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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

Nuclear Engineer

El Segundo, CA · On-site

$104K - $125K/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 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 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

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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Entry Level Nuclear Criticality Safety Engineer information

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

As of Aug 17, 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, 17% Part Time, 2% 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.

Nuclear Safety Analyst

Idaho National Laboratory

Idaho Falls, ID • On-site

$79K - $195K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 21 days ago

Idaho National Laboratory rating

8.8

Company rating: 8.8 out of 10

Based on 16 frontline employees who took The Breakroom Quiz

16th of 120 rated laboratories

Job description


At Idaho National Laboratory, you'll play a critical role in securing the future of energy technology and national safety by identifying and mitigating risks in cutting-edge facilities. Your work on hazard analyses and safety documentation supports INL's legacy of pioneering innovation in nuclear energy and national security. By leading technical studies and collaborating with experts across the Laboratory, you'll help establish the safety standards that protect workers, communities, and the nation's scientific mission.
Idaho National Laboratory is hiring a Nuclear Safety Analyst to join our Facility Safety Engineering team at the Idaho Falls, Idaho location This position works a 9x80 schedule with every other Friday off and reports to the Nuclear Safety Engineering Manager. You will manage Documented Safety Analyses (DSAs) and Technical Safety Requirements (TSRs), including updates, revisions, and new development, ensuring compliance with 10 CFR 830 Subpart B.
This is a collaborative, service-oriented role requiring close engagement with facility operations, researchers, engineers, and project managers to develop practical, defensible safety solutions.
Essential Job Functions and Responsibilities:
  • Support implementation of the Nuclear Safety Program and ensure compliance with 10 CFR 830 and applicable DOE standards.
  • Develop, revise, and maintain DSAs and TSRs for existing facilities, major modifications, and new facilities.
  • Perform hazard identification, accident analyses, facility categorization, and safety system classification.
  • Derive DSA commitments and TSR controls from analytical results to prevent or mitigate hazardous and radioactive material releases.
  • Execute the Unreviewed Safety Question (USQ) process, including discovery USQs and Potential Inadequacies in the Safety Analysis (PISAs); develop interim controls and corrective action plans.
  • Support facility operations through review of operating procedures, operational events, modifications, and long-range planning activities.
  • Manage assigned safety basis projects, establish interface agreements, track progress, and ensure schedule commitments are met.
  • Develop safety controls that are technically sound and practical for operations to implement.
  • Provide technical peer reviews of safety basis documentation.
  • Utilize analytical methods and tools to support safety analyses; experience with MCNP or MicroShield is preferred.
  • Build strong working relationships with facility personnel and stakeholders to ensure effective implementation of safety requirements.

Required:
  • Level 2: Bachelor's degree in Physics, Health Physics, Nuclear Engineering, Mechanical Engineering, Chemical Engineering, or related field and 2+ years of relevant experience, OR Master's degree in a related field and 1+ year of relevant experience.
  • Level 3: Bachelor's degree in Physics, Health Physics, Nuclear Engineering, Mechanical Engineering, Chemical Engineering, or related field and 5+ years of relevant experience, OR Master's degree in a related field and 2+ years of relevant experience.
  • Experience developing technical safety documentation and performing hazard or accident analyses.
  • Familiarity with DOE nuclear safety requirements (10 CFR 830, DOE-STD-3009) and/or NRC regulatory frameworks.
  • This position requires the ability to obtain and maintain a Department of Energy "Q" clearance, which requires US Citizenship.

The ideal candidate will possess:
  • Advanced degree in Chemical Engineering, Mechanical Engineering, Nuclear Engineering, or Physics.
  • Experience preparing or reviewing DSAs and TSRs for DOE or NRC-regulated facilities.
  • Experience implementing the USQ process.
  • Coursework or experience in Probabilistic Risk Assessment (PRA).
  • Experience with analytical software such as MCNP or MicroShield.
  • Demonstrated ability to work collaboratively in a service-focused environment and develop practical, creative safety solutions.

Job Information:
  • The pay range for this position is: The pay range for this position is: Level 2 ($79,344 - $162,732) / Level 3 ($95,256 - $195,288). At Idaho National Laboratory compensation decisions are determined using factors such as education, relevant experience, and other credentials.
  • TDP: This is a testing designated position; you will be required to submit to a pre-employment drug screen and periodic drug testing throughout the term of your employment.
  • Multi-Level: This is a multi-level posting and you will be placed at the appropriate level dependent on depth and breadth of proven experience and skills.

Physical Requirements:
While performing the duties of this classification, the employee is frequently required to stand, walk, sit, stoop, kneel, bend, and work in an office and field/laboratory environment. Dexterity sufficient to don and doff radioactive anti-contamination garments, as well as use instrumentation to survey self and personal materials. The job requires hand/finger dexterity to keyboard or type, handle materials, manipulate tools, and reach with hands and arms. The job requires operation of job-related equipment and driving a vehicle. The employee must occasionally lift and/or move up to 35 pounds without assistance. Sufficient visual acuity and hearing capacity to perform the essential functions and interact with the public is required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
About Us
Benefits and Relocation
  • Medical, Dental, Vision, and Flexible Spending Accounts
  • 401(k) with a 4.2% employer contribution and up to 4.8% match (regular positions) or self-contribute access (postdoctoral positions)
  • Paid time off (personal leave)
  • Employee Education Program (tuition assistance for eligible positions)
  • Comprehensive Relocation Package
  • Benefit eligibility subject to multiple factors, including employment status and position classification.

At this time, BEA will not sponsor any H1-B visas obtained outside of the United States of America (U.S.A.), including consular visas.
INL is a science-based, applied engineering national laboratory dedicated to supporting the U.S. Department of Energy's mission in nuclear energy research, science, and national defense. With more than 6,300 scientists, researchers, and support staff, the laboratory works with national and international governments, universities and industry partners to change the world's energy future and secure our nation's critical infrastructure.
INL Mission:
Our mission is to discover, demonstrate and secure innovative nuclear energy solutions, other clean energy options and critical infrastructure.
INL Vision:
Our vision is to change the world's energy future and secure our nation's critical infrastructure.
Selective Service Requirements:
To be eligible for employment at INL males born after December 31, 1959 must have registered with the Selective Service System (SSS). For more information see www.sss.gov.
Equal Employment Opportunity:
Idaho National Laboratory (INL) is an Equal Employment Opportunity (EEO) employer. It is the policy of INL to provide equal employment opportunities to all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, protected veteran or disabled status, or genetic information.
Reasonable Accommodation:
We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.
Other Information:
When applying to positions please provide a resume and answer all questions on the following screens. Applicants, who fail to provide a resume or answer the questions, may be deemed ineligible for consideration.
INL does not accept resumes from third party vendors unsolicited.

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About Idaho National Laboratory

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Idaho National Laboratory is a leading multi-disciplinary national laboratory dedicated to supporting the U.S. Department of Energy's missions in nuclear and energy research, science, and national defence. Located in Idaho Falls, ID, US, it operates under the management of Battelle Energy Alliance. Since its inception in 1949, the lab has remained at the forefront of nuclear energy innovations and advancements, providing critical scientific and technological inputs to support national priorities. Guided by its commitment to excellence, innovative research, collaborative partnerships, and integrity, the lab continues to play a vital role in driving America's nuclear and energy future.

Industry

Scientific research and development services

Company size

5,001 - 10,000 Employees

Headquarters location

Idaho Falls, ID, US

Year founded

1949

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