Senior Subsea Electrical Engineer: Embedded Systems Lead

Endurance Energy; Seattle (WA); On-site; USD 120,000 - 200,000; Full time

Benefits offered by this job

Health, Dental, Vision insurance

Flexible PTO

Global fieldwork

Hands-on sea trials

Cutting-edge development

Equity opportunity

Dive certification

Employee meals and more

Job summary

Endurance Energy is hiring a Senior/Principal Electrical Engineer in Seattle to architect, design, and validate low-voltage control and instrumentation for subsea energy generation. You will own the full hardware stack from schematics to field performance analysis, collaborating with mechanical, controls, and offshore teams.

Ideal candidates bring 6+ years of embedded hardware experience in harsh environments, hands-on bring-up, and a track record of delivering robust, production-ready systems

Qualifications

• 6+ years of experience designing and shipping embedded or mixed-signal hardware in demanding or high-reliability environments.
• Generalist hardware instincts — comfortable across microcontrollers, analog signal chains, low-voltage power, and digital communications.
• Demonstrated experience architecting complete embedded systems, not just individual boards or subcircuits.
• Hands-on experience designing analog sensor front ends including signal conditioning, filtering, and precision measurement.
• 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 on cable and connector selection.
• Hands-on lab experience bringing up embedded hardware, debugging with oscilloscopes and analyzers, and iterating through revision cycles.
• Experience designing for harsh environments — thermal, mechanical, or corrosion constraints — with appropriate material and connector selection.
• Ability to think from first principles and make sound engineering tradeoffs under schedule pressure.
• High ownership mentality and comfort being the single-threaded owner of a critical embedded system.
• Strong cross-disciplinary communication skills and ability to collaborate with mechanical, power systems, subsea, and offshore operations teams.
• Entrepreneurial mindset and willingness to operate in ambiguity while building a new class of energy infrastructure

Responsibilities

• Architect and design low-voltage control and instrumentation systems from sensor interfaces through communication links and system supervisory logic.
• Select and implement microcontrollers and embedded Linux processors appropriate for subsea control applications.
• Design analog sensor front ends for pressure, temperature, flow, and shaft speed including signal conditioning, filtering, and ADC interfacing.
• Integrate battery management systems and design low-voltage power distribution for control electronics.
• Architect and implement communication systems including Ethernet, fiber optic, and serial protocols for subsea-to-surface data links.
• Produce electrical harness drawings and coordinate with manufacturing of cable assemblies, connectors, and harness fabrication.
• Define and implement fault-tolerant design strategies including redundancy, watchdog supervision, fault detection, and graceful degradation for non-retrievable deployments.
• Develop fault trees and failure containment strategies to prevent single-point failures from taking down critical monitoring or control functions.
• Lead board bring-up, lab validation, and system-level testing including sensor accuracy characterization, communication link validation, and fault injection.
• Drive root cause investigations for sensor dropouts, communication failures, firmware faults, connector failures, and field anomalies.
• Own the full system lifecycle including fabrication release, vendor and CM coordination, revision control, and production readiness.
• Integrate control hardware cleanly with power systems, firmware, mechanical enclosures, and offshore operations.
• Establish electrical design standards, documentation discipline, and reliability practices appropriate for subsea infrastructure

Skills

Embedded hardware design

Generalist hardware instincts

Complete embedded systems

Analog sensor front ends

Electrical harness design

Harsh-environment design

Debug/bring-up lab experience

Cross-disciplinary collaboration

Owner mindset

Job description

Endurance Energy is hiring a Senior/Principal Electrical Engineer in Seattle to architect, design, and validate low-voltage control and instrumentation for subsea energy generation. You will own the full hardware stack from schematics to field performance analysis, collaborating with mechanical, controls, and offshore teams.

Ideal candidates bring 6+ years of embedded hardware experience in harsh environments, hands-on bring-up, and a track record of delivering robust, production-ready systems