Demo

Nuclear Criticality Safety Engineer

pae
Philadelphia, PA Full Time
POSTED ON 1/7/2026
AVAILABLE BEFORE 3/7/2026
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. Welcome back! We encourage you to check on the status of your current job applications with us. You can also search for a list of our current job openings and see if there are any new positions that might be a good fit for you. Thank you for continued interest in employment with Amentum. For more than 100 years, Amentum has tackled the world’s toughest challenges to deliver agile and steadfast solutions to the U.S. government and its allies. With more than 50,000 employees on all seven continents and in more than 60 countries, Amentum delivers a broad range of operational support services to meet the critical needs of our clients. Our headquarters are in Chantilly, VA. Find us online at https://www.amentum.com/ If you need a reasonable accommodation for any part of the employment process, please contact us by email at TAOps@amentum.com and let us know the nature of your request and your contact information. Requests for accommodation will be considered on a case-by-case basis. EEO including Disability/Protected Veterans Labor Laws Posters Amentum has become aware of unauthorized individuals who are falsely using the Amentum name and /or logo in an attempt to solicit fees from potential job seekers. These deceptive and unauthorized individuals are soliciting money, promising placement in a position with Amentum. Please note any communication requesting any amount of money in exchange for employment with Amentum is fraudulent. These communications do not originate from Amentum and are not associated with the recruitment process. Amentum and its affiliates never charge candidates fees or payments of any kind in order to secure employment. As a precaution, we recommend you do not disclose personal or financial details to anyone as a response to an unsolicited email, social media, or dating website request. Amentum will never as ask for a placement fee or any other fee to expedite the hiring process. If you are contacted by anyone offering employment with Amentum, you should never be asked to pay a fee for recruiting. Amentum personnel will always send email from an identifiable corporate account (ending in @amentum.com) and never from a public email account like Yahoo!, Google, Gmail, or Hotmail. If you are contacted regarding a fraudulent employment proposal, we encourage you to alert your local law enforcement agency/police authority. To read more about Amentum’s commitment to ethics, please click here.

Salary.com Estimation for Nuclear Criticality Safety Engineer in Philadelphia, PA
$143,921 to $174,147
If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Nuclear Criticality Safety Engineer?

Sign up to receive alerts about other jobs on the Nuclear Criticality Safety Engineer career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$80,339 - $93,084
Income Estimation: 
$96,037 - $114,374
Income Estimation: 
$102,054 - $131,688
Income Estimation: 
$140,878 - $174,053
Income Estimation: 
$169,825 - $204,021
Income Estimation: 
$166,631 - $195,636
Income Estimation: 
$162,237 - $199,353
Income Estimation: 
$181,083 - $218,117
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at pae

  • pae Washington, DC
  • Works under the direction of a Supervisory Paralegal or Project Manager performing moderately complex legal research; preparing draft legal documents, such... more
  • 13 Days Ago

  • pae Honolulu, HI
  • Amentum is seeking a dynamic Exercise Planner in support of U.S. Indo-Pacific Command (USINDOPACOM) Training and Exercises Directorate (J7) at Ford Island,... more
  • 13 Days Ago

  • pae Portland, OR
  • Who We Are PAE is an engineering and design firm that turns complex challenges into reality. By leveraging the latest technologies, we solve problems in un... more
  • 13 Days Ago

  • pae Lexington, MD
  • Job Description SYSTEMS ANALYST, JOURNEYMAN Analyzes contract requirements to develop solutions using various sensors and Navy owned sensor system software... more
  • 13 Days Ago


Not the job you're looking for? Here are some other Nuclear Criticality Safety Engineer jobs in the Philadelphia, PA area that may be a better fit.

  • U.S. Navy Norwood, PA
  • Nuclear Operations As an Enlisted Sailor working in nuclear operations, you'll have the opportunity to work at sea or ashore. In Machinist's Mate Nuclear (... more
  • 9 Days Ago

  • HOLTEC INTERNATIONAL Camden, NJ
  • Holtec International and its subsidiary companies are designing an unconditionally safe and secure source of clean energy, the SMR-160 small modular reacto... more
  • 25 Days Ago

AI Assistant is available now!

Feel free to start your new journey!