X-energy
X-energy designs and sells advanced high-temperature gas-cooled small modular reactors (Xe-100) and TRISO nuclear fuel for utilities and energy-intensive industries. Privately held and headquartered in Rockville, Maryland, the company is building its TRISO-X fuel manufacturing campus in East Tennessee to support commercial deployment. It provides reactor and fuel supply, licensing support, and lifecycle engineering services for grid power, industrial heat, and microreactor applications.
Open Positions at X-energy
6 open positions
Lead enterprise content management development and integration across cloud and on-premises environments, building secure, resilient ECM applications and services. The role combines Java and Python development, AWS cloud engineering, automation, infrastructure as code, and full lifecycle operations.
Engineer IV, AI & Digital Engineering will build production-ready AI-native applications, agentic workflows, and cloud platforms that accelerate nuclear-reactor engineering and deployment. The role offers multiple specialization paths across agentic AI, full-stack development, data integration, and platform infrastructure.
Software Engineer III building production-ready AI-native applications, agentic workflows, data platforms, and cloud infrastructure for X-energy’s Xe-100 nuclear reactor development programs. The role offers multiple specialization paths spanning full-stack development, agentic AI, engineering-data integration, and platform infrastructure.
Lead the development of production-ready AI-native applications, agentic workflows, and cloud platforms accelerating nuclear reactor engineering at X-energy. The role spans AI applications, engineering data integration, and cloud-native infrastructure across multiple specialization tracks.
AI Platform Engineer responsible for building and operating the cloud infrastructure, CI/CD systems, and release automation behind X-energy’s AI-native application platform. The role emphasizes AWS, Terraform, containerization, observability, reliability, and hybrid collaboration in Rockville/Gaithersburg, Maryland.
Software Engineer IV contributing to X-energy’s AI Solutions Tiger Team, rapidly developing production-ready AI systems that improve nuclear reactor engineering workflows, knowledge management, and decision support. The role may focus on frontend development, agentic AI, data integration, ML operations, or technical product management.