After achieving 75 games and 12 goals in the Portuguese Primeira Liga for União de Leiria, Olhanense and Nacional, he won club and individual honours with Santos Laguna in Mexico, Al Ahli in Saudi Arabia, Trabzonspor of Turkey and Sharjah in the United Arab Emirates.

Born in Santa Cruz, Djaniny arrived in Portugal at the age of 18 to study renewable energy, immediately starting playing football with Azores-based Grupo Desportivo Velense, a regional league club from Angra do Heroísmo.

[12] Djaniny moved to Mexican club Santos Laguna on 24 June 2014, reuniting with his former Leiria coach Pedro Caixinha.

[19] In the 2021–22 campaign, Djaniny was an integral part of the squad that secured the club's first Süper Lig title in 38 years,[20] but moved on loan to Sharjah FC of the UAE Pro League for the second half of 2022–23.

On his debut on 10 February, he scored and assisted Paco Alcácer in a 4–0 home defeat of Ajman Club to go top of the table.

[21] Fifteen days later, he featured in a 1–0 win over reigning league champions Al Ain FC in the UAE Super Cup.

[22] Djaniny returned to the Saudi Pro League in September 2023, on a two-year deal at Al Fateh SC.