Process Systems Engineer
Oak Ridge National Laboratory
Requisition Id 16837
Overview:
We are seeking a Process Systems Engineer to provide process design and system engineering support to develop, design, implement and provide operations support for a variety of process systems supported by the Target Development Engineering and Operations Section. This position resides in the Target Engineering Group in the Neutron Technologies Division, Neutron Sciences Directorate at Oak Ridge National Laboratory (ORNL). Our group is responsible for activities supporting both new designs (e.g, Proton Power Upgrade Project, Heavy Water Recombination) and modifications to existing technical component utility systems which support neutron production and neutron beam instrument systems.
This position reports to the Target Engineering Group Leader in the Target Development, Engineering and Operations Section.
Major Duties/Responsibilities:
- Support fabrication, commissioning, operation, troubleshooting and maintenance of the unique complex water and gas utility systems.
- Maintain the process design basis documents for the system (e.g., P&IDs, PFDs, mechanical drawings, calculations, operating procedures, applicable parts of the documented hazard and accident analyses, vendor submittals) and act as the design authority for assigned systems.
- Work with Operations and Maintenance staff to ensure reliable operations of all Target Systems.
- Support the Reliability Program by providing system and component information to the Reliability Engineer as required (e.g. system health reports, critical spares, etc.).
- Specify and procure system spare components and ensure integration into the asset management program.
- Produce accurate and concise technical reports and represent SNS at conferences and/or workshops as appropriate.
- Prepare presentations for and respond to recommendations from technical design reviews and advisory committees.
- Evaluate system performance, identify operational trends and support corrections to off-normal operations and accurately communicate technical status and performance to ORNL management.
- Act as the Technical Approver (TA) for procurement of new, replacement or upgraded system equipment.
- Ensure consistency between the design basis and requirements, the system documentation and the physical configuration.
- Develop and approve design changes to systems per NTD procedures.
- Develop and maintain long-term plans for system maintenance and upgrades.
- Enhance the technical/professional skills of others through active mentoring and training.
- Comply with ORNL environment, safety, health, radiation control, and quality program requirements.
- Deliver ORNL’s mission by aligning behaviors, priorities, and interactions with our core values of Impact, Integrity, Teamwork, Safety, and Service. Promote equal opportunity by fostering a respectful workplace – in how we treat one another, work together, and measure success.
Basic Qualifications:
- BS in chemical engineering, nuclear engineering, mechanical engineering or closely related field
- Five or more years of relevant engineering design experience after degree
- Demonstrated experience working with process cooling and ventilation systems
- Demonstrated experience with thermodynamics, fluids, heat transfer, materials, systems controls and mechanics
Preferred Qualifications:
- MS in chemical engineering, nuclear engineering or mechanical engineering
- Familiarity with the ASME Boiler and Pressure Vessel Code and ASME B31 Pressure Piping Codes
- Experience designing systems for operation in radiological environments
- Experience with reactor &/or non-reactor nuclear facilities design, construction, test and checkout and operations
- Experience with activated systems, high purity water cooling systems, inert gas handling and distribution systems, and off-gas treatment system is also desirable
Special Requirements:
- Visa sponsorship is not available for this position.
- This position requires the ability to obtain and maintain an HSPD-12 PIV badge.
For employment at Oak Ridge National Laboratory (ORNL), a Real ID compliant form of identification will be required. Additionally, ORNL is subject to Department of Energy (DOE) access restrictions. All employees must also be able to obtain and maintain a federal Personal Identity Verification (PIV) card as mandated by Homeland Security Presidential Directive 12 (HSPD-12) and Department of Energy (DOE) Order 473.1A, which requires a favorable post-employment background investigation.
To obtain this credential, new employees must successfully complete and pass a Federal Tier 1 background check investigation. This investigation includes a declaration of illegal drug activities, including use, supply, possession, or manufacture within the last year. This includes marijuana and cannabis derivatives, which are still considered illegal under federal law, regardless of state laws.
Benefits at ORNL:
We offer 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, and Employee Discounts. Relocation Assistance is available.
If you have difficulty using the online application system or need an accommodation to apply due to a disability, please email: View email address on us.fitly.work .
#LI-LK1
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.
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.
$90k - $173k
...Senior Process Engineer – RemoteWe are seeking a Senior Process Engineer – Remote. This remote position is based out of our Oak Ridge, TN... ...the overall design and analysis of mechanical components and system designs for nuclear and commercial projects.Collaborate with...SuggestedTemporary workWork at officeRemote workFlexible hours$72k - $120k
...Job Description Overview We are seeking a Process/Chemical Engineer Energy - Remote. This remote position is based out of our Oak Ridge,... ...fuel cycle facility projects. Develops and conceptualizes system architecture, flow diagrams, and piping/instrumentation...SuggestedFull timeTemporary workFor subcontractorWork at officeLocal areaRemote workFlexible hours- ...teams, troubleshoot OT networks, and support Smart Factory initiatives. The role requires advanced CNC programming knowledge, CAD/CAM tool experience, and the ability to mentor junior engineers. DOE security clearance is a consideration for this position. #J-18808-Ljbffr...Suggested
- ...Career Opportunities: Process Engineer - Metal Cycle Operations (20171) Requisition ID 20171 -Posted 08/26/2026 - Engineering - Level of Experience (3) - Travel - 30% or less - Job Location Options (1) What You'll Do The candidate selected will serve as a Process Engineer...SuggestedHourly payInterim roleSecond jobWork from homeFlexible hours
- ...Business specializing in comprehensive engineering and technical support services associated... ...Energy (DOE) nuclear activities. Job Title: Process Engineer – Fuel Forms Duration: Full-... ...handling, coating operations, furnace systems, thermal processing, or chemical manufacturing...SuggestedFull timeMonday to Friday
- ...with Job Search Returning Applicant? Login Now Process Engineer III Job Code: 2026-P2S-031 Location: Oak Ridge, TN... ...services in support of our Nation's security. Using a disciplined systems engineering approach that is supported by an innovative software...Hourly payContract workWork at office
$185k - $215k
...LLC Job OpportunityX-energy LLC conducts a thorough recruiting process and will never issue offers without interview to discuss qualifications... ...multiple process areas and may also serve as the responsible engineer for the design, installation and operation for a process area....Full timeFor subcontractorWork at office- ...Requisition Id 16927 Overview: We are hiring a HPC Systems Engineer to design, operate and maintain clusters, servers, and... ...promote HPC and clustered computing services to researchers who process large data sets and/or develop code as a part of their project...Work at officeRelocation packageFlexible hours
- Requisition Id 16693 Overview:We are seeking a Cooling Systems Engineer to provide technical engineering oversight of cooling systems supporting the Spallation Neutron Source (SNS) and High Flux Isotope Reactor (HFIR). This position resides in the Cooling Systems Group...Relocation packageFlexible hours
- DescriptionNavarro Research and Engineering is recruiting a Mid-to-senior Process Engineer (3922) for a new Nuclear Fuel Facility. Navarro is an award-winning... ...for nuclear, chemical, DOE, or high-hazard facility systems. The position requires a practical process engineer...Full timeContract workTemporary workLocal area
- DescriptionNavarro Research and Engineering is recruiting a Senior/Lead Process Engineer (3920) for a new Nuclear Fuel Facility. Navarro is an award-winning... ..., nuclear, chemical, or other high-hazard facility systems. The position requires a senior engineer capable of leading...Full timeContract workTemporary workLocal area
- ...Process Design Chemical EngineerPROCESS is currently seeking multiple senior level Process Design Chemical Engineers for executing process design and process engineering projects across a variety of industrial market segments. Design assignments are expected to be primarily...Work at office
- ...Ceramic Cleaning Process Engineer As the Cleaning Process Engineer, you will be responsible for the cleaning process of ceramic components. In this role, you will develop, optimize, and maintain cleaning processes in Class 1000 (ISO 6) cleanroom that ensure high-purity...
- ...security. This position will provide support to the Uranium Processing Facility (UPF) located at the Y-12 National Security... ...Job Summary: In this role, you will plan and conduct systems engineering work, and will review and prepare information on requirements...Full timeContract workWork experience placementFor subcontractorWork at officeLocal areaRemote workRelocationFlexible hours
- ...Senior High Performance Computing Engineer - Classified EnvironmentThe Field Intelligence... ..., implementation, and management of HPC systems within a classified environment. We are... ...compliance frameworks, and associated standard processes (e.g., NIST, DISA STIGs). HPC systems...Work at officeRelocation packageFlexible hours
- ...Engineering Position at Y-12 National Security Complex and Pantex PlantAkima Infrastructure Services, LLC (AIS), is actively seeking Engineering... ...from the Department of Energy.ResponsibilitiesCognizant System Engineer/Technical Authority for assigned systems:Coordinates...Contract workFor contractors
- ...Requisition ID 19424 -Posted 08/17/2026 - Engineering - Level of Experience (2) - Travel - 30%... ...(1) What You'll Do The Lifecycle Systems Engineering (LSE) will implement Systems... ...12 site activities including production processes, infrastructure projects, and programmatic...InternshipWork at officeWork from homeFlexible hours
$76k - $119k
...Defense News Top 100 manufacturing and engineering innovator that provides safe and effective... ...Instagram. BWXT is currently seeking a Systems Engineer for its Enrichment Operations location... ...Enrichment Operations facilities and processes. This role ensures system performance,...For contractorsWork at officeLocal area- ...Performs troubleshooting and improvement activities. Applies systems and equipment expertise needed to resolve technical system and... ...environment is desirable. Requires an understanding of Conduct of Engineering, Conduct of Operations, and Conduct of Maintenance for...Hourly pay
- ...Eng III-Systems Engineer NS&EIngenium Professional Services Inc. is a nationally recognized, award-winning, certified Service-Disabled Veteran... ...company with solid experience in project management and process improvement. Founded in 2006 and based in Oak Ridge, TN, Ingenium...Contract workMonday to FridayNight shift
- ...I&C System EngineerThe System Engineering Group within the Nuclear Facility Management Section of the Nonreactor Nuclear Facilities Division (NNFD)... ...role requires a thorough understanding of the operational processes in a multidisciplinary role and working closely with a...
- ...System EngineerWe are seeking a System Engineer to join our team supporting the DOE's Y-12 National Security Complex! This position is full-time and will be based out of Oak Ridge, Tennessee.ResponsibilitiesCoordinate configuration management activities.Assess system health...Full timeFor contractorsWork at officeLocal area
- ...management for Professional, Technical, Engineering, IT and Support Services. We offer full... ...- Company Matched.DutiesAs a Cognizant System Engineer/Technical Authority for assigned... ...in one of the following: manufacturing process equipment, industrial electrical equipment...Contract workFor subcontractorWork at office
- ...Systems EngineerBoston Government Services, LLC. (BGS) is seeking a Systems Engineer to support our client in Oak Ridge, TN. BGS is an engineering, technology, and security... ...with design verification and validation processes (FAT, SAT, commissioning).Knowledge of hazardous...Full timeTemporary workMonday to Friday
- ..., implementation, and management of HPC systems within a classified environment. We are... ...coordinating with vendors and internal engineering teams to implement solutions.Participate... ...environments.Document system architectures, processes, and best practices, and contribute to...Work at office
- DescriptionNavarro Research and Engineering is recruiting a Waste Treatment Systems Engineer in Oak Ridge, TN. Navarro Research & Engineering is an award-winning... ...waste treatment operations, equipment performance, process reliability, and technical problem resolution in a...Full timeContract workTemporary workFor contractorsLocal area
- ...several of the world’s most powerful computer systems, is seeking a highly qualified... ...challenging problems.As an HPC Linux Systems Engineer, you will work within the HPC Scalable... ...compliance frameworks, and associated standard processes (e.g., NIST, DISA STIGs).An equivalent...Work at officeRelocation packageFlexible hours
- ...more about this exciting project at and . The US ITER Systems Engineer is responsible for the application of Systems Engineering supporting... ...of ITER engineering plans, procedures, deliverables, processes and workflows. Coordinate preparations for readiness/design...Full timeWork at officeRelocationRelocation packageFlexible hours
$90k - $173k
...Job Description Overview We are seeking a Senior Process Engineer - Remote. This remote position is based out of our Oak Ridge, TN... ...the overall design and analysis of mechanical components and system designs for nuclear and commercial projects. Collaborate with...Full timeTemporary workWork at officeRemote workFlexible hours$86.45k - $136k
...Defense News Top 100 manufacturing and engineering innovator that provides safe and effective... ...operations where high ‑ speed LabVIEW systems interface with low ‑ speed PLC ‑ controlled... ..., MATLAB, and AI-supported engineering processes. Mentor junior engineers and...For contractorsLocal areaFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Process Systems Engineer. Be the first to apply!
- process engineer Oak Ridge, TN
- process improvement engineer Oak Ridge, TN
- foundry process engineer Oak Ridge, TN
- coating process engineer Oak Ridge, TN
- process engineer injection moulding Oak Ridge, TN
- warehouse process engineer Oak Ridge, TN
- operations support system engineer Oak Ridge, TN
- system performance engineer Oak Ridge, TN
- mission system engineer Oak Ridge, TN
- systems engineer Oak Ridge, TN


