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Neutronics Jobs (NOW HIRING)

Last Energy

Senior Nuclear Engineer

Austin, TX · On-site

$103K - $142K/yr

Lead and perform complex thermal-hydraulic and neutronics calculations * Independently verify and approve engineering calculations and safety analyses prepared by peers and junior engineers * Provide ...

Last Energy

Senior Nuclear Engineer

Austin, TX · On-site

$103K - $142K/yr

Lead and perform complex thermal-hydraulic and neutronics calculations * Independently verify and approve engineering calculations and safety analyses prepared by peers and junior engineers * Provide ...

General Matter

Applied AI Engineer

Los Angeles, CA

Automating legacy simulation workflows so engineers can run neutronics with a config file instead of learning decades-old codes from scratch. * Integrating with internal tools- tickets, design-tree ...

General Matter

Applied AI Engineer

Los Angeles, CA · On-site

Automating legacy simulation workflows so engineers can run neutronics with a config file instead of learning decades-old codes from scratch. * Integrating with internal tools- tickets, design-tree ...

Zap Energy

Senior Research Scientist

Everett, WA · On-site

$140K - $200K/yr

Manage or lead the design, fielding, and operations of multiple plasma diagnostic systems (interferometry, spectroscopy, neutronics, Thomson scattering, magnetics, etc.) * Collaborate cross ...

Protingent

Mechanical Designer

Bellevue, WA · On-site

$37 - $74/hr

Structural, Neutronics, Thermal-Hydraulic, Radiological, Safety, etc. * Document design progress, changes, and decisions via Company's internal & external online collaboration workspaces. * Create ...

Vinci

Fuel Engineer F/H

Boston, MA · On-site

... neutronics, or Monte Carlo tools), and with QA governed engineering processes. - Knowledge of materials behavior (e.g., fuel, cladding, structural materials) under irradiation and thermal mechanical ...

Protingent

SolidWorks Drafter

Bellevue, WA · On-site

$52 - $85/hr

Structural, Neutronics, Thermal-Hydraulic, Radiological, Safety, etc. * Document design progress, changes, and decisions via Company's internal & external online collaboration workspaces. * Create ...

Protingent

Mechanical Designer

Bellevue, WA · On-site

$37 - $74/hr

Structural, Neutronics, Thermal-Hydraulic, Radiological, Safety, etc. * Document design progress, changes, and decisions via Company's internal & external online collaboration workspaces. * Create ...

Standard Nuclear, Inc.

Nuclear Engineer

Oak Ridge, TN · On-site

$94K - $112K/yr

Perform neutronics, shielding, dose, and activation analyses to support system design and safety evaluations. * Interpret simulation results and provide engineering recommendations to inform design ...

Standard Nuclear, Inc.

Nuclear Engineer

Oak Ridge, TN

$94K - $112K/yr

Perform neutronics, shielding, dose, and activation analyses to support system design and safety evaluations. * Interpret simulation results and provide engineering recommendations to inform design ...

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Neutronics information

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$106.5K

$154.5K

$186K

How much do neutronics jobs pay per year?

As of Jun 27, 2026, the average yearly pay for neutronics in the United States is $154,474.00, according to ZipRecruiter salary data. Most workers in this role earn between $146,000.00 and $161,000.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Neutronics Engineer, and why are they important?

To thrive as a Neutronics Engineer, you need a solid background in nuclear engineering, physics, and mathematics, typically supported by a relevant degree. Familiarity with reactor physics codes (such as MCNP or SCALE), simulation software, and sometimes a Professional Engineer (PE) license are often required. Analytical thinking, problem-solving abilities, and clear communication are crucial soft skills for effectively interpreting complex data and collaborating with multidisciplinary teams. These skills ensure the safe, efficient, and accurate modeling of nuclear systems, which is essential for reactor design, operation, and regulatory compliance.

What are neutronics?

Neutronics is the study of the behavior and movement of neutrons within nuclear reactors or other systems where nuclear reactions occur. It involves analyzing how neutrons interact with materials, how they are absorbed or scattered, and how their distribution affects the operation and safety of a nuclear reactor. Neutronics specialists use mathematical models and simulations to optimize reactor design, ensure efficient fuel usage, and maintain safety standards. This field is essential for the effective and safe generation of nuclear energy.

What are some common challenges faced by professionals working in neutronics, and how can they be addressed?

Professionals in neutronics often encounter challenges such as accurately modeling complex nuclear systems, managing large datasets, and ensuring strict adherence to safety protocols. These challenges can be addressed by staying updated with the latest simulation tools, collaborating closely with multidisciplinary teams (such as nuclear engineers and safety analysts), and participating in ongoing training. Additionally, effective communication and documentation are essential for ensuring that results are clearly understood and can be acted upon by both technical and non-technical stakeholders.

What is the difference between Neutronics vs Radiation Protection Specialist?

AspectNeutronicsRadiation Protection Specialist
Required CredentialsDegree in nuclear engineering, certifications like NEUP or NEETDegree in health physics, certifications like CHP or RC
Work EnvironmentResearch labs, nuclear power plants, simulation centersField sites, hospitals, nuclear facilities
Industry UsageDesigning reactor cores, neutron transport analysisMonitoring radiation exposure, safety compliance

Neutronics focuses on neutron behavior and reactor design, while Radiation Protection Specialists concentrate on safety and exposure management. Both roles require nuclear-related credentials and often work within the nuclear industry, but their daily tasks and focus areas differ significantly.

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Neutronics jobs near you
Senior Nuclear Engineer

Senior Nuclear Engineer

Last Energy

Austin, TX • On-site

$103K - $142K/yr

Full-time

Posted 18 days ago

Job description

Last Energy is a fast-growing technology company redefining how nuclear power is designed, manufactured, and deployed. We are building a new generation of modular, distributed nuclear plants engineered for speed, scalability, and real-world impact.

We are seeking a Senior Nuclear Engineer to join our core engineering team and drive the analytical rigor behind our microreactor design. This role sits at the intersection of innovation and execution, where complex modeling meets the fast-paced reality of startup deployment. This role will act as both a technical leader and independent thinker, directly influencing design decisions that shape the future of energy.
Key Duties & Responsibilities
  • Lead and perform complex thermal-hydraulic and neutronics calculations
  • Independently verify and approve engineering calculations and safety analyses prepared by peers and junior engineers
  • Provide expert-level review of design basis documents, licensing submittals, and technical evaluations
  • Mentor and guide junior engineers in analytical methods and modeling techniques
  • Develop and maintain detailed models for reactor systems and accident scenarios
  • Participate in peer reviews and regulatory interactions as a technical authority
  • Contribute to continuous improvement initiatives by identifying gaps and proposing innovative solutions
  • Adapt quickly to evolving project needs, regulatory changes, and emergent technical challenges
Qualifications
  • Bachelor's or Master's degree in Nuclear Engineering or a closely related discipline.
  • 7+ years of experience in nuclear systems analysis, safety analysis, or reactor physics.
  • Proficiency with at least two of the following codes: TRACE, MELCOR, MCNP, VERA, SCALE, SERPENT.
  • Demonstrated experience performing and reviewing complex engineering calculations.
  • Strong technical writing and communication skills, with the ability to present to both technical and non-technical audiences.
  • Department of Energy regulatory experience is preferred
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