Born in Madrid, Spain, Mulero began his DJ career in the late 1980s, performing in prominent Madrid clubs such as New World and Overdrive. In 1994, he founded The Omen Club in Madrid, which became a seminal venue for techno enthusiasts. To gain greater control over his music production and distribution, he established Warm Up Recordings in 2000 and PoleGroup Recordings in 2004, both of which have been instrumental in promoting techno music.
Throughout his career, Mulero has released numerous albums and EPs, showcasing his ability to evolve with the genre while maintaining his distinctive sound. His performances have graced major techno events and festivals worldwide, solidifying his status as a global techno icon.