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Reactor Operator Jobs in California (NOW HIRING)

Radiant

Nuclear Engineer, Core Physics

El Segundo, CA · On-site

$106K - $146K/yr

Direct experience as a reactor operator of an existing nuclear reactor. * Hands-on experience in developing technical procedures, human factors engineering, or operational interface design.

Antares

Reactor Software Engineer I-II

Los Angeles, CA · On-site

$120K - $160K/yr

This software sits between reactor controls, instrumentation, operator tools, simulations, and external data systems, collecting live signals, streaming telemetry, executing commands, and helping the ...

Antares

Tooling Design Engineer II-Senior

Los Angeles, CA · On-site

$112K - $185K/yr

... operator feedback and observed performance into rapid design improvements. * Develop ground support equipment and handling solutions for large, heavy, sensitive, or high-value reactor hardware ...

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Reactor Operator information

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How much do reactor operator jobs pay per hour?

As of Sep 15, 2026, the average hourly pay for reactor operator in California is $21.77, according to ZipRecruiter salary data. Most workers in this role earn between $18.03 and $22.55 per hour, depending on experience, location, and employer.

What is a reactor operator?

Reactor operators are highly trained professionals responsible for controlling and monitoring nuclear reactors in power plants or research facilities. They ensure the reactor operates safely and efficiently by adjusting controls, monitoring instruments, and following strict safety protocols. Reactor operators respond to abnormal conditions, conduct routine inspections, and are prepared to initiate emergency shutdowns if necessary. Their work is critical for maintaining safe and reliable nuclear energy production.

What are the key skills and qualifications needed to thrive as a reactor operator?

To thrive as a Reactor Operator, you need a strong understanding of nuclear physics, safety protocols, and operational procedures, often supported by a technical degree and a Nuclear Regulatory Commission (NRC) license. Familiarity with control room instrumentation, simulation software, and radiation monitoring systems is essential. Attention to detail, calmness under pressure, and strong communication skills help operators effectively manage complex situations and coordinate with team members. These skills and qualities are critical for ensuring the safe, efficient, and reliable operation of nuclear reactors.

What are some common challenges reactor operators face during shift work, and how can these be managed?

Reactor Operators often work rotating shifts, which can disrupt sleep patterns and affect work-life balance. Managing fatigue, maintaining focus during long periods of monitoring, and staying vigilant during routine and emergency scenarios are key challenges. Operators can address these by following strict handover procedures, practicing effective stress management, and adhering to regulated rest periods. Teamwork and clear communication with supervisors and other operators are also essential to ensure safe and efficient plant operations.

What is the difference between Reactor Operator vs Nuclear Plant Technician?

AspectReactor OperatorNuclear Plant Technician
CredentialsReactor Operator license, technical trainingTechnical certifications, plant-specific training
Work EnvironmentControl room, reactor areaEquipment maintenance, monitoring systems
Job FocusOperating reactor systems, safety protocolsMaintaining equipment, troubleshooting
Industry UsagePower plants, nuclear facilitiesPower plants, nuclear facilities

Reactor Operators primarily focus on controlling and monitoring nuclear reactors, ensuring safety and operational efficiency. Nuclear Plant Technicians support reactor operations through maintenance and troubleshooting. Both roles are essential in nuclear power plants, but Reactor Operators have more responsibility for direct reactor control and safety procedures.

How do you become a reactor operator?

To become a reactor operator, candidates typically need a high school diploma or equivalent, followed by specialized training and on-the-job experience in nuclear power plants. Many states require passing licensing exams from the Nuclear Regulatory Commission (NRC) and obtaining a reactor operator license, which involves meeting experience requirements and demonstrating knowledge of nuclear plant operations.

How much money do reactor operators make?

Reactor operators typically earn a median annual salary of around $80,000 to $100,000, depending on experience, location, and the specific facility. They often require specialized training, certifications, and work in shifts within nuclear power plants or research reactors.

What are the most commonly searched types of Reactor Operator jobs in California?

The most popular types of Reactor Operator jobs in California are:

What are popular job titles related to Reactor Operator jobs in California?

For Reactor Operator jobs in California, the most frequently searched job titles are:

What job categories do people searching Reactor Operator jobs in California look for?

The top searched job categories for Reactor Operator jobs in California are:

What cities in California are hiring for Reactor Operator jobs?

Cities in California with the most Reactor Operator job openings:

What are popular job titles related to Reactor Operator jobs in CA?

For Reactor Operator jobs in CA, the most frequently searched job titles are:

Reactor Operator jobs near you
Infographic showing various Reactor Operator job openings in California as of September 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $45,279 per year, or $21.8 per hour.

Nuclear Engineer, Core Physics

El Segundo, CA • On-site

Cantos Ventures
See more jobs at Cantos Venturesexternal

$106K - $146K/yr

Other

Medical, Dental, Vision, Life, PTO

Re-posted 10 days ago

Key responsibilities

  • Collect testing requirements, objectives, and success criteria from nuclear engineers.

  • Develop procedures that satisfy test requirements within operational bounds and perform reactor physics calculations to verify testing sequences.

  • Document testing procedures and support operator training and control room GUI development.

Job description

Location

El Segundo HQ

Employment Type

Full time

Location Type

On-site

Department

Engineering Nuclear Engineering

Compensation
  • $106,500 – $146,475 • Offers Equity
Reactor Operations Engineer, Nuclear

Radiant is a seeking a nuclear engineer responsible for designing and implementing nuclear-specific testing operations at our 2026 demonstration. You will be responsible for the design of a large portion of the test campaign, which includes providing analysis to verify that the proposed testing is both safe and meets the test’s objectives. This position will work closely with nuclear engineers to establish test success criteria and systems / operations engineers to implement written procedures.

Responsibilities and Duties
  • Collect testing requirements, objectives, and success criteria from nuclear engineers.
  • Develop procedures that satisfy test requirements within the operational bounds of Kaleidos.
  • Perform various reactor physics calculations (neutronic and transient analyses) to verify proposed testing sequence addresses all requirements.
  • Document testing procedures and support operator training and control room GUI development.
Required Skills and Qualifications
  • Bachelor’s degree in nuclear engineering or equivalent degree from an accredited institution.
  • 2+ years of experience with reactor operations.
  • Experience with radiation transport methods, including with codes such as MCNP/OpenMC/Serpent.
  • Knowledge of thermal hydraulic fundamentals.
Desired Skills and Qualifications
  • 4+ years of experience with reactor operations.
  • Direct experience as a reactor operator of an existing nuclear reactor.
  • Hands‑on experience in developing technical procedures, human factors engineering, or operational interface design.
Additional Requirements
  • Must be willing to work extended hours and weekends as necessary to accomplish our mission.
  • Must work 100% onsite at El Segundo HQ.
Benefits and Perks
  • Stock: Substantial incentive stock plan for all full‑time employees.
  • Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.
  • One Medical: Sponsored memberships for employees and their dependents.
  • Vision: 100% top tier plan coverage + 50% for dependents.
  • Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.
  • Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits.
  • 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees.
  • Daily catered lunch. Free snacks and drinks.
  • Flexible PTO policy. Remote workday allocation.
  • Company and team-bonding events, happy hours and in-person camaraderie.
  • Beautiful El Segundo headquarters close to the Pacific Ocean.

Total Compensation and Benefits Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant.

We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.

Unfortunately, we are unable to provide visa sponsorship at this time.

This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls.

Compensation Range: $106,500 - $146,475

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