September 2007 and onwards: Department of Mathematics at the University of Denver.

October 2004 - August 2007: FWF Postdoctoral Fellowship at the Kurt Gödel Research Center for Mathematical Logic at the University of Vienna. My employer was Sy-David Friedman.

August 2001 - May 2004: NSF VIGRE S. Chowla Research Assistant Professor in the Mathematics Department at The Pennsylvania State University. My mentor was Stephen G. Simpson

July 2001: Ph.D. in mathematics from the University of Minnesota. My thesis advisor was Karel Prikry.

May 1996: B.A. in mathematics with High Honors from U.C. Berkeley.