Sr. Mechanical Engineer

Requisition Id 4689 


The Monolith Engineering and Manufacturing group of the SNS Neutron Technologies Engineering (NTE) Section of the Neutron Technologies Division (NTD) is responsible for designing, developing and supporting the SNS monolith systems, which consists of the neutron reflectors, neutron cryogenic and water moderators, beam windows, instrument shutters, and other related components and systems. The group also manages the manufacturing of target and monolith related components, including the mercury target vessels, and provides manufacturing support for the SNS site.  The design and development engineer's primary roles are to support these systems and members of the group by leading development projects and performing mechanical design.  This position requires both leadership and project organizational skills as well as personal technical skills.

Major Duties and Responsibilities: 

  • Identify critical gaps in existing target and monolith system designs and manufacturing. Where existing tools and methods can close the gaps, leads a team to develop and execute the needed changes. Where existing capabilities are insufficient, creates and carries out plans for the development and research required to deliver the missing knowledge or tools.
  • Develop unique solutions to solve manufacturing issues on SNS components by adapting existing tools and processes or developing new tools and processes.  Work closely with other engineers to incorporate these solutions into designs and execute during manufacture.
  • Deliver complex and unique mechanical designs that translate into working, reliable hardware. Work is guided by group goals, policies, and strategies. Advises management in the development of these guides.
  • Work independently to perform complex technical work, including design and analysis.
  • Develop relationships with collaborators and stakeholders across NScD, in other directorates, and outside ORNL.
  • Work to implement state of the art methods and approaches in the organization and shares expertise and new developments through mentoring and training.
  • Deliver high-quality papers, presentations, and reports. Shares results of development and designs to support industry and further R&D.
  • Work with other disciplines and researchers to develop plans and funding proposals to transform discoveries and approaches into working production-grade systems.
  • Maintain a strong commitment to the implementation and perpetuation of ORNL values and ethics
  • Comply with ORNL environment, safety, health, and quality program requirements


Basic Qualifications:

  • BS in mechanical engineering or a related field
  • A minimum of 8 years of relevant experience in design and/or research and development
  • Demonstrated knowledge of mechanical design, analysis, and development
  • Demonstrated knowledge in manufacturing methods and processes
  • Demonstrated hands-on experience using CAD and CAE tools
  • Ability and enthusiasm to work as part of a highly collaborative, dynamic, and diverse team
  • Excellent problem solving and communication skills
  • Must be able to document work in high quality written reports and articles


Preferred Qualifications:

  • MS or Ph.D. in mechanical engineering or a related field, which can reduce the number of required years of experience
  • Experience with Creo and Windchill
  • Familiarity with the ASME Boiler and Pressure Vessel Code
  • Knowledge of design and manufacturing in nuclear applications
  • Experience in writing funding proposals


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

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, coffee stands, 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.

Salary Range
$77,000.00 - 114,000.00
per Year
Salary range estimated by
Oak Ridge, TN 37831, US