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Entry Level Nuclear Criticality Safety Engineer Jobs

Cantos Ventures

Nuclear Engineer

El Segundo, CA · On-site

$106.50 - $146.48/hr

This may include nuclear engineering areas such as radiation shielding, criticality safety, accident dose consequence, reactor physics modeling and design, transient analysis, and radiation detection.

Radiant Industries, Inc.

Nuclear Engineer

El Segundo, CA · On-site

$120 - $190/hr

This may include nuclear engineering areas such as radiation shielding, criticality safety, accident dose consequence, reactor physics modeling and design, transient analysis, and radiation detection.

Radiant Industries

Nuclear Engineer

El Segundo, CA · On-site

$106K - $146K/yr

This may include nuclear engineering areas such as radiation shielding, criticality safety, accident dose consequence, reactor physics modeling and design, transient analysis, and radiation detection.

Radiant

Nuclear Engineer

El Segundo, CA · On-site

$106K - $146K/yr

This may include nuclear engineering areas such as radiation shielding, criticality safety, accident dose consequence, reactor physics modeling and design, transient analysis, and radiation detection.

BWXT

Licensing & Safety Analysis Engineer

Lynchburg, VA · On-site

$85K - $177K/yr

Does Nuclear Safety oversight of first-of-a-kind fuel manufacturing and reactor assembly of ... Lynchburg, VA Your Day to Day as a Licensing & Safety Analysis Engineer: * Administration of the ...

BWXT

Licensing & Safety Analysis Engineer

Lynchburg, VA · On-site

$85K - $177K/yr

Does Nuclear Safety oversight of first-of-a-kind fuel manufacturing and reactor assembly of ... Lynchburg, VA Your Day to Day as a Licensing & Safety Analysis Engineer: * Administration of the ...

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All JobsEnergy and Environment JobsUtility JobsNuclear Engineer JobsEntry Level Nuclear Criticality Safety Engineer Jobs

Entry Level Nuclear Criticality Safety Engineer information

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$106.5K

$154.5K

$186K

How much do entry level nuclear criticality safety engineer jobs pay per year?

As of Sep 6, 2026, the average yearly pay for entry level nuclear criticality safety engineer in the United States is $154,474.00, according to ZipRecruiter salary data. Most workers in this role earn between $146,000.00 and $161,000.00 per year, depending on experience, location, and employer.

What does an entry level nuclear criticality safety engineer do?

An Entry Level Nuclear Criticality Safety Engineer assists in evaluating and controlling nuclear processes to prevent accidental criticality events, which can release dangerous levels of radiation. They help develop procedures, perform safety analyses, and review facility operations to ensure compliance with nuclear safety regulations. Typically, they work under the supervision of experienced engineers while gaining hands-on experience with nuclear materials and safety systems. Their role is essential for maintaining the safety of nuclear facilities and protecting workers and the environment.

What are the key skills and qualifications needed to thrive as an entry level nuclear criticality safety engineer?

To thrive as an Entry Level Nuclear Criticality Safety Engineer, a solid background in nuclear engineering, physics, or a related field—often with a relevant bachelor's degree—is essential. Familiarity with nuclear safety codes, Monte Carlo simulation software (like MCNP), and regulatory standards is commonly required. Strong analytical thinking, attention to detail, and effective communication help individuals excel in collaborative and safety-focused environments. These skills and qualifications are vital to ensure accurate risk assessments, regulatory compliance, and the prevention of criticality accidents in nuclear facilities.

What typical challenges might an entry level nuclear criticality safety engineer face in their first year on the job?

As an entry level Nuclear Criticality Safety Engineer, you may encounter challenges such as adapting to complex regulatory requirements, mastering technical safety analysis software, and understanding the intricacies of nuclear facility operations. You’ll also need to develop effective communication skills to collaborate with multidisciplinary teams and clearly present safety recommendations. Learning how to balance thorough risk assessment with practical operational constraints is a key part of the role’s early learning curve.

What is the difference between Entry Level Nuclear Criticality Safety Engineer vs Entry Level Nuclear Safety Analyst?

AspectEntry Level Nuclear Criticality Safety EngineerEntry Level Nuclear Safety Analyst
CredentialsBachelor's in nuclear engineering or related field; certifications like NEA or NQA preferredBachelor's in nuclear, mechanical, or safety engineering; certifications vary
Work EnvironmentDesign review, safety analysis, compliance in nuclear facilitiesSafety assessments, incident analysis, regulatory reporting in nuclear plants
Employer & Industry UsageNuclear power plants, research reactors, DOE facilitiesNuclear power plants, regulatory agencies, consulting firms

While both roles focus on nuclear safety, the Entry Level Nuclear Criticality Safety Engineer specializes in preventing nuclear chain reactions, whereas the Entry Level Nuclear Safety Analyst concentrates on overall safety assessments and compliance. Both positions require similar educational backgrounds and often work within the same industry environments, but their specific responsibilities differ based on safety focus areas.

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Entry Level Nuclear Criticality Safety Engineer jobs near you
Infographic showing various Entry Level Nuclear Criticality Safety Engineer job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 79% Full Time, 18% Part Time, 1% Contract, and 1% Nights. Highlights an 99% Physical, and 1% Remote job distribution, with an average salary of $154,474 per year, or $74.3 per hour.

Senior Nuclear Safety Anaylsis Engineer

Westinghouse Electric Company, LLC

Burr Ridge, IL • On-site

$85K - $106K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 25 days ago

Job description

Are you interested in being part of an innovative team that supports Westinghouse's mission to provide clean energy solutions? At Westinghouse, we recognize that our employees are our most valuable asset and we seek to identify, attract and recruit the most qualified talent while recognizing and encouraging the value of diversity in the global workplace.
About the role:
As a Senior Nuclear Engineer - Safety Analysis with Westinghouse Fauske & Associates, Inc. (FAI), you will support calculations and support validation experiments to maintain nuclear safety performance engineering calculations and assessments for nuclear power plants, waste treatment and severe accident modeling. Severe accident modeling will include thermal-hydraulics modeling and analysis, heat and mass transfer radiological source term.
You will report to the Manager of Experimental & Accident Modeling / Safety Analysis, Risk Applications, and Licensing. You will work hybrid 2 days per week on-site at our office in Bur Ridge, IL .
Location Flexibility
While this role is based in Bur Ridge, we recognize that exceptional talent can come from anywhere. For highly qualified candidates, we are open to considering either remote work arrangements or relocation support, depending on individual circumstances and business needs.
Key Responsibilities:
  • Perform calculations and support validation experiments to maintain nuclear safety performance engineering calculations and assessments for nuclear power plants, waste treatment and severe accident modeling. Severe accident modeling will include thermal-hydraulics modeling and analysis, heat and mass transfer radiological source term.
  • Support thermal hydraulic analysis for system performance, water hammer, and other thermal hydraulic phenomena.
  • Support software development and implement mathematical models into a C++ codebase, Fortran, and Python
  • Prepare documentation for evaluations
  • Verify first of a kind evaluations

Qualifications:
  • BS Engineering (Nuclear, Chemical or Mechanical)
  • Minimum 6 plus years of applicable experience
  • Mathematical and modeling such as:
    • Thermodynamics
    • Transport phenomena (momentum, heat, and mass)
    • Kinetics
    • Multi-phase flow modeling
  • Beneficial:
    • Modular Accident Analysis Program (MAAP)
    • RELAP
    • PRA (Probabilistic Risk Assessments)
    • C++, Fortran, Visual Basic, MathCAD or Python
    • Source Control

We are committed to transparency and equity in all of our people practices. The base salary range for this position, which is dependent upon experience, qualifications and skills, is estimated to be $85,200 to $106,500 per year.
#LI-Hybrid
Why Westinghouse?
Our benefits package is tailored to meet the diverse needs of our employees, while also promoting wellness and career growth. The following are representative of what we offer:
  • Comprehensive Medical benefits which could include medical, dental, vision, prescription coverage and Health Savings Account (HSA) with employer contributions options
  • Wellness Programs designed to support employees in maintaining their health and well-being including Employee Assistance Program providing support for our employees and their household members
  • 401(k) with Company Match Contributions to support employees' retirement
  • Paid Vacations and Company Holidays
  • Opportunities for Flexible Work Arrangements to promote work-life balance
  • Educational Reimbursement and Comprehensive Career Programs to help employees grow in their careers
  • Global Recognition and Service Programs to celebrate employee accomplishments and service
  • Employee Referral Program

Westinghouse Electric Company is the global nuclear energy industry's first choice for safe, clean, and efficient energy solutions. We enable our delivery of this vision by living our value system:
  • Safety and Quality
  • Integrity and Trust
  • Customer Focus and Innovation
  • Speed and Passion to Win
  • Teamwork and Accountability

While our Global Headquarters are located in Cranberry Township, PA, we have over 11,000 employees working at locations in 19 different countries. You can learn more by visiting http://www.westinghousenuclear.com.
Westinghouse is an Equal Opportunity Employer including Veterans and Individuals with Disabilities
Get connected with Westinghouse on social media: Twitter | Facebook | LinkedIn| YouTube
Employment opportunities may require access to information which is subject to the export control regulations of the United States. Hiring decisions for such positions are required by law to be made in compliance with these regulations. Applicants for employment opportunities in other countries must be able to meet the comparable export control requirements of that country and of the United States.

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