Butera has been with Anderlecht since under-11 level. On 6 May 2021 Butera signed his first professional contract with Anderlecht. The contract ran until the conclusion of the 2023–24 season with the club's Jean Kindermans describing him as a "strong left footedcentre back who can also play in midfield, a natural leader with a bright future". Butera made his debut in the Challenger Pro League on 14 August. 2022 in a 0–0 home draw against Deinze. Butera was identified as one of the core reasons RSCA Futures were the last unbeaten side in Belgian football during the 2022–23 season. Such was his form he was linked with potential transfers to Juventus, Ajax and Atalanta.