Criticality Safety Analyst 1 or 2 at LANL

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Criticality Safety Analyst 1 ($72,500-$118,200) or Criticality Safety Analyst 2 ($80,100-$131,000)

This position will be filled at either the Criticality Safety Analyst (CSA) 1 or 2 level depending on the skills, knowledge, and abilities of the selected candidate.

Criticality Safety Analyst 1:

Duties and Responsibilities of the Position

  • Working to qualify as a Nuclear Criticality Safety (NCS) Analyst under the LANL NCS Program (compliant with ANSI/ANS 8.26)
  • Supporting operating organization personnel in the implementation of the LANL NCS Program
  • Assisting operating organization personnel and qualified criticality safety analysts in criticality safety evaluations for new or proposed changes to existing significant quantity fissionable material operations
  • Conducting research, investigating alternative solutions, and recommending solutions on problems affecting NCS
  • Assisting in the preparation and presentation of NCS technical reports both internal to LANL and external to the criticality safety community (e.g. American Nuclear Society, etc.)

Criticality Safety Analyst 2:

In addition to the duties outlined above, the CSA 2 duties include:

  • Providing technical guidance to operating organization personnel in the implementation of the LANL NCS Program
  • Collaborating with operating organization personnel to author criticality safety evaluations for new or proposed changes to existing significant quantity fissionable material operations
  • Conducting periodic reviews of fissionable material operations
  • Leading and/or participating in NCS response to programmatic issues and criticality process deviations/infractions
  • Participating in NCS emergency response preparation (emergency procedures, plans, exercises, and drills)
  • Independently preparing and presenting NCS technical reports both internally to LANL and externally to the criticality safety community (e.g. American Nuclear Society, etc.)
  • Assisting in the development and/or reviewing new or proposed changes to existing NCS programmatic policy and implementing documents
  • Conducting NCS training for all levels of employees involved in fissionable material operations including Operations personnel and NCS personnel

What You Need

Minimum Job Requirements:

  • Basic knowledgeable of and experience with nuclear physics in general, criticality physics, and accident kinetics, more specifically
  • Basic knowledge of and experience with criticality safety analysis tools such as PARTISN, SCALE/KENO, COG, and/or MCNP
  • Demonstrated technical writing skills and good oral communication skills

Criticality Safety Analyst 2:

In addition to the Minimum Job Requirements above, CSA 2 level requires:

  • Prior criticality safety or related experience
  • Knowledge in the discipline of NCS, including NCS evaluations, program implementation, computation tools, standard, and regulatory guidelines
  • Knowledge on the meaning and use of the ANSI/ANS 8 Series National Standards and applicable DOE Orders, Standards, and Guides
  • Knowledge on the use of the common NCS computer codes and cross sections in terms of modeling and NCS analysis
  • Demonstrated ability to conduct NCS evaluations on a variety of fissile/fissionable material forms.
  • Demonstrated experience in conducting research, investigating alternative solutions, and recommending solutions on problems affecting NCS
  • Ability to conceptualize and communicate major elements of NCS to both technical and non-technical personnel

Education: BS or MS in nuclear engineering, nuclear physics, or related technical discipline

Additional Details:

Clearance: Q (Position will be cleared to this level). Applicants selected will be subject to a Federal background investigation and must meet eligibility requirements* for access to classified matter.

*Eligibility requirements: To obtain a clearance, an individual must be at least 18 years of age; U.S. citizenship is required except in very limited circumstances. See DOE Order 472.2 for additional information.

HRP: This position is subject to the requirements of the DOE Human Reliability Program as specified in 10 Code of Federal Regulation, Part 712, §712.11. These requirements include on going drug and alcohol testing, as well as periodic medical and psychological evaluations.

426.2:This position is subject to DOE Order 426.2, Personnel Selection, Training, and Qualification Requirements for DOE Nuclear Facilities, which establishes entry-level requirements to ensure candidates selected for specific positions can successfully perform the requirements of the job.

New-Employment Drug Test: The Laboratory requires successful applicants to complete a new-employment drug test and maintains a substance abuse policy that includes random drug testing.

Term position: Regular-status Laboratory employees applying for term-status positions may retain regular status with approval of the cognizant Principle Associate Director.

Internal Applicants:Please refer to Laboratory policy P701 for applicant eligibility.

Equal Opportunity:Los Alamos National Laboratory is an equal opportunity employer and supports a diverse and inclusive workforce. All employment practices are based on qualification and merit, without regards to race, color, national origin, ancestry, religion, age, sex, gender identity, sexual orientation or preference, marital status or spousal affiliation, physical or mental disability, medical conditions, pregnancy, status as a protected veteran, genetic information, or citizenship within the limits imposed by federal laws and regulations. The Laboratory is also committed to making our workplace accessible to individuals with disabilities and will provide reasonable accommodations, upon request, for individuals to participate in the application and hiring process. To request such an accommodation, please send an email to or call 1-505-665-4444 option 1.

Where You Will Work_

Los Alamos National Laboratory:

Located in northern New Mexico, Los Alamos National Laboratory (LANL) is a multidisciplinary research institution engaged in strategic science on behalf of national security. LANL enhances national security by ensuring the safety and reliability of the U.S. nuclear stockpile, developing technologies to reduce threats from weapons of mass destruction, and solving problems related to energy, environment, infrastructure, health, and global security concerns.

NCS Division (NCSD):

The NCSD is responsible for providing written technical guidance to assist operations in mitigating the risk of a criticality accident by analyzing normal and abnormal conditions for new or changed significant quantity fissile/fissionable material operations. The NCSD provides general guidance on the implementation of criticality safety limits, the physics of criticality and criticality accidents, training and assistance to operational personnel, and guidance to laboratory management on information, activities, and policies related to criticality safety.

NCS Division Mission:

The NCSD will enable the mission and protect the laboratory by providing sustainable expert leadership to develop and maintain technical tools, training and data necessary to support safe and efficient fissionable material operations at LANL.

NCS Division Vision:

The NCSD will be a continuously improving, agile and transparent program that is supportive of and responsive to safely accomplishing the laboratory mission.

Location: Los Alamos, NM, US

Contact Name: Gonzales, Andrea Jo

Organization Name: NCS/ Nuclear Criticality Safety


Job Title: Criticality Safety Analyst 1/2

Appointment Type: Term Appointment

Req ID: IRC69451

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