Dr. Clark is Executive Associate Dean of the College of Chemical Engineering at UC Berkeley. As Professor of Chemical Engineering, he works in the field of biochemical engineering, with particular emphasis on enzyme technology and bioactive materials, extremophiles, cell culture, and metabolic flux analysis. His B.S. degree is from the University of Vermont and his Ph.D. from the California Institute of Technology.

His research honors include the Presidential Young Investigator Award; the Amgen Award in Biochemical Engineering; the International Enzyme Engineering Award; the Food, Pharmaceutical and Bioengineering Award from the American Institute of Chemical Engineers; the NorCal Chemical Engineering Excellence Award-Industrial Research; and the Marvin J. Johnson Award in Microbial and Biochemical Technology from the American Chemical Society. Teaching recognition includes the Most Appreciated Faculty Member award from the AIChE student chapter at UC Berkeley, and the Department of Chemical Engineering Teaching Award. Dr. Clark is a Fellow of the American Institute of Medical and Biomedical Engineers and the American Association for the Advancement of Science.

Since 1996, he has served as editor-in-chief for the publication Biotechnology and Bioengineering.