In January 2021, Guindo signed with Austrian club Red Bull Salzburg, signing a four-year contract and leaving his native Mali.[3][4] He was immediately loaned to Salzburg's feeder club, FC Liefering. He made his debut for the club on 12 February 2021, playing the entirety of a 3–1 home victory over Austria Lustenau.[5]
On 27 June 2022, Guindo was loaned to St. Gallen in Switzerland for the 2022–23 season.[6] He made his debut for the club on the first matchday of the season, coming on as a half-time substitute for Leonidas Stergiou in a 1–0 away loss to Servette.[7] A strong start to the season individually was capped off with his first assist on 6 August in the 3–2 league loss to Grasshopper Club Zurich.[8] On 6 November 2024, Guindo scored his first goal in the UEFA Champions League in a 1-3 victory over Feyenoord.[9]