Born in Cornélio Procópio, Paraná,[1] Lucas Otávio began his career in hometown's Bandeirantes Esporte Clube (BEC), and joined Santos FC in 2005, after impressing in a match against Peixe.
[6] A regular starter under manager Claudinei Oliveira, he eventually lost his place under Ricardinho, with his loan being cut short on 26 November due to an injury.
[9] On 10 March of the following year, after receiving little playing time under new manager Dorival Júnior, he returned to Paraná on loan until December.
Lucas Otávio left Santos in December 2018, as his contract expired, and subsequently joined PSTC.
He scored his first senior goal with the latter side on 21 April 2019, netting his team's fifth in a 5–1 home routing of Nacional de Rolândia.