Before coming to New Mexico State, Rubio spent seven seasons as head coach at Quincy University in Quincy, Ill. He guided the Hawks to 13 wins in 2008 and increased the teams win total in his first three years. He also led the Hawks to a 19-14 record in 2007, their highest win total since 1998.
Rubio was the assistant head coach of the women's volleyball team at the University of Oregon (2002-03). He worked as the program's recruiting coordinator and camp director. He also worked with the setters, middle hitters and liberos.
Rubio has also worked as a first assistant at Boise State University from 1998-2001. There he picked up experience with training and teaching the setters, recruiting, scouting, running of summer camps and community relations, and also scheduling.
He was a volunteer assistant at the University of Southern California in 1996-1998, where he also took on similar responsibilities.
Rubio graduated from Cal-State Northridge in 1999 with a bachelor's degree in kinesiology.