Senior R&D Technician Hardware Team San Francisco San Francisco Full-time 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 In this role, you’ll build and rework vehicle harnesses (LV/HV and data), perform PCB rework and board bring-up support, and assemble/maintain test benches for sensors, compute, power, and vehicle interfaces. 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 In this role, you’ll build and rework vehicle harnesses (LV/HV and data), perform PCB rework and board bring-up support, and assemble/maintain test benches for sensors, compute, power, and vehicle interfaces. 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 legal@humblerobotics.ai 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. Responsibilities

Build, modify, and repair vehicle wiring harnesses — low-voltage power/signal (12/24/48V), high-voltage cabling, and high-speed data (automotive Ethernet, coax, CAN) 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

PCB rework competence: confident with fine-pitch soldering and hot-air rework on dense boards

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

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.

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