In 2010, shortly after his return to Vasco's futsal section, Cortez accepted an offer from the Kuwait national futsal team to work as their coach; he was also in charge of Qadsia.[3] He returned to Vasco in 2017, as an assistant of the under-20 football side; in 2018, he was named coach of the under-16 team.[4]
On 27 February 2021, Cortez was named Marcelo Cabo's assistant in the main squad.[5] On 16 June, he was in charge of the side in a 0–2 Série B home loss against Avaí, after Cabo and his assistant Gabriel Cabo were sent off.[6]
On 11 November 2021, Cortez was named interim manager of Vasco until the end of the campaign, after Fernando Diniz was sacked.[7] He returned to his former role after the appointment of Zé Ricardo as head coach for the 2022 season.
On 14 December 2022, Cortez moved to Remo as the club's permanent assistant manager.[8] He was also an interim head coach of the side during the second leg of the 2023 Campeonato Paraense Finals, as the club lost the title to Águia de Marabá.
^"Reestruturação do Departamento de Futebol" [Restructuring of the Football Department] (in Brazilian Portuguese). CR Vasco da Gama. 11 November 2021. Retrieved 12 November 2021.