Senior Power Electronics Engineer

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

Job summary

Enphase Energy, a global energy tech company, is seeking a senior power electronics engineer for the Solid-State Transformer (SST) platform in Petaluma, CA. You will design high-density power modules, evaluate GaN devices, and collaborate with mechanical and controls teams to optimize packaging, cooling, and performance.

The role requires deep experience in electronics hardware design, modeling-to-prototype translation, and leadership across a multidisciplinary team.

Qualifications

• B.S., M.S., or Ph.D. in Electrical Engineering or closely related field.
• Typically 6+ years of electronics hardware/system design experience.
• Hands-on experience in full cycle of schematic capture, layout, and testing of power electronics.
• Proficiency with ECAD tools such as OrCAD, KiCad, or Altium.
• Experience co-designing with mechanical/thermal teams and familiarity with CAD tools.
• Ability to lead technical execution with autonomy and mentor others.

Responsibilities

• Design and develop power conversion circuits and magnetics for SST platform, optimizing power density and efficiency.
• Evaluate and integrate GaN devices and planar magnetics to increase throughput and reduce footprint.
• Translate modeling results to benchtop prototypes and reconcile theory with measurements.
• Drive design trade-offs across density, efficiency, thermal management, and cost per watt.
• Co-design with mechanical and thermal engineers to optimize packaging and cooling.
• Lead root-cause analysis and design iteration based on test data to improve density and reliability.

Skills

Electrical engineering

Mentoring engineers

Technical leadership

Testing and validation

Schematic capture/PCB layout

Education

B.S. in Electrical Engineering

M.S. in Electrical Engineering

Ph.D. in Electrical Engineering

Tools

OrCAD

KiCad

Altium

SolidWorks

Fusion 360

Job description

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.

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
• Senior Engineer: BS + 5 yrs | MS + 3 yrs | PhD + 1yr; Staff Engineer: BS + 8 yrs | MS + 6 yrs | PhD + 3 yrs; Sr. Staff Engineer: BS + 12 yrs | MS + 8 yrs | PhD + 5 yrs
• 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.