Test Engineer (Mechanical)

General Matter
Los Angeles, CA

About the Company

At General Matter, we’re strengthening America’s capacity in nuclear energy to create a new set of possibilities for our shared future, from generating clean energy at scale to forging energy security, both for today and for the century ahead.

Progress is an engine. We make its fuel. With nuclear energy powering the next wave of American progress, we’re ensuring our country has the resources and technology it needs, no matter what’s happening around the world.

We’re backed by top tier firms/angels. Our small, focused team of engineers and operators is applying a first-principles approach to solving an urgent and impactful problem. We are a mission-driven company with a culture of urgency, accountability and honesty.

About This Role

As a General Matter Test Engineer, you will own test infrastructure and support test design, setup, and operation for our enrichment technology. You will work closely with cross-functional teams, including electrical engineers, software engineers, manufacturing engineers, and nuclear engineers. If you seek high-impact and are excited by fast-paced, intense, Skunkworks-style projects, we encourage you to reach out to join our team.

Responsibilities


  • Function as a member of an interdisciplinary team capable of executing static, dynamic, fatigue, thermal and vibration testing.

  • Architect and own test infrastructure.

  • Test items ranging from small integrated electronics systems to fluid systems.

  • Operate data acquisition systems, thermal chambers, vibration tables, and structural testing equipment.

  • Lead design reviews, run data analysis, visit vendors, define and execute hardware test plans.

  • Build test equipment, implement test automation, analyze failures and execute qualification campaigns.

Basic Qualifications


  • Evidence of exceptional ability (prior projects, portfolio of work, completed products, etc).

  • Bachelor’s degree in Mechanical Engineering or a related field.

  • 1+ years of test engineering experience via project team, research, internship, and/or professional experience.

  • CAD skills (any platform) and ability to make high quality engineering drawings that meet common industry standards.

  • Experience in hardware automation and software-hardware communication/integration.

Preferred Skills and Experience


  • Experience performing finite element analysis (FEA)

  • Hands-on design and fabrication experience

  • Demonstrated ability to drive projects to completion

  • Experience with test equipment (data acquisition, instrumentation, pumps, valves, and automation).

  • Experience with the building and testing of fluid and/or electrical systems.

  • Experience with writing test plans and test procedures.

Additional Requirements


  • Ability to work extended hours and weekends as necessary.

Compensation and Benefits

Your actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience.

Base salary is just one part of your total rewards package at General Matter. You may also be eligible for long-term incentives, in the form of company stock options. You will also receive access to comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, HSA/FSA/Commuter benefits, and various other benefits. General Matter also offers all employees an 'Unlimited Time Off' policy.

Posted 2025-11-19

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