At the international level, he represents Bolivia. He plays primarily as a Forward. He stands at 176cm tall and weighs 75kg. His current market value is estimated at 600K €.

His most recent move was a from Colo Colo U21 to Bolivar on 2023-06-20.

In the FIFA World Cup qualification (CONMEBOL) 2026 season, Ervin vaca scored 1 goals and provided 0 assists across 7 appearances, averaging 0.1 goals per game with 1 shots attempted and 1 on target.