Prototype Wire Harness Technician

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

About Humble Robotics

Working at Humble Robotics means taking on the biggest change in ground transportation in decades. We’re building an autonomous, zero-emissions hauler that dramatically lowers the cost of freight with groundbreaking vision-based AI, designed for today’s global logistics network.

We’re a fast-moving, close-knit team of AV industry veterans and innovative thinkers. We don’t believe culture can be engineered – but when it falls into place, it’s a once-in-a-lifetime adventure.

Progress has never felt so present.

Position Overview

You’ll build the electrical nervous system of our autonomous trucks — and own the lab it comes out of. As our senior technician, you’ll fabricate high-voltage EV cables, build low-voltage and data harnesses (CAN, automotive Ethernet, coax/FAKRA), rework PCBs alongside the engineers who designed them, and run the electrical lab and wire-harness bench as your own domain — layout, tooling, stock, and standards. Your workmanship goes straight onto prototype vehicles, and your fingerprints will be on every truck we ship.

Responsibilities

• Fabricate, modify, and repair vehicle wiring harnesses — high-voltage EV cabling (shielded HV cable, HV connectors, HVIL), low-voltage power/signal (12/24/48V), and high-speed data (CAN/CAN-FD, LIN, automotive Ethernet, coax/FAKRA, GMSL) with proper shielding, impedance, 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 (power supplies, loads, scopes, DMMs)
• 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

Minimum 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

Preferred Qualifications

• High-voltage vehicle or EV experience (contactors, precharge, HVIL concepts, HV connectors, safe routing practices)
• Experience with automotive networks (CAN/LIN, automotive Ethernet) and coax-based sensor wiring
• Familiarity with harness documentation tools (basic CAD, wiring diagrams, pinout tables) and maintaining ECO‑style updates
• Light fabrication skills (drill press, 3D printing, simple sheet metal) for fixtures and enclosures
• Fine-pitch SMD and hot‑air rework on dense boards
• IPC‑A‑610 / IPC/WHMA-A‑620 or HV safety certification (or the experience to earn one quickly)
• Experience supporting rapid prototype vehicles and field deployments
• Comfortable working around vehicles, lifting typical lab equipment, and following ESD and electrical safety procedures including HV safety practices

Compensation

Salary ranges are determined by role, level, and location. Within the range, individual pay is determined by additional factors, including qualifications, skills, experience, and location. We also offer competitive equity compensation and benefits.

As part of the interview process, we may use Artificial Intelligence (AI) tools to compare your qualifications and experience to the job description. A human reviews all AI output and makes a final hiring decision. Humble Robotics does not rely on the output to make any employment decisions. Some applicants may have a legal right to opt‑out of the use of AI as part of our interview process. Contact [e-mail] to exercise this right or if you have further questions on the use of AI tools in our hiring process.

Humble Robotics is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, national origin, gender, age, religion, disability, sexual orientation, veteran status, marital status or any other characteristics protected by law. Humble Robotics will consider qualified applicants with arrest and conviction records in a manner consistent with local ordinances.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.