Prior to joining the State Department in 2010, Katz had several leadership roles in the U.S. Congress. From 2007-10 Katz served as the staff director of the Europe Subcommittee of the House Committee on Foreign Affairs. From 2003-06 he was the minority staff director for the Europe and Emerging Threats Subcommittee of this Committee. From 1999-2006 he was the legislative director and senior foreign policy advisor for Congressman Robert Wexler (D-FL). Katz was instrumental in the creation and leadership of the Congressional Caucus on U.S.-Turkish Relations and Turkish Americans, the Congressional Taiwan Caucus, the U.S.-Kazakhstan Interparliamentary Friendship Group, the Congressional Indonesia Caucus, and the Congressional Study Group on Turkey.
Earlier in his career, Katz helped to lead several congressional campaigns. He received a bachelor's in speech communications from Syracuse University in 1994.