Nuclear Criticality Safety Engineer

AtkinsRéalis; Oak Ridge (TN); On-site; USD 57,000 - 96,000; Full time

Job summary

AtkinsRéalis in Oak Ridge, TN is seeking a Nuclear Criticality Safety Engineer to join our energy team. The role focuses on implementing the NCS program, performing criticality evaluations, and ensuring safety in fissile material operations. You will conduct audits, deliver NCS training, and contribute to emergency plans and safety basis documents, while aligning with DOE Orders and NCS standards.

U.S. citizenship is required for this position.

Qualifications

• Requires a Baccalaureate Degree in Engineering or related science.
• Minimum 2 years’ related experience; 1 year nuclear experience.
• Proficient in Microsoft Office and strong communication skills.
• Knowledge of DOE Orders and NCS standards.
• Ability to perform criticality calculations.

Responsibilities

• Support implementation of the Nuclear Criticality Safety (NCS) Program.
• Perform NCSE/A implementation walkdowns and input to emergency plans.
• Review and approve NCS-related documents and designs.
• Conduct audits, surveillances, and assessments of the NCS program.
• Provide NCS training delivery and evaluate its effectiveness.
• Identify NCS training needs for project activities.

Skills

Microsoft Office

Strong communication

DOE/NCS knowledge

Monte Carlo calculations

Criticality calculations

Education

Baccalaureate Degree in Engineering or Related Science

Tools

Monte Carlo neutron transport codes

Job description

Overview

We are seeking a Nuclear Criticality Safety Engineer Energy, to join our Team in our Oak Ridge, TN office.

Your role

• Stops work without fear of reprisal for unsafe conditions potentially affecting personnel safety or environmental risk.




• Supports implementation of the Nuclear Criticality Safety (NCS) Program.




• Supports facility activities to ensure criticality safety.




• Prepares and peer reviews NCS documents Fissile Material Operations (FMO) Screens, NCS Evaluations (NCSEs), NCS Approvals




• (NCSAs), NCS Clarifications, NCS Reports, and Criticality Accident Alarm System Needs Analyses.




• Performs NCSE/A implementation walkdowns and provides input to site emergency plans and pre-incident plans, as requested.




• Maintains awareness with assigned FMOs and NCS-related issues within Project.




• Participates in critiques/investigations involving NCS issues.




• Reviews Conditions Adverse to Quality (e.g., Non-Conformance Reports, Findings) for NCS impacts.




• Performs audits, surveillances, and assessments of the NCS Program and Project conformance to NCSA and NCS-related contract




• requirements.




• Reviews and approves work packages, procedures, administrative aids, and other Project documents to ensure compliance with NCS




• requirements.




• Reviews and approves designs and plans that potentially impact NCS.




• Reviews applicable facility Safety Basis documents for NCS integration.




• Participates in Hazard Evaluation Studies/Hazards Analysis in support of Project activities.




• Identifies the need for NCS training to support Project activities.




• Provides delivery of NCS training and the evaluation of its effectiveness.




• Maintains knowledge of NCS-related standards, guides, and codes.




• Supports the execution of Integrated Safety Management System guiding principles and core functions and the Isotek Safety Culture.




• Performs other duties as assigned.

About you

• Requires a Baccalaureate Degree in Engineering or Related Science.




• Minimum 2 years' related experience, 1-year nuclear experience.




• Applicants selected will be subject to a Federal background investigation and must meet eligibility requirements for access to classified information or matter.




• Proficient knowledge of Microsoft Office.




• Strong communication, verbal and written skills.




• Ability to describe the essential requirements, relationships and importance of applicable DOE Orders and Standards with respect to NCS.




• Ability to perform calculations with Monte Carlo neutron transport codes.




• Ability to perform hand calculations for criticality.




• Applicants must have Real ID compliant identification to access the work location.




• U.S. citizenship required for AtkinsRéalis/Isotek Systems Project positions.




• Must be a U.S. citizen in order to be considered.

Rewards & benefits

At AtkinsRéalis, our values—Safety, Integrity, Collaboration, Innovation, and Excellence—are more than just words. They are the foundation of who we are and how we work. These principles shape our culture, guide our decisions, and inspire us to create an environment where every team member feels empowered to grow, succeed, and make a meaningful impact.

Depending on your employment status, AtkinsRéalis benefits may include medical, dental, vision, company-paid life and short- and long-term disability benefits, employer-matched 401(k) with 100% vesting, employee stock purchase plan, Paid Time Off, leaves of absences options, flexible work options, recognition and employee satisfaction programs, employee assistance program, and voluntary benefits. You can review our comprehensive benefits page here.

About AtkinsRéalis

We're AtkinsRéalis, a world-class engineering services and nuclear organization. We connect people, data and technology to transform the world's'infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project managers, we can change the world. We're committed to leading our clients across our various end markets to engineer a better future for our planet and its people.

Find out more.

Additional information

Expected compensation range is between $57,000 - $96,000 annually depending on skills, experience, and geographical location.

AtkinsRéalis is an equal opportunity, Drug-Free employer EOE/Veteran/Disability

Please review AtkinsRéalis' Equal Opportunity Statement here.

AtkinsRéalis cares about your privacy and is committed to protecting your privacy. Please consult our Privacy Notice our Careers site to know more about how we collect, use and transfer your Personal Data. By submitting your personal information to AtkinsRéalis, you confirm that you have read and accept our Privacy Notice.