Racing Club de Avellaneda. joined Racing from Club Atlético Atlanta in 1923.
A left back who liked to get forward on the wing, Paternoster's clean, elegant style earned him the nickname El Marqués (The Marquis) . He was also Known as Flaco (Skinny).
His 16 match international career (1928–30) saw him win a South American Championship (1929) but finish on the losing side in both an Olympic and World Cup Final.