José Dionisio, based in Madrid, ES, is currently a Ingeniería de Defensa y Seguridad at Telefónica, bringing experience from previous roles at Telefónica and Telefonica Soluciones de Outsourcing. José Dionisio holds a 2021 - 2023 Experto Profesional en Investigación Privada @ Universidad de Extremadura. With a robust skill set that includes RAN, Developmental Disabilities, Node B, HSPA, Customer Service and more, José Dionisio contributes valuable insights to the industry. José Dionisio has 2 emails on RocketReach.