Klismahn is a youth product of the Brazilian club Desportivo Brasil, before moving to the U23 side of Estoril between 2018 and 2021.
[1] After a successful season, he moved to the Primeira Liga side Portimonense on 13 July 2022.
[3] On 28 June 2023, Portimonense sent Klismahn on a season-long loan to recently-relegated to Liga Portugal 2 side Santa Clara.
[4] On 21 June 2024, Santa Clara activated the option to buy Klismahn free.
[5] Klismahn was named by his father after the German footballer Jürgen Klinsmann.