Bello served as in-house counsel for MasTec, Inc. and as a homicide prosecutor in Miami Dade County. He is a board member of the Cuban American Bar Association, the Latin Builders Association and Legal Services of Greater Miami. He is an active member of the Kiwanis Club of Little Havana and chairs several Carnaval Miami events. He was selected as a fellow of the Florida Bar’s Leadership Academy and was appointed to the Miami-Dade County school board’s committee on professional education.