magnetics

San Francisco, California, United States · Senior

Sponsorship not specified$175k-$205kDetected 86 days ago

NLPFEAEMI/EMCHardware DesignPower ElectronicsResearchCommunication

About the role

Company Overview Amperesand is reinventing how the world powers its most critical systems.
Electricity demand is skyrocketing, driven by AI factories, electric vehicles, and modern industrial growth.
Energy supply is shifting to incorporate a more diverse mix of resources - including solar, gas, and batteries - at a massive scale.

Design isolated and non-isolated converter stages using advanced topologies such as multi-level converters, cascaded H-bridges, Dual Active Bridge (DAB) and ensuring robust protection and safety compliance for MV/LV systems
Perform trade-off analysis and optimization of power conversion hardware to balance between loss, cost and size across Semiconductors, Magnetics and Cooling components
Design magnetics to meet applicable safety, isolation, and thermal standards
Design and verify high-voltage isolation strategies using magnetically and optically isolated signal and power paths across LV-MV domains
Use FEA simulations to design magnetics and guide high-power high-frequency PCBA designs
Work in close coordination with mechanical designers, manufacturing and test engineers to own the complete development cycle
Own the design validation of the magnetics components to validate performance targets, isolation requirements
Amperesand is building hardware and software that rewrites this broken power infrastructure playbook to support a new era of energy abundance.

Knowledge of Medium Voltage insulation coordination, hands-on experience with Hi-pot, Partial Discharge and Basic Impulse Test
Knowledge of EMI/EMC test Standards and Electrical Safety (IEC, UL) Standards.
Willingness and ability to travel up to 10% including internationally
M.S. or Ph.D. in Power Electronics, Electromagnetics or related field
4+ years' experience in magnetics design and in power conversion design
Strong fundamentals in electromagnetics and material
Experience working with SiC/GaN devices in high power density designs
Good understanding of loss mechanisms in semiconductor devices and high-frequency magnetics
Strong analytical skills for interpreting simulation and test data to guide design revisions.
Excellent written and verbal communications in English

$175,000-$205,000/annual DOE and location
Pay Disclosure & Benefits
Competitive Salary + Incentive Stock Options
Compensation will be determined based on experience, location, and other factors permitted by law.

We are facing a once-in-a-generation opportunity for infrastructure disruption.
Scalable in-house advanced manufacturing capability is our foundation for meeting timeline and quality expectation to serve infrastructure customers around the world.

Amperesand is an equal opportunity employer and complies with all applicable federal, state, and local fair employment practices laws.
All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, ancestry, sex, sexual orientation, gender, gender expression, gender identity, genetic information or characteristics, physical or mental disability, marital/domestic partner status, age, military/veteran status, medical condition, or any other characteristic protected by law.
Amperesand is also committed to working with and providing reasonable accommodations to individuals with disabilities.
Please let your recruiter know if you need an accommodation at any point during the interview process.

This listing is sourced directly from Amperesand's careers page and normalized into a canonical job model.