Ander graduated in Fine Art from Barcelona University, and in Fiction Direction from the ESCAC. After working as an assistant director on films including The Silly Ones and the Stupid Ones (2014), by Roberto Caston, and Day Release (2015), by Geofrey Cooper, and directing several TV documentaries about historical memory for Baleuko and ETB, such as 40/24 (2015) and 20N (2015), he founded the production company Mirokutana. In the field of drama, his works include films such as Los inocentes (2013) and the shorts Otsoko (2013) and Mirokutana (2019). Notable documentaries include the shorts Sumud (2014) and Emarri (2018), and the feature-length Echevarriatik Etxeberriara (2014), Bihar dok 13 (2018) and Blue Files (2023). His works have been selected and won prizes at numerous international festivals: SSIFF, IDFA, FIPADOC, Documenta Madrid, Sitges, DOCS MX and Malaga.