Senior/Principal Power Electronics Engineer

The role

You will architect and own electrical power systems for subsea generation, conditioning, and energy delivery to shore. This involves designing power architectures from first principles, developing high-reliability PCBAs, and driving systems from concept to offshore deployment.

What you will do

• Architect and design subsea power conversion and distribution systems
• Select and justify converter topologies for AC-DC, DC-DC, and DC-AC systems
• Design high-power PCBAs including schematics, magnetics, and protection circuitry
• Own PCB layout review for EMI, thermal paths, and high di/dt loops
• Collaborate on packaging, heat rejection, and pressure-tolerant enclosures
• Define and implement system-level protection philosophy
• Develop fault trees and failure containment strategies
• Lead board bring-up, lab validation, and full-load testing
• Drive root cause investigations for converter instability and field failures
• Own the full system lifecycle from fabrication to production readiness

Required qualifications

• 6+ years of experience designing and shipping power electronics hardware in demanding or high-reliability environments
• Demonstrated experience architecting complete power systems
• Deep understanding of power conversion fundamentals
• Proven experience designing high-power PCBAs
• Strong working knowledge of grounding, shielding, EMI mitigation, creepage and clearance, and high di/dt layout practices
• Experience implementing and validating protection strategies
• Hands-on lab experience bringing up high-power hardware and performing fault injection
• Demonstrated ownership of hardware through full lifecycle
• Ability to think from first principles
• High ownership mentality
• Strong cross-disciplinary communication skills

Nice to have

• Experience with high-voltage systems or DC buses

Benefits

• Health, Dental, and Vision insurance coverage
• Flexible PTO including 12 paid company holidays
• Travel to deployment sites in Pacific Northwest, Hawaii, Iceland, Japan, New Zealand, and the Azores
• Participate in sea trials and deployment operations
• Company-sponsored recreational dive certification
• Access to the company boat
• Free meals and snacks

About the company

Endurance is building the world's first modular subsea geothermal power plants, converting thermal resources under the ocean into baseload power. The founding team includes veterans from SpaceX, Helion, Blue Origin, and Apple.