September 2007 - present: Department of Mathematics at the University of Denver. Assistant Professor 2007-2011; Associate Professor 2011 - 2016; Full Professor 2016 - present.

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. Honors thesis on "The prime number theorem." My honors thesis advisor was Richard E. Borcherds.