{"schemaVersion":"jobsearcher.job.v1","id":"ac8d46bc500e3e20225f8d73","url":"https://jobsearcher.com/jobs/ac8d46bc500e3e20225f8d73","canonicalUrl":"https://jobsearcher.com/jobs/ac8d46bc500e3e20225f8d73","title":"CFD & Thermal Engineer for Nuclear Microreactors","description":"Radiant is seeking a Thermal Modeling Engineer in El Segundo, CA, to develop simulations for their innovative Kaleidos microreactor. The ideal candidate will have a Bachelor's degree in engineering or physics and 3+ years of experience in CFD using tools like Star CCM+ or Ansys Fluent.\nResponsibilities include executing thermal analyses and communicating results effectively. The position offers substantial equity, comprehensive health benefits, and a flexible PTO policy as well as a strong incentive stock plan.\n\n#J-18808-Ljbffr","company":"Radiant","rawCompany":"radiant","city":"El Segundo","state":"CA","isRemote":false,"isActive":false,"createdAt":"2026-06-20T04:50:19.453Z","occupations":[{"code":"17-2141.00","title":"Mechanical Engineers","slug":"mechanical-engineers"},{"code":"17-2161.00","title":"Nuclear Engineers","slug":"nuclear-engineers"},{"code":"17-2199.00","title":"Engineers, All Other","slug":"engineers-all-other"}],"industries":[{"code":"541330","title":"Engineering Services","slug":"engineering-services"},{"code":"541715","title":"Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)","slug":"research-and-development-in-the-physical-engineering-and-life-sciences-except-nanotechnology-and-biotechnology"},{"code":"333414","title":"Heating Equipment (except Warm Air Furnaces) Manufacturing","slug":"heating-equipment-except-warm-air-furnaces-manufacturing"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"CFD & Thermal Engineer for Nuclear Microreactors","description":"Radiant is seeking a Thermal Modeling Engineer in El Segundo, CA, to develop simulations for their innovative Kaleidos microreactor. The ideal candidate will have a Bachelor's degree in engineering or physics and 3+ years of experience in CFD using tools like Star CCM+ or Ansys Fluent.\nResponsibilities include executing thermal analyses and communicating results effectively. The position offers substantial equity, comprehensive health benefits, and a flexible PTO policy as well as a strong incentive stock plan.\n\n#J-18808-Ljbffr","datePosted":"2026-06-20T04:50:19.453Z","dateModified":"2026-06-20T04:50:19.453Z","hiringOrganization":{"@type":"Organization","name":"Radiant","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"El Segundo","addressRegion":"CA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"ac8d46bc500e3e20225f8d73"},"url":"https://jobsearcher.com/jobs/ac8d46bc500e3e20225f8d73"}}