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Naval Nuclear Laboratory

60 Naval Nuclear Laboratory Reactor Engineer Jobs Hiring Near You

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Naval Nuclear Laboratory Jobs Information

What is it like to work at Naval Nuclear Laboratory?

The Naval Nuclear Laboratory is a research and development organization that values innovation, collaboration, and a commitment to excellence in advancing the nation's nuclear security and energy capabilities. The laboratory is structured into various teams and departments, working together to develop and apply cutting-edge nuclear technologies, with a focus on a safe and secure work environment that adheres to strict safety protocols. Working at the Naval Nuclear Laboratory may appeal to candidates who are passionate about nuclear science and technology, and who are interested in contributing to critical national security and energy initiatives.

What makes Naval Nuclear Laboratory an attractive place to work?

The Naval Nuclear Laboratory is a leading research and development organization that plays a critical role in advancing the nation's nuclear security and energy capabilities. As a workplace, the Naval Nuclear Laboratory offers a dynamic environment that fosters innovation, collaboration, and technical excellence, with opportunities for employees to work on cutting-edge projects and contribute to the development of new technologies. Joining the Naval Nuclear Laboratory provides a chance to be part of a prestigious organization that makes a significant impact on national security and energy policy, with opportunities for professional growth and development in a stable and secure work environment.

Do workers at the Naval Nuclear Laboratory get paid breaks?

Sometimes. Only some people get paid breaks.
40% of people say they don’t get paid breaks.
Based on data from 5 people who took the Breakroom Quiz between December 2024 and May 2026.

Does the Naval Nuclear Laboratory pay people when they’re sick?

Yes. Most people get paid when they’re sick.
100% of people say they would get paid if they were sick but scheduled to work.
Based on data from 7 people who took the Breakroom Quiz between December 2024 and May 2026.

Is the health insurance from the Naval Nuclear Laboratory affordable enough for their workers?

Most people say the health insurance costs are okay.
83% of people say the health insurance costs are okay
Based on data from 6 people who took the Breakroom Quiz between March 2025 and May 2026.

How easy is it to get time off at the Naval Nuclear Laboratory?

Most people find it easy to get time off.
100% of people report it’s easy to get time off.
Based on data from 7 people who took the Breakroom Quiz between December 2024 and May 2026.

How easy is it to take sick days at the Naval Nuclear Laboratory?

Most people find it easy to take sick days.
100% of people report that it’s easy to take time off if they are sick.
Based on data from 7 people who took the Breakroom Quiz between December 2024 and May 2026.

Do people at the Naval Nuclear Laboratory feel treated with respect by their managers?

Most people feel treated with respect by their managers.
67% of people say they’re treated with respect by their managers.
Based on data from 6 people who took the Breakroom Quiz between December 2024 and May 2026.

Do people at the Naval Nuclear Laboratory get to take their breaks without interruption?

Most people get breaks without interruption.
100% of people report that they get to take their breaks without interruption.
Based on data from 6 people who took the Breakroom Quiz between December 2024 and May 2026.

Is it stressful to work at the Naval Nuclear Laboratory?

Some people feel stressed here.
43% of people say they often feel stressed at work.
Based on data from 7 people who took the Breakroom Quiz between December 2024 and May 2026.

Do people at the Naval Nuclear Laboratory enjoy their jobs?

Only some people enjoy their job.
43% of people report they don’t enjoy their job.
Based on data from 7 people who took the Breakroom Quiz between December 2024 and May 2026.

Do people at the Naval Nuclear Laboratory recommend working with their team?

Only some people recommend working with their team.
57% of people report that they wouldn’t recommend working with their immediate team to a friend.
Based on data from 7 people who took the Breakroom Quiz between December 2024 and May 2026.

Do people get enough training when they start at the Naval Nuclear Laboratory?

Most people got enough training when they started.
83% of people report they got enough training when they started working here.
Based on data from 6 people who took the Breakroom Quiz between December 2024 and May 2026.

Do people get support to advance at the Naval Nuclear Laboratory?

Most people are given support to advance their career here.
In the last year, 80% of people report being given support to advance their career here.
Based on data from 5 people who took the Breakroom Quiz between December 2024 and May 2026.

Do people think the Naval Nuclear Laboratory’s headquarters understands what’s happening where they work?

Most people think headquarters doesn’t understand what’s happening where they work.
80% of people think that this employer’s headquarters or owners don’t have a good understanding of what’s really happening where they work.
Based on data from 5 people who took the Breakroom Quiz between December 2024 and May 2026.

What other companies are hiring for Reactor Engineer jobs?

What are the most popular jobs at Naval Nuclear Laboratory?

What are the most popular categories at Naval Nuclear Laboratory?

Infographic showing various Reactor Engineer job openings at Naval Nuclear Laboratory in the United States as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% Physical job distribution.

Nuclear Engineer (Plant Analysis), Associate (Entry Level)

Naval Nuclear Laboratory

West Mifflin, PA • On-site

$63K - $97K/yr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Posted 5 days ago

Naval Nuclear Laboratory rating

9.1

Company rating: 9.1 out of 10

Based on 7 frontline employees who took The Breakroom Quiz

4th of 49 rated military and defense

Job description

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

Are you interested in learning about the nuclear power propulsion systems on the US Navy's aircraft carriers and submarines? The Naval Nuclear Laboratory is seeking an entry level engineer to join the Fleet Reactor Engineering department to lead evaluations of a wide range of nuclear reactor operations and transients. This is an excellent opportunity to gain an integrated understanding of how many different reactor designs operate while developing analytical skills that support our important mission and keep our sailors, the public, and the environment safe. The successful candidate's duties could include, but are not limited to: thermal hydraulic model development and analysis, researching and developing probabilistic models for reactor plant safety, understanding and communicating nuclear plant accident progression, developing scripts to run our models and post-process results, working productively and efficiently with a team of knowledgeable professionals to document different analyses, and understanding and communicating results to coworkers, managers, and Naval Reactors.

NNL develops and supports the world's safest and most advanced reactor plants and as an engineer in the Fleet Reactor Engineering department, your contributions will be directly tied to this important mission!

Required Combination of Knowledge and Skill
  • Bachelors degree from an accredited college or university in a related engineering or science field; or
  • Masters degree from an accredited college or university in a related engineering or science field.
Preferred Skills
  • Degrees in Nuclear and Chemical Engineering are preferred, but not required.
  • Experience with thermal-hydraulic analysis, scripting, and coding preferably with reactor safety computer codes such as RELAP5-3D or MELCOR or post-processing in MATLAB or Python.
  • Experience with fluid dynamics, heat transfer, thermodynamics, and other related subjects.
  • Ability to understand large/complex systems including fluids, heat transfer, instrumentation and control systems, and electrical components.
  • Strong written and verbal communications skills with an ability to articulate technical ideas in a clear and concise manner.
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
$63,900.00 - $97,800.00 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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