Born in Caxias, Maranhão, Kauan moved to Pará as a child.[3] He moved to Goiânia following a trial with Goiás, joining the club in 2017.[2] Following impressive performances for Goiás' youth team, he made his debut in the 2022 season, playing the entirety of a 2–2 penalty Copa Verde loss to Real Noroeste.
He was promoted to the first team for the 2023 season, where his career got off to a good start, scoring on his third appearance in the Campeonato Goiano, the first goal in a 2–0 win over Goianésia on 8 February 2023.[4] He scored his second goal, and notched two assists, in an 8–3 win over Goiânia in the Campeonato Goiano quarter-finals.[5]
Regularly used by head coach Guto Ferreira, Kauan was sent back to the under-20 squad in March 2023, after failing to agree to a new contract.[6]
Fortaleza
On 3 May 2023, Goiás announced the transfer of Kauan to fellow Série A side Fortaleza.[7]