Endurance Energy
Senior Electrical Engineer
Seattle, WA · Senior
Sponsorship not specified$185k-$250kDetected 36 days ago
LinuxEmbedded SystemsPower ElectronicsCommunicationFiber Optics
About the role
- Backed by Founders Fund, Felicis, First Round Capital, and Point72 Ventures, our founding team includes veterans from SpaceX, Helion, and Robinhood.
- We have completed multiple deep-ocean deployments and are launching a long-term demonstration project this fall.
- You understand the difference between a board that passes validation and a system running unattended in a harsh subsea environment.
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
- 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
Requirements
- 6+ years of experience designing and shipping embedded or mixed-signal hardware in demanding or high-reliability environments
- 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
- Ability to think from first principles and make sound engineering tradeoffs under schedule pressure
- 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
- 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
- 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
Nice to have
- Prior subsea, marine, or offshore hardware experience
Compensation
- Comprehensive salary (185K-250K) and equity packages
Benefits
- Vision, Dental, Health insurance coverage
- Competitive Compensation: Comprehensive salary (185K-250K) and equity packages
Company info
- Company-sponsored recreational dive certification
- We are looking for someone who has personally selected components, designed analog front ends, brought up embedded boards in the lab, debugged intermittent failures, and driven designs through revision cycles into production.
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