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Senior Nuclear Core Design Engineer

Holtec International

Camden (NJ)

Remote

USD 90,000 - 150,000

Full time

28 days ago

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Job summary

An established industry player is seeking a Senior Core Design Engineer to join their innovative nuclear analysis group. This fully remote role offers an exciting opportunity to contribute to the development of the SMR-300 reactor, focusing on high-quality technical execution and compliance with industry standards. The ideal candidate will have a strong background in pressurized water reactor design and simulation, along with excellent communication skills. Join a forward-thinking company that values continuous learning and professional growth while making a significant impact on clean energy projects.

Qualifications

  • 7+ years of experience in nuclear core/fuel design with a relevant degree.
  • Expertise in PWR core design and simulation tools.

Responsibilities

  • Contribute to core design and analysis of the SMR-300 reactor.
  • Collaborate with engineering teams and regulatory stakeholders.

Skills

PWR core design
neutronics
simulation
strong communication skills
technical writing skills
Python

Education

BS in Nuclear Engineering
MS in Nuclear Engineering
PhD in Nuclear Engineering

Tools

CASMO/SIMULATE
MCNP
S5K
Microsoft Office Suite

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:

  1. 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
  2. Expertise in PWR core design, neutronics, and simulation
  3. Demonstrated experience with CASMO/SIMULATE
  4. Familiarity with NRC regulations and QA requirements
  5. Strong communication and technical writing skills
  6. U.S. work authorization and eligibility to access export-controlled information

Desirable Additional Qualifications:

  1. Proficiency in Python for simulation automation or data processing
  2. Familiarity with core accident analysis methods (e.g., rod ejection)
  3. Experience with core simulation platforms such as MCNP and S5K
  4. 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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