Applications include RELAP7 (reactor systems analysis), Rattlesnake (radiation transport), BISON (nuclear fuels performance), Marmot (microscale materials), MAMMOTH (reactor physics), Grizzly ...
Applications include RELAP7 (reactor systems analysis), Rattlesnake (radiation transport), BISON (nuclear fuels performance), Marmot (microscale materials), MAMMOTH (reactor physics), Grizzly ...
Nuclear Engineering Internship - Summer 2027
Oak Ridge, TN · On-site
$16 - $20.75/hr
Medical
Dental
Vision
Retirement
PTO
Core Design (Radiation Transport and Shielding Design, Radiation Detection, Reactor Physics (Neutronics and Thermal Hydraulics), and Fuel Cycle Analysis) * Thermal and Safety Methods - KP-SAM Code ...
Nuclear Engineering Internship - Summer 2027
Oak Ridge, TN · On-site
$16 - $20.75/hr
Medical
Dental
Vision
Retirement
PTO
Core Design (Radiation Transport and Shielding Design, Radiation Detection, Reactor Physics (Neutronics and Thermal Hydraulics), and Fuel Cycle Analysis) * Thermal and Safety Methods - KP-SAM Code ...
Nuclear Engineer, Core Physics
El Segundo, CA · On-site
$106K - $146K/yr
Medical
Dental
Vision
Life
PTO
The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be ... About the Role Radiant is a seeking a Nuclear Engineer, Core Physics responsible for designing and ...
Quick apply
Nuclear Engineer, Core Physics
El Segundo, CA · On-site
$106K - $146K/yr
Medical
Dental
Vision
Life
PTO
The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be ... About the Role Radiant is a seeking a Nuclear Engineer, Core Physics responsible for designing and ...
Nuclear Engineer, Core Physics
El Segundo, CA · On-site
$104K - $125K/yr
Medical
Dental
Vision
Life
PTO
The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be ... About the Role Radiant is a seeking a Nuclear Engineer, Core Physics responsible for designing and ...
Nuclear Engineer, Core Physics
El Segundo, CA · On-site
$104K - $125K/yr
Medical
Dental
Vision
Life
PTO
The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be ... About the Role Radiant is a seeking a Nuclear Engineer, Core Physics responsible for designing and ...
Nuclear Engineer, Core Physics
El Segundo, CA · On-site
$106K - $146K/yr
Medical
Dental
Vision
Life
PTO
The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be ... About the Role Radiant is a seeking a Nuclear Engineer, Core Physics responsible for designing and ...
Nuclear Engineer, Core Physics
El Segundo, CA · On-site
$106K - $146K/yr
Medical
Dental
Vision
Life
PTO
The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be ... About the Role Radiant is a seeking a Nuclear Engineer, Core Physics responsible for designing and ...
Nuclear Engineer, Core Physics
El Segundo, CA · On-site
$120 - $170/hr
Medical
Dental
Vision
Life
PTO
The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be ... About the Role Radiant is a seeking a Nuclear Engineer, Core Physics responsible for designing and ...
Nuclear Engineer, Core Physics
El Segundo, CA · On-site
$120 - $170/hr
Medical
Dental
Vision
Life
PTO
The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be ... About the Role Radiant is a seeking a Nuclear Engineer, Core Physics responsible for designing and ...
This role reports into the Nuclear Safety Analysis organization and works closely with licensing, reactor design, and health physics teams as the company advances toward pilot deployment and ...
This role reports into the Nuclear Safety Analysis organization and works closely with licensing, reactor design, and health physics teams as the company advances toward pilot deployment and ...
Nuclear Engineer (Fuel & Core Design)
Jackson, MS · On-site
$90 - $130/hr
Provide reactor physics and fuel criticality expertise to support the analytical and design basis of Entergy's nuclear plants. * Leverage operating experience and industry best practices to ensure ...
Nuclear Engineer (Fuel & Core Design)
Jackson, MS · On-site
$90 - $130/hr
Provide reactor physics and fuel criticality expertise to support the analytical and design basis of Entergy's nuclear plants. * Leverage operating experience and industry best practices to ensure ...
Senior Nuclear Engineer
El Segundo, CA · On-site
$133.50 - $207.90/hr
Medical
Dental
Vision
Life
PTO
You will own modeling methods and reactor physics calculations of neutronics parameters such as reactivity, kinetics parameters, and energy deposition distributions used within our cutting‑made ...
New
Senior Nuclear Engineer
El Segundo, CA · On-site
$133.50 - $207.90/hr
Medical
Dental
Vision
Life
PTO
You will own modeling methods and reactor physics calculations of neutronics parameters such as reactivity, kinetics parameters, and energy deposition distributions used within our cutting‑made ...
New
Nuclear Engineer (SMR / MMR Reactor Design, Licensing & Safety Programs)
Irvine, CA · On-site
$90 - $150/hr
Medical
Dental
Vision
Retirement
PTO
BaRupOn is actively developing Small Modular Reactor (SMR) and Micro Modular Reactor (MMR ... Bachelor's degree in Nuclear Engineering, Mechanical Engineering, Physics, or a closely related ...
Nuclear Engineer (SMR / MMR Reactor Design, Licensing & Safety Programs)
Irvine, CA · On-site
$90 - $150/hr
Medical
Dental
Vision
Retirement
PTO
BaRupOn is actively developing Small Modular Reactor (SMR) and Micro Modular Reactor (MMR ... Bachelor's degree in Nuclear Engineering, Mechanical Engineering, Physics, or a closely related ...
Senior Nuclear Engineer
El Segundo, CA · On-site
$150 - $210/hr
Medical
Dental
Vision
Life
PTO
You will own modeling methods and reactor physics calculations of neutronics parameters such as reactivity, kinetics parameters, and energy deposition distributions used within our cutting-edge ...
Senior Nuclear Engineer
El Segundo, CA · On-site
$150 - $210/hr
Medical
Dental
Vision
Life
PTO
You will own modeling methods and reactor physics calculations of neutronics parameters such as reactivity, kinetics parameters, and energy deposition distributions used within our cutting-edge ...
Senior Nuclear Engineer
El Segundo, CA · On-site
$133K - $184K/yr
Medical
Dental
Vision
Life
PTO
You will own modeling methods and reactor physics calculations of neutronics parameters such as reactivity, kinetics parameters, and energy deposition distributions used within our cutting-edge ...
Senior Nuclear Engineer
El Segundo, CA · On-site
$133K - $184K/yr
Medical
Dental
Vision
Life
PTO
You will own modeling methods and reactor physics calculations of neutronics parameters such as reactivity, kinetics parameters, and energy deposition distributions used within our cutting-edge ...
Senior Nuclear Engineer
El Segundo, CA · On-site
$111K - $152K/yr
Medical
Dental
Vision
Life
PTO
You will own modeling methods and reactor physics calculations of neutronics parameters such as reactivity, kinetics parameters, and energy deposition distributions used within our cutting-edge ...
Senior Nuclear Engineer
El Segundo, CA · On-site
$111K - $152K/yr
Medical
Dental
Vision
Life
PTO
You will own modeling methods and reactor physics calculations of neutronics parameters such as reactivity, kinetics parameters, and energy deposition distributions used within our cutting-edge ...
Senior Nuclear Engineer
El Segundo, CA · On-site
$133K - $184K/yr
Medical
Dental
Vision
Life
PTO
You will own modeling methods and reactor physics calculations of neutronics parameters such as reactivity, kinetics parameters, and energy deposition distributions used within our cutting-edge ...
Quick apply
Senior Nuclear Engineer
El Segundo, CA · On-site
$133K - $184K/yr
Medical
Dental
Vision
Life
PTO
You will own modeling methods and reactor physics calculations of neutronics parameters such as reactivity, kinetics parameters, and energy deposition distributions used within our cutting-edge ...
Nuclear Engineer, Core Physics
El Segundo, CA · On-site
$106.50 - $146.48/hr
Medical
Dental
Vision
Life
PTO
Perform various reactor physics calculations (neutronic and transient analyses) to verify proposed testing sequence addresses all requirements. * Document testing procedures and support operator ...
Nuclear Engineer, Core Physics
El Segundo, CA · On-site
$106.50 - $146.48/hr
Medical
Dental
Vision
Life
PTO
Perform various reactor physics calculations (neutronic and transient analyses) to verify proposed testing sequence addresses all requirements. * Document testing procedures and support operator ...
Reactor Engineer I, II, III, Senior (Nuc) - RBS
Saint Francisville, LA · On-site
$80 - $115/hr
Candidates must meet or exceed ANSI/ANS 3.1‑1978, hold a bachelor's degree in Engineering or the Physical Sciences, and have four years of experience in reactor physics, core measurements, core ...
Reactor Engineer I, II, III, Senior (Nuc) - RBS
Saint Francisville, LA · On-site
$80 - $115/hr
Candidates must meet or exceed ANSI/ANS 3.1‑1978, hold a bachelor's degree in Engineering or the Physical Sciences, and have four years of experience in reactor physics, core measurements, core ...
Partner cross-functionally with reactor physics, mechanical, structural, nuclear safety, and systems engineering teams Phase Continuity * Carry IC&E responsibility across all program phases ...
Partner cross-functionally with reactor physics, mechanical, structural, nuclear safety, and systems engineering teams Phase Continuity * Carry IC&E responsibility across all program phases ...
Director Instrumentation, Control, and Electrical - Reactor
Torrance, CA · On-site
Medical
PTO
Partner cross-functionally with reactor physics, mechanical, structural, nuclear safety, and systems engineering teams Phase Continuity * Carry IC&E responsibility across all program phases ...
Director Instrumentation, Control, and Electrical - Reactor
Torrance, CA · On-site
Medical
PTO
Partner cross-functionally with reactor physics, mechanical, structural, nuclear safety, and systems engineering teams Phase Continuity * Carry IC&E responsibility across all program phases ...
Director Instrumentation, Control, and Electrical - Reactor
Torrance, CA · On-site
$225 - $300/hr
Medical
PTO
Partner cross-functionally with reactor physics, mechanical, structural, nuclear safety, and systems engineering teams Phase Continuity * Carry IC&E responsibility across all program phases ...
New
Director Instrumentation, Control, and Electrical - Reactor
Torrance, CA · On-site
$225 - $300/hr
Medical
PTO
Partner cross-functionally with reactor physics, mechanical, structural, nuclear safety, and systems engineering teams Phase Continuity * Carry IC&E responsibility across all program phases ...
New
Nuclear Engineer (Naval Reactors Engineer) - AL, GA
Valdosta, GA · On-site
$80K - $96K/yr
Reactor physics * Materials development * Component design such as steam generators, pumps and valves * Instrumentation and control of reactor, steam and electric plants * Testing and quality control
Nuclear Engineer (Naval Reactors Engineer) - AL, GA
Valdosta, GA · On-site
$80K - $96K/yr
Reactor physics * Materials development * Component design such as steam generators, pumps and valves * Instrumentation and control of reactor, steam and electric plants * Testing and quality control
Reactor Physics information
See salary details
$5.29 - $7.12
0% of jobs
$7.12 - $8.96
0% of jobs
$8.96 - $10.80
0% of jobs
$10.80 - $12.63
24% of jobs
$12.72 is the 25th percentile. Wages below this are outliers.
$12.63 - $14.47
16% of jobs
$14.47 - $16.30
0% of jobs
$16.30 - $18.14
0% of jobs
$18.14 - $19.97
0% of jobs
$19.97 - $21.81
0% of jobs
The median wage is $22.25 / hr.
$21.81 - $23.65
40% of jobs
$23.65 - $25.48
19% of jobs
$5
$20
$25
How much do reactor physics jobs pay per hour?
What is reactor physics?
What are the key skills and qualifications needed to thrive as a reactor physicist, and why are they important?
What are some common challenges faced by professionals working in reactor physics, and how can they be addressed?
What is the difference between Reactor Physics vs Nuclear Engineer?
| Aspect | Reactor Physics | Nuclear Engineer |
|---|---|---|
| Primary Focus | Neutron behavior, reactor core design, and physics calculations | Design, development, and safety of nuclear systems and reactors |
| Required Credentials | Advanced degrees in physics or nuclear engineering, certifications in reactor operation | Engineering degrees, professional engineering licenses, certifications in nuclear safety |
| Work Environment | Research labs, reactor facilities, academic settings | Power plants, research facilities, industry |
| Industry Usage | Specialized in reactor core physics and modeling | Broader nuclear system design and safety analysis |
Reactor Physics specialists focus on understanding neutron interactions and reactor core behavior, often working in research or academic settings. Nuclear Engineers have a broader role, encompassing system design, safety, and operational aspects of nuclear reactors. While both roles require advanced education and certifications, Reactor Physics is more specialized in core physics, whereas Nuclear Engineering covers a wider range of nuclear systems and safety protocols.
What cities are hiring for Reactor Physics jobs?
Cities with the most Reactor Physics job openings:
What are the most commonly searched types of Reactor Physics jobs?
The most popular types of Reactor Physics jobs are:
What states have the most Reactor Physics jobs?
States with the most job openings for Reactor Physics jobs include:
What job categories do people searching Reactor Physics jobs look for?
The top searched job categories for Reactor Physics jobs are:

High Performance Computing Modeling and Simulation Internships
Idaho Falls, ID • On-site
Internship
This job post has expired today. Applications are no longer accepted.
Job description
Idaho National Laboratory University/College Internships-High Performance Computing Computational Modeling and Simulation AND VISUALIZATION.
The Opportunity:
Internships at Idaho National Laboratory
Idaho National Laboratory (INL) hosts over 300 undergraduate and graduate students each year to support INL's mission. Opportunities for interns at INL range from nuclear engineering to cybersecurity and include non-scientific positions in various operations and business disciplines.
Join INL's team and find your exceptional educational experience in a real-world work environment. INL offers a unique opportunity to learn, collaborate, innovate and conduct research with top researchers and professionals.
The Deliverables:
Interns will spend the first week of their assignment working with their mentor to outline their work scope and to secure resources for a successful internship. For the next several weeks, the mentor will provide considerable program assistance and guidance to the intern. In addition to regular activities, interns are invited to attend weekly seminars, tours and community events designed with career development in mind. Completion of a final project is highly recommended and can be completed through a variety of mediums - a traditional poster, electronic presentation or video.
The Process:
Through this single application, you are considered for all internship projects related to INL High Performance Computing, Modeling and Simulation, and Visualization. Simply complete the application questions which will help us identify what knowledge and experience you already have that may be related to the preferred qualifications for each individual internship project. It is common for applicants to receive consideration for multiple projects at varying times throughout the process. Mentors will make direct contact with applicants who meet their project qualifications to share the specific details of the project. On average, INL plans for approximately 300 internships each year. Most internships provide flexibility with start and end dates to account for varying university term schedules. We encourage early applications to increase the number of opportunities available to you.
The Projects:
--Computational radiation transport, irradiation damage, fluid dynamics, corrosion, nuclear fuel performance, reactor physics, structural dynamics, and modern software design are preferred. The work involves building and/or running applications using the INL's MOOSE HPC development and runtime framework or running lower length scale (atomistic) simulations to obtain parameterizations for larger length scale applications. Applications include RELAP7 (reactor systems analysis), Rattlesnake (radiation transport), BISON (nuclear fuels performance), Marmot (microscale materials), MAMMOTH (reactor physics), Grizzly (structural mechanics), and Bighorn (two-phase conjugate heat transfer).
For the lower length scale work we use LAMMPS, SPPARKS, and VASP. Students wishing to develop software that are unfamiliar with C++ will be required to take a C++ programming class during their internship at INL. Students may also be involved in computational analysis of the Advanced Test Reactor (ATR) and TREAT, the Transient Reactor Test facility.
--Students interested in computational radiation transport, reactor physics and coupled multiphysics are desired. The work involves running applications using the INL's MOOSE HPC development and runtime framework. Applications include Rattlesnake (radiation transport), BISON (nuclear fuels performance), and MAMMOTH (reactor physics). Students may also be involved in computational analysis of the Advanced Test Reactor (ATR) and TREAT, the Transient Reactor Test facility. Students will publicly present and submit a formal report summarizing their intern efforts. The intern will perform work supporting Rattlesnake, the MOOSE based radiation transport application for multiphysics simulations at INL, by developing a 3D mesh for ATR and performing Rattlesnake and MAMMOTH simulations of the core. The student will become familiar with Python to automate the mesh building process.
--The student will develop finite element models to study the 3D behavior of hydrogen in nuclear fuel cladding. The student would support formal report and technical paper preparation.
--Development of the BISON Fuel Performance Code. The applicant should have a strong background in finite element analysis, C++ code and solid mechanics. While at INL the student will use the skills mentioned to assist in high impact modeling problems such as loss of coolant accidents and pellet cladding mechanical interaction.
--Develop a methods for coupling the deterministic core analysis code PHISICS with a Monte Carlo analysis code (SEPRENT). The work will also support research into hybrid neutron transport methods useful for high temperature reactor research.
--Support the Applied Visualization Laboratory. The candidate should be proficient in one of the following programming languages: C, C++, Java, C#, or Python. The student will learn advanced software engineering and visualization skills, as well as, data analytics for the use in scientific workflows.
Completion of classes in computer graphics, numerical analysis, and data structures is desired. The student will develop visualization and analytic tools for researchers and scientists at the laboratory. The student may also assist in the development of advanced storage, data science, and visualization techniques. The student would support formal report preparation.
- Have the ability to pass a background check
- Possess a minimum overall 3.0 Grade Point Average (GPA)
- Complete this application, which is used to place students based on their academic interests, coursework, knowledge and communication skills
- Enrolled full time student status at an accredited college or university (undergraduate, graduate, PhD).
- Current resume or Curriculum Vitae (CV)
- Unofficial Transcripts (include current and completed degree programs)
- Current class schedule and number of credits
- Work with your career center to develop a resume or CV that is functional (this is your opportunity for a first impression)
- Review the INL website and learn more about our business and research programs and how they could enrich your degree plan https://www.inl.gov/
- Ask your professors if they have collaborated on INL research programs and seek their permission to list them as a reference
- Review the INL Academic Partnerships web site for valuable information on our internship programs https://www.inl.gov/inl-initiatives/education/