Sergio Fernandez

Sergio Fernández Fernández operates from Madrid, Spain as an electro and tech house DJ and producer who began releasing music in December 2009. He performs under the aliases DJ Ser and Defaced, maintaining an active production schedule that spans nearly a decade with his most recent release appearing in January 2018. Fernandez has built his catalog across multiple imprints including insert coin, Oto Music, Goldentears Records, and Riben.

His sound traverses tech house and techno territories, specifically focusing on peak time and driving techno alongside progressive house and minimal deep tech variations. Fernandez also produces deep house material, demonstrating range across both underground and more accessible electronic music styles. His 24 releases showcase production work that moves between the driving energy of peak-hour techno sets and the deeper, more restrained approach of minimal tech house, providing DJs with tracks suitable for both warming up rooms and maintaining peak energy on dance floors.