07/15-present: Consulting Chief Architect, Couchbase, Inc., Santa Clara, CA.
07/08-present: Distinguished Professor / Donald Bren Professor of Computer and Information Sciences, Computer Science Department, University of California, Irvine.
11/01-7/08: Senior Engineering Director, BEA Systems, Inc. (later Oracle Corporation), San Jose, CA. (Technical Director 11/01-8/05; Senior Engineering Director 8/05-5/08; Architect, 6/08-7/08.)
12/07-12/08: Adjunct Professor, Computer Science Department, University of Southern California.
4/07-6-07: Visiting Lecturer (part time), Computer Science Department, Stanford University.
3/00-11/01: Fellow, Propel Software Corporation, Santa Clara, CA.
5/95-3/00: Research Staff Member/Manager, IBM Almaden Research Center, San Jose, California.
1/99-5/99: Stonebraker Visiting Fellow (part time), Computer Science Division, EECS Department, UC Berkeley.
8/83-5/95: Professor, Computer Sciences Department, University of Wisconsin-Madison. (Assistant Professor through 8/88; Associate Professor through 8/91; Professor from 8/91 onwards.)
8/93-7/94: Visiting Scientist, IBM Almaden Research Center, San Jose, California.
6/89-8/89: Visiting Scientist, IBM Almaden Research Center, San Jose, California.