· Distinguished Research Fellow, ICSI - International Computer Science Institute2015–
· Editor in Chief, Computer-Aided Design, Elsevier2011–
· Founder & CTO, Intact Solutions, Inc.1999–
· Bernard A. and Frances M. Weideman Professor, University of Wisconsin-Madison1994–2021
· Staff Research Engineer, General Motors Research1983–1994
· MS and PhD degrees in Mechanical Engineering, Cornell University
· Bachelor degrees in Mathematics and in Computer Science, NYU
· MS in Computer Science, UCLA