Mechanical Engineer

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 DescriptionPump & Valve Engineering designs, analyzes, tests, and delivers advanced technologies for the next generation of reactor plant components. We are seeking a new team member to assist in flow control component and test hardware design, and perform fluid and/or structural evaluations, using a combination of first-principles engineering and finite element analysis. The evaluations performed by the selected candidate will quantify and improve the performance of both new and existing component technologies with the goal of maintaining the US Navy's technical edge.In this role, the selected candidate will be empowered to enhance their design, analysis, and collaboration skills through challenging work assignments, mentoring, and in-house training programs. The design and analysis results generated in this role will directly impact important ongoing technology development efforts. Job responsibilities may include hydraulic design, modeling and analysis, test sponsorship, documenting the results of performance evaluations, methods development, and integration with various testing communities and other engineering disciplines. Required Combination of Knowledge and SkillBachelors 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 SkillsStrong problem solving, teaming, and communication skills.Basic understanding of engineering mechanics, fluids, heat transfer, or flow control equipment (e.g., pumps, valves). Prior experience in at least one of the following areas is preferred: equipment design using CAD tools (e.g. Creo, Solidworks), fluid dynamics modeling (e.g., CFX, Fluent, OpenFoam), thermal/structural FEA modeling (e.g., ABAQUS, ANSYS), or design for manufacture (including additive manufacturing).Compensation and BenefitsHealth, Dental, Vision & Voluntary BenefitsDisability, Life & Accident Insurance401(k) Savings program & Capital Accumulation PlanPersonal & Medical Time OffPaid Parental LeaveFlexible Work SchedulesTuition Assistance for Eligible EmployeesStudent Debt Benefit Personal Time Off Sell ProgramEmployee Assistance Program (EAP)Wellness ProgramVisit 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 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.Requisition ID8810- Posted09/22/2026-Bettis Lab-Engineering & Science-2 - 4 Years-0-25%-Job location (country) (1)United StatesJob location (region) (1)West Mifflin, PA