[2] Son of railman, Moacir ran away from home and lived for more than ten years in an orphanage in Osasco.

Recommended by a friend, he went to CR Flamengo to be part of the youth teams, where he started to live in the club dorms.

After his time as a junior player, Moacir highlighted and was selected to be part of the principal team of CR Flamengo.

Later in his career, he also played for Flamengo, River Plate of Argentina, Peñarol of Uruguay, and Everest and Barcelona of Ecuador.

[2] He was part of the 1958 FIFA World Cup winning squad, but he did not play during the tournament,[3] mainly serving as reserve for Didi.