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Nuclear Mechanical Engineer

Date: Sep 15, 2021

Location: Oak Ridge, TN, US, 37830

Company: Oak Ridge National Laboratory

Requisition Id 6569 


We are seeking a Nuclear Mechanical Engineer who will focus on the process improvements necessary to translate research tests into radioisotope production and processing operations occurring in high-hazard remote locations such as hot cells, glove boxes and shielded caves. This position resides in the Target Production and Infrastructure Development (TPID) group in the Radioisotope Science and Technology Division, Isotope Science and Engineering Directorate at Oak Ridge National Laboratory (ORNL).   TPID uses unique facilities at ORNL including the High Flux Isotope Reactor (HFIR) and the Radiochemical Engineering Development Center (REDC), to enable the production of a variety of important radioisotopes, including plutonium-238 for deep-space exploration, californium-252 for industrial uses, and superheavy elements for scientific research and discovery.


Major Duties and Responsibilities:

  • Lead and perform engineering calculations, prepare specifications, perform analyses and testing of equipment, perform readiness assessments, issue reports and maintain related data.
  • Lead in the design and oversee the development through installation of a variety of complex systems and equipment for remote radiochemical processing and nuclear materials handling
  • Develop individual parts, assembly, and control design documents (P&IDs, models and engineering drawings)
  • Seek consistent results in operation of each system within specified tolerances; provide recommendations to make each system operate efficiently
  • Provide imaginative, thorough engineering solutions to a wide range of complex, ambiguous, and/or difficult problems.
  • Serve in professional societies and standards development committees
  • 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:

  • Bachelor of Science in Mechanical or Nuclear Engineering
  • 5 or more years of related experience is required, with demonstrated experience in the design, fabrication, and operation of complex electro-mechanical systems within process environments. 
  • Work towards a relevant advanced degree may be applied towards up to 2 years of experience.
  • Experience with solid modeling and design software packages
  • Proven communication skills, including technical writing


Preferred Qualifications:

  • Experience in an R&D or production, testing and schedule-driven environments
  • Machining and fabrication shop experience
  • Demonstration of design and process team experience as well as experience in process development and automation
  • Manufacturing or fabrication environment quality experience, i.e., NQA-1
  • Experience in maintaining high levels of process documentation and quality control and assurance

DOE Security Clearance Requirement:

This position requires the ability to obtain and maintain a Q 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.


About the Isotope Science and Engineering Directorate (ISED):
Established in 2020, the Isotope Science and Engineering Directorate is strengthening Oak Ridge National Laboratory's leadership in isotope production and enrichment technology innovation. ISED is guiding the Lab's pursuit of the fundamental science and technology that broadens the application of isotopes for energy, environmental, medical, and national security purposes. These efforts are made possible through the High Flux Isotope Reactor, the Radiochemical Engineering Development Center, ORNL's other nuclear facilities, and an assemblage of world-leading scientists and engineers.  Please visit for more information about ISED.

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.

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.

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