Browse Jobs
Browse fresh roles from company career pages, then filter by keyword, location, salary, skills, remote scope, and more. Each listing links back to the employer-controlled apply path when available.
159 jobs match your filters
2mo
Indirect Procurement Manager
Radiant
About Radiant 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 power is needed and run for up to 5
El Segundo, CA
remoteFull-timeEasy Apply
2mo
R
Principal Software Engineer: Cloud Platform
Radiant
Job Role As a Principal Software Engineer at Radiant, you’ll be a hands-on technical leader, driving the design and development of our most critical systems, including our GPU orchestration layer, inference-serving infrastructure, and core platform APIs. You’ll set the standard
London
hybridFull-timeEasy Apply
2mo
Principal Turbomachinery Engineer
Radiant
About Radiant 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 power is needed and run for up to 5
El Segundo, CA$201K - $314K
remoteFull-timeEasy Apply
2mo
ERP Implementation Specialist
Radiant
About Radiant 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 power is needed and run for up to 5
El Segundo, CA
remoteFull-timeEasy Apply
3mo
R
Senior Product Manager
Radiant
As a Senior Product Manager you will be responsible for leading the development of Radiant platform, leading product strategy, roadmap, and execution for a platform that balances the needs of customer deployability, operational reliability, and cutting-edge AI workload support.
London
hybridFull-timeEasy Apply
3mo
R
Principal Backend Software Engineer - Auth & Identity
Radiant
Company Overview: Radiant is redefining how AI infrastructure is built. We design and operate AI-native cloud platforms engineered for sovereignty, performance, and scale. Our infrastructure powers GPU-native workloads, multi-tenant control planes, and high-performance AI syste
London
hybridFull-timeEasy Apply
3mo
Build Engineer, Turbomachinery
Radiant
About Radiant 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 power is needed and run for up to 5
El Segundo, CA$74K - $130K
remoteFull-timeEasy Apply
3mo
Senior Software Engineer, Applications
Radiant
About Radiant 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 power is needed and run for up to 5
El Segundo, CA$158K - $247K
remoteFull-timeEasy Apply
3mo
R
Senior Backend Software Engineer - Backend Systems
Radiant
About the Role: As a Senior Software Engineer at Radiant, you’ll be a hands-on technical leader, driving the design and development of our most critical systems, including our GPU orchestration layer, inference-serving infrastructure, and core platform APIs. You’ll set the stan
London
hybridFull-timeEasy Apply
3mo
Senior Thermal Modeling Analyst
Radiant
About Radiant 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 power is needed and run for up to 5
El Segundo, CA$140K - $225K
remoteFull-timeEasy Apply
3mo
Senior Thermal-Hydraulics Engineer
Radiant
About Radiant 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 power is needed and run for up to 5
El Segundo, CA$140K - $225K
remoteFull-timeEasy Apply
3mo
Senior Controls Systems Engineer
Radiant
About Radiant 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 power is needed and run for up to 5
El Segundo, CA
remoteFull-timeEasy Apply
3mo
Senior Thermal Engineer
Radiant
About Radiant 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 power is needed and run for up to 5
El Segundo, CA$140K - $225K
remoteFull-timeEasy Apply
3mo
Senior Thermal Modeling Engineer
Radiant
About Radiant 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 power is needed and run for up to 5
El Segundo, CA$140K - $225K
remoteFull-timeEasy Apply
3mo
Senior Thermal Analyst
Radiant
About Radiant 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 power is needed and run for up to 5
El Segundo, CA$140K - $225K
remoteFull-timeEasy Apply
3mo
R
Infrastructure Site Reliability Engineer
Radiant
About Radiant Radiant is redefining how AI infrastructure is built. We design and operate AI-native cloud platforms engineered for sovereignty, performance, and scale. Our infrastructure powers GPU-native workloads, multi-tenant control planes, and high-performance AI systems d
Gloucestershire
remoteFull-timeEasy Apply
3mo
R
Senior Network Engineer
Radiant
Company Overview: Radiant is redefining how AI infrastructure is built. We design and operate AI-native cloud platforms engineered for sovereignty, performance, and scale. Our infrastructure powers GPU-native workloads, multi-tenant control planes, and high-performance AI syste
Gloucestershire
remoteFull-timeEasy Apply
3mo
Principal Software Engineer, HPC DevOps
Radiant
About Radiant 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 power is needed and run for up to 5
El Segundo, CA
remoteFull-timeEasy Apply
3mo
IT Help Desk Associate
Radiant
About Radiant 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 power is needed and run for up to 5
El Segundo, CA
remoteFull-timeEasy Apply
3mo
R
Senior Backend Software Engineer - Core Services
Radiant
About Radiant We’re looking for a Senior Software Engineer with strong experience in Golang and Kubernetes to join our core product team. In this role, you'll design and build high-performance, cloud-native back-end systems and scalable APIs to support AI workloads, including LL
London
hybridFull-timeEasy Apply
3mo
Engineering Manager, Electronics
Radiant
About Radiant 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 power is needed and run for up to 5
El Segundo, CA
remoteFull-timeEasy Apply
4mo
Senior Reactor Operations Engineer
Radiant
About Radiant 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 power is needed and run for up to 5
El Segundo, CA$134K - $164K
remoteFull-timeEasy Apply
4mo
Senior Power Electronics Engineer
Radiant
About Radiant 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 power is needed and run for up to 5
El Segundo, CA
remoteFull-timeEasy Apply
4mo
Lead Nuclear Engineer
Radiant
About Radiant 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 power is needed and run for up to 5
El Segundo, CA$141K - $237K
remoteFull-timeEasy Apply
4mo
Construction Manager
Radiant
About Radiant 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 power is needed and run for up to 5
Oak Ridge, TN$115K - $191K
onsiteFull-timeEasy Apply