Bansé is a youth product of the Belgian clubs Gierle, De Kempen, Westerlo, Mechelen and Gent. On 16 July 2022, he signed with Standard Liège on a professional contract and was assigned to their reserves.[2] He made his senior debut with Standard Liège in a 3–1 Belgian First Division A loss to Gent on 3 June 2023.[3] On 19 July 2023, he extended his contract with Standard Liège until 2026.[4] On 1 September 2023, he joined the French Ligue 2 club Valenciennes on loan for the remainder of the 2023–24 season.[5]
Bansé joined 2. Bundesliga club Greuther Fürth on a "long-term" contract in August 2024.[6] The transfer fee paid to Standard Liège was undisclosed.[6]