Kairos Power is seeking a Senior Mechanical Engineer, Test with deep expertise in designing, building, and operating complex systems that integrate mechanical, hydraulic, pneumatic, and electrical components. This role will focus on the development of test systems that support the advancement of Kairos Power's nuclear reactor subsystems. The successful candidate will contribute to both conceptual and detailed design efforts across multiple engineering domains and must be proficient in mechanical CAD with a strong understanding of physics fundamentals. We're looking for a collaborative, hands-on, and detail-oriented individual with a strong systems mindset and leadership experience.