Nelson returns to the Mustangs for his fourth season as an assistant coach in 2017, working with the defensive line. He also serves as the team's video coordinator.

Prior to Stevenson, Nelson was served as the assistant head coach and the defensive coordinator at West Virginia Wesleyan College for two seasons. While with the Bobcats, he assisted the head coach in all phases of the program while coaching all three linebacker positions and coordinating the defense.

While at West Virginia Wesleyan, Nelson also managed the recruiting for all defensive positions.

During the 2012 season, Nelson served as the defensive line coach at the University of Charleston, coaching all three defensive line positions. During that year, the Golden Eagles led the conference in sacks with the defense ranking second amongst all Division II schools. Nelson was also in charge of the kickoff team, which finished first in the conference in yards allowed.

From 2007-11, Nelson served as an undergraduate assistant at West Virginia University before spending a season as the defensive graduate assistant.

Nelson's coaching career began at the high school level working as the defensive coordinator at Northeast High School in Pasadena.

Nelson earned his bachelor’s degree in sport and exercise psychology from West Virginia University in 2011 and is currently working on a master’s degree in Athletic Coaching Education at WVU. He played one season of football at Frostburg State University.