Santiago has extensive professional experience in journalism and management. Until he was appointed Director General of Antena 3 Noticias, he was Director General of TVE between 2010 and 2012. Previously, he was Director General of RNE between 2007 and 2010. Between 2005 and 2007, he was Director General of Radiotelevisión Canaria and the Chairman of FORTA, being the youngest Director General.

In recent years, he has been Contents Director at the Secuoya Group and founder of Salex Consultores.

During his professional journalism career, he has been Director of the Televisión Autonómica de Canarias’ news service since it was founded. Previously he worked as an editor for Cadena SER’s news services in Madrid. Furthermore, he has worked as Press Officer for the Santa Cruz de Tenerife Municipal Council. He has also worked for the magazine Metrópoli, the El Mundo newspaper and the Cope radio news service.