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Reactor Jobs in Missouri (NOW HIRING)

Perform calculations and analyses with fast reactor deterministic codes such as DIF3D, PERSENT. * Support the qualification and verification of neutronic analyses, including validation against ...

Engineer IV

Columbia, MO · On-site

$110K - $130K/yr

Hiring Department University of Missouri Research Reactor The University of Missouri Research Reactor (MURR) is seeking an experienced Engineer IV to provide technical leadership for critical ...

Nuclear Engineer

Owensville, MO

$79K - $95K/yr

Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design, reactor physics, materials development, component design for steam generators, pumps, and valves ...

Nuclear Engineer

Cleveland, MO

$90K - $107K/yr

Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design, reactor physics, materials development, component design for steam generators, pumps, and valves ...

Nuclear Engineer

Lebanon, MO

$85K - $102K/yr

Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design, reactor physics, materials development, component design for steam generators, pumps, and valves ...

Nuclear Engineer

Jasper, MO

$87K - $104K/yr

Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design, reactor physics, materials development, component design for steam generators, pumps, and valves ...

Nuclear Engineer

Liberty, MO

$92K - $111K/yr

Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design, reactor physics, materials development, component design for steam generators, pumps, and valves ...

Nuclear Engineer

Stockton, MO

$89K - $107K/yr

Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design, reactor physics, materials development, component design for steam generators, pumps, and valves ...

Nuclear Engineer

Leadington, MO

$90K - $108K/yr

Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design, reactor physics, materials development, component design for steam generators, pumps, and valves ...

Nuclear Engineer

Ladue, MO

$92K - $110K/yr

Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design, reactor physics, materials development, component design for steam generators, pumps, and valves ...

Nuclear Engineer

Lawson, MO

$87K - $105K/yr

Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design, reactor physics, materials development, component design for steam generators, pumps, and valves ...

Nuclear Engineer

Mount Vernon, MO

$77K - $92K/yr

Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design, reactor physics, materials development, component design for steam generators, pumps, and valves ...

Nuclear Engineer

Buffalo, MO

$89K - $107K/yr

Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design, reactor physics, materials development, component design for steam generators, pumps, and valves ...

Nuclear Engineer

Jackson, MO

$86K - $103K/yr

Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design, reactor physics, materials development, component design for steam generators, pumps, and valves ...

Nuclear Engineer

Greenfield, MO

$90K - $108K/yr

Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design, reactor physics, materials development, component design for steam generators, pumps, and valves ...

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Showing results 1-20

Reactor information

What is a reactor?

In the context of jobs, a 'Reactor' typically refers to a professional who operates and monitors nuclear reactors in power plants or research facilities. Their responsibilities include controlling reactor systems, ensuring safety protocols are followed, and responding to any operational anomalies. Reactor operators must be highly trained and licensed, as their work involves managing nuclear materials and protecting both people and the environment. They work closely with engineers and other technical staff to maintain efficient and safe reactor operations.

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

To thrive as a Nuclear Reactor Operator, you need a strong understanding of nuclear physics, engineering principles, and operational protocols, typically requiring a high school diploma or associate degree and completion of specialized training programs. Familiarity with reactor control systems, safety monitoring equipment, and a Nuclear Regulatory Commission (NRC) operator license are essential technical qualifications. Attention to detail, strong problem-solving abilities, and effective communication skills are crucial soft skills for this role. These skills and qualifications are vital to ensuring the safe, efficient, and regulatory-compliant operation of nuclear reactors.

What are some common challenges faced by reactor operators during daily operations?

Reactor operators frequently encounter challenges such as maintaining strict adherence to safety protocols while managing complex control systems. They must be vigilant to detect and respond quickly to abnormal readings or alarms, which requires strong attention to detail and the ability to stay calm under pressure. Additionally, operators often work in shifts and within tightly regulated environments, which can be physically and mentally demanding. Teamwork and clear communication with engineers and other operators are crucial to ensure safe and efficient reactor performance.

What is the difference between Reactor vs Technician?

AspectReactorTechnician
Required CredentialsTypically requires a degree in engineering or nuclear technology, along with specialized reactor operation certificationsUsually needs technical diploma or associate degree, with specific technical certifications
Work EnvironmentOperates in nuclear power plants or research reactors, following strict safety protocolsWorks in maintenance, troubleshooting, and support roles within industrial or nuclear facilities
Employer & Industry UsageCommonly employed by nuclear power plants, research institutions, and energy companiesEmployed across various industries including energy, manufacturing, and maintenance services

The main difference between a Reactor and a Technician lies in their roles and responsibilities. Reactors are specialized operators managing nuclear systems, requiring advanced certifications and working in high-security environments. Technicians support these operations through maintenance and technical support, often with less advanced credentials. Both roles are essential in the nuclear industry, but they differ in scope, training, and daily tasks.

How much do reactor operators get paid?

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 adherence to strict safety protocols, with some positions offering additional shift differentials or overtime pay.

How to get a job at a nuclear reactor?

To work as a reactor operator or technician, candidates typically need a high school diploma or equivalent, followed by specialized training and certification from a recognized authority such as the Nuclear Regulatory Commission. Relevant skills include understanding nuclear physics, safety procedures, and operating control systems, often gained through an accredited training program or technical college. Prior experience in industrial or technical environments can also be beneficial.

What are popular job titles related to Reactor jobs in Missouri?

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

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

The top searched job categories for Reactor jobs in Missouri are:

Infographic showing various Reactor job openings in Missouri as of August 2026, with employment types broken down into 93% Full Time, 5% Part Time, and 2% Contract. Highlights an 94% Physical, 3% Hybrid, and 3% Remote job distribution.

$105K - $162K/yr

Full-time

Medical, Retirement, PTO

Re-posted 21 days ago


Key responsibilities

  • Supervise and direct the operation of the nuclear power generating unit to ensure safe, legal, and efficient plant operation.

  • Manage and oversee a team of approximately 10 employees, including Reactor Operators and Operations Technicians, and direct their activities in the control room and field.

  • Participate in training, support performance improvement initiatives, and assume Emergency Response Organization duties as required.


Job description

About the Callaway Energy Center

The Callaway Energy Center is a nuclear facility located in mid-Missouri. The Energy Center has more than 800 employees and contractors working at the facility, and it has established a strong record of safe operation throughout its 30-year operating history. The Energy Center is a highly efficient, low-cost, sustainable source of electricity for Ameren Missouri's 1.2 million customers.

Our benefits include:

  • Medical coverage on date of hire

  • 100% employer paid cash balance pension plan

  • 401(k) with company match fully vested on date of hire

  • Minimum of 15 days paid vacation and 12 paid holidays

  • Paid parentalleave and family caregiver leave

Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees.

About The Position

TheOperating Supervisor supervises the operation of Callaway Energy Center to ensure the safe,legaland efficient operation of the nuclear power generating unit.

Key responsibilities include:

  • Manage and direct a team of approximately 10 employees.

  • Direct Reactor Operators in the control room performing procedures to maneuver and operate the plant.

  • Supervise Operations Technicians in the field performing local system operations and testing.

  • Administer the Workman's Protection Assurance Program.

  • Train and develop crew members.

  • Interface with all nuclear departments, internal company personnel, and external personnel as required to support work on plant equipment and systems.

  • Maintain and promote positive behaviors in the areas of commitment to excellence, teamwork, respect, integrity, accountability, and stewardship.

  • Support performance improvement initiatives such as assessments, benchmarks, and the corrective action program.

  • Actively participate in training to develop and broaden the skills of the Callaway Energy Center workforce.

  • May be assigned to rotational positions in work control or as a training instructor.

  • AssumeEmergency Response Organization (ERO)duties in accordance with Callaway Energy Center Radiological Emergency Response Plan (RERP) including responding to assigned ERO facilities within the required RERP response time.

Qualifications

High School Diploma or equivalentisrequired.Must meet one of the following requirements:

1)Currently a Licensed Reactor Operator or Licensed Senior Reactor Operator with one or more years of experience in the position;

2) Previously a Licensed Reactor Operator or Licensed Senior Reactor Operator at a commercial reactor with at least 1.5 years of experience in the position;

3) Qualified Reactor Operator (RO), Engineering Watch Supervisor (EWS), Propulsion Plant Watch Supervisor (PPWS), or Engineering Officer of the Watch (EOOW) on a military reactor for a minimum of 2 years;

4) Bachelor'sdegree with a minimum of 1.5 years of nuclear power plant experience;

5) Previously Certified Senior Reactor Operator at another site or currently Certified Senior Reactor Operator at Callaway with at least 2 years of experience in the position.

In addition to the above qualifications, the successful candidate will demonstrate:

Good leadership, decision-making,communicationand human relations skills are required. After preliminary review, selected applicants must take the First Line Supervisor Test and obtain a recommended statusin order tobe eligible for additional selection procedures (e.g., interview) designated for this position. Qualified candidates are required to establish and maintain their permanent residence within sixty highway miles of the Callaway Energy Center. Security screening required for Callaway Energy Center access.

Working Conditions

The Operating Supervisor works a rotating shift in an office/plant environment. Additional hours and/or callouts may be required during refueling outages and emergent plant activities as the needs arise.

Additional Information

Ameren's selection process includes a seriesofinterviews and may includea leadership assessment process.Specific details will be provided to qualified candidates.

Compensation Range:

$105,100.00 - $162,900.00

At Ameren, base salary is one component of a competitive compensation package for employees. Our pay ranges are broad to allow for movement within our organization and to accommodate different skill sets and levels of expertise. We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the base salary offered. Roles are eligible for additional rewards including annual incentive payments based on individual and company performance.

If end date is listed, the posting will come down at 12:00 am on that date:

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.