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Nuclear Core Design Engineer Jobs (NOW HIRING)

Nuclear Engineer IV

Rockville, MD · Hybrid

$100.40K - $120.30K/yr

Reactor core design and analysis. * Radiation shielding design and analysis. * Nuclear fuel ... Other areas of nuclear engineering or nuclear physics relevant to the design and analysis of small ...

Nuclear Engineer IV

Rockville, MD · On-site

$100.40K - $120.30K/yr

Reactor core design and analysis. * Radiation shielding design and analysis. * Nuclear fuel ... Other areas of nuclear engineering or nuclear physics relevant to the design and analysis of small ...

Senior Mechanical Design Engineer

Bellevue, WA · Hybrid

$101.60K - $140K/yr

TerraPower is a nuclear technology company based in Bellevue, Washington. At its core, the company ... Senior Mechanical Design Engineer TerraPower, LLC. is seeking a highly motivated and resourceful ...

Senior Mechanical Design Engineer

Bellevue, WA · On-site

$101.60K - $140K/yr

TerraPower is a nuclear technology company based in Bellevue, Washington. At its core, the company ... Senior Mechanical Design Engineer TerraPower, LLC. is seeking a highly motivated and resourceful ...

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Nuclear Core Design Engineer information

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$62

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$101

How much do nuclear core design engineer jobs pay per hour?

As of May 31, 2026, the average hourly pay for nuclear core design engineer in the United States is $85.10, according to ZipRecruiter salary data. Most workers in this role earn between $82.69 and $93.75 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Nuclear Core Design Engineer, and why are they important?

To thrive as a Nuclear Core Design Engineer, you need a strong background in nuclear engineering, reactor physics, and thermodynamics, typically supported by a relevant engineering degree. Proficiency with simulation and modeling software such as MCNP, SCALE, or CASMO, and familiarity with regulatory codes are essential. Strong analytical thinking, attention to detail, and effective teamwork set standout professionals apart in this field. These skills ensure safe, efficient, and regulatory-compliant reactor core designs, which are critical for nuclear plant operation and public safety.

What are some common challenges faced by Nuclear Core Design Engineers during new reactor projects?

Nuclear Core Design Engineers often encounter challenges such as balancing safety requirements with optimal reactor performance during new projects. They must navigate complex regulatory standards, work with interdisciplinary teams, and ensure that their designs account for fuel efficiency, thermal limits, and long-term reliability. Close collaboration with safety analysts, operations staff, and regulatory bodies is essential to address evolving project needs and unexpected technical issues. Staying current with technological advancements and adapting designs to new materials or methodologies is also a key part of the role.

What does a Nuclear Core Design Engineer do?

A Nuclear Core Design Engineer is responsible for designing, analyzing, and optimizing the arrangement and performance of fuel assemblies within a nuclear reactor core. Their work ensures the reactor operates safely and efficiently while meeting regulatory requirements and power output goals. This involves complex calculations, simulations, and collaboration with other engineers to assess fuel utilization, thermal limits, and overall core behavior during various operating conditions.

What is the difference between Nuclear Core Design Engineer vs Nuclear Reactor Engineer?

AspectNuclear Core Design EngineerNuclear Reactor Engineer
Primary FocusDesigning and optimizing nuclear reactor cores for safety and efficiencyOperating, monitoring, and maintaining nuclear reactors during operation
Required CredentialsEngineering degree, often with specialization in nuclear engineering, certifications in reactor safetyEngineering degree, nuclear engineering background, reactor operation licenses
Work EnvironmentDesign labs, research facilities, engineering officesReactor sites, power plants, operational control rooms
Industry UsageUsed during reactor design, development, and safety analysis phasesActive during reactor operation, maintenance, and troubleshooting

The main difference is that Nuclear Core Design Engineers focus on designing and optimizing reactor cores before and during construction, while Nuclear Reactor Engineers are involved in the operation and maintenance of reactors once they are active. Both roles require nuclear engineering expertise but serve different stages of the reactor lifecycle.

More about Nuclear Core Design Engineer jobs
What cities are hiring for Nuclear Core Design Engineer jobs? Cities with the most Nuclear Core Design Engineer job openings:
What states have the most Nuclear Core Design Engineer jobs? States with the most job openings for Nuclear Core Design Engineer jobs include:
Infographic showing various Nuclear Core Design Engineer job openings in the United States as of May 2026, with employment types broken down into 20% Full Time, 70% Part Time, 2% Temporary, and 8% Contract. Highlights an 49% Physical, 15% Hybrid, and 36% Remote job distribution, with an average salary of $177,000 per year, or $85.1 per hour.

Thermal Hydraulic Design Engineer

BWX Technologies

Lynchburg, VA

$128K - $189K/yr

Full-time

Posted 4 days ago


BWX Technologies rating

8.1

Company rating: 8.1 out of 10

Based on 29 frontline employees who took The Breakroom Quiz


Job description

At BWX Technologies, Inc. (NYSE: BWXT), we are People Strong, Innovation Driven. Headquartered in Lynchburg, Virginia, BWXT is a Defense News Top 100 manufacturing and engineering innovator that provides safe and effective nuclear solutions for global security, clean energy, environmental restoration, nuclear medicine and space exploration. With more than 7,000 employees, BWXT has 14 major operating sites in the U.S., Canada and the U.K. We are the sole manufacturer of naval nuclear reactors for U.S. submarines and aircraft carriers. Our company supplies precision manufactured components, services and fuel for the commercial nuclear power industry across four continents. Our joint ventures provide environmental restoration and operations management at a dozen U.S. Department of Energy and NASA facilities. BWXT's technology is driving advances in medical radioisotope production in North America and microreactors for various defense and space applications. For more information, visit www.bwxt.com . Follow us on LinkedIn , X , Facebook and Instagram .
BWXT is currently seeking a Thermal Hydraulic Design Engineer for its Advanced Technologies location in Lynchburg, VA!
BWXT is People Strong, Innovation Driven - be part of BWXT's innovation hub. BWXT's Advanced Technologies (AT) group researches, designs, and develops innovative new nuclear reactors, nuclear rocket propulsion systems, and radioisotope production systems for both internal and external customers.
The Advanced Technologies (AT) group at BWXT designs and develops innovative new nuclear reactors and related systems for internal and external customers. AT Engineering is seeking a Thermal Hydraulic Design Engineer with experience in computational fluid dynamics (CFD) to assist in the development of these systems.
If you are looking for a career where your experience is valued, innovative thinking is fostered, and barrier-free teamwork is embraced every day, then this opportunity is for you. The position will be located in the Lynchburg, VA Advanced Technologies office. Relocation benefits are available for this position.
Job Description / Duties:
  • Perform thermal-hydraulic analysis of advanced nuclear reactor designs, which includes a variety of fuel systems, cycle and coolant types.
  • Control a broad scope of studies, from preconceptual through final design.
  • Perform a range of reactor thermal analysis, including using CFD, from quick scoping to design quality.
  • Support the development of reactor thermal modeling, simulation, and optimization.
  • Interact with neutronic core design, fuel performance, mechanical, and system engineers.
  • Work in a reactor design team contributing to a variety of projects.
  • Support development of a reactor thermal-hydraulic engineering qualification program.

Job Qualifications / Requirements:
  • A Bachelor's degree in an Engineering discipline is required.
  • A minimum of twenty (20) years of relevant experience is required.
  • Must be a strong team player with the ability to develop effective relationships with internal and external customers and suppliers.
  • Must be able to learn a variety of new procedures, processes and tools while maintaining various stages of production.
  • Must possess understanding of design control and configuration control concepts and project engineering activities (task plans, schedules).
  • Travel (5-10%) domestic and international is required.
  • Must be a U.S. citizen.
  • Must be able to obtain and maintain a U.S. Department of Energy (DOE) or Department of Defense (DOD) security clearance, whichever is required.

Additional Desired Skillsets:
  • PhD in Chemical, Nuclear or Mechanical Engineering.
  • Prior experience with verification and validation of thermal analysis tools.
  • Prior experience with the CFD tools Ansys Fluent and Fluent Meshing
  • Familiarity with plant analysis tools such as RELAP5-3D or TRACE. Experience with subchannel codes.
  • Knowledge of programming languages such as FORTRAN, Python, C, C++ in a Linux environment.

The base salary range for this position in Virginia (US-VA) at the start of employment is expected to be between $128,000.00 and $189,000.00 per year. However, the base salary offered is based on local job market factors, and may vary further depending on factors specific to the selected job candidate, such as job-related knowledge, skills, experience, and other objective business considerations. Subject to these considerations, the total compensation package for this position may also include other elements, such as an annual cash incentive in addition to a full range of medical, retirement, and/or other benefits. Details of participation in these benefit plans will be provided at such time the selected job candidate receives an offer of employment. If hired, the selected job candidate will be employed 'at-will,' unless employed at a location and in a position subject to a collective bargaining agreement. The company further reserves the right to modify base salary (as well as any other discretionary payment, compensation or benefit program) at any time, including for reasons related to individual performance, company or individual department/team performance, and other market factors.
As a federal government contractor, BWX Technologies, Inc. and any subsidiaries, affiliates and related entities ("BWXT" or the "Company") complies with all federal, state, and local laws and customer requirements regarding health and safety protocols. As such, all BWXT new hires will be required to adhere to applicable Company health and safety requirements within the workplace as a condition of employment.
Applicants selected will be subject to a Federal background investigation and must meet eligibility requirements for access to classified information or matter. Position requires U.S. citizenship with (no dual citizenship) ability to obtain and maintain a Department of Energy (DOE) security clearance which involves an extensive criminal and financial background investigation, drug test and previous employment reference verifications.
BWXT supports diversity and is committed to the concept of Equal Employment Opportunity. We have established procedures to ensure that all personnel actions such as recruitment, compensation, career development, benefits, company-sponsored training and social recreational programs are administered without regard to race, color religion, gender, national origin, citizenship, age, disability or veteran status.
https://www.dol.gov/ofccp/regs/compliance/posters/pdf/eeopost.pdf
https://www.dol.gov/ofccp/regs/compliance/posters/pdf/OFCCP_EEO_Supplement_Final_JRF_QA_508c.pdf
Nearest Major Market: Lynchburg
Nearest Secondary Market: Virginia
Job Segment: Nuclear Engineering, Design Engineer, Thermal Engineering, Defense, DoD, Engineering, Government

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