Radiological Engineer

Date: Apr 26, 2024

Location: Oak Ridge, TN, US, 37830

Company: Oak Ridge National Laboratory

Requisition Id 12783 



The Environmental, Safety, Health & Quality Directorate at Oak Ridge National Laboratory (ORNL) invites applications for Radiological Engineer positions within the Nuclear and Radiological Protection Division (NRPD). 


ORNL is the largest U.S. Department of Energy science and energy laboratory, conducting basic and applied research to deliver transformative solutions to compelling problems in energy and security.  ORNL operates five non-reactor nuclear facilities and dozens of radiological facilities that perform nuclear research and isotope production activities to support the advancement of nuclear power applications, renewable energy, basic scientific research, and isotope production for medical and industrial applications.  ORNL also operates the Spallation Neutron Source (SNS), a one-of-a-kind research facility that provides the most intense pulsed neutron beams in the world for scientific research and industrial development. 


The NRPD is seeking Radiological Engineers to provide radiological protection operations technical leadership and field support to ORNL research and facility operations as well technical program support as required.


Major Duties/Responsibilities: 

  • Participate in radiological work planning and development, and implementation of radiological hazard controls, research, and experimental safety summaries, RWPs, and radiological design reviews.

  • Develop technical basis documents, technical evaluations, operational radiological protection procedures, and ALARA Reviews.

  • Perform shielding calculations to support shielding design for a wide range of gamma, x-ray, and neutron intensities and energy spectra.

  • Periodically perform airflow studies in facilities to ensure optimal placement of Continuous Air Monitoring equipment.

  • Support planning and design of nuclear and radiological facility modifications as required and perform calculations in support of engineering control cost/benefit decisions.

  • Review, evaluate, and approve Radiological Work Permits and determine applicable radiobioassay requirements commensurate with the radiological intake hazards 

  • Serve as subject matter expert for glovebox design, air monitoring, ALARA Design, and ALARA programs.

  • Serve on the ORNL Emergency Operations Center support team.

  • Participate in stack monitoring design, calculations, and alert levels.

  • Provide radiological protection expertise for work planning and ALARA Design and Control.

  • Work with NRPD and applicable line management to monitor radiological performance, evaluate data, and develop performance indicators in support of the ORNL Contractor Assurance Program

  • Participate in assessments, critiques, incident investigations, and related reviews at ORNL or other Battelle-affiliated Laboratories.

  • Abide by the principles of Safe Conduct of Research including being personally responsible for ensuring safe operations by raising safety concerns, using a questioning attitude, considering hazards for every task, and never stop learning procedure compliance. 

  • Deliver ORNL’s mission by aligning behaviors, priorities, and interactions with our core values of Impact, Integrity, Teamwork, Safety, and Service. Promote diversity, equity, inclusion, and accessibility by fostering a respectful workplace – in how we treat one another, work together, and measure success.


Basic Qualifications:

  • BS degree in health physics, engineering, or related technical field with a minimum of two years of relevant experience.

  • Working knowledge of radiation detection instrumentation, applied radiation protection principles, and monitoring airborne radioactivity is required.

  • Work will involve various physical requirements and certain working conditions and as such a post offer, pre-hire physical will be required.

  • 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:

  • MS degree with a health physics emphasis, nuclear engineering, or related technical field with one to three years relevant experience.

  • Excellent computer skills, including experience performing complex radiological protection calculations.

  • Experience within the DOE Complex and practical experience implementing a Radiation Protection Program in accordance with 10 CFR 835.

  • Demonstrated technical abilities, and excellence in verbal and written communication are required. Must have good interpersonal skills and be able to work effectively as part of a team.

  • On track toward acquiring Certification by the American Board of Health Physics.

  • Experience working in a research and development environment (i.e., DOE National Laboratory) with high-energy particle accelerators, transuranic, and non-typical isotopes is preferred.


Special Requirements:

  • Physical Requirements: Work involves various physical requirements and working conditions. As such, a pre-hire physical will be required after offer.
  • HSPD-12 PIV badge: This position requires the ability to obtain and maintain an HSPD-12 PIV badge.


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.

If you have trouble applying for a position, please email

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.

Nearest Major Market: Knoxville