Senior Nuclear Criticality Safety Engineer

Job Description Overview

We are seeking a Senior Nuclear Criticality Safety Engineer, to join our team in Oak Ridge, TN.

• Stops work without fear of reprisal for unsafe conditions potentially affecting personnel safety or environmental risk.
• Assists in identification of the need for and/or development of Nuclear Criticality Safety (NCS) compliance training to support Isotek activities.
• Maintains awareness of NCS-related operations within Project.
• Participates in critiques/investigations involving NCS issues, as requested.
• Provides field support of operations in the area of nuclear criticality safety, including periodic surveillance and assessment of conformance to Nuclear Criticality Safety Approval (NCSA) requirements.
• Supports building activities, such as construction and maintenance, to ensure criticality safety.
• Reviews Work Packages, procedures, and other Project documents to ensure compliance with NCS requirements.
• Performs Criticality Accident Alarm System assessments.
• Performs audits, surveillances, and assessments of the NCS Program.
• Functions as primary interpretative authority on matters related to NCS Program.
• Maintains knowledge of NCS-related standards, guides, and codes.
• Prepares and peer reviews NCS documents such as:
  Fissile Material Operations (FMO) Screens, Nuclear Criticality Safety Evaluations (NCSEs), NCSAs, and NCS Reports.
• Maintains familiarity with assigned FMOs.
• Reviews and approves designs, plans, procedures, instructions and administrative aids that implement NCS requirements or potentially impact NCS.
• Performs NCSE/A implementation walk downs and provides input to site emergency plans as requested.
• Delivers NCS training and evaluates its effectiveness.
• Reviews applicable facility Safety Basis documents for NCS issues.
• Supports the execution of Integrated Safety Management System guiding principles and core functions and the Isotek Safety Culture.
• Performs other duties as assigned.

• Baccalaureate in engineering or related science.
• Minimum 10 years’ nuclear experience.
• Proficient knowledge of Microsoft Office.
• Strong communication, verbal and written skills.
• Broad experience in the development and implementation of NCS Programs.
• Ability to perform calculations with Monte Carlo neutron transport codes.
• Ability to perform hand calculations for criticality.
• Applicants selected will be subject to a Federal background investigation and must meet eligibility requirements for access to classified information or matter.
• Must have Real  identification to access the work location.
• U.S. citizenship required for Atkins Global Isotek Systems project positions.
• Must be a U.S. citizen in order to be considered.

At Atkins

Réalis, 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, Atkins

Réalis 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.

We’re Atkins

Réalis, 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.

Expected compensation range is between $90,000 - $150,000 annually depending on skills, experience, and geographical location.

Are you ready to expand your career with us?…