Entering the 2022 season, Kellan Wilson is in his fifth year as an assistant coach for the Titans.

Wilson spent four seasons (2012-15) as a volunteer assistant with the Cal State Fullerton women's program working primarily with the Titan goalkeepers.

Wilson was part of a historic four-year (2012-15) stretch of Cal State Fullerton women's soccer. During his time with the Titans, Fullerton won three Big West Conference regular season championships (2012, 2014, 2015), three Big West Tournament titles (2013, 2014, 2015) and made three NCAA Tournament appearances (2013, 2014, 2015), totaling a 44-27-12 (.602) overall record and a 22-7-4 (.727) mark in the Big West Conference.

Wilson tutored Big West Conference Goalkeepers of the Year Lindsey Maricic (2013) and Jennifer Stuart as well as Big West Tournament MVP Katie Pulliam (2013).

He served on the US Soccer National Training Staff in 2016 and 2017. He was responsible for training the goalkeepers, recruiting, campus visits and building alumni relations.

Wilson also spent the past two seasons, (2016-18) as an assistant coach for the Saint Mary's soccer program.

Wilson also spent three years playing collegiate soccer at Saint Mary's from 1999-2001. Wilson's playing career also included professional stints overseas in Germany with VFL Osnabruck (2005-08). From 2010-11, he played in Finland with Helsinki IFK helping the latter to the championship of the Finnish 2nd Division. He came back to the states to play with the San Francisco Seals in the USL's Premier Development League in 2008-09 where he stepped away from his spot in net to lead the team in goals.