Research Engineer / Scientist, Post-training & Reinforcement Learning - London

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Hybrid London ABOUT H H exists to push the boundaries of superintelligence with agentic AI. By automating complex, multi-step tasks typically performed by humans, AI agents will help unlock full human potential. H is hiring the world’s best AI talent, seeking those who are dedicated as much to building safely and responsibly as to advancing disruptive agentic capabilities. We promote a mindset of openness, learning, and collaboration, where everyone has something to contribute. ABOUT THE RESEARCH & MODELS TEAM The Models team builds the foundational models that power our cutting-edge agentic…