Carrillo serves as the CEO of Metro MLS, which serves various regions throughout Wisconsin. He also serves on the CMLS Board of Directors. Carrillo joined the Northern Nevada Regional MLS as an information technology director more than two decades ago and served as CEO of CRIS Regional MLS in northeast Ohio before becoming CEO of Metro MLS. He is a recipient of the Peter Shuttleworth MLS Executive Award of Excellence and co-founder of MLS Aligned.