Principal Facilities Engineer

Principal Facilities Engineer at Naval Nuclear Laboratory operated by FLUOR Marine in Idaho Falls, Idaho, United States Job Description About Us Working at the Naval Nuclear Laboratory we foster pride in belonging to an organization whose culture is made up of these core values: Trust, Empowerment, and Collaboration. Our company promotes a positive culture while ensuring the safety and reliability of our nation's naval nuclear reactors, and training the Sailors who operate those reactors in the U.S. Navy's submarines and aircraft carrier Fleets. Looking for a lifetime career? Apply today! Job Description The Spent Fuel Handling Recapitalization Project (SFHP) is seeking an experienced mechanical engineer to join the Spent Fuel Handling Recapitalization Project (SFHP) at the Naval Nuclear Laboratory. As an engineer on the Facility Engineering team, you will be asked to support multiple engineering disciplines. Your primary responsibility will be to provide oversight during commissioning; additional responsibilities will include support of mechanical engineering tasks, design reviews, and subcontractor requirement compliance reviews. You are expected to learn the details of the facility mechanical design and provide contractor oversight through multiple phases of construction from design, construction, system installation, commissioning, and facility turnover. Required Combination of Knowledge and Skill Bachelors degree from an accredited college or university in a related technical, engineering or science field and a minimum of 9 years of relevant experience; or Masters degree from an accredited college or university in a related technical, engineering or science field and a minimum of 7 years of relevant experience; or Doctorate degree from an accredited college or university in a related technical, engineering, science field and a minimum of 3 years of relevant experience; or Currently a Principal Reactor Training Engineer, Refueling Engineer, or Field (RPCO) Engineer at the Company. Preferred Skills

• Experience in commissioning large commercial/industrial facilities.
• Excellent technical writing skills.
• Strong communicator with diverse organizations and technical disciplines, including remote working.
• Experience working with standard building codes and code interpretations. Background in reviewing specifications, drawings, other project requirements and enforcement of requirements.
• Experience in scheduling, tracking, overseeing, and monitoring execution of mechanical work tasks.
• Demonstrated ability to drive resolution to technical problems Compensation and Benefits Health, Dental, Vision & Voluntary Benefits Disability, Life & Accident Insurance 401(k) Savings program & Capital Accumulation Plan Personal & Medical Time Off Paid Parental Leave Flexible Work Schedules Tuition Assistance for Eligible Employees Student Debt Benefit Personal Time Off Sell Program Employee Assistance Program (EAP) Wellness Program Visit us online to view all NNL benefits!

Pay Range $106,200.00 - $166,000.00 annually Salary information provided is a general guideline only. Annual salary is based upon candidate experience and qualifications, as well as market and business considerations. The Naval Nuclear Laboratory is operated for the U.S. Department of Energy (DOE) by Fluor Marine Propulsion, LLC (FMP), a wholly owned subsidiary of Fluor Corporation. Naval Nuclear Laboratory personnel are FMP employees who work at four DOE facilities: Bettis Atomic Power Laboratory, Knolls Atomic Power Laboratory, Kenneth A. Kesselring Site, and Naval Reactors Facility, and at the U.S. Department of Defense-owned Nuclear Power Training Unit-Charleston. FMP employees also have an established presence at numerous shipyards and vendor locations. For nearly 70 years, the Naval Nuclear Laboratory has developed advanced nuclear propulsion technology, provided technical support, and trained world-class nuclear operators to ensure the safe and reliable operation of our nation's submarine and aircraft carrier Fleets. The Naval Nuclear Laboratory is a national asset solely dedicated to the Naval Nuclear Propulsion Program. We rely on the dedication and innovation of our nearly 8000 engineers, scientists, technicians, and support personnel. All candidates must be U.S. citizens. Applicants selected will be subject to a Federal background investigation and must meet eligibility requirements for access to classified matter. FMP is a government contractor and maintains a drug free workplace and workforce. All candidates must be able to pass a drug test in compliance with FMP company policy and 10 CFR 707. Marijuana is a Federal Schedule I... For full info follow application link.

• Equal Employment & Accessibility
• Fluor Marine Propulsion, LLC is an Equal Opportunity Employer, including disability/vets.

Any applicant with a physical or mental disability who requires special assistance or a reasonable accommodation for any part of the application, please contact us at: - 518-395-7474 - NNLDisabilityAccommodations@unnpp.gov

Job Posting:

2535354

Posted On:

May 01, 2026

Updated On:

May 01, 2026