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Principal Mechanical Engineer

Naval Nuclear Laboratory
West Mifflin, PA Full Time
POSTED ON 2/24/2025
AVAILABLE BEFORE 4/24/2025

Job Details

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 work in a way that you can see directly impacting the mission in 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 Design Engineering 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 Design Engineering Unit supports the Control Drive Mechanism Test Facility, the Large Component Test Facility, and the Hot Quiet Test Facility, all of which perform high pressure / high temperature component testing. The successful candidate would perform fluid-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

Bachelor's degree from an accredited college or university in engineering or science related field and 9 years of relevant experience; or Master's degree from an accredited college or university in engineering or science related field and 7 years of relevant experience; or Currently or previously Shift Supervisor Part II qualified; or qualified SIT and 3 years EOOW qualified in the Nuclear Operations Program; or Currently or previously CRE qualified; or 6 years as SRE; or SRE qualified and 9 years of experience.

Preferred Skills

Experience with dynamic/vibration structural design is a plus.
Experience with hardware design and procurements is also preferred.
Experience with the ASME Boiler Pressure Vessel Code, the B31.1 Power Piping Code, or the B31.3 Process Piping Code is preferred, but not required.

Compensation and Benefits

  • Health, Dental, Vision & Voluntary Benefits
  • Disability, Life & Accident Insurance
  • 401(k) Savings program & Captial 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

$103,100.00 - $161,100.00 annually

Salary information provided is a general guide line 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.

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 is an Equal Opportunity Employer (Veterans/Disabilities) committed to workplace diversity. All qualified applicants will receive consideration for employment without regard to race, color, age, sex, sexual orientation, gender identity, religion, national origin, disability, veteran status, genetic information, or any other criteria protected by federal, state, or local law.
Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.

Salary : $103,100 - $161,100

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