Born in Mirassol, São Paulo, Kléver graduated from Fluminense's youth system, and made his senior debuts while on loan to Volta Redonda in 2011.
Born in Mirassol, São Paulo, Kléver joined Fluminense's youth system in 2006, aged 15. Diário Lance!, 12 October 2013 He made his senior debuts while on loan to Volta Redonda in 2011.