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Nuclear Reactor Core Engineer Jobs (NOW HIRING)

Southern Company

Reactor Engineer - Vogtle 3&4

Waynesboro, GA · On-site

$77K - $93K/yr

Reactor Engineer - Vogtle 3&4 Southern Nuclear Operating Company's Plant Vogtle Engineering ... Operate and maintain core monitoring software. * Implement Special Nuclear Material control program.

X Energy LLC

Engineer I, Nuclear

Rockville, MD · On-site +1

$100K - $120K/yr

Reactor core design and analysis. * Radiation shielding design and analysis. * Nuclear fuel ... Other areas of nuclear engineering or nuclear physics relevant to the design and analysis of small ...

Southern Company

Reactor Engineer - Vogtle 3&4

Waynesboro, GA · On-site

$77K - $93K/yr

Reactor Engineer - Vogtle 3&4 Southern Nuclear Operating Company's Plant Vogtle Engineering ... Operate and maintain core monitoring software. * Implement Special Nuclear Material control program.

NC State University

Research Engineer

Raleigh, NC · On-site

Formulate and execute reactor core and system simulations using high-performance computing ( HPC ... Nuclear System Analysis: Perform nuclear system simulations, experimental facility design, and ...

Protingent

Senior Safety Analysis Engineer

Bellevue, WA · On-site

$46 - $77/hr

Knowledgeable of nuclear reactor core physics such as neutron transport theory and reactivity ... D. in nuclear engineering, or other relevant engineering degree, with a minimum of 5 years ...

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All JobsNuclear Reactor Core Engineer Jobs

Nuclear Reactor Core Engineer information

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$26K

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$150K

How much do nuclear reactor core engineer jobs pay per year?

As of Sep 10, 2026, the average yearly pay for nuclear reactor core engineer in the United States is $105,594.00, according to ZipRecruiter salary data. Most workers in this role earn between $98,500.00 and $118,000.00 per year, depending on experience, location, and employer.

What does a nuclear reactor core engineer do?

A Nuclear Reactor Core Engineer is responsible for designing, analyzing, and monitoring the core of a nuclear reactor, which contains the fuel and is the source of the reactor's power. They ensure the reactor operates safely and efficiently by managing reactor physics, core loading patterns, and fuel usage. These engineers also oversee core performance during operation, support refueling outages, and help develop safety procedures and protocols to prevent incidents. Their work is critical to maintaining the safe and efficient generation of nuclear energy.

What are some common challenges faced by nuclear reactor core engineers in maintaining reactor safety and efficiency?

Nuclear Reactor Core Engineers frequently encounter the challenge of balancing reactor safety with optimal performance. They must monitor and adjust core parameters, such as temperature and neutron flux, to ensure safe operations while maximizing efficiency. Unanticipated changes in fuel behavior, equipment degradation, and strict regulatory requirements can add complexity to daily tasks. Collaboration with operations, maintenance, and safety teams is essential for quickly addressing issues and implementing improvements. Staying current with evolving safety standards and technological advancements is also vital for success in this role.

What are the key skills and qualifications needed to thrive as a nuclear reactor core engineer, and why are they important?

To thrive as a Nuclear Reactor Core Engineer, you need a solid background in nuclear engineering, reactor physics, and thermodynamics, typically supported by a bachelor’s or master’s degree in nuclear or mechanical engineering. Familiarity with industry-standard simulation software (such as MCNP or CASMO), regulatory compliance systems, and relevant safety certifications (like Professional Engineer licensure) is essential. Strong problem-solving, analytical thinking, and communication skills set outstanding engineers apart, especially when collaborating on interdisciplinary teams. These competencies are crucial for ensuring reactor safety, regulatory compliance, and optimal core performance in a highly regulated and technically demanding environment.

What is the difference between Nuclear Reactor Core Engineer vs Nuclear Reactor Operator?

AspectNuclear Reactor Core EngineerNuclear Reactor Operator
CredentialsEngineering degree, certifications in nuclear safetyTraining programs, licensing exams
Work EnvironmentDesign, analyze, and optimize reactor cores in labs or officesOperate and monitor reactors in control rooms
Industry UsageDesign and safety analysis roles in nuclear plantsDay-to-day operation and safety management of reactors

The Nuclear Reactor Core Engineer focuses on designing, analyzing, and improving reactor cores, requiring engineering expertise and safety certifications. In contrast, the Nuclear Reactor Operator manages the real-time operation and safety of reactors, primarily working in control rooms. Both roles are essential in nuclear power plants but differ in responsibilities, work environment, and required credentials.

What are popular job titles related to Nuclear Reactor Core Engineer jobs?

For Nuclear Reactor Core Engineer jobs, the most frequently searched job titles are:

Infographic showing various Nuclear Reactor Core Engineer job openings in the United States as of September 2026, with employment types broken down into 1% As Needed, 82% Full Time, 15% Part Time, and 2% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $105,594 per year, or $50.8 per hour.

Nuclear Safety Analysis Engineer

Bellevue, WA • On-site

System One Holdings, LLC
Business Consulting Services • 5 - 10K employees
Learn more about System One Holdings, LLCexternal

$46 - $77/hr

Full-time

Medical, Dental, Vision, Life, Retirement

Posted 7 days ago

Job description

Job Title: Senior Safety Analysis Engineer
Location: Bellevue, WA
Type: Contract
Compensation: $46.00 - $77.00 per hour
Work Model: Remote - offsite
Hours: 40.0 hours per week
Responsibilities:
  • Develop and update the nuclear power plant commissioning test and/or start-up test abstract and specification
  • Utilize safety analysis results to support SSCs performance and operation procedure development
  • Develop system models and perform safety analysis of Anticipated Operational Occurrence (AOO), Design Basis Event (DBE), and Design Basis Accident (DBA) for the Natrium Demonstration reactor
  • Collaborate with cross-functional teams to establish core and reactor SSC functional, performance, safety, and quality requirements as well as support the overall design
  • Collaborate with cross-functional teams to integrate NEI 18-04 Licensing Basis Event (LBE) analyses and findings into licensing documentation and project design activities
  • Develop and maintain documentation of model development and analysis results
  • Perform engineering reviews of other engineering analysis and design deliverables, such as ASME design transients
  • Assess plant transient benchmark tests, identify applicable tests relevant to the advanced reactor, and perform benchmark calculations
  • Contribute to the company software framework implementation of capabilities required for transient and accident analysis

Requirements
  • Experience in nuclear power plant commissioning and/or start-up test abstract and specification
  • Knowledge in nuclear power plant operation and system performance
  • Extensive experience in nuclear safety analysis and reactor system modeling
  • Significant experience with safety analysis software such as RELAP5, TRACE, TRAC, GOTHIC, or other nuclear system analysis tools
  • Knowledge in transient and accident analysis for submittals to NRC, such as Chapter 15 in the FSAR, is highly desired
  • Familiarity with nuclear systems thermal-hydraulic fundamentals and reactor dynamics
  • Knowledge of nuclear reactor core physics, neutron transport theory, and reactivity feedback
  • Knowledge of nuclear reactor instrumentation and control systems and modeling approaches in safety analysis codes
  • Familiarity with nuclear design, regulatory requirements, and risk-informed performance-based technology guidance for Non-Light Water Reactors, including EMDAP and Regulatory Guide 1.203, is preferred
  • Experience with SFR safety analysis or methods is highly desirable
  • Demonstrated strong quantitative, analytical, modeling and reporting skills
  • Understanding of NQA-1 requirements and experience working under a quality assurance program
  • Strong software engineering skills in Python, Fortran, or C++ are a plus
  • B.S., M.S., or Ph.D. in nuclear engineering or relevant engineering discipline with a minimum of 5 years of experience in the nuclear field
  • Must possess high trust and integrity, strong communication skills, and the ability to foster teamwork

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.
System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.
Ref: #161-Managed Staffing Charlotte
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About System One

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System One helps employers get work done more efficiently and economically without compromising quality. Over our 35+ year history, we've helped connect thousands of talented people with innovative companies. The excitement of a perfect fit motivates us every single day.

Industry

Business consulting services and recruiting and staffing services

Company size

5,001 - 10,000 Employees

Headquarters location

Pittsburgh, PA, US

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