David K. Rensin is a Senior Director of Engineering at Google where he serves on a small team of technical advisers to Alphabet’s CFO. Dave provides guidance on the appropriate allocation of Google’s capital to its various businesses and long-term technical investments. Prior to that, Dave founded Customer Reliability Engineering (CRE) and also ran Google’s global network capacity planning. He has more than 25 years of experience designing and delivering planet-scale cloud and mobile products. Prior to joining Google, Dave worked at Amazon on their classified (now declassified) C2S project. As an entrepreneur, he has co-founded and sold several businesses including one (Riverbed Technologies) for more than $1 billion, and has served as an officer in two publicly traded companies (Omnisky and Aether). He is also a bestselling author and editor with 16 US patents. Dave earned a degree in Statistics from the University of Maryland.