{"schemaVersion":"jobsearcher.job.v1","id":"67123bd5188b698ccbb62335","url":"https://jobsearcher.com/jobs/67123bd5188b698ccbb62335","canonicalUrl":"https://jobsearcher.com/jobs/67123bd5188b698ccbb62335","title":"Onsite Reactor Systems Engineer - Shape NextGen Microreactors","description":"Radiant is seeking a Reactor Systems Engineer in El Segundo, CA to integrate diverse physics, thermal, controls, and materials work into a coherent reactor design. You will work hands-on with thermal models, specs, and subsystem designs while building collaboration across engineering disciplines. The role emphasizes writing specifications, memos, and system descriptions, with a focus on safe, timely delivery in a fast-moving startup environment. Onsite presence at the El Segundo HQ is required.\n#J-18808-Ljbffr","company":"Radiant","rawCompany":"radiant","city":"Eastern","state":"KY","isRemote":false,"isActive":false,"createdAt":"2026-10-08T04:16:57.749Z","occupations":[{"code":"17-2161.00","title":"Nuclear Engineers","slug":"nuclear-engineers"},{"code":"17-2199.00","title":"Engineers, All Other","slug":"engineers-all-other"},{"code":"17-2141.00","title":"Mechanical Engineers","slug":"mechanical-engineers"}],"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":"221113","title":"Nuclear Electric Power Generation","slug":"nuclear-electric-power-generation"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Onsite Reactor Systems Engineer - Shape NextGen Microreactors","description":"Radiant is seeking a Reactor Systems Engineer in El Segundo, CA to integrate diverse physics, thermal, controls, and materials work into a coherent reactor design. You will work hands-on with thermal models, specs, and subsystem designs while building collaboration across engineering disciplines. The role emphasizes writing specifications, memos, and system descriptions, with a focus on safe, timely delivery in a fast-moving startup environment. Onsite presence at the El Segundo HQ is required.\n#J-18808-Ljbffr","datePosted":"2026-10-08T04:16:57.749Z","dateModified":"2026-10-08T04:16:57.749Z","hiringOrganization":{"@type":"Organization","name":"Radiant","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Eastern","addressRegion":"KY","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"67123bd5188b698ccbb62335"},"url":"https://jobsearcher.com/jobs/67123bd5188b698ccbb62335"}}