Andés is originally from Bogotá, Colombia, where he began his career consulting for tropical cow-calf operations and grazing dairy farms. He managed a high-pedigree herd in Canada and was a veterinarian in MSU's Large Dairy Internship Program at a large dairy herd near Grand Rapids. Following the internship, Andres started a master's degree program focused on mastitis and milk quality while continuing his doctoral degree in metabolic and immune adaptations of dairy cows.