We are seeking a Sr. Nuclear Criticality Safety Engineer to join our team supporting the Oak Ridge National Laboratory! This position is full-time and will be based out of Oak Ridge, Tennessee.

Responsibilities

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 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 (CAAS) 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 (NCSRs).

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 (ISMS) guiding principles and core functions and the Safety Culture.

Requirements

Education & Years of Experience - Bachelor's Degree in Engineering and 10+ years of relevant experience.

Citizenship - To be considered, you MUST be a United States (U.S.) citizen due to the federal nature of the work.

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

Experience performing Criticality Accident Alarm System (CAAS) assessments.

Experience performing audits, surveillances, and assessments of the NCS Program.

Ability to perform calculations with Monte Carlo neutron transport codes.

Ability to perform hand calculations for criticality.

Proficient knowledge of Microsoft Office.

Strong communication, verbal and written skills.

Broad experience in the development and implementation of NCS Programs.