Born in Cutral Co, Argentina, Vega was with the city team, Petrolero Argentino, ACDC Patagonia and Boca Juniors before joining the Vélez Sarsfield youth system.[1][2] Having trained with the first team since 2020,[3] he signed his first professional contract in 2021 with them. In August of the same year, he was loaned to Portuguese club Estoril on a deal for a year with an option to buy,[4] making appearances for the under-23 team and winning the 2021–2022 Liga Revelação.[5]
Despite Vega was promoted to the Estoril first team,[6] he returned to Vélez Sarsfield[7] and was subsequently loaned to Arsenal de Sarandí for the 2023 season.[8] For the 2024 season, he joined on loan to Huachipato in the Chilean top division.[9] At the end of the year, he ended his contract with Vélez Sarsfield.[10]
In 2025, Vega returned to his country of birth and joined Alvarado.[11]
Personal life
Vega is of Chilean descent since his paternal grandparents are Chilean, being eligible to represent both Argentina and Chile.[2][1] He got the Chilean nationality in 2023.[12]