· Professor Emeritus, Professor in the Graduate School, University of California, Berkeley2024–
· Associate Department Chair, EECS Department, University of California, Berkeley2017–2019
· Associate Dean for Research, College of Engineering, University of California, Berkeley2012–2017
· Deputy Director for Science, The Molecular Foundry, Lawrence Berkeley National Laboratory2004–2012
· Senior Research Scientist, Lawrence Berkeley National Laboratory1993–2024
· Professor of Electrical Engineering and Computer Sciences, University of California, Berkeley1993–2024
· Member of Technical Staff / Department Head, AT&T Bell Laboratories1980–1993