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Nuclear Safety & Reactor Analysis Lead

Date: Oct 18, 2021

Location: Oak Ridge, TN, US, 37830

Company: Oak Ridge National Laboratory

Requisition Id 6103 


The Nuclear Safety and Experiment Analysis (NSEA) Group within the Research Reactors Division (RRD), Neutron Sciences Directorate (NScD) seeks applications for the Nuclear Safety & Reactor Analysis lead position at the High Flux Isotope Reactor. This position reports to the Nuclear Safety and Experiment Analysis Group Leader.  We are seeking a leader who is comfortable working in a team environment, with collaboration at all levels, disciplines, and diverse cultural backgrounds both inside and outside the organization.

Major Duties and Responsibilities:

  • Leads and supervises the Nuclear Safety & Reactor Analysis team in support of the RRD/HFIR mission
  • Preparation and maintenance of the HFIR Safety Analysis Report (SAR), HFIR Technical Safety Requirements (TSRs), and the HFIR Cold Neutron Source Documented Safety Analysis (CS DSA)
  • Preparation and maintenance of the HFIR safety documents such as the HFIR Safety Related Equipment List, the HFIR Hazards Analysis, and the HFIR Beyond Design Basis Event Enhanced Evaluation
  • Ensures technical compliance with 10CFR830 Subparts A and B, affecting reactor safety, through implementation of ORNL Standards Based Management System (SBMS) and RRD procedures
  • Assists other RRD groups with the resources necessary to comply with nuclear safety requirements relative to their respective functions, disciplines and responsibilities
  • Collaborates with the Safety Basis Authority, the Experiments and R&D ProgramsLead, and others within RRD (e.g., Operations, Systems Engineering) to ensure safe reactor operations within the DOE approved safety envelope
  • Oversees the implementation of the HFIR vessel life extension program, including providing the analytical support necessary to ensure continued safe operation of the HFIR vessel
  • Ensures the application of the USQ process per ORNL SBMS and RRD procedures
  • Acts as the designate of the RRD Nuclear Facility Manager (NFM), as necessary, for the approval of HFIR USQDs/USQDSWs per ORNL SBMS
  • Develops and maintains capability for safety analysis modeling codes (e.g. ATHENA, BLASTFX, MCNP, MELCOR, MACCS2, ORIGEN, RELAP5), staying current with developments in research reactor safety analysis efforts
  • Provides technical analyses services, including safety analysis, as needed
  • Ensures adherence to the rules and regulations that govern the operation of a DOE nuclear facility
  • Ensures compliance with environment, safety, health and quality program requirements
  • Communicates regularly with U.S. Department of Energy regulators and other stakeholders.
  • As a member of the ORNL scientific community, you will be expected to commit to ORNL's Research Code of Conduct. Our full code of conduct, and a statement by the Lab Director's office can be found here:


Basic Qualifications:

  • Bachelors degree in an engineering discipline, engineering physics, or a related technical field plus 10 years of relevant experience.
  • Experience managing, motivating and leading professionals.
  • Excellent communication skills including verbal, presentation, and writing skills.
  • The ability to plan, organize, and execute initiatives relying on both direct and matrixed staff.
  • Experience leading projects and an understanding of project management fundamentals.


Preferred Qualifications:

  • Master's Degree in an engineering discipline or related field.
  • Experience performing or leading nuclear safety analysis at a DOE reactor facility
  • Familiarity with one or more modeling and simulation tools or analytical calculations in support for safe operation of a reactor.

Other Job Requirements:

This position requires the ability to obtain and maintain a DOE “L” clearance.


This position is a Workplace Substance Abuse program (WSAP) testing designed position which requires passing a pre-placement drug test and participation in an ongoing random drug testing program in which employees are subject to being randomly selected for testing. The occupant of this position will also be subject to an ongoing requirement to report to ORNL any drug-related arrest or conviction or receipt of a positive drug test result.


About Our 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

Benefits at ORNL:
UT-Battelle offers a quality benefits package, including a matching 401(k), contributory pension plan, paid vacation, and medical/dental plan options.  Onsite amenities include a credit union, medical clinic, cafeteria, and fitness facilities.

Moving can be overwhelming and expensive.  UT-Battelle offers a generous relocation package to ease the transition process.  Domestic and international relocation assistance is available for certain positions.  If invited to interview, be sure to ask your Recruiter (Talent Acquisition Partner) for details.

For more information about our benefits, working here, and living here, visit the “About” tab at




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.

We accept Word (.doc, .docx), Adobe (unsecured .pdf), Rich Text Format (.rtf), and HTML (.htm, .html) up to 5MB in size. Resumes from third party vendors will not be accepted; these resumes will be deleted and the candidates submitted will not be considered for employment.

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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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