Nuclear Criticality Engineer

Spectra Tech, Inc.; Oak Ridge (TN); On-site; USD 100,000 - 130,000; Full time

Job summary

International Executive Service Corps is looking for a Nuclear Criticality Engineer to support engineering efforts for the Uranium Processing Facility in Oak Ridge, TN. Key responsibilities include developing Criticality Safety Evaluations and resolving discrepancies in safety requirements.

The ideal candidate must have a Bachelor’s degree in Engineering, at least 15 years of relevant experience, and understanding of nuclear criticality safety procedures. This role emphasizes safety and compliance within a collaborative environment.

Qualifications

• 15+ years of relevant experience.
• United States (U.S.) Citizen.
• Must be able to be qualified to ANS-8.26.
• Experience with DOE and/or commercial nuclear projects.

Responsibilities

• Support nuclear engineering facets related to the Uranium Processing Facility.
• Develop and peer-review Criticality Safety Evaluations and Technical Deviations.
• Perform facility walkdowns and participate in Operational Safety Boards.
• Ensure critical design needs are met and maintain safety culture.
• Perform NCS evaluations and assess compliance.

Skills

Nuclear criticality safety procedures

Coordination skills

Communication skills

Technical documentation

Education

Bachelor’s Degree in Engineering

Job description

Spectra Tech has an immediate need for a Nuclear Criticality Engineer in Oak Ridge, TN.

Responsibilities / Overview:

• 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 a 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.