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Manager 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 ... Create and manage a Bill-Of-Materials (BOM). * Find and develop suppliers for all components. * Own ...

Radiant Industries

Cost Accounting Manager

El Segundo, CA · On-site

$115K - $168K/yr

Radiant's unique, practical approach to nuclear development leverages modern software engineering ... Manage all aspects of manufacturing cost accounting, including costing projects, month-end close ...

Radiant Industries

Senior Technical Recruiter

El Segundo, CA · On-site

$115K - $168K/yr

... managers and a champion of Radiant's mission to deliver the world's first portable zero-carbon nuclear microreactor. The ideal candidate thrives in fast-paced, high-ambiguity environments, excels at ...

Radiant Industries

Media Relations Director

El Segundo, CA · On-site

$154K - $256K/yr

Manage crisis communications when Radiant or the nuclear industry faces negative coverage. * Track and report on media metrics, including coverage volume, sentiment, share of voice vs. competitors ...

Radiant

Project Developer

El Segundo, CA · On-site

$115K - $168K/yr

Radiant's unique, practical approach to nuclear development leverages modern software engineering ... The projects you manage will be successful if they are delivered on time and on budget.

Radiant

Lead Test Engineer, Power Generation

El Segundo, CA · On-site

$158K - $247K/yr

Radiant's unique, practical approach to nuclear development leverages modern software engineering ... Establish standards for test documentation, data management, and knowledge capture. * Help mature ...

Radiant Industries

Construction Manager

Oak Ridge, TN · On-site

$115K - $190K/yr

Radiant's unique, practical approach to nuclear development leverages modern software engineering ... Review and manage RFIs, submittals, pay applications, and change orders with a bias toward speed ...

Radiant Industries

Senior Test Engineer

El Segundo, CA · On-site

$133K - $184K/yr

Radiant's unique, practical approach to nuclear development leverages modern software engineering ... Proficiency in managing or optimizing complex hardware and software processes for testing and ...

Radiant

Principal Turbomachinery Engineer

El Segundo, CA · On-site

$200K - $314K/yr

Radiant's unique, practical approach to nuclear development leverages modern software engineering ... Provide technical guidance and design reviews across the team without direct people management ...

Radiant

IT Help Desk Associate

El Segundo, CA · On-site

Radiant's unique, practical approach to nuclear development leverages modern software engineering ... Manage the support request software system (Jira) to ensure timely and effective issue resolution.

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Manager Radiant Nuclear information

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$39K

$115.1K

$154.5K

How much do manager radiant nuclear jobs pay per year?

As of Jul 14, 2026, the average yearly pay for manager radiant nuclear in the United States is $115,106.00, according to ZipRecruiter salary data. Most workers in this role earn between $109,500.00 and $131,000.00 per year, depending on experience, location, and employer.

What is the difference between Manager Radiant Nuclear vs Nuclear Engineer?

AspectManager Radiant NuclearNuclear Engineer
Primary RoleOversees operations, manages teams, ensures safety protocols in radiative nuclear facilitiesDesigns, develops, and tests nuclear systems and components
Required CredentialsManagement experience, safety certifications, possibly engineering backgroundEngineering degree, professional engineering license, specialized nuclear certifications
Work EnvironmentIndustrial facilities, control rooms, management officesLaboratories, research facilities, nuclear plants
Industry UsageCommonly employed in nuclear power plants and radiative facilitiesUsed in research, development, and design of nuclear technology

The Manager Radiant Nuclear focuses on overseeing operations and managing teams within radiative nuclear facilities, requiring management skills and safety certifications. In contrast, Nuclear Engineers are involved in designing and developing nuclear systems, requiring technical engineering expertise. Both roles are integral to the nuclear industry but serve different functions and career paths.

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Manager Radiant Nuclear jobs near you
Infographic showing various Manager Radiant Nuclear job openings in the United States as of July 2026, with employment types broken down into 85% Full Time, 13% Part Time, 1% Temporary, and 1% Contract. Highlights an 86% Physical, 1% Hybrid, and 13% Remote job distribution, with an average salary of $115,106 per year, or $55.3 per hour.
Mechanical Engineer, Fluid Systems - 2026 New Graduate

Mechanical Engineer, Fluid Systems - 2026 New Graduate

Radiant

El Segundo, CA • On-site

$105K - $125K/yr

Full-time

Medical, Dental, Vision, Life, PTO

Re-posted 4 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 highly motivated Mechanical Engineer, Fluids Systems to help own critical Kaleidos fluid systems from preliminary design through build and production. These systems include the primary loop subsystems and power conversion loop, serving to convert heat from the reactor core into electrical power. You will be responsible for the following: trade studies, component selection, thermal hydraulic analysis, piping design, vendor selection, assembly, and testing. You will have an instrumental impact of fueling the first new commercial reactor design in over 50 years by 2026.
Responsibilities & Duties:
  • Help own end-to-end engineering of fluid systems and components, including compressors, valves, and heat exchangers.
  • Perform thermal and fluids analysis to drive design decisions, verify system performance, and ensure structural integrity using first-principle hand calculations and finite element tools.
  • Perform trade studies to optimize system and meet program requirements.
  • Develop and execute manufacturing/assembly instructions and test plans.
  • Create and manage a Bill-Of-Materials (BOM).
  • Find and develop suppliers for all components.
  • Own subassembly design, manufacturing, and test schedules.
  • Own risk analysis (FMEA) for subsystems.
  • Collect requirements, provide expertise and feedback to engineers in other functional areas via clear, constructive communication.

Required Qualifications & Skills:
  • Bachelor's degree from an accredited institution in Mechanical, Materials, Aeronautical, Civil or Structural Engineering.
  • Experience with fluid system architecture design.
  • Experience in designing, building, and testing fluids systems.
  • Proficient knowledge in fluid dynamics and thermodynamics.
  • Proficient knowledge of heat exchanger design and analysis methods.

Desired Qualifications & Skills:
  • Knowledge of thermodynamic power cycles.
  • Prior experience with fluid system modeling via Matlab/Python.
  • Experienced in design for manufacturability and ramping up hardware build in a production environment.
  • Experienced in designing and operating test stands.
  • Takes extreme ownership of work and a high degree of responsibility.
  • Excellent communication across multidisciplinary teams.
  • Prior nuclear experience in not required for this role.
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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