Criticality Safety Analyst
Listed on 2026-01-23
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Engineering
Research Scientist, Environmental Engineer
Criticality Safety Analyst 1/2 – Los Alamos National Laboratory
What You Will DoWorking as a Nuclear Criticality Safety (NCS) Analyst under the LANL NCS Program you will provide technical guidance to determine that fissionable material operations remain subcritical under normal and credible abnormal conditions. This is the job for you if you are interested in supporting a key national security mission by interfacing with customers in nuclear facilities, performing technical analyses, proposing logical arguments, and recommending NCS controls.
Levels& Compensation Criticality Safety Analyst 1
Salary range: $94,500 - $154,600. Responsibilities include assisting in preparing and presenting NCS technical reports both internal to LANL and external to the criticality safety community (e.g., American Nuclear Society).
Criticality Safety Analyst 2Salary range: $104,100 - $172,200. Added responsibilities: implementation guidance, collaboration on documentation, periodic reviews, leading or participating in NCS responses, emergency response, independent preparation and presentation of NCS technical reports, and NCS training.
What You Need MinimumJob Requirements
- Basic knowledge of and experience with nuclear physics
- Basic knowledge of and experience with criticality safety analysis tools such as SCALE/MCNP
- Demonstrated technical writing and oral communication skills
Job Requirements for Criticality Safety Analyst 2
- Prior criticality safety or related experience
- Knowledge in the discipline of NCS, including evaluations, program implementation, computation tools, standards, and regulatory guidelines
- Knowledge of ANSI/ANS 8 Series National Standards and applicable DOE Orders, Standards, and Guides
- Knowledge of computer codes and nuclear data used for modeling and NCS analysis
- Ability to conduct NCS evaluations on various fissile/fissionable material forms
- Experience conducting research, investigating alternative solutions, and recommending solutions on NCS problems
- Ability to conceptualize and communicate major elements of NCS to both technical and non-technical personnel
Equal to Analyst 1:
Bachelor’s degree in Nuclear Engineering, Nuclear Physics, or related discipline from an accredited institution and 2 years of related experience (or equivalent combination).
Equal to Analyst 2:
Bachelor’s degree in Nuclear Engineering, Nuclear Physics, or related discipline from an accredited institution and 4 years of related experience (or equivalent).
- Working to qualify as an NCS Analyst under LANL NCS Program (ANSI/ANS 8.26)
- Experience supporting implementation of LANL NCS Program
- Assistance in criticality safety evaluations for new or proposed changes
- Research experience and recommending solutions for NCS problems
- Assistance in preparing and presenting NCS technical reports
- Technical guidance for implementation of LANL NCS Program
- Collaboration on documentation of evaluations
- Periodic reviews of fissionable material operations
- Leadership or participation in NCS response to programmatic issues and deviations
- Participation in NCS emergency response preparation
- Independent preparation and presentation of NCS reports
- Conducting NCS training for all levels of employees
Onsite in Los Alamos, NM. All work locations are at the discretion of management.
Note to ApplicantsDue to federal restrictions in the current National Defense Authorization Act, citizens of certain countries who are not Lawful Permanent Residents are prohibited from accessing facilities that support national security laboratories and nuclear weapons production facilities, including Los Alamos National Laboratory.
Position CommitmentRegular appointment employees must serve a period of continuous service in their current position to be eligible to apply for posted jobs. This position commitment is 1 year.
Benefits- PPO or High Deductible medical insurance with a large nationwide network
- Dental and vision insurance
- Free basic life and disability insurance
- Paid childbirth and parental leave
- Award-winning 401(k) (6% matching plus 3.5% annually)
- Learning opportunities and tuition assistance
- Flexible schedules and time off (PTO and holidays)
- Onsite gyms and wellness programs
- Extensive relocation packages (outside a 50 mile radius)
Q clearance required. Selected applicants must be U.S. citizens except in rare circumstances.
DOE 426.2 & HRPPosition is subject to DOE Order 426.2 (Personnel Selection, Training, and Qualification Requirements for DOE Nuclear Facilities) and the DOE Human Reliability Program (drug and alcohol testing, periodic medical and psychological evaluations).
Equal OpportunityLos Alamos National Laboratory is an equal opportunity employer. All employment practices are based on qualification and merit, with no regard to protected categories as required by applicable laws.
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