Gabriel Barros scored his first professional goal on 26 July 2020, netting his team's third in a 3–1 away success over Santo André.[3] On 3 September, he renewed his contract until 2023.[4]
Flamengo (loan)
On 16 October 2020, Gabriel Barros joined Flamengo and was initially assigned to the under-20 team.[5] He made his first team debut for Fla the following 3 March, replacing Thiago Fernandes late in a 1–0 Campeonato Carioca away win over Nova Iguaçu.[6]
On 2 December 2021, after four first team appearances, Gabriel Barros returned to Ituano after Flamengo opted to not exercise his buyout clause.[7]
Breakthrough
Upon returning, Gabriel Barros was regularly used by Ituano during the 2022 season, being one of the spotlights of the club as they narrowly missed out promotion in the 2022 Série B.[8]
Internacional
On 11 April 2023, Gabriel Barros was announced at Internacional in the top tier, signing a contract until December 2026.[9]
^"A base do artilheiro Gabriel Barros" [The youth of top scorer Gabriel Barros] (in Brazilian Portuguese). Ituano FC. 12 October 2022. Retrieved 9 March 2023.