Amentum

Nuclear Criticality Safety Engineer

Amentum$90K *
Aerospace & Defense
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor’s degree in nuclear, engineering, math, or science (Nuclear Engineering preferred) with 1-2 years of NCS experience or 7 years of equivalent experience.
  • Experience with NCSP Hands-On Criticality Safety Course preferred.
  • DOE-specific experience is highly preferred.
  • Must be a US citizen.
  • Ability to obtain and maintain a DOE “Q” security clearance.,

Responsibilities

  • Provide technical guidance to operating organizations.
  • Collaborate with personnel as the lead NCS Analyst for evaluations.
  • Conduct independent reviews of NCS evaluations.
  • Lead response to programmatic issues and process deviations.
  • Participate in NCS emergency response preparation, including drills.
  • Prepare and present technical reports to the criticality safety community.
  • Conduct NCS training for employees involved in operations.

Benefits

  • Health, dental, and vision insurance
  • Paid time off and holidays
  • Retirement benefits with 401(k) matching
  • Educational reimbursement
  • Parental leave
  • Employee stock purchase plan
  • Tax-saving options
  • Disability and life insurance
  • Pet insurance
Full Job Description

Amentum is seeking a Nuclear Criticality Safety Engineer for the Pittsburgh, PA area.

Candidates will obtain site-specific Nuclear Criticality Safety (NCS) Analyst Qualification to support the implementation of a DOE-approved Nuclear Criticality Safety Program in an operating non-reactor nuclear facility.

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 participate 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 the 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.

Required Skills/Abilities

Bachelor’s degree in nuclear, engineering, math, or science with a 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

An alternate combination of education and experience will be considered.

       

Compensation Details:

90,000

       

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

 

Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

  • Health, dental, and vision insurance

  • Paid time off and holidays

  • Retirement benefits (including 401(k) matching)

  • Educational reimbursement

  • Parental leave

  • Employee stock purchase plan

  • Tax-saving options

  • Disability and life insurance

  • Pet insurance

 

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

       

Original Posting:

01/06/2026 - Until Filled

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

       

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed,  marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.

About Amentum

Amentum is a leading provider of engineering and technical services to the U.S. government and commercial customers worldwide. The company offers a wide range of services, including environmental remediation, facilities management, and logistics and supply chain management, among others. Amentum has a global presence, with operations in over 20 countries, and serves a diverse range of customers, including the Department of Defense, the Department of Energy, and the Department of State. The company is committed to providing high-quality services and has a strong reputation for technical expertise, innovation, and customer satisfaction.
Learn more about Amentum
Size
20,000 employees
Industry
Net Income
$200 million
Founded
2014
Revenue
$5 billion

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