Nuclear Operations Engineer

At Valar Atomics, we're redefining what's possible in energy. Our mission is to make clean, high-temperature nuclear power scalable—unlocking abundant energy for industry, hydrogen, and next-generation manufacturing. We are a team of builders, engineers, and operators who believe nuclear energy should be fast to deploy, factory-made, and built for the real world. Our first pilot plant in Orangeville, Utah will demonstrate how advanced nuclear systems and fuel fabrication can power the future. Joining Valar Atomics means becoming part of a company where autonomy, ownership, and impact exist at every level.

As part of the Plant Operations organization, Utah Site Operations manages the day-to-day operation, maintenance, and readiness of Valar's Utah facilities. The team supports safe, reliable site operations while enabling successful project execution. 

As an Nuclear Operations Engineer, you will design and execute structured engineering test programs for reactor components, control systems, and integrated plant operations. You will develop test plans, determine experimental conditions, analyze complex data sets, and generate engineering-level conclusions that inform plant performance, safety margins, and design evolution. 

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  Design engineering test plans for first of a kind reactor systems, subsystems, and control algorithms 

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  Establish experimental conditions, analytical models, acceptance criteria, and evaluation methods 

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  Conduct highly instrumented reactor and component test campaigns in collaboration with operations teams 

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  Analyze complex thermal, structural, neutronic, and control data; interpret trends and anomalies 

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  Develop engineering reports, test summaries, and recommendations for engineering change proposals 

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  Serve as technical authority for experimental methods and test safety reviews 

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  Provide input into reactor system design, safety cases, and operating envelopes 

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  Evaluate fuel performance, system reliability, and stability margins during commissioning 

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  Collaborate cross-functionally with design engineering, safety analysis, operations, and materials science teams 

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  Author engineering procedures, test standards, and research documentation 

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  Present findings to technical leadership, independent reviewers, and regulatory interfaces

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  Support plant operations and maintenance as needed 

• Bachelor’s degree in Nuclear Engineering, Mechanical Engineering, Chemical Engineering, Electrical Engineering, Physics, or related field 

• Demonstrated experience in experimental test design, instrumentation, or complex system characterization 

• Strong analytical background in scientific or engineering methods 

• Ability to interpret test data and draw engineering-level conclusions 

• Experience developing technical reports, test plans, or engineering analyses 

• Willingness to relocate to Orangeville, UT.  

• Master’s degree or PhD in an engineering or physics discipline 

• Experience with nuclear systems, reactor physics, or high-temperature process systems 

• Experience in test reactor environments, DOE labs, or advanced R&D facilities 

• Familiarity with TRISO fuel behavior, thermal hydraulics, or control theory 

• Hands-on experience with high-complexity experiments or commissioning activities 

Valar Atomics is an equal opportunity employer. We consider all qualified applicants without regard to race, color, religion, sex, gender identity, sexual orientation, national origin, age, disability, veteran status, or any other protected status under applicable law.

We are committed to providing a workplace free of discrimination and harassment and will provide reasonable accommodation as required by law.

Applicants must be legally authorized to work in the United States as a U.S. citizen or lawful permanent resident (green card holder).