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Computational Nuclear Engineer Jobs (NOW HIRING)

Socket.dev

Computational Nuclear Engineer

Kearny, NJ · On-site

$120K - $180K/yr

We are seeking a highly motivated Computational Nuclear Engineer to join our team, focusing on neutronics and multiphysics simulations for stellarator fusion systems. The ideal candidate will possess ...

Hitachi, Ltd.

Computational Nuclear Engineer

Kearny, NJ · On-site

$120K - $180K/yr

Position Overview We are seeking a highly motivated Computational Nuclear Engineer to join our team,focusing on neutronics and multiphysics simulations for stellarator fusion systems. The ...

Thea Energy

Computational Nuclear Engineer

Kearny, NJ · On-site

$120K - $180K/yr

We are seeking a highly motivated Computational Nuclear Engineer to join our team,focusing on neutronics and multiphysics simulations for stellarator fusion systems. The idealcandidate will possess a ...

Thea Energy Inc.

Computational Nuclear Engineer

Kearny, NJ · On-site

$120K - $180K/yr

We are seeking a highly motivated Computational Nuclear Engineer to join our team,focusing on neutronics and multiphysics simulations for stellarator fusion systems. The idealcandidate will possess a ...

Thea Energy

Computational Nuclear Engineer

Kearny, NJ · On-site

$120K - $180K/yr

We are seeking a highly motivated Computational Nuclear Engineer to join our team, focusing on neutronics and multiphysics simulations for stellarator fusion systems. The ideal candidate will possess ...

Thea Energy

Computational Nuclear Engineer

Kearny, NJ · On-site

$120K - $180K/yr

We are seeking a highly motivated Computational Nuclear Engineer to join our team, focusing on neutronics and multiphysics simulations for stellarator fusion systems. The ideal candidate will possess ...

Nalley Consulting

Nuclear Engineer - Mid and Sr

Reston, VA · On-site

$102K - $122K/yr

Computational science * Fission reactor engineering. Other desired qualifications: * Understanding of chemical, biological, radiological, nuclear, or missile programs. * Work experience at a national ...

Nalley Consulting

Nuclear Engineer - Mid and Sr

Reston, VA · On-site

$102K - $122K/yr

Computational science * Fission reactor engineering. Other desired qualifications: * Understanding of chemical, biological, radiological, nuclear, or missile programs. * Work experience at a national ...

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Computational Nuclear Engineer information

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$105.6K

$150K

How much do computational nuclear engineer jobs pay per year?

As of Sep 12, 2026, the average yearly pay for computational nuclear engineer in the United States is $105,594.00, according to ZipRecruiter salary data. Most workers in this role earn between $98,500.00 and $118,000.00 per year, depending on experience, location, and employer.

What is a computational nuclear engineer?

Computational Nuclear Engineers are professionals who use advanced computer modeling, simulations, and numerical methods to analyze and solve problems in nuclear engineering. Their work supports the design, operation, and safety analysis of nuclear reactors and other nuclear systems. They develop and apply complex software tools to predict reactor behavior, optimize performance, and assess safety scenarios. This role often involves interdisciplinary collaboration with physicists, materials scientists, and other engineers to ensure the safe and efficient use of nuclear technology.

What are the key skills and qualifications needed to thrive as a computational nuclear engineer, and why are they important?

To thrive as a Computational Nuclear Engineer, you need a strong background in nuclear engineering principles, applied mathematics, and physics, typically supported by a degree in nuclear engineering or a related field. Proficiency in specialized simulation software (such as MCNP, SCALE, or SERPENT), programming languages (like Python or C++), and high-performance computing systems is essential. Analytical thinking, problem-solving skills, and effective communication set standout professionals apart in this field. These skills enable accurate modeling, safe reactor design, and effective collaboration on complex nuclear projects.

What are some common challenges faced by computational nuclear engineers in simulating reactor behavior?

Computational nuclear engineers often encounter challenges related to the complexity and scale of simulating nuclear reactor behavior. Accurately modeling physical phenomena such as neutron transport, heat transfer, and fluid dynamics requires advanced algorithms and significant computational resources. Additionally, ensuring the reliability and validation of simulation results against experimental data is critical. Collaboration with physicists, reactor operators, and software developers is common to address these challenges and improve the accuracy and efficiency of simulations.

What is the difference between Computational Nuclear Engineer vs Nuclear Reactor Engineer?

AspectComputational Nuclear EngineerNuclear Reactor Engineer
Required CredentialsEngineering degree, possibly advanced degrees, certifications in nuclear engineeringEngineering degree, licensing, and certifications in nuclear reactor operation
Work EnvironmentResearch labs, simulation centers, design officesReactor facilities, operational plants, maintenance sites
Industry UsageDesign, simulation, modeling of nuclear systemsReactor operation, safety, and maintenance

Computational Nuclear Engineers focus on modeling and simulation of nuclear systems using advanced computational methods, often working in research and design environments. In contrast, Nuclear Reactor Engineers are involved in the operation, safety, and maintenance of nuclear reactors. While both roles require nuclear engineering expertise, their daily tasks and work settings differ significantly.

What are popular job titles related to Computational Nuclear Engineer jobs?

For Computational Nuclear Engineer jobs, the most frequently searched job titles are:

Infographic showing various Computational Nuclear Engineer job openings in the United States as of September 2026, with employment types broken down into 91% Full Time, and 9% Contract. Highlights an 91% In-person, and 9% Remote job distribution, with an average salary of $105,594 per year, or $50.8 per hour.

Computational Nuclear Engineer

Kearny, NJ • On-site

Socket.dev
Network Security • 1 - 10 employees
Learn more about Socket.devexternal

$120K - $180K/yr

Other

Medical, Dental, Vision, PTO

Posted 17 days ago

Job description

About Thea Energy:

Thea Energy is leveraging recent breakthroughs in stellarator physics and engineering to create a faster and simpler approach to commercializing fusion energy. The company is reinventing the stellarator using computer-controlled arrays of planar coils thereby replacing the intricate, complex modular magnets required in all other stellarator architectures. Thea Energy is on a mission to create a limitless source of zero emission energy for a sustainable future.

Position Overview:

We are seeking a highly motivated Computational Nuclear Engineer to join our team, focusing on neutronics and multiphysics simulations for stellarator fusion systems. The ideal candidate will possess a strong background in computational transport methods, with a particular emphasis on multiphysics reactor design, dose rate calculations, and radiation shielding optimization. You will work with minimal supervision, contributing to cutting-edge research and development to ensure the safety and performance of Thea Energy's stellarator systems.

Key Responsibility Areas:
  • Develop and implement advanced workflows for high-fidelity neutronics and related multiphysics simulations in complex 3D stellarator geometries.
  • Conduct simulations of fusion blanket performance, including tritium breeding ratios (TBR), energy deposition, material activation, radiation shielding, and more.
  • Collaborate with cross-disciplinary teams to perform multiphysics coupling (e.g., neutronics to thermal-hydraulics or structural analysis) to refine reactor designs.
  • Perform dose rate calculations and design optimized shielding solutions for personnel and sensitive equipment.
  • Prepare technical reports, presentations, and publications based on simulation results and optimization findings.
Ideal Experience & Skillsets:
  • PhD in Nuclear Engineering, Computational Physics, Applied Physics, or a related field with 2+ years of experience; or a Master's degree in a relevant field with 4+ years of experience.
  • Strong knowledge of Monte Carlo radiation transport codes (e.g., OpenMC, MCNP, Serpent).
  • Proficiency in programming languages commonly used in scientific computing, specifically Python and C++.
  • Proficiency in modern scientific software development best-practices (e.g. git, GitHub, CI)
  • Experience in multiphysics coupling frameworks (e.g., MOOSE, Cardinal, NekRS).
  • Excellent analytical, problem-solving, and communication skills.
Preferred Skills:
  • Experience with nuclear data processing and libraries (e.g., NJOY). Experience with deterministic neutron transport solvers (e.g., Atilla, OpenSN)
  • Familiarity with High-Performance Computing (HPC) environments and parallel programming (MPI/OpenMP).
  • Background in applying machine learning techniques to optimize nuclear simulation results or data handling.
  • Understanding of fusion-specific nuclear challenges, such as first-wall material damage and tritium fuel cycle management.
Personal Attributes:
  • Ability to work independently and manage projects with minimal supervision in a startup environment.
  • Strong attention to detail and a passion for advancing the field of fusion energy research.
  • Willingness to collaborate with a diverse team of scientists and engineers within the company and externally.
  • Persistent optimism and a willingness to take on tough challenges.
  • Excited to think creatively about solutions to difficult problems and not relying solely on what has been done before.
Company Benefits:
  • Salary range: $120,000-$180,000
  • Comprehensive health benefits (e.g. medical/dental/vision)
  • Employee equity stock options
  • 20 days PTO
Diversity and Inclusion:

Thea Energy is an equal opportunity employer committed to creating a company of diverse backgrounds. By creating a diverse environment, we will bring new ideas and approaches to solving some of the world’s hardest (and most important) problems. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, sexual orientation, gender identity or expression, national origin, family or marital status, age, disability, veteran's status, or other characteristic protected by applicable laws and regulations.

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