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Mainspring Energy

Onsite linear generators for scalable power

Senior/Staff Materials Process Engineer

Process EngineeringConfirmed live in the last 24 hours
Full-timeMenlo Park, CA, USA$126k - $178k /yr

About the Job

Requirements

  • A Bachelor of Science degree in Materials Science/Engineering or Mechanical Engineering is required.
  • An MS degree and 5 years of industry experience, or a PhD and 3 years of industry experience, is required.
  • Fundamental understanding of engineering-material properties and performance, including basic knowledge of structure-property relationships.
  • Working knowledge and experience with Failure Mode and Effects Analysis (FMEA).
  • Demonstrated experience with statistical data analysis and reporting using tools such as MATLAB or Python, Google Sheets or Excel, or Weibull++.
  • Excellent communication skills, adaptability, self-direction, and enjoyment of collaboration in a fast-paced environment.

Responsibilities

  • Lead independent process development and material validation of cast metal components and other mechanical systems in the Linear Generator.
  • Collaborate with Materials and Engineering team members to characterize material properties, identify failure modes, and execute validation tests to meet reliability requirements.
  • Create, develop, and optimize material and process specifications related to castings and other mechanical components.
  • Write specifications, process-control plans, and quality-control plans for cast and other mechanical components.
  • Collaborate with mechanical design, supply chain, and quality teams to qualify processes and establish key process controls at manufacturing locations, including casting suppliers.
  • Participate in FMEA for design, process, and maintenance.
  • Support the Materials and Process team with failure analysis and process development projects across materials and process areas, including coatings, polymers, graphite, and joining/welding.

Desired Qualifications

  • Prior experience with metal casting processes, such as die casting, investment casting, and sand casting, and their impact on part properties and performance is strongly preferred.
  • Broader exposure to other materials and process areas, such as coatings, polymers, graphite, forging, or joining/welding, is a plus.
  • Experience with volume production of metal or cast components is highly preferred.

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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