Guerino was born in Sao Paulo, Brazil on March 24, 1950. After playing for Atletico Mineiro and Nacional, he arrived in Greece, joining PAOK Thessaloniki, in 1974. He was a valuable member of the 1976 team that won the championship for the first time in PAOK's history.
Guerino scored a total of 75 Alpha Ethniki goals in his career. He has settled in Greece and acquired Greek citizenship.