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Experienced Mechanical Engineer; Senior

Listing for: Naval Nuclear Laboratory
Full Time position Listed on 2026-11-14
Job specializations:
Salary/Wage Range or Industry Benchmark: 95700 USD Yearly USD 95700.00 YEAR

Job Description & How to Apply Below

Position: Experienced Mechanical Engineer (Senior)
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 Mechanical Engineering teams in the Future Development Programs department are transitioning from the concept phase and into detailed design for the next naval submarine design project.

Propulsion plant systems and components are being evaluated for targeted improvements to meet project goals and performance requirements, and are being evaluated for sustainability, construction improvements and cost reductions. Additionally, technology and digital improvements are being developed to lay the foundation for future submarine design projects.

Mechanical Engineers in these groups are responsible for integrating the development and design work across multiple disciplines, including structural analysis, heat transfer and fluid flow, electrical, Instrumentation and Control, reactor design and protection engineers, component engineers, etc.

Typical assignments for this position will include defining and evaluating system, component, and plant designs, defining concepts of operations, and evaluating design trade-offs that inform technology development needs and design decisions.

The successful candidate will bring knowledge of system and plant design and/or knowledge of normal and abnormal power plant operations, and the perspective of the operators, to the design and development process. 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 6 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 4 years of relevant experience; or Doctorate degree from an accredited college or university in a related technical, engineering or science field and a minimum of 1 year of relevant experience; or Currently a Senior Reactor Training Engineer, Refueling Engineer, or Field (RPCO) Engineer at the Company.

Preferred Skills Naval Nuclear Propulsion Program plant systems design experience

Operations experience within the NNPP; options include shipboard or prototype plant operations or RPCO construction and test support

Strong written and verbal communication skills to articulate technical information clearly and concisely

Interpersonal skills and leadership to support the group's mission of integration and coordination among multiple varied disciplines

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 $95,700.00 - $ 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, satellite, and vendor locations.

For more than 75 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,…

Position Requirements

10+ Years work experience
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