Advanced Mechanical Engineer

Naval Nuclear Laboratory
parental leave, tuition assistance, 401(k)
United States, Pennsylvania, West Mifflin
814 Pittsburgh McKeesport Boulevard (Show on map)
Sep 30, 2026
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 Naval Nuclear Laboratory is looking for a Mechanical Engineer to join our team supporting development of the next generation of nuclear propulsion plants for the world's best Navy. This position offers diverse work assignments with opportunities to build or strengthen your design and project management skills, drive implementation of new technology into shipboard applications, and deliver on strategic objectives in a supportive and fast paced environment. Specific duties may include: * Design, Analysis, and testing support of new naval nuclear propulsion components and technologies * Development of improved manufacturing processes to reduce cost and decrease development span times * Component/system design, analysis, and support of secondary system development * Design and analysis of reactor plant structures * Integration of the mechanical work with the broader propulsion plant design team (including electrical, thermal, structural, performance, and nuclear engineers) A knowledgeable staff is available for mentoring, training, and guidance for new and developing engineers. Through exciting and challenging diverse work assignments and a strong mentoring culture, NNL engineers have opportunity to continue gaining technical skills and broadening their experience throughout their careers. 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 4 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 2 years of relevant experience; or Doctorate degree from an accredited college or university in a related technical, engineering, science field; or Currently an Advanced Reactor Training Engineer, Refueling Engineer, or Field (RPCO) Engineer at the Company. Preferred Skills Strong written and verbal communication skills An ability to effectively communicate complex technical concepts Project management skills to prioritize and schedule work. 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 $86,100.00 - $134,600.00 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, 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 controlled substance and illegal under Federal Law. Therefore, FMP is required to test for marijuana. Fluor Marine Propulsion, LLC is an Equal Opportunity Employer, including disability/vets. All qualified applicants will receive consideration for employment without regard to race, color, age, sex, religion, national origin, disability, veteran status, genetic information, or any other criteria protected by federal, state, or local law. Apply Now