Miller enlisted with the state police in 1984 and became a member of fifty-sixth graduating class of the Pennsylvania State Police Academy in Hershey, Pennsylvania. He then moved through the ranks, attaining: Corporal in 1988, Sergeant in 1990, Lieutenant in 1993, Captain in 1995, and Major in January 2002.[2]
Miller retired from the PSP on August 8, 2008. Command was temporarily transferred to Lt. Colonel Frank Pawlowski.[5]
National Football League
Following his career with the Pennsylvania State Police, Miller accepted a position with the National Football League (NFL). He served as the league's director of strategic security, a newly created position, from 2008 to 2012. Miller focused on policing fan behavior, stadium security, even cheating by teams.[6] In 2012 he was promoted to senior vice president for security, a position he held until his resignation in 2016.[7]
In September 2018, Miller became the vice president of security for the Kansas City Chiefs.[8]