[1][5] In November 2018, he made his professional debut during a Primera División draw away to Racing Club; Julio César Falcioni substituted him on after seventy-eight minutes for Luciano Gómez.

[6] Galoppo's first start came in the succeeding March against Defensa y Justicia, which preceded him featuring four times off the bench in 2019–20.

[7] Galoppo then scored five goals in twelve appearances, one in each of the club's five away games, in the 2020 Copa de la Liga Profesional as they reached the final; where they'd lose out to his ex-club Boca Juniors.

[1][8] On 26 July 2022, Galoppo joined Campeonato Brasileiro Série A club São Paulo, signing a contract until June 2027.

[13] Galoppo also struggled with injuries during the 2024 campaign, also having limited playing time under head coach Luis Zubeldía.