After graduating from Centenary College Coach Santiago turned his baseball career towards coaching and became an assistant coach at Centenary College from 2007-2009 before moving back to the Pacific Northwest where he became an assistant coach under legendary Coach Mark Yoshino at Bellevue CC from 2009-2012. Coach Santiago then became the Hitting Coach at Pierce College from 2012-2014 and from 2014-2016 was the Assistant Coach at Edmonds CC.

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Coach Santiago has coached at the select level with Rijo Athletics, Baden, Easton and ProPlayer. He also has several years of college level experience coaching at Pierce CC, Bellevue CC,  Edmonds CC.and at Centenary College.