Senior Power Electronics Engineer (9828) Engineering Petaluma, CA, United States

Enphase Energy, Inc.; Petaluma (CA); On-site; USD 105,000 - 162,000; Full time

Benefits offered by this job

Bonus eligible

Equity

Benefits package

Job summary

Enphase Energy, Inc. seeks a power electronics engineer to advance the SST platform. You will design power conversion circuits and magnetics, integrate GaN devices, and translate models into bench prototypes for high-density, efficient power modules.

You’ll work with mechanical/thermal teams to optimize packaging and cooling, lead design iterations, and mentor junior engineers. This role is based in Petaluma, CA with competitive compensation and benefits.

Qualifications

• BS/MS/PhD in Electrical Engineering or related field.
• 6+ years in electronics hardware/system design, per role.
• Hands-on with schematic capture, layout and testing of power electronics.
• Experience with ECAD tools (OrCAD, KiCad, or Altium).
• Ability to translate models to bench performance and reconcile theory vs. practice.
• Familiarity with planar transformers and advanced power devices.
• Cross-disciplinary collaboration with mechanical/thermal teams and controls.
• Strong autonomous execution with mentoring responsibilities.

Responsibilities

• Design and develop power conversion circuits and magnetics for SST platform.
• Evaluate GaN devices and planar magnetics to boost throughput and reduce size.
• Convert modeling results into benchtop prototypes and close gaps with measurements.
• Balance power density, efficiency, thermal, and cost per watt to meet targets.
• Co-design packaging, cooling, and power density with mechanical/thermal teams.
• Lead root-cause analysis and iterative design improvements from test data.
• Mentor less experienced engineers and participate in design reviews.

Skills

Power electronics design

Schematic capture

PCB layout

Testing and validation

Modeling to bench translation

Power density optimization

Co-design with mechanical/thermal

Autonomy in technical execution

Mentoring junior engineers

Education

Bachelor's/Master's/Ph.D. in Electrical Engineering

Tools

OrCAD

KiCad

Altium

SolidWorks / Fusion 360

Job description

Enphase Energy is a global energy technology company and a leading provider of solar, battery, and electric vehicle charging products. Founded in 2006, our innovative microinverter technology revolutionized solar power, making it a safer, more reliable, and scalable energy source. Today, the Enphase Energy System enables users to make, use, save, and sell their own power. Enphase is also one of the most successful and innovative clean energy companies in the world, with more than 80 million products shipped across 160 countries.

Join our dynamic team designing and developing next-gen energy technologies and help drive a sustainable future!

About The Role

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.

What You Will Do

• 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

Who You Are and What You Bring

• B.S., M.S., or Ph.D. in Electrical Engineering or closely related field
• 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. Familiarity with a mechanical CAD tool such as SolidWorks, Fusion 360, or FreeCAD is a plus.
• 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

The base salary range for this position in Petaluma, CA is $105,000 to $162,000 and may vary based on experience, skills, and location.

This position is also eligible for bonus, equity, and benefits, with final compensation determined in accordance with applicable laws and internal equity.

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