He then moved to Resende in the state of Rio de Janeiro to attend Agulhas Negras Military Academy.

[3][4] Oliveira attained the rank of captain in the military, and afterwards remained in the state of Rio de Janeiro, where he briefly worked as an economist and engineer before entering politics.

[6] Oliveira voted in favor of the 2017 labor reform, and would later back Rousseff's successor Michel Temer against a similar impeachment motion.

[10] Oliveira died on 21 October 2020, due to complications from COVID-19 during the COVID-19 pandemic in Brazil, at the Samaritan Hospital in Rio de Janeiro.

[2] Oliveira had previously stated that social isolation was "useless" and had defended the controversial usage of Chloroquine to treat the disease.