Roberto Sanmartin started mixing in Switzerland in 1999 as DJ Avalanche. He mixed Trance with Vinyl until 2003. After 13 years break on January 2016 he came back under the name of ROBERT NANDEZ in Spain. He went international on 2017. He mixes Tech House and Techno with CDJ and is powered by V-Prof Hi-Level Sound Reinforcement. Since the beginning of 2018 he started to produce under the supervising of Joe Red and Dani Sbert.