He is known for his award-winning performance in the 2018 drama film Sócrates, which was praised by critics and earned him a nomination for Best Male Lead at the 34th Independent Spirit Awards.

[1] The film traces the story of Sócrates, a black 15-year-old teenager from Santos, in the coast of São Paulo, as he has to overcome extreme poverty, the death of his mother, and homophobia.

"[8] In Variety, critic Dennis Harvey wrote "Malheiros’ terrific turn makes this protagonist credibly tough by necessity, and mature beyond his years.

"[9] In The Los Angeles Times wrote that Malheiros' "facial gestures oscillate between stoicism and crushing wails.

"[11] In 2019, Malheiros began starring as Nando in the Brazilian crime teen drama streaming television series Sintonia, created and directed by Kondzilla, which premiered on Netflix on August 9, 2019.