He spent his entire career with the franchise, including when it was called the Leones del Caracas, pitching in the league until the 1955–1956 season.

On the day after Christmas, Zuloaga hurled the first important single game in Venezuelan league history, a one-hit 5–0 masterpiece for Cervecería against Max Surkont and the Patriotas de Venezuela club, during which he permitted a leadoff single, struck out 10, walked two, and did not allowed a runner to reach second base.

In Game 5, Zuloaga won a complete-game pitching duel against Puerto Rico's Alonzo Perry and the Indios de Mayagüez by a score of 5–3.

[10] Besides baseball, Zuloaga participated in numerous activities including soccer, volleyball, softball, track and field, basketball, golf and was a member of various multi-cultural clubs and mission groups.

Former Criollitos ballplayers have played in professional baseball, including big leaguers Bobby Abreu, Cris Colón, Bo Díaz, Andrés Galarraga, Freddy García, Carlos Hernández, Pablo Sandoval, Luis Sojo and Omar Vizquel.

[11] In 2009, Zuloaga gained induction into the Venezuelan Baseball Hall of Fame and Museum as part of their 7th class.