Share this Job

Cooling Systems Engineer

Date: Nov 8, 2022

Location: Oak Ridge, TN, US, 37830

Company: Oak Ridge National Laboratory

Requisition Id 9445 

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



The Cooling Systems Engineer functions within the Cooling Systems Group to achieve engineering design tasks and concurrently monitor and manage operating systems.  We are seeking a collaborative employee who is interested in contributing to an effective team environment, and willing to cooperate and partner with all levels, disciplines, and diverse cultural backgrounds of the organization.


In this role, you will be responsible for providing proficient and reliable operations support consistent with approved procedures.  You will be expected to apply fundamental engineering knowledge to understand and troubleshoot system performance.  You will have the opportunity to participate in troubleshooting, startup, and commissioning of existing or new systems and components.


This position reports to the Cooling Systems Group Leader and interfaces with operators, technicians, engineers, and managers.


Major Duties/Responsibilities: 

  • Independently monitor Cooling Systems operations and give direction to qualified system operators to alter parameters to establish the intended operational condition and achieve SNS production goals.
  • Acts alone to interpret and respond to anomalous operational conditions that require immediate action.
  • Authorizes system operators to start/stop equipment, change operating set points, open/close valves, and provide overall operating direction to achieve the intended operational condition.
  • Report observed operational issues to Senior Operator, other qualified operators, and the Group Leader.
  • Make electronic logbook entries to document changes in the system or component status.
  • Provide engineering support for Cooling Systems equipment and projects.
  • Perform hydraulic analysis using computational fluid dynamics (CFD) software to understand performance limitations in existing systems, design new systems, and select equipment.
  • Assist in the configuration management of system drawings and documents.
  • Provide input and assist in maintaining procedures for operation and maintenance.
  • Conduct walk-downs to ensure the integrity of systems and facilities to maintain quality, performance, and reliability.
  • Participate in operational coordination to facilitate design change implementation and routine maintenance tasks.
  • Provide engineering support to technicians, engineers, and subcontractor personnel within guidelines established by SNS Research Accelerator Division, SNS, and ORNL policies.
  • Perform other duties as assigned.
  • In this role you will be expected to be willing to learn new skills and train others.
  • The SNS and HFIR facilities are in operation 24 hours per day and 7 days a week year-round.  You may be occasionally required to support users and/or facilities during off hours or weekends.
  • Ensure compliance with environmental, safety, health and quality program requirements.
  • 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:

  • BS Degree in Mechanical Engineering or related field.
  • 5 or more years of experience in industrial equipment including pumps, valves, piping, control systems, water chemistry, computerized analysis techniques, and related areas.


Preferred Qualifications:

  • Industrial plant experience.
  • Experience interpreting engineering drawings including flow diagrams, process & instrument diagrams, and plant layout drawings.
  • Knowledge of water chemistry principles and treatment systems.
  • Experience with distributed control systems (DCS).
  • Excellent written and oral communication skills.
  • Motivated self-starter with the ability to work independently and to participate creatively in collaborative teams across the laboratory. 
  • Ability to function well in a fast-paced research environment, set priorities to accomplish multiple tasks within deadlines, and adapt to ever changing needs.




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