· Chair, Department of Bioengineering, University of California, Berkeley2004–2009
· Co-Director, Berkeley Sensor & Actuator Center (BSAC)1998–
· Associate Professor, Bioengineering and Mechanical Engineering, University of California, Berkeley1998–2003
· Assistant Professor, Mechanical Engineering, University of California, Berkeley1992–1998
· Professor of Bioengineering and Mechanical Engineering, University of California, Berkeley1992–
· Software Engineer, Institute for Non-Linear Science, University of California, San Diego1986–1992
· Ph.D., Applied Mechanics, University of California, San Diego1986–1990
· Research Scientist, Science Applications International Corporation (SAIC)1984–1992
· Technical Staff, Jet Propulsion Laboratory1983–1984
· MS, Chemical Engineering, California Institute of Technology1981–1983
· BS, Chemical Engineering, California Institute of Technology1979–1983
· BA, Chemistry, Occidental College1976–1981