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Temporary Nuclear Criticality Safety Engineer Jobs

Pae

Criticality Safety Engineer

Richland, WA · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Amentum is seeking a Nuclear Criticality Safety Engineer based out of our Richland, WA office.Candidates will obtain site specific Nuclear Criticality Safety (NCS) Analyst Qualification to support ...

Amentum

Criticality Safety Engineer

Richland, WA · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Amentum is seeking a Nuclear Criticality Safety Engineer based out of our Richland, WA office. Candidates will obtain site specific Nuclear Criticality Safety (NCS) Analyst Qualification to support ...

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Temporary Nuclear Criticality Safety Engineer information

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$106.5K

$154.5K

$186K

How much do temporary nuclear criticality safety engineer jobs pay per year?

As of Aug 17, 2026, the average yearly pay for temporary nuclear criticality safety engineer in the United States is $154,474.00, according to ZipRecruiter salary data. Most workers in this role earn between $146,000.00 and $161,000.00 per year, depending on experience, location, and employer.

What is the difference between Temporary Nuclear Criticality Safety Engineer vs Nuclear Safety Technician?

AspectTemporary Nuclear Criticality Safety EngineerNuclear Safety Technician
CredentialsTypically requires a degree in nuclear engineering or related field, plus certifications like ANSI/ANS standardsUsually holds technical certifications or associate degrees in nuclear technology
Work EnvironmentWorks in nuclear facilities, performing safety assessments and criticality controlsSupports safety procedures, monitors operations, and assists in safety compliance
Industry UsageCommonly employed during project-based or temporary assignments in nuclear plantsRegularly employed in ongoing safety monitoring and support roles

The Temporary Nuclear Criticality Safety Engineer focuses on assessing and managing criticality safety risks during specific projects or temporary assignments, requiring specialized engineering knowledge. In contrast, the Nuclear Safety Technician provides ongoing support in safety procedures and compliance. Both roles are vital for nuclear safety but differ mainly in scope, responsibilities, and employment duration.

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Temporary Nuclear Criticality Safety Engineer jobs near you

Nuclear Criticality Safety Engineer (3786)

Navarro Inc.

Portsmouth, OH • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 14 days ago

Job description

Navarro Research and Engineering is recruiting for multiple junior and senior Nuclear Criticality Safety Engineering positions located in Oak Ridge, TN, Paducah, KY, and Portsmouth, OH.

Navarro is a premier contractor providing high-quality technical services to DOE, NASA, and DOD. Navarro's success is based on our customer service focus and our well-known responsiveness and innovation. In all we do, either in corporate management or in our services to our clients, we seek for the most effective and efficient approaches to provide best value to our clients.

Performs NCS Engineering job functions as assigned by management. Typical job responsibilities assist and support management in NCS program implementation and engineering system design; which may include duties or activities in one or more of the following functional areas, in addition to other duties as assigned:

  • Perform nuclear criticality safety reviews of existing and proposed nuclear material operations and facilities, facility designs and modifications; and research or processing activities involving fissionable materials.
  • Develop nuclear criticality safety evaluations and program documents that meet applicable NRC/DOE requirements and standards, utilizing nuclear criticality safety software (e.g., SCALE or MCNP) as needed, in support of safe nuclear material operations and maintenance activities.
  • Complete reviews of nuclear criticality safety evaluations and program documents to ensure technical accuracy and compliance with applicable NRC/DOE requirements and standards.
  • Perform tracking and trending of NCS performance.
  • Support NCS operability or engineering evaluations when necessary.
  • Support NCS program implementation and training.
  • Support the development of hazards analysis, accident analysis, and hazard controls and documents the results in a nuclear facility safety basis (i.e., documented safety analysis and technical safety requirements), as requested.
  • Perform NCS work in accordance with contractor or client program documents and procedures.
  • Maintain knowledge of and demonstrates ability to perform work safely in accordance with all approved safety policies, procedures and applicable regulations and performs assigned duties in a safe manner.

Requirements

Minimum Qualifications :

  • BS/BA in Nuclear Engineering (or directly related field) and 3 years of related nuclear criticality safety experience. 
  • Understanding of pertinent nuclear criticality safety codes, governing regulations and industry practices. 
  • Demonstrated proficiency utilizing nuclear criticality safety software (e.g., SCALE or MCNP)
  • Strong interpersonal and communication skills 
  • Must possess a DOE "L/Q" clearance or the ability to obtain a DOE "L/Q" Clearance

Due to the nature of the government contract requirements and/or clearances requirements, US citizenship is required.

Navarro is an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, gender, age, sexual orientation, gender identity, status as a protected veteran, or status as a qualified individual with a disability.

EEO Employer/Vet/Disabled

Benefits

  • Health Care Plan (Medical, Dental & Vision)
  • Retirement Plan (401k)
  • Life Insurance (Basic, Voluntary & AD&D)
  • Paid Time Off (Vacation & Public Holidays)
  • Short Term & Long Term Disability

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