Freelance Nuclear Criticality Safety Engineer Jobs

Boston Government Services, LLC. (BGS) has created this Evergreen Talent Pool post for gathering qualified candidates for a position relating to Nuclear Criticality Safety Engineer to support our client.

BGS is an engineering, technology, and security firm helping to advance missions of national importance for government programs, national laboratories, national security facilities, nuclear operations, and complex projects. We support clients at every stage, from strategic planning and program management to the execution of engineering and technical activities. We work to attract and retain the best talent because the best talent delivers the best results for our clients. Our capabilities are based on our experience in complex, secure, and highly regulated environments. We leverage our experience and capabilities to provide mission-driven solutions tuned to our client's mission needs and strategic direction.

Work that Matters. People that Matter More. At BGS, we believe meaningful work starts with great people. We foster a culture built on respect, collaboration, and accountability—where employees are empowered to contribute ideas, grow professionally, and make an impact. We care about our employees’ well-being through competitive benefits, clear expectations, and an environment that values both excellence and connection.

If you align with BGS’ company values and culture, we would love for you to explore opportunities to join our growing team by checking out the job description below!

Responsibilities:

As the Nuclear Criticality Safety Engineer, you’ll perform criticality safety evaluations for systems that provide the safe handling, storage, processing, and transportation of fissile materials. The work may involve performance of hazard analysis, computational analyses, validation, development of safety controls, documentation, guidance on criticality safety practices, and supporting compliance with applicable regulatory and safety requirements.

• Perform and support nuclear criticality safety evaluations to ensure the safe handling, storage, processing, and transportation of fissile materials.
• Develop, review, and maintain criticality safety documentation, analyses, and procedures in accordance with applicable regulatory and safety requirements.
• Identify, evaluate, and implement criticality safety controls and limits for nuclear operations and projects.
• Provide technical guidance and support to engineering, operations, and safety personnel regarding criticality safety requirements.
• Participate in audits, inspections, and reviews to demonstrate compliance with nuclear safety regulations and standards.
• Support hazard analyses, risk assessments, and safety reviews for nuclear facilities and activities.
• Collaborate with multidisciplinary teams to resolve safety issues and support project execution.
• Assist with the development and delivery of training related to nuclear criticality safety, as needed.
• Maintain awareness of changes in regulations, standards, and industry best practices related to nuclear criticality safety.
• Work effectively in a team environment to communicate and exchange information.

Qualifications:

• Bachelor’s degree in Nuclear Engineering, Mechanical Engineering, Chemical Engineering, Physics, or a related technical discipline; or a high school diploma (or equivalent) with relevant technical experience will be considered in lieu of a degree.
• Minimum of 5+ years of experience working in the nuclear industry, including environments involving nuclear materials, nuclear safety, or regulated nuclear operations.
• Experience supporting or performing safety analyses, technical evaluations, or safety-related documentation.
• Familiarity with nuclear safety principles, regulatory requirements, and industry standards (DOE, NRC, or equivalent).
• Strong analytical, problem-solving, and technical writing skills.
• Ability to work effectively with multidisciplinary engineering, operations, and safety teams.
• Proficiency in use of MCNP or SCALE for criticality safety analyses.
• Proficiency with standard office software (e.g., Microsoft Office.)

Location/Work Arrangement:

• Schedule is hybrid, part-time, Monday – Friday, work hours based on project needs.

Benefits:

BGS offers a competitive total compensation package to eligible employees. Benefits include Health, Dental, Vision, Life Insurance, Paid Vacation, 401K, Long and Short-Term Disability.

EEO:

BGS is an Equal Opportunity/Affirmative Action employer. All qualified applicants are encouraged to apply and will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, or protected veteran status.

Exclusive Agreement Disclaimer:

BGS has standing contracts with federal agencies throughout the United States. We require an affirmative exclusive agreement to represent all candidates to our clients. By submitting this application, you are consenting to allow BGS to represent you as a candidate for the role in which you are applying.