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How much do internship nuclear criticality safety engineer jobs pay per year?

As of Jul 26, 2026, the average yearly pay for internship nuclear criticality safety engineer in the United States is $154,474.00, according to ZipRecruiter salary data. Most workers in this role earn between $146,000.00 and $161,000.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as an Internship Nuclear Criticality Safety Engineer, and why are they important?

To thrive as an Internship Nuclear Criticality Safety Engineer, you generally need a solid background in nuclear engineering, physics, or a related field, supported by coursework in nuclear safety and criticality. Familiarity with nuclear simulation software (such as SCALE or MCNP), radiation detection instruments, and safety analysis tools is often expected. Strong analytical thinking, attention to detail, and effective communication skills help interns collaborate with multidisciplinary teams and convey complex safety information clearly. These skills and qualities are vital to ensure precise safety assessments and uphold regulatory compliance in nuclear environments.

What does an Internship Nuclear Criticality Safety Engineer do?

An Internship Nuclear Criticality Safety Engineer assists experienced engineers in analyzing and managing the safety risks associated with handling and storing nuclear materials. Their duties typically include performing calculations, reviewing safety procedures, helping to develop criticality safety evaluations, and supporting compliance with safety regulations. Interns may also participate in safety audits, learn about regulatory requirements, and collaborate with other departments to ensure the safe operation of nuclear facilities.

What types of projects and responsibilities can an intern expect as a Nuclear Criticality Safety Engineer?

As an intern in Nuclear Criticality Safety Engineering, you can expect to assist with risk assessments, perform calculations, and review safety procedures related to the handling and storage of nuclear materials. Interns often work under the supervision of experienced engineers, supporting compliance documentation, participating in safety audits, and collaborating with multidisciplinary teams such as reactor operators and health physicists. This role provides valuable hands-on experience in regulatory requirements and criticality safety analysis, laying a strong foundation for a career in nuclear engineering.
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Internship Nuclear Criticality Safety Engineer jobs near you
Infographic showing various Internship Nuclear Criticality Safety Engineer job openings in the United States as of July 2026, with employment types broken down into 6% As Needed, 90% Full Time, 1% Temporary, and 3% Contract. Highlights an 91% Physical, 5% Hybrid, and 4% Remote job distribution, with an average salary of $154,474 per year, or $74.3 per hour.
Nuclear Criticality Safety Engineer

Nuclear Criticality Safety Engineer

MS Technology, Inc.

Oak Ridge, TN • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 26 days ago

Job description

MS Technology, Inc. is seeking a Nuclear Criticality Safety Engineer to support our clients in Oak Ridge, TN.
The Nuclear Criticality Safety Engineer supports nuclear safety activities for the Uranium Processing Facility (UPF), including design, construction, and operational readiness. This role is responsible for developing, reviewing, and implementing criticality safety evaluations and technical basis documents, ensuring compliance with nuclear criticality safety (NCS) requirements. The position involves performing facility walkdowns, supporting safety reviews and boards, resolving safety discrepancies, and contributing to the overall NCS program. The engineer collaborates with multidisciplinary teams to support safe operations, maintain regulatory compliance, and uphold a strong safety culture within DOE and/or commercial nuclear environments.
Responsibilities
  • Support nuclear engineering facets related to the Uranium Processing Facility (UPF) design and construction of the facility.
  • Develop, revise, and peer-review Criticality Safety Evaluations (CSEs), Technical Deviations (TDs), and other NCS technical basis documents.
  • Perform facility walkdowns, review implementing documents, and participate in Operational Safety Boards.
  • Resolve non-compliance or discrepancies in safety requirements.
  • Develop calculations related to nuclear facilities.
  • Ensure critical design needs are met.
  • Develop, review, and implement Nuclear Criticality Safety Evaluations (NCSEs) and Determinations (NCSDs).
  • Assist in implementing and maintaining the NCS program, including operability evaluations and problem report dispositions.
  • Maintain a strong safety culture, implement zero-accident philosophies, and ensure safe work practices in operational areas.
  • Review operational areas to assess NCS compliance.
  • Perform NCS evaluations.

Requirements
  • Bachelor’s Degree in Engineering; may look at other candidates with technical degree and additional relevant experience
  • 15+ years of relevant experience
  • United States (U.S.) Citizen
  • Must understand nuclear criticality safety procedures
  • Must be able to be qualified to ANS-8.26
  • Must have excellent coordination and communication skills to work with various teams and stakeholders
  • Must have experience with DOE and/or commercial nuclear projects

 

Benefits:

All eligible employees enjoy an excellent benefits package, including medical/dental/vision insurance, short/long-term disability, life insurance, 401(k), paid time off including holidays, and tuition reimbursement.

EEO Statement:

MSTI is an equal-opportunity employer. All qualified candidates, including individuals with disabilities and protected veterans, are encouraged to apply. MSTI is an E-Verify employer. If you have difficulty using the online application system or need an accommodation to apply due to a disability, please email: HR@mstechnology.com.

EEO Employer/Vet/Disabled

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