David Culler joined Google after 31 years at the University of California Berkeley pioneering extreme networked systems, from laying the foundations of clusters, Internet services and planetary scale systems to making low power embedded wireless sensor networks a reality. His work, represented in over 300 publications, 10 test-of-time awards, numerous best papers, 34 patents and the seminal textbook on parallel computer architecture, is reflected in his role in the National Academy of Engineering, where he serves on the Computer Science and Telecommunications Board and on several national studies. His academic career is punctuated with industrial phases, including Sun Microsystems, founding director of Intel Research Berkeley, and co-founding Arch Rock, now part of CISCO, and administrative roles, including Chair of EECS and founding Dean of the Berkeley Division of Data Sciences. His recent work brings network systems to the building environment to address sustainability and resilience. David is an ACM Fellow, IEEE Fellow, recipient of the SIGMOBILE Outstanding Contribution Award and the Okawa Prize.