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Internship Nuclear Engineer Jobs in California (NOW HIRING)

Nuclear Engineer I/II

Los Angeles, CA ยท On-site

$120 - $165/hr

About the Role As a member of the nuclear engineering team, you will become the responsible ... Coursework or internships involving Multiphysics modeling * Interest or experience in microreactors ...

Nuclear Engineer I/II

Los Angeles, CA ยท On-site

$120 - $165/hr

About the Role As a member of the nuclear engineering team, you will become the responsible ... Coursework or internships involving Multiphysics modeling * Interest or experience in microreactors ...

Nuclear Engineer I/II

Los Angeles, CA ยท On-site

$120K - $160K/yr

About the Role As a member of the nuclear engineering team, you will become the responsible ... Coursework or internships involving Multiphysics modeling * Interest or experience in microreactors ...

Nuclear Engineer I/II

Los Angeles, CA ยท On-site

$106K - $127K/yr

About the Role As a member of the nuclear engineering team, you will become the responsible ... Coursework or internships involving Multiphysics modeling * Interest or experience in microreactors ...

Mechanical Engineer

Los Angeles, CA ยท On-site

$80K - $170K/yr

Our mission is to make nuclear not only the cleanest and safest source of baseload power, but also ... internship, and/or professional experience. * Proficient in a 3D CAD package (such as Solidworks ...

Mechanical Engineer

Los Angeles, CA ยท On-site

$80K - $170K/yr

Our mission is to make nuclear not only the cleanest and safest source of baseload power, but also ... internship, and/or professional experience. * Proficient in a 3D CAD package (such as Solidworks ...

Mechanical Engineer

Los Angeles, CA ยท On-site

$80K - $170K/yr

Our mission is to make nuclear not only the cleanest and safest source of baseload power, but also ... internship, and/or professional experience. * Proficient in a 3D CAD package (such as Solidworks ...

Our mission is to make nuclear not only the cleanest and safest source of baseload power, but also ... internship, and/or professional experience. * 1+ year of experience in structural dynamic analysis ...

Dynamics Engineer

Los Angeles, CA ยท On-site

$125K - $200K/yr

Our mission is to make nuclear not only the cleanest and safest source of baseload power, but also ... internship, and/or professional experience. * 1+ year of experience in structural dynamic analysis ...

Dynamics Engineer

Los Angeles, CA ยท On-site

$125K - $200K/yr

Our mission is to make nuclear not only the cleanest and safest source of baseload power, but also ... internship, and/or professional experience. * 1+ year of experience in structural dynamic analysis ...

SkillBridge Internship - Field Technician

Cypress, CA ยท On-site

$21 - $28.50/hr

You will gain hands-on experience during your internship and will have the opportunity to join ... Nuclear Engineering/Power/Energy & Nuclear Plant Operator * Satellite/Radar Systems * Comm Techs

Senior Engineer, Reactor Vessel

Alameda, CA ยท On-site

$118K - $162K/yr

... interns while promoting engineering rigor and best practices. * Other duties as assigned. Qualifications * Bachelor's or advanced degree in Mechanical Engineering, Nuclear Engineering, Materials ...

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Internship Nuclear Engineer information

What does an internship nuclear engineer do?

An internship nuclear engineer assists experienced engineers in the design, operation, and maintenance of nuclear power systems and related technologies. Typical responsibilities include supporting research projects, analyzing data, performing safety checks, and helping with documentation and regulatory compliance. Interns gain hands-on experience with nuclear equipment, learn about industry standards, and develop skills in problem-solving and teamwork. This role is an excellent opportunity for students to apply classroom knowledge to real-world engineering challenges and prepare for a future career in the nuclear energy sector.

What are the key skills and qualifications needed to thrive as an internship nuclear engineer?

To thrive as an Internship Nuclear Engineer, you need a strong foundation in nuclear engineering principles, physics, and mathematics, usually gained through ongoing or completed coursework in a relevant engineering program. Familiarity with simulation software such as MATLAB, AutoCAD, and nuclear-specific codes, as well as safety regulations, is typically expected. Strong analytical thinking, attention to detail, and effective teamwork and communication skills help interns stand out in this role. These skills are vital for ensuring safety, contributing to complex projects, and successfully collaborating with experienced engineers in regulated environments.

What types of projects or tasks can an internship nuclear engineer expect to work on during their placement?

As an internship nuclear engineer, you can expect to be involved in a variety of tasks such as assisting with safety analyses, supporting reactor operations, conducting research on nuclear materials, or helping with maintenance planning. Interns often collaborate with experienced engineers, technicians, and regulatory staff, gaining exposure to both technical and compliance aspects of the industry. This hands-on experience not only builds your technical skills but also provides valuable insight into the teamwork and communication required in a regulated, safety-focused environment.

What is the difference between Internship Nuclear Engineer vs Nuclear Engineer?

AspectInternship Nuclear EngineerNuclear Engineer
Required CredentialsTypically pursuing or recently completed a degree in nuclear engineering or related fieldBachelor's or master's degree in nuclear engineering or related field; professional licensure may be preferred
Work EnvironmentInternship sites, research facilities, or nuclear power plants under supervisionFull-time roles in nuclear power plants, research labs, or engineering firms
Employer & Industry UsageInternship programs offered by nuclear companies, government agencies, or universitiesEstablished nuclear power companies, government agencies, or consulting firms

The main difference between an Internship Nuclear Engineer and a Nuclear Engineer is experience level and responsibility. Internships are entry-level positions designed for students or recent graduates to gain practical experience, while Nuclear Engineers hold full-time roles with greater responsibilities in designing, operating, and maintaining nuclear systems.

What are the most commonly searched types of Nuclear Engineer jobs in California?

The most popular types of Nuclear Engineer jobs in California are:

What are popular job titles related to Internship Nuclear Engineer jobs in California?

For Internship Nuclear Engineer jobs in California, the most frequently searched job titles are:

What job categories do people searching Internship Nuclear Engineer jobs in California look for?

The top searched job categories for Internship Nuclear Engineer jobs in California are:

What cities in California are hiring for Internship Nuclear Engineer jobs?

Cities in California with the most Internship Nuclear Engineer job openings:

Infographic showing various Internship Nuclear Engineer job openings in California as of August 2026, with employment types broken down into 95% Full Time, 2% Part Time, and 3% Contract. Highlights an 85% Physical, 6% Hybrid, and 9% Remote job distribution.

Nuclear Engineer I/II

Antaresindustries

Los Angeles, CA โ€ข On-site

$120 - $165/hr

Other

Posted 13 days ago


Job description

About the Role

As a member of the nuclear engineering team, you will become the responsible engineer for a key component of the Antares reactor design such as reactivity controls and instrumentation, radiation shielding, fuels, materials, thermal hydraulics, safety, or licensing. The ideal candidate has a mix of industry and academic experience, and has worked in a team-oriented environment to mature nuclear concepts. While you may have a specialty, youโ€™re not afraid to operate as a generalist in a growing organization.

Roles and Responsibilities
  • Assist with neutronics modeling and simulations using MCNP, Serpent, or SCALE
  • Support Multiphysics analyses (thermal-hydraulics, heat transfer, structural mechanics)
  • Participate in experimental validation of simulation results
  • Collaborate with senior engineers on iterative design tasks
  • Contribute to documentation and regulatory reporting
  • Participate in hardware demonstrations and prototype testing
Basic Qualifications
  • Bachelor's degree in Nuclear Engineering or related technical field
  • Familiarity with neutron transport software (MCNP, Serpent, SCALE)
Preferred Skills & Experience
  • Familiarity with Python or similar programming language
  • Coursework or internships involving Multiphysics modeling
  • Interest or experience in microreactors, heat pipe cooled reactors, or other advanced reactors
  • Exposure to fast-paced project environments
  • Proven ability to quickly learn new technical concepts
  • Strong communication skills
Pay Ranges

Nuclear Engineer I: 120k-135k

Nuclear Engineer II: 135k-165k

Your actual level and base salary will be determined on a caseโ€‘byโ€‘case basis and may vary based on the following considerations: jobโ€‘related knowledge and skills, education, and experience.

Equal Opportunity

Antares is an Equal Opportunity Employer. Employment decisions are based solely on merit, competence, and qualifications, without regard to race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status.

ITAR Requirements

To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. ยง 1157, or (iv) Asylee under 8 U.S.C. ยง 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.

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