At international level, he features for Bolivia. His main role on the pitch is Forward. He measures 176cm in height and weighs 75kg. His stronger foot is Left. His estimated market valuation currently stands at 650K €.

His latest transfer saw him join Bolivar from Colo Colo U21 via on 2023-06-20.

During the FIFA World Cup qualification (CONMEBOL) 2026 campaign, Ervin vaca made 7 appearances, scoring 1 goals and adding 0 assists. He averaged 0.1 goals per match from 1 shots, with 1 on target.