Senior Electromechanical Engineer – Subsea Power Systems

Endurance Energy; Seattle (WA); On-site; USD 140,000 - 200,000; Full time

Benefits offered by this job

Health, Dental, and Vision insurance

Flexible PTO including holidays

Global fieldwork opportunities

Dive certification

Company boat access

Job summary

Endurance Energy is building modular subsea geothermal power plants and seeks a Senior Electromechanical Hardware Engineer to own end-to-end hardware, from electronics packaging to actuators and seabed integration. You will design, model, test, and qualify components like high-power enclosures, connectors, and seals, collaborating with power electronics engineers.

You will join a small, fast-moving team in Seattle, contributing to a first-of-its-kind grid-connected subsea plant and gaining

Qualifications

• Bachelor’s degree in mechanical engineering, electrical engineering, or a related engineering discipline.
• 6+ years of professional experience designing electromechanical hardware for demanding environments.
• Ownership of at least one electromechanical component from concept through qualification and fielded use.

Responsibilities

• Own specific electromechanical hardware end to end: electronics cooling and enclosures, busswork and connectors, or actuators and mechanisms
• Design high-power electrical interfaces: busswork, wet-mate and dry-mate connectors, contact and insulator design
• Design subsea packaging for high-power electronics: fluid-filled and pressure-compensated enclosures, dielectric fluid selection, penetrators, and feedthroughs
• Design electronics cooling and thermal management: heat rejection from converter stacks through the enclosure to seawater, cold plates, and immersion cooling
• Design subsea actuators, motors, pumps, and mechanisms: dynamic and rotating seals, magnetic couplings, position feedback, and fail-safe behavior
• Translate electrical requirements into mechanical designs, working with the power electronics engineers
• Design and build test setups for high voltage under hydrostatic pressure, insulation resistance, partial discharge, thermal performance, and long-duration immersion
• Lead root-cause investigations on connector, enclosure, and actuator failures and implement corrective actions
• Define interfaces with the valves and primary structures owned by your peers
• Work directly with machine shops, molders, and specialty suppliers on contacts, insulators, seals, and precision mechanisms
• Contribute to plant-level electrical architecture and packaging decisions alongside our principal engineers
• Create detailed 3D CAD models, drawings, and tolerance stacks for electromechanical assemblies

Skills

Electromechanical hardware design

Subsea hardware experience

High-voltage design & testing

Thermal management for power systems

3D CAD modeling

Project ownership

Electrical-Mechanical interface design

Education

Bachelor's degree in mechanical or electrical engineering

Tools

SolidWorks/Creo

Finite element analysis

Job description

Endurance Energy is building modular subsea geothermal power plants and seeks a Senior Electromechanical Hardware Engineer to own end-to-end hardware, from electronics packaging to actuators and seabed integration. You will design, model, test, and qualify components like high-power enclosures, connectors, and seals, collaborating with power electronics engineers.

You will join a small, fast-moving team in Seattle, contributing to a first-of-its-kind grid-connected subsea plant and gaining