As a youth player, Gaete was with
Deportes La Serena. In July 2023, he ended his loan from
Colo-Colo with
Unión La Calera and switched to
San Luis de Quillota in the
Primera B until the end of the season. The next year, he was loaned to
Deportes Copiapó in the top level. After ending hos contract with Colo-Colo, Gaete returned to
Cobresal for the fourth time for the 2025 season. In January 2026, Gaete moved abroad and joined Costa Rican club
Cartaginés.
Controversies On
2019 season, Gaete joined
Colo-Colo from
Cobresal, but he left the training preseason in
Buenos Aires returning to Chile to think about his future, according to Colo-Colo. Finally he was loaned to
Deportes Santa Cruz at the
Primera B, where again he had a similar episode. On 12 August 2020, he told the reasons why left Colo-Colo, arguing he was disagreed with the money. ==International career==