In this role, you will take a comprehensive approach to building experiences powered by cutting-edge models, starting from the on-device software all the way through the entire machine learning lifecycle. Responsibilities will range from creating and curating data, training and evaluating, and fine-tuning models, to building the intelligent software subsystems running on-device that work in tandem with the models. As a creative problem solver who excels when faced with new ambiguous problems, you will help us shape our roadmap and solve significant technical challenges in new spaces!An ideal candidate for this role will have industry experience building complex iOS or macOS software applications, research or hands-on experience working with and training Large Language Models (LLMs), along with a proven track record of shipping products and experiences. Knowledge of other contemporary modeling problems (e.g. Conversational Agents, Reinforcement Learning, Autonomous Systems, Human Preference Learning) is a plus. You will work across teams and organizations spanning a variety of disciplines, collaborating closely with machine learning researchers, software engineers, hardware and design teams.