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Added 5 mins ago
Software Engineer - Site Controller, Energy Storage
Redwood Materials
San Francisco, CA
…coordination with real-time grid execution. You will collaborate with simulation and controls teams to optimize state-of-charge and battery longevity at the site coordination layer, while…
Added 11 mins ago
Principal Systems Engineer - P5
Boston Scientific
Maple Grove, MN
Develop and apply analytical methods, including modeling, simulation, mathematical analysis, and system characterization, to solve complex engineering problems and drive corrective actions.
Added 14 mins ago
Staff Software Engineer, Simulation
Agility Robotics
Remote, United States
…robots, and we're looking for a senior engineer to help build the simulation software at the foundation of it. You'll be one of the first engineers on a new Simulation team, working…
Added 15 mins ago
Mission Analysis and Modeling Engineer
The Aerospace Corporation
Chantilly, VA
…Engineer/Sr. Project Engineer – Systems Engineering – Modeling and Simulation Engineering) to work in a fast-pace, Government program office responsible for designing and building a new…
Added 19 mins ago
Tribologist
Apple
Santa Clara, CA
Experience working with simulation or modeling teams to turn contact mechanics and wear theory into predictive models
Added 28 mins ago
Applied AI Engineer
Axiomatic_AI
Boston, MA · Axiomatic_AI Middlesex County Cambridge, MA
We aim to revolutionize hardware design and simulation in these industries and are building a team of highly motivated professionals to bring these innovations from research into commercial…
Added 29 mins ago
Manager, Resource Planning
CareMetx
Remote, United States
Added 29 mins ago
Mechanical Design Engineer
Actalent
Raleigh, NC
Utilize FLOEFD or similar thermal simulation software when applicable.
Added 29 mins ago
Mechanical Design Engineer
Actalent
Raleigh, NC
Utilize FLOEFD or similar thermal simulation software when applicable.
Added 30 mins ago
A
Embedded Software Engineer
Actalent
Kansas City, KS
- $41 to $51 USD / hour
…of vehicle systems through structured validation strategies, simulation, and hands-on testing. You will collaborate closely with software development, systems, hardware, manufacturing,…
Added 31 mins ago
Real-Time C/C++ Software Engineer
MIT Lincoln Laboratory
Lexington, MA
…threats and opportunities. Extensive field evaluations and simulation studies are employed to elicit user needs, ensure user acceptance and to enable the successful transition of new…
Added 37 mins ago
Sales Account Director
Akselos
Houston, TX
Akselos is a pioneer in digital technology, revolutionizing the energy industry with our state-of-the-art simulation engineering software. Headquartered in Europe with a strong presence…
Added 37 mins ago
Software Engineer
KBR
Beavercreek, OH
Build and maintain modeling and simulation software, ensuring reliability, scalability, and adherence to industry best practices.
Added 37 mins ago
Senior Embedded Software Engineer (Top Secret Clearance)
STR
Woburn, MA
Added 42 mins ago
Director, Laboratory and Test Operations
IREN
Childress, TX
Hire, develop and qualify the laboratory team of nine across test engineering, modeling and simulation, instrumentation, mechanical trades, safety, data, laboratory operations and facility…
Added 49 mins ago
J
Senior Financial Analyst
United States
- $95,000 to $115,000 USD / year
Added 49 mins ago
Staff Software Engineer, ML Compiler Performance Engineer Co-Design
Google
Mountain View, CA
Experience architecting, validating, or extending high-performance simulation tools, emulation frameworks, or analytical performance modeling pipelines (e.g., roofline models,…
Added 52 mins ago
Simulation & Modeling Engineer
DBD International
Aiken
Technical modelling and simulation across a range of methodologies.
Added 53 mins ago
Summer 2027 - Mechanical Engineering Internship
CesiumAstro
Melbourne, FL
Experience with mechanical FEA tools, such as SolidWorks Simulation or ANSYS.
Added 53 mins ago
Summer 2027 - Electrical Engineering Internship, Hardware
CesiumAstro
Melbourne, FL
Experience with SPICE-based circuit simulation.
Added 54 mins ago
High-Speed Digital Design Engineer
viaPhoton
Naperville, IL
Are comfortable with SI simulation tools such as ADS or HFSS, and with EMI/EMC evaluation and mitigation
Added 1 hour ago
Senior Aircraft Fluid Systems Engineer
Executive Recruiting Group
Remote, United States
…across system architecture, performance analysis, modeling and simulation, supplier collaboration, and certification-ready design to deliver robust aerospace systems for a first-of-its-kind…
Added 1 hour ago
Senior Aerodynamics CFD Engineer
Executive Recruiting Group
Remote, United States
Post-process and analyze simulation and test data. Summarize results in reports and presentations for internal and external stakeholders, as needed.
Added 1 hour ago
ER
Principal Avionics Systems Engineer
Executive Recruiting Group
San Luis Obispo, CA
- $180,000 to $220,000 USD / year
Lead avionics integration and verification across simulation, SIL/HIL, lab, aircraft ground test, and flight test environments.
Added 1 hour ago
ER
Guidance Navigations & Controls Engineer
Executive Recruiting Group
Broomfield, CO
- $120,000 to $175,000 USD / year
Support simulation environment development (MATLAB/Simulink,Python)

Closed listing

Oak Ridge National Laboratory

Gas Testing Engineer

Oak Ridge, TN, United States

This opening has closed.

The original listing is kept below for reference.

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Job details

Closing date: Dec 5, 2026
Experience: A BS degree in Chemical/Nuclear/Mechanical/Electrical/Aerospace Engineering, or a related discipline and 4 years of relevant experience.
Posting language: English
Posted: Nov 1, 2026

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Original job description

Archived listing. The details below describe a past opening.

Requisition Id 17057

Overview:

We are seeking a Gas Testing Engineer who will focus on the development, analysis, and interpretation of gas testing experiments to support isotope enrichment science. This position resides in the Gas Testing & Simulation Group in the Centrifuge Science Section, Enrichment Science and Engineering Division, Isotope Engineering and Science Directorate, at Oak Ridge National Laboratory (ORNL). This group leads the application of machine and cascade theory to develop, execute, and interpret testing evolutions for discovery, performance evaluation, and optimization of enrichment systems. As part of our team, you will provide research and development (R&D) support to strategically advance science and technology of prototype enrichment devices for processing both uranium-bearing and stable isotope process gases.

Major Duties/Responsibilities:

Characterize isotope enrichment centrifuges and related processes. Characterization involves assessments for optimal processing parameters, developing and analyzing approaches to mitigate chemical and physical impediments to processes, and implementing material and design goals.
Develop, write, and execute complex test plans involving significant data collection and interpretation, assessment of results, and incorporation of steps for continuous improvement of processes and communication of activities to senior research staff and management.
Work collaboratively with coworkers and management, as well as independently, to fully document work performed in the forms of technical reports and presentations and to participate in the development of research proposals.
Produce thorough, peer-reviewed scientific reports describing methods, materials, and conclusions based on experimental data analysis.
Interface with principal investigators, managers, engineers, fabricators, modelers, and operations personnel.
Post-process data in a manner to ensure its utility for various model validation efforts.
Understand and contribute to detailed formal design and instrumentation drawings, analysis plans, and fabrication plans in coordination with stakeholders.
Ensure compliance with Environment, Safety and Health (ES&H) and QA 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:

A BS degree in Chemical/Nuclear/Mechanical/Electrical/Aerospace Engineering, or a related discipline and 4 years of relevant experience. An equivalent combination of education and experience may be considered.
A solid understanding of fundamentals of chemical process unit operations with emphasis on separations and chemical reaction science is essential, as is familiarity with and understanding of chemical engineering thermodynamics.
Demonstrated experience working in cross-disciplined teams.
Demonstrated experience in process flow diagrams and equipment design.
The ability to clearly communicate, both verbally and in writing, to sponsoring agencies, other engineers and researchers, technicians, and craftsmen.
The ability to work flexible hours and travel when required.

Preferred Qualifications:

An MS or PhD degree in Chemical Engineering, Aerospace Engineering, or a related discipline.
Active DOE Q clearance.
Active Professional Engineer (PE) license.
Experience in process design, including the following:
System requirements generation.
Chemical design requirements, calculations, and detailed design associated with processes or systems.
Design principles and calculations associated with pipe sizing for specific gas flows and vacuum.
Vacuum system design.
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.

Special Requirements:

Visa sponsorship is not available for this position.
Q Clearane: This position requires the ability to obtain and maintain a clearance from the Department of Energy. As such, this position is a Workplace Substance Abuse (WSAP) testing designated position. WSAP positions require passing a pre-placement drug test and participation in an ongoing random drug testing program.

Relocation:

Moving can be overwhelming and expensive. UT-Battelle offers a generous relocation package to ease the transition process. Domestic and international relocation assistance is available for certain positions. If invited to interview, be sure to ask your Recruiter (Talent Acquisition Partner) for details.

About ORNL:

As a U.S. Department of Energy (DOE) Office of Science national laboratory, ORNL has an impressive 80-year legacy of addressing the nation’s most pressing challenges. Our team is made up of over 7,000 dedicated and innovative individuals! Our goal is to create an environment where a variety of perspectives and backgrounds are valued, ensuring ORNL is known as a top choice for employment. These principles are essential for supporting our broader mission to drive scientific breakthroughs and translate them into solutions for energy, environmental, and security challenges facing the nation.

ORNL offers competitive pay and benefits programs to attract and retain individuals who demonstrate exceptional work behaviors. The laboratory provides a range of employee benefits, including medical and retirement plans and flexible work hours, to support the well-being of you and your family. Employee amenities such as on-site fitness, banking, and cafeteria facilities are also available for added 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: ORNLRecruiting@ornl.gov.

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.

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More about this job

Skills

Process improvement
Communication skills
Research
Presentation skills
Data analysis
Manage quantitative data
Regulatory compliance
Aerospace engineering
Chemical engineering
P.Eng.
Design process
Design principles
Work independently
Recruitment

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