Offer summary

Qualifications:

BS in Nuclear Engineering or related field with 7+ years of experience, MS with 6+ years, or PhD with 4+ years in nuclear core/fuel design., Expertise in PWR core design, neutronics, and simulation, particularly with CASMO/SIMULATE., Strong communication and technical writing skills, with familiarity in NRC regulations and QA requirements., Proficiency in Python for simulation automation is desirable..

Key responsabilities:

Contribute to the core design and analysis of the SMR-300 reactor, ensuring compliance with NRC regulations and industry standards.

Collaborate closely with internal engineering teams and regulatory stakeholders.

Execute high-quality technical work as an independent contributor on advanced nuclear energy projects.

Utilize software tools such as CASMO/SIMULATE, MCNP, and S5K for core design and analysis.

Job description

POSITION OPEN
Position: Senior Core Design Engineer
Place of Work: Camden (NJ); Jupiter (FL); Cranberry (PA), Madrid (Spain), Bristol (UK), Kyiv (Ukraine).

Holtec International seeks highly experienced applicants for a senior-level position in its nuclear analysis group to support the continued development and licensing of the SMR-300 reactor through its subsidiary, SMR LLC. This contractor role is a fully remote opportunity and is ideal for individuals with significant technical expertise and experience in core design for pressurized water reactors (PWRs), particularly Small Modular Reactors (SMRs).

The selected candidate will be responsible for contributing to the core design and analysis of the SMR-300, with a focus on high-quality technical execution in compliance with NRC regulations and industry standards. The position involves close collaboration with internal engineering teams and regulatory stakeholders, and offers flexibility for an independent contributor to have meaningful impact on an advanced nuclear energy project.

Minimum Technical Requirements:

BS degree in Nuclear Engineering or closely related technical field with at least 7 years of relevant experience
— OR —
MS degree with at least 6 years of relevant experience
— OR —
PhD with at least 4 years of relevant experience in nuclear core/fuel design
Expertise in PWR core design, neutronics, and simulation
Demonstrated experience with CASMO/SIMULATE
Familiarity with NRC regulations and QA requirements
Strong communication and technical writing skills
U.S. work authorization and eligibility to access export-controlled information

Desirable Additional Qualifications:

Proficiency in Python for simulation automation or data processing
Familiarity with core accident analysis methods (e.g., rod ejection)
Experience with core simulation platforms such as MCNP and S5K
Knowledge of licensing methodologies including technical specs, safety margins, and federal regulations

Software Tools Used: CASMO/SIMULATE, MCNP, S5K, Python; Microsoft Office Suite.

Minimum Experience Required:
4–10+ years, depending on academic qualifications.

References Required:
Minimum of 3 external references.

As a technology trailblazer and a prominent innovator in the clean energy industry, Holtec fosters a meritocratic environment conducive to continuous learning and professional growth. Holtec is an equal opportunity employer with a strong commitment to social equity and environmental justice, and gives preference to disabled veterans in its hiring policies. Learn more about Holtec at holtecinternational.com.

Candidates interested in this opportunity should submit a résumé along with at least three references.

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