STS Target Systems Mechanical Engineer

Date: Jun 7, 2023

Location: Oak Ridge, TN, US, 37830

Company: Oak Ridge National Laboratory

Requisition Id 10524 


The Second Target Station (STS) project at Oak Ridge National Laboratory (ORNL) is now seeking a Mechanical Engineer to join our team. We believe that diversity and inclusion are essential to the success of the project, and we welcome applicants from all backgrounds and identities. Learn more at


As a Mechanical Engineer on the STS project, you will play a crucial role in the objective to build the world-leading high brightness Neutron Science Facility. You will have the opportunity to work with a diverse team of professionals and contribute to groundbreaking research in a variety of fields, including energy production and storage, medical advancements, and environmental studies.


As a member of the STS team, you will have access to professional development opportunities and a supportive community of colleagues who share your passion for innovation and discovery. Join us in becoming part of the team and build the best possible research facility for ORNL and the US research community.


Job Description: 

The Mechanical Engineer participates in and contributes to the design, engineering and integration of the Target Systems scope. The Mechanical Engineer is responsible for providing calculations, detail drawings, design specifications, procurement support, installation support, and testing support for the assigned portion of Target Systems scope under the direction of a senior or lead engineer. This role reports to the STS Neutron Production Systems Group Leader and interfaces with engineers, scientists and other designers across and outside the project.


Major Duties and Responsibilities:

  • Prepare clear, complete analyses and other design-related deliverables from models, layouts, sketches and from written or verbal instructions.
  • Communicates and collaborates with engineers, designers, scientists and vendors throughout the design process.
  • Assists senior or lead engineers with team coordination and management of deliverable timelines.
  • Participate and lead R&D and prototyping of proposed equipment and systems
  • Contribute to various project document types, including but not limited to:
    • 3-D CAD models
    • Drawings
    • Requirements documents.
    • Design and Analysis Calculations.
    • Technical Specifications
    • Statements of Work.
    • Interface control documents
    • Installation & Test Plans.
  • 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:

  • Bachelor’s degree in an engineering, scientific or closely related discipline. 
  • A minimum of two years of professional experience in design, assembly, analysis or testing of complex mechanical systems
  • Ability to communicate engineering problems and design concepts through written and oral presentation to engineers, designers, scientists and other project partners.


Preferred Qualifications:

  • Advanced degree in an engineering discipline
  • Professional experience demonstrating an understanding of mechanics, dynamics, thermodynamics, etc.
  • Familiarity with Creo for 3D modeling. Experience with other CAD packages may be considered in lieu of Creo experience.
  • Experience in Finite Element Analysis (FEA) of components and systems using ANSYS, CFX, FLUENT, ABAQUS, or other standard tools.
  • Experience developing written calculation packages documenting hand calculations, simulation models and finite element models to verify requirements and demonstrate design details.
  • Basic familiarity with coding in python, MATLAB, or other common languages and tools.
  • Professional experience with drawings, schematics and P&IDs, including codes and standards such as Geometric Dimensioning and Tolerancing (GD&T)
  • Experience engineering systems for an accelerator or nuclear environment


Measures of Effectiveness:

  • Successfully develops high quality engineering designs and drawing packages.
  • Successfully perform mathematical calculations under the supervision of an experienced engineer.
  • Successfully interacts with designers and engineers to develop ideas into workable engineering solutions.


About Oak Ridge National Laboratory: 


ORNL offers competitive pay and benefits programs to attract and retain talented people. The laboratory offers many employee benefits, including medical and retirement plans and flexible work hours, to help you and your family live happy and healthy. Employee amenities such as on-site fitness, banking, and cafeteria facilities are also provided for convenience. 


Other benefits include: Prescription Drug Plan, Dental Plan, Vision Plan, 401(k) Retirement Plan, Contributory Pension Plan, Life Insurance, Disability Benefits, Generous Vacation and Holidays, Parental Leave, Legal Insurance with Identity Theft Protection, Employee Assistance Plan, Flexible Spending Accounts, Health Savings Accounts, Wellness Programs, Educational Assistance, Relocation Assistance, and Employee Discounts. 


Working Here:

Leveraging the talents of its world-class researchers and exceptional support staff, Oak Ridge National Laboratory is helping solve critical scientific and technical challenges and, in so doing, creating economic opportunity for the nation. ORNL provides access to unique facilities, laboratories, and equipment, drawing thousands of visiting researchers each year. A vibrant and welcoming scientific community, ORNL embraces the pursuit of innovative ideas and invests in its people to ensure their success. 


Living Here:

Located in the foothills of the Great Smoky Mountains, ORNL’s campus is just one hour away from the national park. Within a day’s drive of all major cities on the East Coast, ORNL provides the best of both worlds: proximity to the great outdoors and urban centers with diverse cultural attractions. The city of Oak Ridge, Tennessee has 150 miles of shoreline for water recreation, rowing, and boating; and nearby Knoxville, Tennessee is home to the thriving research campus of the University of Tennessee and a historic downtown known for its dining, theaters, shopping, and cultural and music festivals.


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