He previously served as the defensive backs coach of the Cleveland Browns of the National Football League (NFL).

Walker served as the head football coach at New Mexico State University from 2009 to 2012, compiling a record of 10–41 in four seasons.

Born in Los Angeles, Walker graduated from John Muir High School of Pasadena, California in 1978.

Walker attended and played for Pasadena City College for two years before transferring to the University of Minnesota, where he was a two-year starter.

[2] Walker played for the Canadian Football League's Edmonton Eskimos in 1982 and the USFL's Oakland Invaders in 1984 and Arizona Outlaws in 1985.

[4][5] The Bruins faced Mountain West Conference champion Brigham Young University, a team they defeated earlier in the season.

On January 22, 2013, it was reported that Walker would leave New Mexico State in favor of the defensive backs job with the Jacksonville Jaguars.