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Full Time Nuclear Design Jobs (NOW HIRING)

AMPERA INC

Materials Scientist

Palm Beach Gardens, FL · On-site

Palm Beach Gardens, FL Employment Type: Full-time, Exempt About AMPERA AMPERA is redefining clean ... nuclear design, and additive manufacturing . Position Overview AMPERA is seeking an experienced ...

Niowave Inc.

Nuclear Engineer

Lansing, MI · On-site

$89K - $107K/yr

Isotope production target design, operation, and handling. * Nuclear measurements. * Radiation ... * Full-time position * The company's standard operating hours are Monday thru Friday 6:00 a.m. - 6 ...

Radiant

Senior Reactor Operations Engineer

El Segundo, CA · On-site

$133K - $164K/yr

Required Qualifications & Skills: * 4+ years of full-time professional experience in engineering problem-solving, including system design, analysis, or testing. * 2+ years of full-time nuclear ...

NextEra Energy

Nuclear Engineer I

Jupiter, FL · On-site

$91K - $110K/yr

Perform and oversee nuclear reactor analyses including core design, RSAC calculations, NDR ... Exempt Employee Type: Full Time Job Category: Engineering Organization: Florida Power & Light ...

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How much do full time nuclear design jobs pay per hour?

As of Jun 7, 2026, the average hourly pay for full time nuclear design in the United States is $85.10, according to ZipRecruiter salary data. Most workers in this role earn between $82.69 and $93.75 per hour, depending on experience, location, and employer.

What is the difference between Full Time Nuclear Design vs Full Time Nuclear Engineering?

AspectFull Time Nuclear DesignFull Time Nuclear Engineering
CredentialsBachelor's or Master's in Nuclear Engineering or related field; certifications varyBachelor's or Master's in Nuclear Engineering; professional engineer (PE) license often preferred
Work EnvironmentDesign offices, research facilities, project sitesDesign labs, research facilities, operational plants
Employer & Industry UsagePower plant design firms, government agencies, contractorsPower plants, consulting firms, government agencies

Full Time Nuclear Design focuses on creating and developing nuclear plant designs, while Full Time Nuclear Engineering involves applying engineering principles to operate, analyze, and improve nuclear systems. Both roles require strong technical skills, but their daily tasks and focus areas differ within the nuclear industry.

What cities are hiring for Full Time Nuclear Design jobs? Cities with the most Full Time Nuclear Design job openings:
What are the most commonly searched types of Nuclear Design jobs? The most popular types of Nuclear Design jobs are:
What states have the most Full Time Nuclear Design jobs? States with the most job openings for Full Time Nuclear Design jobs include:
Full Time Nuclear Design jobs near you

Thermal-Hydraulics Engineer

AMPERA INC

Palm Beach Gardens, FL • Hybrid

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 22 days ago

Job description

Benefits:
  • 401(k)
  • 401(k) matching
  • Dental insurance
  • Health insurance
  • Paid time off
  • Vision insurance
  • Competitive salary
  • Donation matching
  • Employee discounts
  • Opportunity for advancement
  • Wellness resources

Thermal-Hydraulics Engineer

Location: Palm Beach Gardens, FL
Employment Type: Full-time, Exempt
About AMPERA

AMPERA is redefining clean, energy with compact, ultra-safe nuclear systems that power AI, industry, and defense with zero emissions and unmatched reliability. Our modular micro-reactors combine the best of fusion and fission to deliver scalable, deployable, and inherently safe energy anywhere.
As a fast-growing company, AMPERA blends the agility of a startup with the ambition of a global energy innovator. Joining us means becoming part of a bold mission to revolutionize how the world generates power through advanced nuclear design, next-generation manufacturing, and system integration.
Position Overview

AMPERA is seeking an experienced Thermal-Hydraulics Engineer to perform design, modeling, and analysis of fluid flow and heat transfer within our advanced hybrid reactor systems. This role will directly contribute to the performance, safety, and efficiency of AMPERAs compact micro-reactors, working closely with teams in nuclear physics, mechanical design, and materials science.
The ideal candidate will have a strong background in thermal-fluid systems, reactor cooling technologies, and multiphysics modeling, as well as an enthusiasm for pioneering next-generation nuclear energy solutions.
Key Responsibilities

  • Develop and analyze reactor thermal-hydraulic models using tools such as RELAP5, OpenFOAM, COMSOL, Abaqus, or STAR-CCM+.
  • Design and optimize heat transfer and fluid flow systems, including primary and secondary cooling loops.
  • Evaluate performance of coolants (liquid metals, molten salts, gases) for heat removal and safety margins.
  • Support the integration of Liquid Metal Jetting (LMJ) components and additive-manufactured thermal structures.
  • Conduct transient, steady-state, and accident scenario simulations to validate reactor safety and efficiency.
  • Collaborate with nuclear, mechanical, and control systems engineers to refine system design and performance.
  • Prepare technical documentation, safety reports, and validation data for licensing and regulatory submissions.
  • Participate in experimental testing and scaling of thermal-hydraulic systems.

Qualifications

  • M.S. or Ph.D. in Nuclear Engineering, Mechanical Engineering, or related field.
  • 510 years of experience in thermal-hydraulics analysis, fluid dynamics, or heat transfer design.
  • Proficiency with reactor analysis codes (RELAP5, TRACE, OpenMC, or equivalent).
  • Experience with liquid metal or advanced coolant systems preferred.
  • Familiarity with multiphase flow modeling and coupled neutronic-thermal simulations.
  • Strong analytical, computational, and communication skills.
  • U.S. citizenship or eligibility for security clearance may be required.

What We Offer

  • Competitive salary
  • Comprehensive benefits package including healthcare, dental, vision, STD, LTD, Life/AD&D and 401(k).
  • Opportunity to pioneer advanced nuclear fuel technologies driving the next generation of clean energy.
  • Collaborative, mission-driven environment that fosters technical excellence and innovation.
  • Career advancement potential as AMPERA expands its fuel development and reactor manufacturing programs.