David Guillen

David Guillen is an experienced Oracle Fusion Middleware Administrator with a career spanning over a decade. They held roles at various companies, including Telefónica as an Application Administrator and later at TENEA TECNOLOGIAS as an Oracle Fusion Middleware Administrator. David served as a Site Reliability Engineer and Middleware Specialist Team Leader at both Minsait and Enagás from 2018 to 2022. Additionally, they worked as a Systems Analyst at MTP Métodos y Tecnología and began their career as a Web Administrator at IECISA after providing support in computer classrooms at Universidad Carlos III de Madrid.