We are seeking a highly accomplished Principal Applied Scientist with deep expertise in large language models (LLMs)—including both text and multimodal systems—reinforcement learning, agentic AI architectures, and large-scale model training and inference optimization. This is a senior individual contributor role for a thought leader who brings together cutting-edge research excellence and strong applied instincts. You will operate at the frontier of AI science and product innovation, driving the design and deployment of next-generation AI systems at scale. A strong publication record in top-tier AI and machine learning conferences or journals is required.