Duarte has worked as an assistant professor in the University of Lisbon, teaching football in the Faculty of Human Motricity.
Duarte moved to Finland in 2018 and worked as an assistant coach of Petri Vuorinen in Vaasan Palloseura (VPS).
[1] In October 2021, Duarte was named the new manager of Veikkausliiga club AC Oulu, after the sacking of Jyrki Ahola.
[2] He managed to secure the league spot for the club after defeating Rovaniemen Palloseura (RoPS) in the relegation play-offs.
[3] However, on 25 August 2023, his contract was terminated with the immediate effect after the loss against Ilves in the semi-final of the 2023 Finnish Cup and the poor results in the league.