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Mainspring Energy

Onsite linear generators for scalable power

Mechanical R&D Technician

Product AssemblyPosted on Nov 13
Full-timeMenlo Park, CA, USA$30 - $38 /hrIn-person

About the Job

Requirements

  • A minimum of 3 years of hands-on experience with mechanical assembly and/or repair is required.
  • Experience with precision measuring instruments is required, including the ability to measure to .001 inches using tools such as micrometers, bore gauges, and gauge blocks.
  • A valid California driver's license is required.
  • A demonstrated commitment to safety is required.

Responsibilities

  • Collaborate with the build and test team on high-efficiency generator development.
  • Construct generator components and assemblies, following procedures and identifying opportunities for innovation.
  • Troubleshoot, repair, and reimagine components and assemblies in collaboration with engineers, influencing design development.
  • Inspect test units and document findings for the engineering team.
  • Identify and implement improvements to enhance workplace safety and efficiency.

Desired Qualifications

  • Experience with automotive or heavy equipment assembly is a plus.
  • Metal fabrication skills are a plus.
  • A Commercial Driver's License (Class A CDL) is a plus.

About the Company

Mainspring Energy

Onsite linear generators for scalable power

Mainspring Energy designs and ships onsite linear generators that produce electricity for commercial and industrial customers, data centers, utilities, and microgrids. The kit uses a straight-line motion that is converted into electric current by magnets moving through copper coils, driven by a flameless, low-temperature air-and-fuel reaction with only two moving parts and an oil-free air-bearing. The system is fuel-flexible, handling natural gas, biogas, hydrogen, ammonia, and propane, and it scales from about 250 kW to more than 100 MW, with near-zero NOx and no after-treatment required. The company sells power as a service, enabling installations with no upfront cost and ongoing payments based on energy use, aiming to lower operating costs and increase energy resilience for its customers.

Company size
501-1,000
Company stage
Series F
Total funding
$813M
Headquarters
Menlo Park, CA
Founded
2010

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