Harikesh Nair is Senior Director of Data Science and Engineering at Google. He leads engineering and data science for media effectiveness measurement for Google’s performance and brand business globally. This work powers planning, buying, reporting and automation across Google’s $250B+ ads business, including Search, YouTube and Display. Previously, he was the Jonathan B. Lovelace Professor of Marketing at Stanford GSB; Faculty Director of the Stanford Computational Marketing Lab; and Chief Business Strategy Scientist at JD.com.