R&D Technician

San Francisco, CA
Full-time
Visa Sponsorship

About the role

We’re looking for an R&D Technician who loves building real hardware, getting their hands dirty, and making experiments actually work. If your happy place is a lab or shop, turning wrenches, wiring up sensors, fixing that one flaky connector, and helping bring bleeding-edge hardware to life; you’ll fit right in.

What You’ll Be Doing

  • Building and assembling hardware and test setups: assembling magnet test stands, power racks, cryogenic plumbing, vacuum systems, and custom fixtures using mechanical drawings and wiring diagrams.
  • Hands-on wiring, soldering, and instrumentation: terminating cables and connectors, building harnesses, routing and labeling wiring, soldering boards and connectors, and installing sensors (voltage taps, thermocouples, strain gauges, Hall probes, etc.).
  • Running experiments and collecting data: setting up and operating DAQs, power supplies, oscilloscopes, DMMs, and other lab gear; executing test procedures; logging results; and flagging anomalies for the engineering team.
  • Supporting cryogenic and vacuum operations: helping assemble and maintain cryostats, handling LN₂, operating vacuum pumps and gauges, leak-checking systems, and keeping an eye on “is everything actually sealed and cold?”
  • Standing up and organizing the R&D lab: helping bring the lab online: setting up benches, mounting equipment, organizing tools and parts, labeling everything, and keeping the lab safe, tidy, and functional.
  • Debugging hardware on the bench: tracking down loose connections, miswired harnesses, flaky sensors, and mechanical fit-up issues; working side-by-side with engineers to get systems from “it kinda works” to “it works every time.”
  • Doing whatever it takes in an early-stage startup: from uncrating equipment and assembling racks/furniture to runs to the hardware store; you will be a core part of making the lab and company actually function.

What You Bring

  • Hands-on build and test experience: 2+ years as a technician, mechanic, lab tech, or similar role in hardware R&D, manufacturing, automotive/EV, aerospace, electronics, or a related field. (Exceptional hobbyist/maker experience also counts.)
  • Comfort with tools and instrumentation: confident using hand tools, basic machine/shop tools, soldering irons, crimpers, multimeters, power supplies, oscilloscopes, and basic DAQ software.
  • Ability to read and follow technical documentation: comfortable working from mechanical drawings, simple CAD prints, wiring diagrams, and written procedures, and giving feedback when something does not match reality.
  • High ownership and reliability: you take pride in clean builds, good cable management, accurate measurements, and leaving the lab better than you found it.

Bonus points for any of the following

  • Experience with vacuum systems, cryogenics, or high-current / high-voltage equipment
  • Experience with REBCO/HTS, magnets, or power electronics
  • Basic familiarity with Python, LabVIEW, PLCs, or test automation
  • Machine shop experience (CNC, manual mill/lathe, drill press, basic fabrication)
  • Startup-ready mindset: willingness to get the often overlooked but critical work: assembling office furniture, unpacking crates, organizing inventory, and helping build a world-class lab from the ground up.

About Maritime Fusion

Fusion reactors for ships

Other roles at Maritime Fusion

Interested?

Let me introduce you to the founders.

Skip the process

Job details

Salary

$100,000 - $160,000

Equity

0.1% - 0.25%

Location

San Francisco, CA

Experience

0+ years

Company

NameMaritime Fusion
IndustryEnergy
Team Size6

Funding

Total raised

$4.5M

Last stage

Seed

Investors

Trucks VC
Y Combinator
AAera VC
Alumni Ventures
PPaul Graham

Founders

Jason Kaufmann

Jason Kaufmann

Co-Founder

LinkedIn
Justin Cohen

Justin Cohen

Co-Founder & CEO

LinkedIn

What happens next.

No applications, no recruiter spam. Just the intro.

01

Confirm the fit

A few questions to make sure this role is the right shape for you. Two minutes.

02

I pitch you to the company

I write the intro, send it to the founder, and handle the back-and-forth.

03

A meeting lands on your calendar

If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.