He was previously the quarterbacks coach and pass game coordinator at the University of North Carolina at Chapel Hill.
[1] He was also a National Football Foundation Scholar athlete in 2003, and was inducted into the school's hall of fame in 2017.
[2] After his playing career concluded, Heckendorf was an assistant at his high school alma mater Mosinee High School in Mosinee, Wisconsin before spending time at Nebraska as a quality control coach and graduate assistant.
[4] Heckendorf was named the offensive coordinator and quarterbacks coach at Arkansas State in 2019.
[8] After initially being replaced by Major Applewhite and A. J. Milwee, Heckendorf was retained as offensive coordinator by newly hired Arkansas State head coach Butch Jones.