New

Advanced Mechanical Engineer

Naval Nuclear Laboratory
parental leave, tuition assistance, 401(k)
United States, Pennsylvania, West Mifflin
814 Pittsburgh McKeesport Boulevard (Show on map)
Feb 10, 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 Would you like to get away from your desk and get your hands on some hardware, working on cutting-edge technical workin a way that you can see directly impacting the missionin a laboratory/test environment If you want to use your Mechanical Engineering knowledge and skills to solve real world problems and see your ideas, come to life, then the Materials Test Unit in the Bettis Test Programs Department is looking for you! With design and implementation cycles lasting from weeks to months you can quickly have direct input to solve real problems that are affecting the Navy by developing new technologies that will advance the program's mission, Apply today! The Materials Test Unit supports the Advanced Materials Test Laboratory which performs material testing supporting primary and secondary plant development. The successful candidate would perform mechanical system and hardware design, ASME code calculations, piping flow and flexibility analyses, equipment selection and procurement, as well as maintaining and troubleshooting test systems within the Laboratories. The candidate would work with a diverse team of engineers, scientists, technicians, project managers, and vendors to deliver unique, one-of-a-kind test systems that support the Naval Reactors program. 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 Previous work in testing facilities and infrastructure to select, maintain, and troubleshoot electro-mechanical devices (valves, pumps, heaters, heat exchangers, flow meters, pressure vessels). Experience with designing, troubleshooting, and maintaining mechanical systems, particularly in support of operating fluid systems with electro-mechanical devices (valves, heaters, pumps, flowmeters, etc). Applied knowledge of pressure equipment, ASME B31 series, and fluid/mechanical system design and operations in industry is a plus. Motivation to pursue advances in technology, make decisions, and deliver results. Experience using 3D CAD software packages to evaluate suitability of a design based on functional requirements, design codes, and constraints (budget, physical space available, interferences, etc) 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 $85,200.00 - $133,200.00 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 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