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Nuclear Core Design Engineer

At BWX Technologies, Inc. (NYSE: BWXT), we are People Strong, Innovation Driven. Headquartered in Lynchburg, Va., BWXT provides safe and effective nuclear solutions for national security, clean energy, environmental remediation, nuclear medicine and space exploration. With approximately 6,400 employees, BWXT has 12 major operating sites in the U.S. and Canada. 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 remediation and nuclear operations management at more than 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. Follow us on Twitter at @BWXTech and learn more at



BWXT is currently seeking a Nuclear Core Design Engineer for its Lynchburg, VA—Ramsey Place location!


The Advanced Technology (AT) group at BWXT designs and develops innovative nuclear reactors and related systems for internal and external customers. AT Engineering is seeking a Nuclear Core Design Engineer to assist in the development of these systems. The Nuclear Core Design Engineer needs to have background and knowledge in nuclear reactor phenomena, neutronic calculations, thermal-hydraulics, modeling, and simulation tools. 


The successful candidate will work as part of a high-performing, innovative, and multi-disciplinary team. 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. 


Job Description/Duties:

  • Performs analysis of advanced core designs which includes a variety of fuel systems, cycle and coolant types.
  • Coordinates multiple engineering disciplines across joint organizational teams.
  • Performs work on a broad scope of studies, from preconceptual through reference design.
  • Performs work using an integrated approach for neutronics, thermal hydraulics, mechanical/stress, and safety analysis, to achieve accelerated reactor design development.
  • Works in a core design team contributing to a variety of projects.


Job Qualifications/Requirements:

  • A Bachelor’s degree in Nuclear or Mechanical Engineering from an ABET-accredited university is required.
  • Must have a minimum of 7 years of experience in thermal analysis for nuclear reactor core design.
  • Must possess excellent verbal and written communication skills to write and deliver high quality technical reports and documentation, including presentations to customers, regulators, and other organizations.
  • Must be a US Citizen with no dual citizenships.
  • Must be able to obtain and maintain a U.S. Department of Energy (DOE) or Department of Defense (DOD) security clearance, whichever is required.


Preferred skills:

  • PhD in Nuclear Engineering from an ABET-accredited university.
  • Prior experience with verification and validation of thermal analysis tools.
  • 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.



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 COVID-19 safety protocols, including, but not limited to, any applicable COVID-19 vaccination and/or testing requirements.  In accordance with current and anticipated federal contractor COVID-19 vaccination requirements, BWXT has implemented a policy that all U.S. employees, including new hires, will be required to be fully vaccinated against COVID-19 by December 8, 2021 for those under a current federal contract mandate, and January 3, 2022 for all others.  This means that any existing BWXT employees and new hires, whether working at a customer site, working remotely, or working in a BWXT facility, will be required to adhere to applicable COVID-19 requirements and will be required to show proof of vaccination as a condition of employment.  Requests for a reasonable accommodation will be reviewed and assessed pursuant to applicable law and Company policy.  Please speak with your BWXT Talent Acquisition Representative to determine which deadline will apply to the work location assigned to the job you are seeking and whether you can satisfy this 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.


Lynchburg VA

Nearest Major Market: Lynchburg
Nearest Secondary Market: Virginia

Job Segment: Hydraulics, Nuclear, Engineer, Nuclear Engineering, Design Engineer, Engineering, Energy