Researcher in Mechanical Engineering

Oak Ridge National Laboratory

Researcher in Mechanical Engineering

Location: Oak Ridge, TN, US, 37830

Company: Oak Ridge National Laboratory

Requisition Id 11967 


We are seeking a Facilities Mechanical Engineer who will directly support the operations, maintenance, and construction of mechanical systems across the Spallation Neutron Source (SNS), Chestnut Ridge Campus facilities, and the High Flux Isotope Reactor (HFIR). Mechanical systems include piping, HVAC, laboratory exhaust systems, controls systems and integration, ultra-pure water systems and building cranes.


This position resides in the Facilities Management and Engineering (FM&E) Group in the Neutron Technologies Division, under the Neutron Sciences Directorate at Oak Ridge National Laboratory (ORNL). The FM&E group is responsible for design, construction, operations, and maintenance of building and technical systems that enable the accomplishment of ORNL’s science missions.


This position reports to the Group Lead for Facilities Management and Engineering within the Site Services Section.


Major Duties/Responsibilities: 

  • Supports the scientific mission of the SNS Accelerator by researching, understanding, and impacting the overall reliability of the facilities mechanical systems and identifying opportunities for improvements in support of neutron beam production.
  • Plans and schedules maintenance activities and operational outages. Lead pre-job meetings with stakeholders including craft personnel to gain commitment from all team members.
  • Monitor, evaluate and suggest upgrades for building mechanical systems.  Works with maintenance personnel, equipment owners, vendors, suppliers and building managers to conceptualize and promote resolutions to existing building issues.
  • Coordinates emergency repair efforts for critical building equipment.  Restores systems to facility for maximum availability and minimizes impact on facility users for science output.
  • Identifies and maintains inventories of critical spare parts for the Chestnut Ridge Campus facility infrastructure systems.  
  • Plans, implements, and oversees building equipment and systems’ operation including de-ionized water and ultra –pure water systems, laboratory exhaust systems, building HVAC systems, heating water, process water, equipment cooling water, sensible cooling water, and vacuum systems.
  • Leads skilled craft personnel in identifying, troubleshooting, and performing repairs.
  • Serves as the Technical Project Officer for maintenance service vendor contracts.
  • Procures, coordinates, and facilitates the construction and continuous improvement of building systems and equipment. Plans, implements, start-ups, tests, develop PM procedures and trains appropriate personnel.
  • Participates as a team member in vendor selection process.  Develops statements of work to obtain vendor services to maintain and service specialized equipment and systems.
  • Generates drawing redlines to update building as-built drawings.  Performs field verification of equipment and building systems to ensure configuration management of the Chestnut Ridge Campus Site Infrastructure.
  • Works closely with engineers and scientists from non-conventional technical systems to provide outstanding facility support and modifications.
  • Participates in design of systems for new facilities or replacement of aging equipment. Includes evaluation of equipment selections and configuration of associated components.
  • Specifies operation parameters, sequence of operations, selection of proper instrumentation and works with SNS Controls group to design and implement control systems solutions that improve technical system reliability and functionality for conventional facility systems.
  • Participates in project reviews, including presenting to internal and external technical review committees.
  • Ensure compliance with Environment, Safety and Health (ES&H) and Quality Assurance (QA) requirements for operations and subcontracted construction/installation projects.
  • 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:

  • A bachelor’s degree in mechanical engineering or related field.
  • At least 5 years of experience with mechanical systems throughout design, installation, and operations.
  • Knowledge of mechanical engineering principles, codes, and standards.
  • HVAC design, selection, review, installation, trouble shooting and start-up experience.
  • Experience working in an operating facility with the ability to diagnose and trouble-shoot mechanical utility systems.
  • Working knowledge of Microsoft Office products (Outlook, Word, Excel, and PowerPoint).
  • Knowledge of technical concepts of mechanical drafting.


Preferred Qualifications:

  • Strong written and oral communication skills and ability to work with diverse teams of engineers, scientists, and technicians.
  • State of Tennessee Registered Professional Engineer
  • Experience sourcing, managing, and directing subcontracts for service and construction vendors.
  • AutoCAD and Microsoft Project working knowledge.
  • Ultra-pure and de-ionized water systems operation and maintenance experience
  • Wet/Dry Laboratory Mechanical Systems maintenance experience
  • Commissioning experience
  • Test and balancing experience of air and water systems
  • Experience with Clean Room operations and maintenance


Special Requirements:

Physical Requirements: Work involves various physical requirements and working conditions. As such, a pre-hire physical will be required after offer.


Benefits at ORNL:  

ORNL offers competitive pay and benefits programs to attract and retain hardworking 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 the following: 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.


If you have difficulty using the online application system or need an accommodation to apply due to a disability, please email: or call 1.866.963.9545.




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.