Sebastian Carrasco joined the Golden Gators coaching staff for the 2019 season. The veteran coach possesses several licenses, most notably a USSF "A" License, a USSF "Y" License, and an NCAA Director of Coaching License.  Carrasco joins SF State from Whittier College, where he was an assistant with the women's program in 2018. He also currently serves as manager of A.S. Los Angeles of the National Premier Soccer League. From 2005-16, Carrasco was the strength and conditioning coach at Division I Cal State Long Beach, where he and Osório spent three seasons working together. The Beach claimed three consecutive regular-season championships from 2006-08, won the Big West Tournament title in 2010 and 2011, and advanced to the NCAA Tournament four times, including an appearance in the Elite Eight in 2011. From 2012-14, Carrasco also served as a strength and conditioning coach and assistant coach at Cerritos College, with the Falcons capturing a state championship in 2014.

On the club scene, Carrasco has years of coaching experience. He served as the director of coaching at Boca Juniors Los Angeles from 2015-17 and produced a State Cup finalist in 2017. From 2008-15, he served as a coach at Beach Futbol Club, and he was a strength and conditioning coach for Chivas USA Futbol Academy from 2011-12. He also had stins with Santa Clarita United and LA United Soccer Club.

From 1984-98, the Argentina native played for several club programs. He spent the 1999 season as a defender at Raritan Valley College and played semi-pro in New York in 1999 and 2000 for Asoligas, a team that won the Manolo Rodriguez Cup and the Continente Americano Cup. From 1998 to 2001, the midfielder and defender competed in the Argentina Soccer League in New York.