Miller returns to Long Beach State for the 2015 season as a volunteer assistant coach. The former catcher played two seasons with the Dirtbags, appearing five times in 2012 and making 24 appearances (including 21 starts) as a senior in 2013.

Before donning the black and gold, Miller played two seasons at his hometown Sacramento City College, making a pair of super regional appearances. He is a product of Elk Grove High School where he was a two-year letter winner in football and a four-year letter winner in baseball, helping Elk Grove to two section championships while setting the school record in doubles.