[2][3] In June 2013, Jubero was named interim manager of Guaraní, after Diego Alonso left the club.
[4] He was in charge of the club for the remaining matches of the 2023 Apertura tournament, and later returned to his previous role as Gustavo Díaz was named manager.
[6] On 21 February 2016, Jubero was appointed Olimpia manager, replacing Francisco Arce.
[9] On 23 December 2017, Jubero left Libertad after having to make a treatment back in his home country.
[12] On 3 December 2019, Jubero was named in charge of Japanese club Júbilo Iwata for the 2020 season,[13] but was dismissed on 2 October 2020.