Thermal Engineer Intern — Portable Nuclear Microreactors
Radiant
Radiant in El Segundo, CA is seeking a highly motivated Thermal Engineer Intern to join the team for Summer 2027. You will perform thermal analysis and CFD on Kaleidos systems, document results, and help expand CFD capabilities in a fast-paced startup environment. This onsite internship offers hands-on experience with a pioneering nuclear microreactor program and opportunities to develop methods supporting lower-fidelity analyses. #J-18808-Ljbffr Radiant
- Summer 2027 Internship - Thermal Engineer 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...InternshipNuclearSummer workSummer internshipRemote work
$139.5k - $224.7k
...building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor,... ...development leverages modern software engineering to rapidly deliver safe, factory-... ...RoleRadiant is seeking a driven Senior Thermal Modeling Engineer with expertise in...NuclearFull timeSummer workImmediate startRemote workFlexible hoursWeekend work$139.5k - $224.7k
...building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor,... ...development leverages modern software engineering to rapidly deliver safe, factory-... ...RoleRadiant is seeking a driven Senior Thermal Modeling & Analysis Engineer to own...NuclearFull timeSummer workImmediate startRemote workFlexible hours$139.5k - $224.7k
...building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor,... ...development leverages modern software engineering to rapidly deliver safe, factory-... ...RoleRadiant is seeking a driven Senior Thermal-Hydraulics Engineer with expertise...NuclearFull timeSummer workImmediate startRemote workFlexible hoursWeekend work$139.5k - $196.88k
...building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor,... ...development leverages modern software engineering to rapidly deliver safe, factory-... ...RoleRadiant is seeking a Senior Nuclear Thermal-Hydraulics Engineer to lead thermal-...NuclearFull timeSummer workImmediate startRemote workFlexible hoursWeekend work- Radiant, an El Segundo-based startup building portable nuclear microreactors, seeks a Summer 2027 Materials Engineer Intern to join the team onsite. You will plan and execute materials testing, develop manufacturing processes, and help select materials for Kaleidos components...InternshipNuclearSummer internship
- Radiant, an El Segundo, CA-based startup building the world’s first portable nuclear microreactors, seeks a Senior Manager of Embedded Engineering to lead the embedded software team through the critical path to commercialization, planning and executing the embedded software...Nuclear
- Radiant is seeking a Lead Nuclear Materials Engineer to lead the nuclear materials team in developing and qualifying materials for the Kaleidos 1MWe reactor. The role requires ownership of fuel, moderators, shielding, and irradiation testing, and cross-functional collaboration...Nuclear
- Radiant, based in El Segundo, CA, is seeking a Lead Nuclear Materials Engineer to guide Radiant’s nuclear materials team in the development, testing, and qualification of materials for the Kaleidos 1MWe reactor. You will own the materials program end‑to‑end, mentor engineers...Nuclear
- ...building the world's first mass-produced, portable nuclear microreactors. The company's first reactor,... ...development leverages modern software engineering to rapidly deliver safe, factory-... ...highly motivated Licensing & Regulatory Intern to join the team. Responsibilities:...InternshipNuclearSummer workSummer internshipRemote work
- Radiant, an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors, is seeking a Marketing & Communications Intern to join the team for Summer 2027. You will draft social media content for the company brand, create press materials...InternshipNuclearSummer work
- Radiant, an El Segundo, CA-based startup building portable nuclear microreactors, seeks a Summer 2027 Electrical Engineer Intern to join the team onsite at HQ. You will assist with design, modeling, and analysis of electrical systems, support hardware testing and troubleshooting...InternshipNuclearSummer internship
- Radiant, an El Segundo, CA-based startup, seeks a Lead Nuclear Engineer to guide the nuclear design and analysis group on core physics, shielding... ..., hiring, and milestones, driving safety, reliability, portability, and performance for the Kaleidos microreactor. You will...Nuclear
- Summer 2027 Internship - Reactor Operations Engineer 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...InternshipNuclearSummer workSummer internshipRemote work
$158k - $247.28k
Pow.bio, located in El Segundo, CA, is seeking a Senior Power Systems Engineer to lead the design and validation of electrical power systems for portable nuclear microreactors. The successful candidate will collaborate across teams to ensure reliable power delivery and...NuclearFlexible hours- Summer 2027 Internship - Mechanical Engineer 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...InternshipNuclearSummer workSummer internshipRemote work
- Summer 2027 Internship - Electrical Engineer 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...InternshipNuclearSummer workSummer internshipRemote work
- ...based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt,... ...approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors...InternshipNuclearSummer workSummer internshipRemote work
$158k - $219.45k
...based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt,... ...approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors...InternshipNuclearFull timeSummer workImmediate startRemote workFlexible hours- Summer 2027 Internship - Materials Engineer 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...InternshipNuclearWork experience placementSummer workSummer internshipRemote work
- Forge Atomics is seeking an Electrical Engineering Intern/Co-op to contribute to the Ember reactor’s electrical systems, from sensing to power hardware. You’ll work directly with engineers on end-to-end design, bring-up, and testing, with mentorship and a focus on reliable...InternshipNuclear
- Forge Atomics in California seeks a Nuclear Engineering Internship/Co-op to contribute to the design and safety analysis of Ember reactor. You’ll work on core design, fuel cycle, reactivity control, and dose analysis within our simulation toolchain, supporting licensing...InternshipNuclearSummer work
- ...based in El Segundo, CA, is seeking an Engineering Manager to lead the Electronics team... ...for components of advanced nuclear microreactors. You will manage engineers and own the... ...significant influence on the future of portable nuclear power solutions. #J-18808-Ljbffr...Nuclear
$150.03k - $211.84k
...building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor,... ...development leverages modern software engineering to rapidly deliver safe, factory-... ...reactor kinetics. Basic knowledge of thermal hydraulic principles. Experience communicating...NuclearFull timeSummer workImmediate startRemote workFlexible hoursWeekend work$106.5k - $146.48k
...building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor,... ...development leverages modern software engineering to rapidly deliver safe, factory-... ...Analysis: Run coupled neutronics and thermal calculations to further understanding...NuclearFull timeSummer workImmediate startRemote workFlexible hoursWeekend work$105k - $130k
...based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt,... ...approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors...InternshipNuclearFull timeWork experience placementSummer workImmediate startRemote workFlexible hours$140.33k - $179.31k
...in-space ecosystem. About this Role As the Senior Thermal Analysis Engineer , you will serve as a key member of the vehicle engineering... ...specifically for our regular full-time employees and interns. Regular Full-Time Positions: Health & Wellness...InternshipPermanent employmentFull timeImmediate startRelocation packageFlexible hours$33 per hour
...graduate degree program. As a part of the Thermal team you will get to work on the vehicle... ...in Mechanical, Aerospace, or related Engineering discipline Completed coursework in:... ...Rate : $33.00 Housing stipend for interns relocating to the area Commuter...InternshipHourly payPermanent employmentFull timeSummer workLocal areaImmediate startRelocationRelocation packageFlexible hours- Radiant is seeking a Staff Structures Engineer in El Segundo, CA to design and develop critical structures for Kaleidos, meeting extreme... ...own risk analyses for subsystems and collaborate with cross-functional teams from our El Segundo HQ. #J-18808-Ljbffr Radiant NuclearNuclear
$158k - $219.45k
...building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor,... ...development leverages modern software engineering to rapidly deliver safe, factory-... ...Optimize loss, efficiency, and conduct thermal analysis of the inverter.Required...NuclearFull timeSummer workImmediate startRemote workFlexible hoursWeekend work
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