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Associate Nuclear Engineer and Physicist Nuclear

Naval Nuclear Laboratory
parental leave, tuition assistance, 401(k)
United States, Pennsylvania, West Mifflin
814 Pittsburgh McKeesport Boulevard (Show on map)
Nov 05, 2025
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 seeking a highly motivated, self-driven, entry level nuclear engineer to join the Future Reactor Concepts team. This position offers the unique opportunity to become a member of the team that focuses on: (1) defining the reactor core design spaces and technology required for a next generation attack submarine targeting high-level notional goals, and (2) evaluating core cost versus performance capability trade-offs. An entry-level candidate will be expected to use their nuclear engineering education to assess the neutronics performance of new technology concepts in support of improving the performance of naval reactors. The successful candidate must also have a passion to develop a broad understanding of how multiple disciplines impact the reactor core design space. The project is currently in the conceptual design phase, and the work may be performed with simple, first-principles-based scoping tools utilizing the latest nuclear design codes. This phase will be followed by a formal core design effort requiring high fidelity nuclear model development and qualification. This project requires frequent and effective communication with other core design, materials performance, core manufacturing, and reactor plant development groups.

Required Combination of Knowledge and Skill

  • Bachelors degree from an accredited college or university in nuclear engineering or physics; or
  • Masters degree from an accredited college or university in nuclear engineering or physics.

Preferred Skills

  • Strong academic performance, demonstrated by a cumulative GPA of 3.2 or above
  • Experience with Python programming
  • Clear and concise communication and presentation skills
  • Academic projects, Intern, or Co-Op experience in nuclear engineering
  • Experience working in a collaborative multidisciplinary engineering environment
  • High intrinsic motivation to learn

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
$63,300.00 - $96,900.00 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.

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