Amentum

Criticality Safety Engineer

Job Description

Posted on: 
July 30, 2025

Aiken, South Carolina, United States

Amentum is seeking a Nuclear Criticality Safety Engineer based out of our Aiken, SC office.  Candidates will obtain site specific Nuclear Criticality Safety (NCS) Analyst Qualification to support implementation of a DOE Approved Nuclear Criticality Safety Program in an operating non-reactor nuclear facility.

Responsibilities

Job Responsibilities

Provide technical guidance to operating organizations.

Collaborate with operating organization personnel on NCS evaluations as the lead NCS Analyst.

Perform independent reviews of NCS evaluations.

Conduct periodic reviews of fissionable material operations.

Lead and/or participating in NCS response to programmatic issues and criticality process deviations/infractions.

Participate in NCS emergency response preparation (emergency procedures, plans, exercises, and drills).

Independently prepare, review, and/or present technical reports to the criticality safety community (e.g. American Nuclear Society, etc.).

Conduct NCS training for all levels of employees involved in fissionable material operations.

Assist in the development and/or review of new or proposed changes to existing NCS programmatic policy and implementing documents.

Lead and/or participate in assessments and audits of the NCS Program.

Mentor of less experienced Nuclear Criticality Safety (NCS) Analysts and Analysts In-Training on all aspects of criticality safety.

Development, revision, and review of Nuclear Criticality Safety (NCS) documentation such as Criticality Safety Evaluations (CSEs), Nuclear Criticality Safety Design Analysis, and Calculations (DACs) and various other NCS technical basis documentation.

Complete required NCS annual Operational Reviews.

Daily nuclear facility support; consisting of facility walkdowns, review of NCS requirements, implementing documents, participation at facility Operational Safety Boards, etc.

Job Requirements

Required Skills/Abilities

Bachelor’s degree in nuclear, engineering, math, or science with minimum of 1-2 years of Nuclear Criticality Safety (NCS) experience is required (Nuclear Engineering degree preferred) or 7 years of equivalent technical experience in place of a B.S.

Experience in Approach to Critical (e.g., NCSP Hands-On Criticality Safety Course) preferred.

DOE-specific experience is highly preferred.

Candidate must be a US citizen.

Candidate must have the ability to obtain and maintain a DOE “Q” security clearance.

Demonstrated keen attention to detail.

Educational Requirements

Alternate combination of education and experience will be considered.

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