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Senior Nuclear Safety Analyst

Date: Aug 5, 2022

Location: Oak Ridge, TN, US, 37830

Company: Oak Ridge National Laboratory

Requisition Id 8761 


The Nuclear Safety & Experiment Analysis Section within the Research Reactors Division (RRD) seeks mid to senior career applicants for a Nuclear Safety Analyst position to support the High Flux Isotope Reactor (HFIR). The successful candidate will be a member of the Nuclear Safety & Reactor Analysis Group and will provide analytical support for the safe, reliable operation of the HFIR and the adjacent Cold Source facility. 


Major Duties/Responsibilities: 

  • Preparation and maintenance of the HFIR Safety Analysis Report (SAR), Cold Neutron Source Documented Safety Analysis (CS DSA), and the HFIR Technical Safety Requirements (TSRs). 
  • Assure technical compliance with 10 CFR Part 830 Subparts A and B, affecting reactor and facility safety, through implementation of ORNL Standards Based Management System (SBMS) and RRD procedures.
  • Application of the unreviewed safety question (USQ) process per ORNL SBMS and RRD procedure directly to the HFIR and Cold Source Facility.  
  • Participate in periodic meetings and plant health activities. 
  • Serve as the safety specialist on systems engineering teams. 
  • Provide reviews, advice, and recommendations both to RRD management and to staff issues as they develop.
  • Participate in long range planning regarding upgrades, improvements, and maintenance consistent with RRD and ORNL management requests.   
  • Adhere to the rules and regulations that govern the operation of a DOE nuclear facility such as HFIR.
  • Formulate/postulate research and/or testing needed to validate safety analysis assumptions or controls.
  • Participate in Low Enriched Uranium (LEU) fuel development project as needed.
  • Participate in HFIR pressure vessel, permanent beryllium, and guide hall upgrades as needed.
  • Support probabilistic risk assessment (PRA) analysis efforts as needed.
  • Support HFIR seismic upgrades as needed.


Basic Qualifications:

  • B.S. degree in nuclear, mechanical, chemical, electrical, or similar engineering discipline and at least 8 years of relevant experience or M.S degree in relevant field with at least 6 years of relevant experience.
  • Experience in safety analysis, and at least 1 year of nuclear facility experience.
  • Organized, detail-oriented and sensitized to a nuclear safety culture.
  • Thorough understanding of hazard/safety analysis techniques and associated regulations.
  • Possess excellent written and verbal communication skills and experience working in a team environment, with collaboration at all levels, disciplines, and diverse cultural backgrounds both inside and outside the organization.
  • Demonstrated record of customer-oriented, collaborative work ethic.
  • Ability to obtain and maintain a DOE “L” clearance.


This position requires the ability to obtain and maintain a clearance from the Department of Energy. As such, this position is a Workplace Substance Abuse (WSAP) testing designated position. WSAP positions require passing a pre-placement drug test and participation in an ongoing random drug testing program.


Preferred Qualifications:

  • Ph.D. in a relevant science or engineering field with at least 4 years of relevant experience.
  • Working knowledge of computer codes and software, such as RELAP5, COMSOL, MELCOR, and/or MACCS2.
  • Experience developing and applying a PRA for a DOE nuclear facility.
  • Experience at a commercial, research, or naval reactor. 
  • Experience with the Nuclear Regulatory Commission (NRC), including Regulatory Guide 1.70. 
  • Membership and participation in an Energy Facility Contractors Group (EFCOG) nuclear and facility safety working group.


About Neutron Sciences Directorate:
The Neutron Sciences Directorate (NScD) at Oak Ridge National Laboratory (ORNL) operates the High Flux Isotope Reactor (HFIR), the United States’ highest flux reactor-based neutron source, and the Spallation Neutron Source (SNS), the world’s most intense pulsed accelerator-based neutron source.  Together these facilities operate 30 instruments for neutron scattering research, each year carrying out in excess of 1,000 experiments in the physical, chemical, materials, biological and medical sciences for more than 3,000 visiting scientists.  HFIR also provides unique facilities for isotope production and neutron irradiation.  To learn more about Neutron Sciences at ORNL go to




This position will remain open for a minimum of 5 days after which it will close when a qualified candidate is identified and/or hired.

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ORNL is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply.  UT-Battelle is an E-Verify employer.

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