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96 jobs matching your search
Showing 61 to 80 of 96
Nuclear Engineer, Core Physics
About the Role Responsibilities & Duties: - Collect testing requirements, objectives, and success criteria from nuclear engineers. - Develop procedures that satisfy test requirements within the operational bounds of Kaleidos. - Perform various reactor physics calculations
Engineering
Prep for this interviewSenior Nuclear Engineer
About the Role Radiant is seeking a driven Senior Nuclear Engineer to join our team! You will own modeling methods and reactor physics calculations of neutronics parameters such as reactivity, kinetics parameters, and energy deposition distributions used within our cutting-edge
Senior Thermal Modeling & Analysis Engineer
About the Role Radiant is seeking a driven Senior Thermal Modeling & Analysis Engineer to own high-fidelity CFD and thermal modeling for the Kaleidos microreactor. You will analyze heat generation and transport, high-temperature gas flow, and thermal interactions across reactor
Engineering
Prep for this interviewSenior Thermal-Hydraulics Engineer
About the Role Radiant is seeking a driven Senior Thermal-Hydraulics Engineer with expertise in CFD and thermal FEA modeling. You will design, develop and implement simulations for the Kaleidos microreactor to ensure high fidelity, reliability, and safety of our systems. You’ll
Engineering
Prep for this interviewSenior Thermal Modeling Analyst
About the Role Radiant is seeking a driven Senior Thermal Modeling Analyst with expertise in CFD and thermal FEA modeling. You will design, develop and implement simulations for the Kaleidos microreactor to ensure high fidelity, reliability, and safety of our systems. You’ll wor
Senior Nuclear Thermal-Hydraulics Engineer
About the Role Responsibilities & Duties - Own and execute thermal-hydraulics analysis to evaluate design and safety performance of Kaleidos reactor systems under normal and accident conditions. - Develop and apply coupled physics models integrating thermal-hydraulics with n
Risk & Compliance Lead
About the Role Radiant is scaling fast - expanding factory operations, standing up multi-entity structures, and taking on both government and commercial deployments. This role will manage our liability exposure in a centralized manner - owning programs across all teams and buildi
Structured Finance Manager
About the Role Radiant is executing a significant, multi-year capital program across a range of financing vehicles to support our manufacturing scale up, R&D and internal CapEx. As Structured Finance Manager, you will own designing and executing ITC (Investment Tax Credits) monet
Finance & Legal
Prep for this interviewRegulatory Program Manager
About the Role Radiant is seeking an experienced Regulatory Program Manager who loves to think outside the box and challenge convention; in this role you will lead the authorization process for reactor deployment with our military partners. You will be responsible for regulatory
Senior Test Engineer, Mechanical/Fluids
As part of a small, passionate, and accomplished team of test engineers, you will help drive test operations to meet Radiant’s requirements in a fast-paced production environment. You will directly contribute to test operations by assisting with test planning and execution, risk
Engineering
Prep for this interviewTest Engineer, Mechanical/Fluids
As part of a small, passionate, and accomplished team of test engineers, you will help drive test operations to meet Radiant’s requirements in a fast-paced production environment. You will directly contribute to test operations by assisting with test planning and execution, risk
Engineering
Prep for this interviewSenior Manager, Power Systems
About the Role Radiant is seeking a talented Senior Manager, Power Systems, to build and lead the team that designs, models, and validates electrical power systems for our nuclear microreactor platform. You will manage a team of power systems and power electronics engineers, set
Senior Equipment Engineer
About the Role Radiant is seeking a highly motivated Senior Equipment Engineer who will be working closely with design engineers and the manufacturing team to develop and innovate custom equipment to build and assemble our microreactor system. You will be part of the early team
Senior Manager, Embedded Systems Engineering
About the Role Radiant is seeking a Senior Manager of Embedded Engineering to lead the embedded software engineering team through the critical path to commercialization, planning and executing the embedded software architecture for I&C systems with a direct line to Kaleidos' 202
Investor Relations Director
About the Role We recently closed a oversubscribed $350M Series D at a $1.8B valuation, backed by Andreesen Horowitz, DCVC, Boost Ventures, Draper Associates, Chevron Tech Ventures, Founders Fund, IQT, LM Ventures and others. We’ve grown to north of 200 people this year and we ar
Senior Mechanical Engineer, Mechanisms
About the Role Radiant is seeking a highly motivated Senior Mechanical Engineer, Mechanisms to design and develop critical mechanisms within Kaleidos. You will solve unique challenges creating efficient and reliable mechanisms that control reactivity or actuate critical safety f
Engineering
Prep for this interviewPrincipal Electrical Engineer, Integration & Test
About the Role Radiant is seeking a Principal Electrical Engineer to lead the electrical system architecture and test infrastructure for Kaleidos, our commercial microreactor targeted for deployment in 2028. You will own end-to-end electrical integration, from architecture and r
Engineering
Prep for this interviewMedia Relations Director
About the Role We're looking for a Media Relations Director to own Radiant's external media presence—from podcast bookings and journalist relationships to investor amplification and executive communications. This role is critical: despite Radiant having more substance, competitor
Senior Mechanisms Engineer
About the Role Radiant is seeking a highly motivated Senior Mechanisms Engineer to design and develop critical mechanisms within Kaleidos. You will solve unique challenges creating efficient and reliable mechanisms that control reactivity or actuate critical safety features. You
Senior Technical Recruiter
Radiant is seeking a bold, driven, and hands-on Senior Technical Recruiter to build and scale a world-class team in a high-growth, startup environment. You will own the full-cycle recruitment process—from intake and sourcing strategy to closing top-tier candidates—while serving a
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