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Entry Level Nuclear Jobs (NOW HIRING)

Fissionaire

Nuclear Engineer I/II (Reactor Design)

Madison, WI · On-site

$99K - $118K/yr

We are seeking a highly skilled entry-level Nuclear Engineer I/II to join our dynamic team and contribute to the design and development of next-generation nuclear reactors. The Nuclear Engineer I/II ...

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How much do entry level nuclear jobs pay per hour?

As of Jul 5, 2026, the average hourly pay for entry level nuclear in the United States is $51.91, according to ZipRecruiter salary data. Most workers in this role earn between $39.18 and $62.50 per hour, depending on experience, location, and employer.

What are entry level nuclear jobs?

Entry level nuclear jobs are positions within the nuclear industry that require minimal prior experience and are suitable for recent graduates or individuals new to the field. These roles often include positions such as nuclear technician, junior operator, or support staff in power plants, laboratories, or regulatory agencies. Entry level employees typically receive on-the-job training and may assist in monitoring equipment, collecting data, or supporting safety procedures. These jobs serve as a starting point for advancing to more specialized or higher-level roles within the nuclear sector.

What are some typical responsibilities for an entry level nuclear engineer and how do they contribute to larger projects?

Entry level nuclear engineers often assist with data analysis, safety assessments, and monitoring systems within nuclear facilities. They typically work under the supervision of senior engineers, supporting the development and maintenance of reactors or nuclear equipment. These professionals play a crucial role in ensuring regulatory compliance and operational safety, and their contributions help larger teams meet project milestones efficiently. Collaboration with cross-disciplinary teams, such as radiation safety and mechanical engineering, is common and provides valuable exposure to different aspects of the nuclear industry.

What are the key skills and qualifications needed to thrive as an Entry Level Nuclear Technician, and why are they important?

To thrive as an Entry Level Nuclear Technician, you generally need a strong background in math, physics, and engineering principles, often supported by an associate degree in nuclear technology or a related field. Familiarity with radiation detection equipment, reactor control systems, and safety protocols, as well as certification such as the Nuclear Uniform Curriculum Program (NUCP), is typically required. Attention to detail, strong problem-solving abilities, and effective communication are crucial soft skills for this role. These skills ensure safe, accurate operation in a highly regulated environment where precision and teamwork are vital for both safety and efficiency.

What is the difference between Entry Level Nuclear vs Entry Level Nuclear Technician?

AspectEntry Level NuclearEntry Level Nuclear Technician
Required CredentialsHigh school diploma or equivalent; some roles may require an associate degreeHigh school diploma; technical training or associate degree often preferred
Work EnvironmentPower plants, research facilities, or manufacturing sitesPower plants, maintenance facilities, or research labs
Industry UsageGeneral term for entry-level roles in nuclear industrySpecific role focused on operating and maintaining nuclear equipment

Entry Level Nuclear is a broad term for initial roles in the nuclear industry, while Entry Level Nuclear Technician refers specifically to positions involving hands-on operation and maintenance of nuclear systems. Both require safety training and basic technical skills, but the technician role often demands more technical certifications and practical experience.

More about Entry Level Nuclear jobs
What cities are hiring for Entry Level Nuclear jobs? Cities with the most Entry Level Nuclear job openings:
What are the most commonly searched types of Nuclear jobs? The most popular types of Nuclear jobs are:
What states have the most Entry Level Nuclear jobs? States with the most job openings for Entry Level Nuclear jobs include:
Entry Level Nuclear jobs near you
Infographic showing various Entry Level Nuclear job openings in the United States as of June 2026, with employment types broken down into 3% As Needed, 95% Full Time, 1% Part Time, and 1% Contract. Highlights an 95% Physical, 1% Hybrid, and 4% Remote job distribution, with an average salary of $107,964 per year, or $51.9 per hour.

Nuclear Engineer I/II (Reactor Design)

Fissionaire

Madison, WI • On-site

$99K - $118K/yr

Full-time

Posted 19 days ago

Job description

As an emerging leader in nuclear engineering, our startup is developing revolutionary reactor technology to secure safe and abundant energy for future generations.  We are seeking a highly skilled entry-level Nuclear Engineer I/II to join our dynamic team and contribute to the design and development of next-generation nuclear reactors.


The Nuclear Engineer I/II will contribute to the design, analysis, and optimization of advanced nuclear reactor systems. The ideal candidate will have a strong background in nuclear engineering, proficiency with industry-standard design software, and a proactive, self-starting attitude. This role requires innovative thinking, technical expertise, and a commitment to advancing safe and sustainable nuclear energy solutions.

Key responsibilities
  • Design and develop nuclear reactor systems, including core design, thermal-hydraulics, and safety systems, ensuring compliance with regulatory standards.
  • Perform simulations and analyses to optimize reactor performance, safety, and efficiency using industry-standard software tools.
  • Collaborate with multidisciplinary teams, including mechanical engineers, materials scientists, and safety analysts, to integrate reactor designs into broader systems.
  • Conduct risk assessments and safety analyses to ensure designs meet stringent nuclear safety requirements.
  • Prepare technical reports, design documentation, and presentations for internal stakeholders and regulatory bodies.
  • Stay updated on advancements in nuclear technology, materials, and regulations to incorporate cutting-edge solutions into designs.
  • Participate in project planning and scheduling to ensure timely delivery of design milestones.
  • Contribute to research and development initiatives for innovative reactor concepts.  
qualifications
  • Master’s degree in Nuclear Engineering or a related field. Ph.D. preferred but not required.
  • Minimum of 1-2 years of experience in nuclear reactor design, analysis, or related fields within industry or in academic work.
  • Proficiency with nuclear design and analysis software, such as MCNP, SCALE, RELAP5, COMSOL, MOOSE, GOTHIC etc.
  • Familiarity with CAD software for reactor component design.
  • Proficiency in programming languages for data analysis, scripting, or automation of design processes.
  • Knowledge of nuclear physics, neutronics, thermal-hydraulics, and reactor safety principles.
  • Experience with Molten Salt Reactor design preferred.
  • Demonstrated ability to work independently, take initiative, and drive projects to completion with minimal supervision.
  • Excellent written and verbal communication skills for technical documentation and cross-functional collaboration.
  • Familiarity with nuclear regulatory frameworks and safety standards.
  • Knowledge of materials science, particularly related to radiation-resistant materials and high-temperature applications.
  • Familiarity with risk assessments and analysis (PRA, FMEA, PIRT etc.) preferred
  • Familiarity with computational fluid dynamics (CFD) for thermal-hydraulic analysis preferred.
  • U.S. citizenship or permanent residency required.
What we offer
  • Competitive salary with equity options
  • Comprehensive benefits, holiday and PTO schedule
  • Opportunity to shape foundational operations in a groundbreaking nuclear startup.

Fissionaire’s technology is subject to U.S. export control regulations, which require the company to review applicants’ eligibility based on their citizenship or residency status. As part of the application process, candidates will be asked to indicate whether they are a U.S. citizen, green card, lawful permanent resident, asylee, or refugee resident to support this review. Because government authorization timelines can vary, Fissionaire is unable to consider alternate resident statuses where required approvals may not be obtainable within a timeframe that meets business needs.

Fissionaire is an Equal Opportunity Employer that does not discriminate on the basis of actual or perceived race, colour, creed, religion, national origin, ancestry, citizenship status, age, sex or gender (including pregnancy, childbirth, pregnancy-related conditions, and lactation), gender identity or expression (including transgender status), sexual orientation, marital status, family or relationship structure, military service and veteran status, physical or mental disability, genetic information, gender identity, or any other characteristic protected by applicable federal, state, or local laws and ordinances. Fissionaire’s management team is dedicated to this policy with respect to recruitment, hiring, placement, promotion, transfer, training, compensation, benefits, employee activities, access to facilities and programs, and general treatment during employment.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.