Jon began his coaching career as a graduate assistant at Virginia (1981-82) and Maryland (1983), and then served as an assistant coach at Vanderbilt (1984-85), Marshall (1986-87), Kansas State (1988), SMU (1989-94) and Oklahoma (1995). At SMU, Jon was the defensive backs coach in 1989 before being promoted to defensive coordinator in 1990. At Ohio State, he was the defensive backs coach from 1996-1999 before being elevated to the defensive coordinator post in 2000.  
From 2002 - 2007, Jon was the Associate Head Coach / Defensive Coordinator At Georgia Tech.  And most recently, during the 2008 and 2009 seasons, he was the Assistant Head Coach Defense at the University of Notre Dame. 

Jon is a graduate of Virginia. He lettered three years as a defensive back for the Cavaliers and earned the team's John Acree Memorial Football Trophy and Kevin Bowie Award.

Jon and his wife Dori have three sons, Zach, Matt and Luke.