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Nuclear Safety Analyst

Sigma Science Inc., is actively seeking Nuclear Safety Analysts to contribute to national security within the science, technology, and engineering fields as part of our team at vital federal research and development installations supporting the Department of Energy.  Current site location is in Y.12 Oak Ridge, TN with intermittent travel to Pantex, Amarillo, TX.

Sigma Science Inc., has an established history of contributing to the success of their customer’s mission.  Do you thrive on the satisfaction of meeting expectations through technical excellence, integrity and quality?  Sigma Science Inc. has 20 years of experience providing nuclear safety, operations, maintenance, engineering, environmental management, project management and administrative support services for federal and commercial clients. 

Job Summary:

Work with nuclear and non‐nuclear facility systems and use accepted methods for mitigation of risk from hazardous materials or facilities.  Perform hazard identification, hazard analysis, facility hazard categorization, accident analysis, and selection of controls.  Develop and revise associated safety basis documents including documented safety analyses, technical safety requirements, un‐reviewed safety question determinations, safety assessment documents, and facility safety plans.  Provide Department of Energy (DOE) standards-based nuclear and non‐nuclear risk and hazard analyses for facilities, associated support equipment, and functional specifications and operations to control or eliminate hazards.  Identify the interrelationship of system safety basis requirements to facility design and process operations. 

In addition to the duties outlined above, the successful candidate may be required to lead nuclear and non‐nuclear risk and hazard analyses to ensure safe operation of nuclear and non‐nuclear facilities and provide procedural direction for development and implementation of safety basis documentation.

Required Skills:

  • Developing/maintaining safety basis documents for facilities and systems with the ability to apply independent judgment for recommending possible course of action
  • Reviewing existing facility configurations and operations, investigating alternative solutions, and making recommendations affecting safety basis
  • Performing risk and hazard analyses for nuclear/non‐nuclear facilities
  • Proficiency in DOE and industry standards on safety basis
  • Excellent oral and written communication skills
  • Experience at DOE facilities
  • Proficiency in multiple safety analysis code applications and capable of independently formulating, executing and interpreting the models and their results
  • Experience performing Unreviewed Safety Question Determinations
  • Considered a subject matter expert in the safety basis field and qualified to perform all core competencies for multiple functional areas

Education and Experience

  • Position requires a bachelor’s degree in Engineering or Science and at least 15 years of related experience [master’s desired].


  • Security 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.

Successful applicants may be subject to random drug testing based on client requirements.

SSI is committed to a policy of equal employment opportunity. We recruit, employ, train, compensate, and promote without regard to race, ancestry, color, sex, religion, creed, age, national origin, citizenship status, disability, medical condition, military and veteran status, marital status, sexual orientation or perceived sexual orientation, gender, gender identity and gender expression, familial status, political affiliation, genetic information, or any other legally protected status or characteristics.

SSI is committed to the principles of equal employment opportunity and to compliance with US laws and regulations.

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