Born in Aracaju, Sergipe, Dawhan represented Vitória, Internacional and Corinthians as a youth, before making his senior debut while on loan at Corinthians' partner club Flamengo-SP in 2015.[1] He subsequently returned to Timão's under-20 squad after the 2015 Campeonato Paulista Série A3, but left the club in the end of 2016 as his contract expired; he subsequently agreed to a deal with CSA.[2]
Dawhan featured regularly for CSA during the following seasons, achieving two consecutive promotions and reaching the Série A, aside from winning the 2017 Série C and two Campeonato Alagoano titles in a row. He made his top tier debut on 28 April 2019, starting in a 0–4 away loss against Ceará.[3]
^"国安官宣四名内外援加盟:巴西全能中场+国脚吴少聪" [Guoan Announces 4 Signings: Brazilian Midfield All-Rounder and Chinese International Wu Shaocong]. www.sohu.com (in Simplified Chinese). 2 February 2025. Retrieved 2 February 2025.