ZipRecruiter

Log In

1

Hire Reactor Jobs (NOW HIRING)

Radiant

Senior Thermal Analyst

El Segundo, CA · On-site

$139K - $224K/yr

The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be ... Radiant's new hire compensation package includes base salary, substantial equity grants, and ...

Radiant

Senior Thermal Modeling Analyst

El Segundo, CA · On-site

$139K - $224K/yr

The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be ... Radiant's new hire compensation package includes base salary, substantial equity grants, and ...

Radiant Industries

Senior Thermal Analyst

El Segundo, CA · On-site

$139K - $224K/yr

The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be ... Radiant's new hire compensation package includes base salary, substantial equity grants, and ...

Radiant

Nuclear Engineer, Core Physics

El Segundo, CA · On-site

$106K - $146K/yr

The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be ... Radiant's new hire compensation package includes base salary, substantial equity grants, and ...

Radiant Industries

Senior Test Engineer

El Segundo, CA · On-site

$133K - $184K/yr

The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be ... Radiant's new hire compensation package includes base salary, substantial equity grants, and ...

Avero

Instrumentation and Control Technician

Covert, MI · On-site

Repairs reactor protection circuitry, fuel handling equipment turbine protective circuitry feed ... This role is a direct hire position with full benefits, competitive pay, and could offer relocation ...

Radiant

Lead Nuclear Engineer

El Segundo, CA · On-site

$140K - $237K/yr

The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be ... Hire, lead, and grow a high performing team of nuclear engineers. * Own nuclear engineering ...

Radiant

Thermal Modeling Engineer

El Segundo, CA · On-site

$107K - $150K/yr

The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be ... Radiant's new hire compensation package includes base salary, substantial equity grants, and ...

Radiant Industries

Lead Nuclear Engineer

El Segundo, CA · On-site

$140K - $237K/yr

The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be ... Hire, lead, and grow a high performing team of nuclear engineers. * Own nuclear engineering ...

TerraPower LLC.

Nuclear Analysis Engineer

Bellevue, WA · Hybrid

$111K - $133K/yr

... to hire highly motivated and forward-thinking professionals who are interested in focusing on advanced nuclear reactor research and development and influencing change within the nuclear power ...

TerraPower LLC.

Nuclear Analysis Engineer

Bellevue, WA · On-site

$111K - $133K/yr

... to hire highly motivated and forward-thinking professionals who are interested in focusing on advanced nuclear reactor research and development and influencing change within the nuclear power ...

next page

Showing results 1-20

All JobsHire Reactor Jobs

Hire Reactor information

What is the difference between recruited and hired?

In the context of a job like Hire Reactor, recruited refers to the process of identifying and attracting potential candidates, often involving outreach or sourcing efforts. Hired means the candidate has successfully accepted a job offer and officially joined the company or role. Recruitment is the initial stage, while hiring confirms the employment agreement has been made.

Which job is best for a 40 year old woman?

A 40-year-old woman can pursue a variety of roles such as project manager, administrative assistant, or customer service representative, depending on her skills and interests. Many jobs value experience and reliability, and flexible or part-time positions can also be suitable. Certifications or training in specific fields can enhance job prospects regardless of age.

Which jobs pay 50 an hour in the USA?

Jobs that typically pay $50 an hour in the USA include roles such as software developers, registered nurses with specialized skills, project managers, and certain skilled trades like electricians and plumbers. These positions often require relevant experience, certifications, or technical expertise and may involve full-time or contract work environments.

What is the role of a cinema usher porter?

A cinema usher porter is responsible for assisting customers, maintaining the cleanliness of the theater, and ensuring safety and comfort during screenings. They may also help with ticketing, guiding patrons to their seats, and enforcing theater policies.
More about Hire Reactor jobs
What cities are hiring for Hire Reactor jobs? Cities with the most Hire Reactor job openings:
What states have the most Hire Reactor jobs? States with the most job openings for Hire Reactor jobs include:
What job categories do people searching Hire Reactor jobs look for? The top searched job categories for Hire Reactor jobs are:
Hire Reactor jobs near you
Infographic showing various Hire Reactor job openings in the United States as of June 2026, with employment types broken down into 100% As Needed. Highlights an 95% Physical, 2% Hybrid, and 3% Remote job distribution.
Senior Thermal Analyst

Senior Thermal Analyst

Radiant

El Segundo, CA • On-site

$139K - $224K/yr

Full-time

Medical, Dental, Vision, Life, PTO

Posted 6 days ago

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 driven Senior Thermal Analyst with expertise in CFD and thermal FEA modeling. You will design, develop and implement simulations for the Kaleidos microreactor to ensure high fidelity, reliability, and safety of our systems. You'll work on cutting edge technical problems for a high temperature gas reactor that inform decisions across reactor systems, cooling systems, shielding, and more. You will have an opportunity to work in an interdisciplinary environment and drive milestones forward to unlock commercialization of the first mass-produced nuclear reactor.
Responsibilities & Duties:
  • Own and execute thermal CFD analysis to evaluate design and performance of Kaleidos reactor systems.
  • Develop and implement solutions to model turbulent flow, heat transfer, and multi-physics interactions
  • Identify and implement CFD simulation best practices
  • Build automated workflows to expand simulation capabilities, accuracy, and efficiencies
  • Collaborate across teams and disciplines to support design of reduced order analysis methods.

Required Qualifications & Skills:
  • Bachelor's degree in engineering, physics, or similar field from an accredited institution.
  • 5+ years of relevant industry experience.
  • 5+ years experience with STAR-CCM+, Ansys Fluent, or other commercial CFD code.
  • Proficiency with CAD software (Siemens NX).
  • Mastery of finite element and computational fluid dynamics modeling principles and methods.
  • Experience communicating and distilling information with cross-functional teams.

Desired Qualifications & Skills:
  • Experience with radiation heat transport modeling.
  • Knowledge of nuclear reactor design.
  • Driven, self-motivated, and takes ownership of work end to end.

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.
Unfortunately, we are unable to provide visa sponsorship at this time.
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.

Apply