Senior EV Harness Technician - Prototype Lab

Humble Robotics; San Francisco (CA); On-site; USD 80,000 - 120,000; Full time

Job summary

Humble Robotics in San Francisco develops autonomous electric haulers for logistics. The Senior Technician will build electrical harnesses, rework PCBs, and run the lab and wire-harness bench, shaping parts used on prototype vehicles.

You’ll collaborate with engineers, follow HV safety practices, and ensure detailed build records while enabling rapid iteration for next-generation trucks.

Qualifications

• 3+ years hands-on experience in automotive, robotics, or aerospace lab environments or prototype shops (or equivalent practical experience).
• Strong harnessing skills: crimping, pin extraction, splicing, shielding/grounding, strain relief, and proper automotive routing practices.
• Experience with common connector families (Deutsch, TE, Amphenol, Molex) and backshells/boots.
• Solid soldering and rework fundamentals: through-hole, connector, and cable repair with ESD-safe handling.
• Comfortable reading schematics, board docs, and using a DMM/scope for basic checks.
• Able to wire safe power distribution (fusing, relays/contactors) with tidy, repeatable setups.
• High attention to detail, labeling, documentation, and workmanship standards.
• Eligible to work in the United States.

Responsibilities

• Fabricate, modify, and repair vehicle wiring harnesses — high-voltage EV cabling, low-voltage power/signal, and high-speed data with proper shielding and routing practices.
• Perform PCB rework and prototype support: fine-pitch SMD and through-hole soldering, hot air rework, component replacement, and connector rework with ESD-safe handling.
• Support basic board debug: continuity checks, power rail validation, and bring-up measurements.
• Build and maintain lab and vehicle test benches — harnessed rigs for sensors/compute/power, relay/fuse boxes, interconnect panels, and instrumentation setups.
• Route and dress cables in vehicles and benches: loom/overbraid, heat shrink, labeling, and connector serviceability for rapid iteration.
• Troubleshoot electrical integration issues in vehicles and benches; propose fixes and improvements.
• Maintain build records (as-built notes) and organize parts/tools.
• Fabricate simple brackets, enclosures, and mechanical fixtures as needed.

Skills

Harnessing

Soldering & rework

Reading schematics

PCB rework

Power distribution wiring

ESD & safety practices

HV/lab incrementality

Connector knowledge

Tools

DMM

Oscilloscope

Job description

Humble Robotics in San Francisco develops autonomous electric haulers for logistics. The Senior Technician will build electrical harnesses, rework PCBs, and run the lab and wire-harness bench, shaping parts used on prototype vehicles.

You’ll collaborate with engineers, follow HV safety practices, and ensure detailed build records while enabling rapid iteration for next-generation trucks.