Sergio Martínez de Tejada Ayuso@sergimartnezSpainFollowAboutCurrentTelefonica I+DEducationUniversidad Autónoma de Madrid, Madrid BadgesProblem SolvingPythonRuby Certificationssergimartnez has not earned any certificates yet. Work ExperienceIBMTelefonica I+DEducationUniversidad Autónoma de Madrid, Madrid