Senior Software Engineer

Date: Sep 9, 2023

Location: Lynchburg, VA, US

Company: BWX Technologies

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 Senior Nuclear Software Engineer for its Advanced Technologies location in Lynchburg, VA or Knoxville, TN!


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.


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 either in Knoxville, TN or Lynchburg, VA.


Job Description / Duties:

  • Develop software applications for reactor simulations and design optimization.
  • Architect a reactor simulation tool framework to enable users to perform a large variety of reactor analyses.
  • Work with teams of engineers (mechanical, electrical and software) and internal customers to design, build, maintain, and upgrade simulation tools.
  • Generate and execute software tests plans and develop support source code documentation and user manuals.
  • Integrate applications/systems with third-party hardware and software.


Job Qualifications / Requirements:

  • A minimum of a Bachelor's degree in an Engineering field of study (e.g., Software Engineering, Materials Science, Computer Engineering, Mechanical or Nuclear Engineering, etc.) from an ABET-accredited university is required.
  • Must have a minimum of four (4) years of relevant experience.
  • Must be proficient in C++, Python, Continuous Integration / Continuous Delivery (CI / CD), Git.
  • Must have an interest in nuclear products and a passion for world-changing innovation.
  • A mix of remote and on-site work is required.
  • Travel is flexible, 10-20% domestic and international possible.
  • Must be a U.S. citizen with no dual citizenship.
  • 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:

  • Experience with Scrum / Agile.
  • Experience working in Engineering / Scientific compute frameworks / applications.
  • Skills developing parallel compute capabilities (CUDA, MPI, OpenMP).
  • Familiarity working with nuclear, engineering or physics simulation tools.



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 and other health and safety protocols.  As such, all BWXT new hires will be required to adhere to applicable Company COVID-19 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.


Nearest Major Market: Lynchburg
Nearest Secondary Market: Virginia

Job Segment: Test Engineer, Nuclear Engineering, Software Engineer, Defense, DoD, Engineering, Government