Nuclear Facilities Engineer ; Mechanical Engineer

Position: Nuclear Facilities Engineer 3/4 (Mechanical Engineer)
What You Will Do

Join the Essential Balance of Plant Systems Group (PFE-EBP) within the Plutonium Facilities Engineering Division, where your work will directly support the day-to-day operations of the Plutonium Facility-critical to our National Defense mission.

As a Mechanical Systems Engineer, you will take ownership of assigned systems, ensuring they operate at peak performance. You'll monitor system health, lead troubleshooting efforts, and collaborate closely with Operations, Maintenance, and other engineering teams to drive continuous improvement.

Our group manages approximately 40 mechanical systems, including cryogenic systems, compressed gases, vacuum systems, circulating water, chemical supply, and more. This is a dynamic, hands-on engineering role ideal for those who enjoy being in the field, walking down systems, and staying closely connected to their operation and maintenance. If you're a proactive, detail-oriented engineer who thrives on real-world impact and technical challenges, we want to hear from you!

Nuclear Facilities Engineer 3 ($125,200 - $211,300)
As a Level 3 Mechanical Systems Engineer, you'll be responsible for overseeing the performance and maintenance of critical systems-such as cryogenics, vacuum, and gas distribution-while driving system improvements through data analysis, design modifications, and cross-functional collaboration. You'll lead troubleshooting efforts, and contribute to long-term system strategy in support of national security objectives.

Nuclear Facilities Engineer 4 ($150,300 - $260,800)
In addition to what was outlined at the lower level, at this level you will be expected to work independently, act as lead to other engineers and groups, provide mentoring to less-experienced peers and colleagues, and bring expert-level technical expertise to the group


What You Need

Minimum

Job Requirements:

• Demonstrated experience working as a mechanical engineer in a major commercial, industrial, or nuclear facility, with a strong focus on facility-related systems such as compressed air, chilled water, vacuum, gases, and chemical systems.
• Strong background in the design, operation, and maintenance of mechanical systems supporting facility infrastructure.
• Skilled in diagnosing and troubleshooting performance issues in complex mechanical systems.
• Experience with applying engineering codes and standards in regulated environments, including IBC, IEBC, ASHRAE, and ASME B31.
• Demonstrated experience in monitoring system performance, evaluating trends, and identifying potential issues affecting system health.
• Ability to conduct engineering analyses and perform calculations to develop and support technical solutions.
• Ability to work independently with minimal guidance for assigned tasks and effectively communicate engineering solutions both verbally and written with management, customers, peers, and craft personnel and to manage multiple tasks requiring varying resource needs and deadlines.
• Skilled in effectively communicating engineering solutions both verbally and written with management, customers, peers, and maintenance personnel.

Additional Job Requirements for Nuclear Facilities Engineer 4:

• Demonstrated ability to prepare and review technical reports and studies as part of establishing and maintaining the Technical Baseline for new and existing facility systems.
• Expert level knowledge of developing design details, calculations, studies, specifications, and special inspections that incorporate the applicable design requirements, including nuclear safety requirements, as applicable.
• Skilled in interfacing and coordinating with other engineering disciplines, Maintenance, and Operations.
• Demonstrated ability to mentor early and mid-career engineers.

Education/Experience at lower level:

Position requires a Bachelor's Degree in Engineering from an ABET-accredited college or university and a minimum of 6 years of practical work experience necessary to perform the responsibilities outlined above. Advanced engineering or technical degree is highly desired.

Education/Experience at higher level:

Position requires a Bachelor's Degree in Engineering from an ABET-accredited college or university and a minimum of 12 years of practical work experience necessary to perform the responsibilities outlined above. Advanced engineering or technical degree is highly desired.

Desired Qualifications:

• Demonstrated experience as a mechanical engineer at a DOE nuclear facility or commercial nuclear facility with a strong background in facility related mechanical systems (e.g. HVAC, Compressed Air, Water systems).
• Demonstrated experience with varying compressed gas systems and cryogenic systems.
• Demonstrated experience with mechanical system computational software (e.g., AFT Fathom/Arrow, Pipe Flow).
• Involvement with National Consensus Code Committee(s)
• Demonstrated experience working in a highly regulated nuclear environment (DOE or NRC regulatory environment)
• Active DOE Q-clearance

Essential Job Functions
(can perform with or without…