Senior Power Electronics Engineer

Enphase Energy•Petaluma, CA

1d•$105,000 - $162,000

About The Position

This position sits within the core Engineering R&D group focused on our Solid-State Transformer (SST) platform. Our team is responsible for defining and delivering the next-generation power module, with higher power density to reduce footprint and thermal load. We're looking for a technically deep power electronics engineer focused on increasing efficiency while reducing cost per watt.

Requirements

B.S., M.S., or Ph.D. in Electrical Engineering or closely related field
Engineer: BS + 3 yrs | MS +1 yr; Senior Engineer: BS + 5 yrs | MS + 3 yrs | PhD + 1yr
Typically, 6+ years of electronics hardware/system design experience (or equivalent depth of experience)
Hands-on experience in the full cycle of schematic capture, layout, and testing of power electronics, particularly if focused on power density
Proficiency with one or more ECAD tools such as OrCAD, KiCad, or Altium
Ability to translate modeling and simulation to benchtop performance and be able to reconcile differences between theory and practice
Familiarity with advanced power semiconductor devices and magnetics (particularly planar transformers)
Experience co-designing power electronics with mechanical and thermal engineering teams, balancing electrical performance against packaging and cooling constraints.
Ability to lead technical execution of significant power electronics designs with a high degree of autonomy, including digital controls and automation for testing, escalating major trade-offs as needed
Experience mentoring less experienced engineers and contributing to technical design reviews within the team

Nice To Haves

Familiarity with a mechanical CAD tool such as SolidWorks, Fusion 360, or FreeCAD is a plus.

Responsibilities

Design and develop power conversion circuits and magnetics for the SST platform, optimizing for power density, efficiency, and thermal performance
Evaluate and integrate advanced power semiconductor devices (particularly, GaN) and planar magnetics to increase power throughput while shrinking module footprint
Translate modeling and simulation results into benchtop prototypes, and reconcile differences between predicted and measured performance
Drive design trade-offs across power density, efficiency, thermal management, and cost per watt to meet next-generation product targets
Co-design with mechanical and thermal engineering to jointly optimize packaging, cooling, and power density, and collaborate with controls engineering to integrate power modules into the SST platform
Lead root-cause analysis and design iteration based on test data to continuously improve power density and reliability