Law clerk, ACLU National Prison Project, Washington, D.C., 1986-1987
Assistant defender, Defender Association of Philadelphia [Pennsylvania], 1987-1990
Assistant federal public defender, Eastern District of Pennsylvania, 1990-1993
Private practice, Philadelphia, Pennsylvania, 1993-2006
Nominated to U.S. District Court for the Eastern District of Pennsylvania, November 27, 2012; no Senate vote
Nominated to U.S. Court of Appeals for the Third Circuit, November 12, 2014; no Senate vote
U.S. Magistrate Judge, U.S. District Court, Eastern District of Pennsylvania, 2006-2013