Sr. Power Electronics Design Engineer, Magnetics

Amperesand • San Francisco, CA

2d • Onsite

About The Position

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.

Requirements

• 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.

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

Benefits

• 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.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level