Senior/Principal Electrical Engineer

The role

You will architect, design, and validate low-voltage control and instrumentation systems for subsea energy generation. This role involves the full embedded electrical stack including microcontrollers, analog sensor interfaces, and battery management systems.

What you will do

• Architect and design low-voltage control and instrumentation systems
• Select and implement microcontrollers and embedded Linux processors
• Design analog sensor front ends for pressure, temperature, flow, and shaft speed
• Integrate battery management systems and design low-voltage power distribution
• Architect and implement communication systems including Ethernet, fiber optic, and serial protocols
• Produce electrical harness drawings and coordinate with manufacturing
• Define and implement fault-tolerant design strategies
• Develop fault trees and failure containment strategies
• Lead board bring-up, lab validation, and system-level testing
• Drive root cause investigations for failures and field anomalies

Required qualifications

• 6+ years of experience designing and shipping embedded or mixed-signal hardware in demanding or high-reliability environments
• Generalist hardware instincts across microcontrollers, analog signal chains, low-voltage power, and digital communications
• Demonstrated experience architecting complete embedded systems
• Hands-on experience designing analog sensor front ends
• Working knowledge of communication protocols and physical layers including Ethernet, fiber optic, RS-485, CAN, and SPI/I2C
• Experience with battery management systems or low-voltage DC power distribution for electronics
• Ability to produce harness drawings and work directly with CM or contract manufacturers
• Hands-on lab experience bringing up embedded hardware and debugging
• Experience designing for harsh environments
• Ability to think from first principles and make sound engineering tradeoffs
• High ownership mentality
• Strong cross-disciplinary communication skills

Nice to have

• Prior subsea, marine, or offshore hardware experience
• Background in aerospace, robotics, or medical device hardware development

Benefits

• Health, Dental, and Vision insurance coverage
• Flexible PTO including 12 paid company holidays
• Travel to deployment sites along oceanic ridges
• Participate in sea trials and deployment operations
• Work with technology spanning high-power electronics, marine systems, and clean energy
• 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 vast thermal resources under the ocean into gigawatts of baseload power.