Sr. Power Electronics Design Engineer, Magnetics

Company Overview

Amperesand is disrupting industrial power with the first commercialized Solid State Transformer systems. Solid State Transformers systems are much more than a transformer replacement, enabling numerous advanced features to unlock solutions for data centers, EV charging, renewables, microgrids, and industrial installations. We are looking for mission driven team members passionate about making amazing products for worldwide electrification at maximum acceleration. Amperesand is building a global company and looking for talent across our geographies.

Responsibilities

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 Qualifications

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 properties

Experience working with SiC/GaN devices in high power density designs

Good understanding of loss mechanisms in semiconductor devices and high-frequency magnetics

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.

Strong analytical skills for interpreting simulation and test data to guide design revisions.

Excellent written and verbal communications in English

Willingness and ability to travel up to 10% including internationally Please note: This role requires working on-site 5 days a week. We do not offer hybrid or remote options.

Pay Disclosure & Benefits

Compensation will be determined based on experience, location, and other factors permitted by law.

The benefits outlined below apply exclusively to employees located in the United States.

Competitive Salary + Incentive Stock Options

Medical, vision, and dental benefits for employees and their dependents, effective from the start of hire

Company paid Basic Life, AD&D, short-term and long-term disability insurance

Employees receive paid time off (PTO), paid sick days, and paid company holidays so they can rest, recharge, and take care of their health and personal needs.

Commuter Benefits

6-12 weeks 100% paid parental leave

Singapore-based employees receive benefits in accordance with local government provisions.

Equal Employment Opportunity

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.