STS Instrument Systems Mechanical Designer

Date: Nov 27, 2023

Location: Oak Ridge, TN, US, 37830

Company: Oak Ridge National Laboratory

Requisition Id 11293 


ORNL is a U.S. Department of Energy (DOE) Office of Science national laboratory, with an extraordinary 80-year history of solving the nation’s biggest problems. We have a dedicated and creative staff of over 6,200 people! ORNL’s decadal vision for diversity, equity, inclusion, and accessibility (DEIA) is to cultivate an environment and practices that foster diversity in ideas and in the people across the organization, as well as to ensure ORNL is recognized as a workplace of choice. These elements are critical for enabling the execution of ORNL’s broader mission to accelerate scientific discoveries and their translation into energy, environment, and security solutions for the nation.


If you are a Mechanical Designer with a passion to produce high quality engineering design packages for components and subsystems of a neutron scattering instrument, consider joining our team! The position resides in the Instrument Systems Engineering (ISE) Group within the Second Target Station (STS) Project at Oak Ridge National Laboratory (ORNL).


As part of the ISE team, you will have the opportunity to engage in the design of a complex, integrated neutron scattering instrument. Each instrument is a scientific experiment station with unique requirements and incorporates custom configurations of neutron optics & choppers, detectors & support structures, positioning devices, vacuum and/or pressure vessels, sample environments, neutron & biological shielding, and others, many of which are first-of-a-kind or one-of-a-kind. In this role, you will work alongside other instrument designers, engineers, and scientists to fully develop these component and subsystem designs. You will be responsible for developing component and subsystem designs and detailed fabrication drawings. You will support the responsible engineer in preparing technical specifications and other procurement-related documents. This position would be ideal for those who would like to work in a machine design development environment.


Major Duties and Responsibilities:

  • Take complex engineering designs from conception through manufacture and build
  • Successfully communicate and collaborate with engineers and scientists throughout the design process
  • Create engineering models and drawings using Creo/Windchill
  • Prepare clear, complete and accurate working plans and detail drawings from layouts, rough, or detailed sketches and from written or verbal instructions
  • Perform tolerance stack ups to assure proper fit in assemblies
  • 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 encouraging a respectful workplace – in how we treat one another, work together, and measure success.


Basic Qualifications:

  • Associates degree in an engineering field with a minimum of 5 years of relevant experience. An equivalent combination of education and design experience may be considered instead of an associates degree.
  • At least 3 years of experience using 3D CAD modeling software. Creo with Windchill use is preferred, but extensive experience with other CAD packages will also be considered in lieu of Creo experience.
  • Knowledge of the technical concepts of drafting and engineering principles, codes, and standards
  • Basic working knowledge of Geometric Dimensioning and Tolerancing (GD&T)
  • Ability to effectively communicate design concepts to engineers and other designers


Preferred Qualifications:

  • Experience with Creo and WindChill, as well as Creo skeletons and top-down design
  • Experience in design for manufacturing
  • Experience working in an accelerator or nuclear environment
  • Experience working in a team environment with other designers working together on large assemblies comprised of thousands of parts and sub-assemblies
  • Experience in weldment design and American Welding Society (AWS) symbology
  • Demonstrated scommunicating with vendors and fabricators


About the Second Target Station Project:

The Second Target Station (STS) is a >$2Billion Department of Energy project to be constructed at the ORNL Spallation Neutron Source (SNS) over the next decade. The STS will provide wholly new capabilities for the study of a broad range of materials with neutron scattering and support thousands of users from the physical, materials, and applied sciences as well as industry. The science capabilities provided by the instrument suite at the STS will complement those of the two existing neutron scattering user facilities at ORNL: the First Target Station (FTS) of the SNS and the High Flux Isotope Reactor (HFIR). We will deliver the highest peak brightness cold neutrons in the world, which together with advances in neutron optics, instrumentation, and detectors, will ensure U.S. leadership in neutron scattering for decades to come. STS will be capable of supporting 18 individual neutron scattering instruments (beamlines), each of which transports neutrons from the source to a shielded end station that houses a user-provided sample along with a suite of detectors. Please see for more information.


UT-Battelle is recognized by our employees and the community as an inclusive environment where diversity is valued and individuals and teams are inspired to contribute fully to the organization's success. ORNL is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply.


Visa sponsorship is not available for this position.


Relocation assistance is not available for this position.


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