Jeff Dean joined Google in 1999 and is currently a senior fellow and SVP for Google AI. He oversees Google's research division and health division. His teams are working on systems for speech recognition, computer vision, language understanding, and other machine-learning tasks. He has co-designed/implemented many generations of Google's crawling, indexing, and query-serving systems and co-designed/implemented major pieces of Google's early advertising systems. He is a co-designer and co-implementor of Google's distributed computing infrastructure, including the MapReduce, BigTable, and Spanner systems, protocol buffers, the open-source TensorFlow system for machine learning, and a variety of internal and external libraries and developer tools. He received a PhD in computer science from the University of Washington in 1996. He is a member of the National Academy of Engineering, a fellow of the Association for Computing Machinery (ACM), the American Association for the Advancement of Sciences (AAAS), and a winner of the ACM Prize in Computing.