After unsuccessfully emerging through Real Sociedad's youth ranks and playing with amateurs SD Beasain, Jandro started his professional career with local SD Eibar also in the Basque Country, often playing as a forward.
Jandro started his professional career after not succeeding in Real Sociedad's youth ranks and playing for amateur SD Beasain. He then joined SD Eibar, also in the Basque Country, often playing as a forward.