Backed by Founders Fund.
About the role
As Lead Nuclear Criticality Safety Engineer at General Matter, you'll build and lead the criticality safety program for a Part 70 fuel cycle facility from the ground up. Your criticality safety evaluations (CSEs) are a foundational input into our Integrated Safety Analysis (ISA), meaning the double-contingency approach, methodology, and technical judgment you establish now will shape how this facility operates for decades.
What they're looking for
- Evidence of exceptional ability (prior projects, portfolio of work, completed products, etc.)
- 8+ years of nuclear criticality safety experience, including direct authorship of criticality safety evaluations at a DOE or NRC-licensed facility
- Bachelor's degree in Nuclear Engineering, Physics, or a related field
- Strong knowledge of criticality safety regulations, standards, and methodologies (e.g., 10 CFR Part 70, ANSI/ANS-8 series), and the ability to bridge DOE and NRC frameworks where they differ
- Proficiency in computational tools such as SCALE, MCNP, or similar software
- Ability to perform trade studies and make clear recommendations using first principles and engineering fundamentals, even with partial information
More about this role
General Matter is enriching uranium in America.
Our goal is to design, build, and operate the world’s lowest-cost enrichment services in the United States.
Our mission is to restore America’s ability to produce nuclear fuel—fuel that will power AI, advanced manufacturing, critical industries, and the next generation of nuclear reactors.
Ultimately, our work will help power national ambitions and enable a high-energy society.
We were incubated by Founders Fund, like Anduril and Palantir before us, and are backed by top-tier investors. Our lean, world-class team of engineers and operators is applying a first-principles approach to solving the problem of nuclear fuel production.
We are a mission-driven company with a culture of urgency, accountability, and transparency.
Help us build a high-energy society by making the cleanest, safest form of baseload energy the most affordable.
As Lead Nuclear Criticality Safety Engineer at General Matter, you'll build and lead the criticality safety program for a Part 70 fuel cycle facility from the ground up. Your criticality safety evaluations (CSEs) are a foundational input into our Integrated Safety Analysis (ISA), meaning the...
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