Senior Mechanical Design Engineer - Reactor Module
Oklo·Santa Clara, CA or Remote·Remote·Posted 13 January 2026
About the role
Thanks for your interest in Oklo! We are searching for an experienced Mechanical Design Engineer to join our team. We are looking to fill this position immediately. Level (Engineer III / Senior / Staff) will be determined by experience. Position Description As a Senior Mechanical Design Engineer at Oklo, you will play a central role in designing the critical hardware that enables our advanced fast reactors to operate safely and reliably. This includes technical ownership of large, multi-component weldments and assemblies that comprise the reactor module within our Aurora powerhouses—ranging from the reactor vessel to various internal support structures and primary coolant flow elements. You will be responsible for advancing these components from conceptual design through detailed design and fabrication readiness, ensuring that every element is engineered for performance, manufacturability, industrial Code compliance, and integration into Oklo’s broader reactor system. You may also be tasked with leading early pre-conceptual design efforts for Oklo's future Powerhouse reactor products. Your work will require deep engagement with cross-functional teams including structural analysts,…
This is a summary of the advert. The full description and the application are on Oklo's careers site.
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