Marine Electrical Systems Tech for USVs — On Water

Fathom Robotics; Oxnard (CA); On-site; USD 95,000 - 135,000; Full time

Benefits offered by this job

Health reimbursement (ICHRA)

401(k) plan

Job summary

Fathom Robotics in California seeks a Marine Electrical Systems Technician to own the electrical reliability of the uncrewed surface vessels (USVs) we operate and maintain. You will diagnose and fix power distribution, charging, and battery problems, ensuring payloads get clean, dependable power on every underway.

You will set electrical standards for payload connections, work with the vessel manufacturer and government customers on configuration changes, and be on the water when it counts.

Qualifications

• High school diploma or equivalent; technical or trade school training preferred.
• 3+ years of hands‑on marine or electrical experience on AC and DC systems.
• ABYC certification or willingness to obtain within six months of hire; knowledge of ABYC E-11.
• Experience with lithium battery systems, battery management systems, and alternator charging.
• Ability to read and draw electrical schematics, calculate loads, and size conductors and breakers.

Responsibilities

• Troubleshoot and repair AC and DC power systems on USVs, including shore power, inverters, alternators, house and engine start batteries, battery switches, breakers, and GFCI protection.
• Hardwire payload power to the AC distribution panel on dedicated, correctly sized circuits and breakers.
• Build a power budget for each hull and payload configuration, covering average load, peak load, and startup (inrush) current.
• Verify charging and load performance from onboard data and sea trial logs, and write short findings reports after trials and events.
• Set electrical installation standards and payload power requirements so payload teams build to a known specification.
• Coordinate with the vessel manufacturer and government customers on any change to vessel electrical configuration, and document every modification as installed.
• Run pre‑underway electrical checks and respond to power faults during test events.

Skills

Schematic reading

Load calculations

Electrical troubleshooting

On-water field operations

Education

High school diploma or equivalent

ABYC marine electrical certification

ABYC E-11 knowledge

ABYC E-13 knowledge

Tools

Multimeter

Clamp meter

Data logger

CAN/NMEA 2000 software

Job description

Fathom Robotics in California seeks a Marine Electrical Systems Technician to own the electrical reliability of the uncrewed surface vessels (USVs) we operate and maintain. You will diagnose and fix power distribution, charging, and battery problems, ensuring payloads get clean, dependable power on every underway.

You will set electrical standards for payload connections, work with the vessel manufacturer and government customers on configuration changes, and be on the water when it counts.