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Radiant Nuclear Jobs (NOW HIRING)

Radiant

Mechanical Engineer, Fluid Systems

El Segundo, CA · On-site

$107K - $150K/yr

Radiant's unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials.

Radiant

Business Development Manager

El Segundo, CA · On-site

$115K - $168K/yr

Radiant's unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials.

Radiant

Build Engineer, Turbomachinery

El Segundo, CA · On-site

$74K - $130K/yr

Radiant's unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials.

Radiant

Senior Loads & Dynamics Engineer

El Segundo, CA · On-site

$133K - $184K/yr

Radiant's unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials.

Radiant

Investor Relations Director

El Segundo, CA · On-site

$154K - $256K/yr

Radiant's unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials.

Radiant

Direct Procurement Manager

El Segundo, CA · On-site

$85K - $168K/yr

Radiant's unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials.

Radiant

IT Help Desk Associate

El Segundo, CA · On-site

Radiant's unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials.

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How much do radiant nuclear jobs pay per hour?

As of Jul 14, 2026, the average hourly pay for radiant 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 the key skills and qualifications needed to thrive in the Radiant Nuclear position, and why are they important?

To excel as a Radiant Nuclear Engineer, you typically need a strong background in nuclear engineering, radiation physics, and safety protocols, usually supported by a relevant engineering degree and certification. Familiarity with specialized nuclear instrumentation, radiation detection equipment, and regulatory compliance systems is essential. Excellent problem-solving abilities, attention to detail, and effective teamwork are valuable soft skills in this role. These capabilities ensure safe operations, regulatory compliance, and successful collaboration in high-stakes nuclear environments.

What is a Radiant Nuclear job?

A Radiant Nuclear job typically involves working with advanced nuclear technologies, focusing on safe and efficient energy production. Roles may include reactor operation, radiation safety, regulatory compliance, and research into next-generation nuclear reactors. Professionals in this field often have backgrounds in nuclear engineering, physics, or related disciplines. The job may also involve maintaining and optimizing nuclear systems for sustainable energy solutions.

Who owns Radiant Nuclear?

Radiant Nuclear is a company specializing in nuclear technology and energy solutions. Ownership details are typically private, often held by founders, investors, or parent corporations, and may not be publicly disclosed. For specific ownership information, refer to official company filings or corporate disclosures.

Is it hard to get a job at a nuclear power plant?

Getting a job at a nuclear power plant can be competitive and requires relevant education, such as a degree in engineering or nuclear science, along with specialized training and certifications like NRC licensing. Candidates often need to pass background checks, drug tests, and technical assessments, and experience in the energy or engineering fields can improve chances. The hiring process may also involve security clearances due to the sensitive nature of the work environment.

What is the highest paying nuclear job?

The highest paying nuclear jobs are typically senior roles such as Nuclear Power Plant Managers, Nuclear Engineering Directors, or specialized nuclear consultants, with salaries often exceeding $150,000 annually. These positions require extensive experience, advanced certifications, and knowledge of nuclear safety protocols and regulatory compliance.

How many employees are at Radiant Nuclear?

Radiant Nuclear is a company specializing in nuclear technology, and its employee count is not publicly disclosed. The number of employees can vary depending on the company's size and projects, typically ranging from small teams to larger organizations in the industry. For specific figures, contacting the company directly or visiting their official website is recommended.

What are the typical work environments for Radiant Nuclear professionals, and how do they collaborate with other teams?

Radiant Nuclear professionals often work in power plants, research labs, or industrial facilities where they ensure the safe and efficient use of nuclear technologies. Their responsibilities usually involve close collaboration with engineers, health physicists, safety inspectors, and operations staff to maintain safety standards and respond to technical challenges. They may participate in multi-disciplinary project teams, routinely attend safety briefings, and work with regulatory agencies to ensure compliance. These team interactions foster a culture of safety and innovation, making communication skills and teamwork vital for success in the role.

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Radiant Nuclear jobs near you
Infographic showing various Radiant Nuclear job openings in the United States as of July 2026, with employment types broken down into 1% As Needed, 85% Full Time, 7% Part Time, and 7% Contract. Highlights an 94% Physical, 2% Hybrid, and 4% Remote job distribution, with an average salary of $107,964 per year, or $51.9 per hour.
Senior Mechanical Engineer - Turbomachinery Rotordynamics

Senior Mechanical Engineer - Turbomachinery Rotordynamics

Radiant

El Segundo, CA • On-site

$158K - $247K/yr

Full-time

Medical, Dental, Vision, Life, PTO

Posted yesterday

Job description

About Radiant
Radiant is an El Segundo, CA-based startup building the world's first mass-produced, portable nuclear microreactors. The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. Portable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant's unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028.
About the Role
Radiant is seeking a highly motivated Senior Mechanical Engineer to join the team responsible for the power generation and primary cooling turbomachinery of our Kaleidos product. This role involves performing the rotordynamic analysis and bearing selection of high-speed rotating machinery including compressors, turbines, and pumps for high-temperature applications. The ideal candidate will have a strong background in rotordynamics and bearing selection, along with hands-on experience testing real hardware.
Responsibilities & Duties:
  • Design, build, and test turbomachinery for Radiant's power generation systems.
  • Perform dynamic analysis of rotor-bearing systems to evaluate vibrational behavior, stability, and resonance characteristics.
  • Conduct critical speed analysis, Campbell diagram analysis, and stability assessments to optimize rotor system design for minimal vibration and resonance.
  • Analyze rotor response under transient operating conditions, including startup, shutdown, and off-design operations.
  • Select appropriate bearing types (e.g., rolling element, fluid film, magnetic) based on operating conditions and performance requirements. Evaluate bearing loads, life, and thermal performance.
  • Prepare technical reports, design documentation, and presentation materials.
  • Support the build and testing of prototype, first article, and production hardware.

Required Qualifications & Skills:
  • Bachelor's or Master's degree in Mechanical Engineering or a related field.
  • 5+ years of experience in the design and analysis of turbomachinery, rotating equipment, or mechanisms.
  • Strong understanding of rotordynamic principles and tools (e.g., XLrotor, Dyrobes, or equivalent).
  • Excellent problem-solving, technical communication, and organizational skills.

Desired Qualifications & Skills:
  • Prior experience with power generation applications.
  • Knowledge of bearing selection for high-temperature, high-speed applications.
  • Hands-on experience with turbomachinery testing and instrumentation.
  • Familiarity with relevant industry standards (API, ASME, ISO).
  • Prior nuclear experience is not required for this role.

Additional Requirements:
  • Must be willing to work extended hours and weekends as necessary to accomplish our mission.
  • Must work 100% onsite at El Segundo HQ.
Benefits and Perks
  • Stock: Substantial incentive stock plan for all full-time employees.
  • Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.
  • One Medical: Sponsored memberships for employees and their dependents.
  • Vision: 100% top tier plan coverage + 50% for dependents.
  • Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.
  • Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits.
  • 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees.
  • Daily catered lunch. Free snacks and drinks.
  • Flexible PTO policy. Remote workday allocation.
  • Company and team-bonding events, happy hours and in-person camaraderie.
  • Beautiful El Segundo headquarters close to the Pacific Ocean.

Total Compensation and Benefits
Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant's new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant.
The best of today's advanced reactor builders don't wait for job postings. They join the winning team. If that's you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com.
We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.
This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant's capacity to serve in compliance with U.S. export controls.

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