He became known through his own techno underground event series "RESET." (FD▪DE) and the founding of the FLINTA-PRO techno collective "MIND THE GAP" (FD▪DE), bookings followed in Frankfurt am Main (GER) in the renowned silbergold Club, where he impressed the scene with his "All Night Long" set at the end of 2023. MARIO CORTES celebrated his international debut in 2024 in the underground club "Club de With" in Amsterdam (NL). This was followed by appearances in Germany's top techno clubs, including the Top 7 Club Silodom Club in Saarbrücken, where he took over the peak time in the main floor "Keller" and the closing in the "Bordell-Floor" in 2024. In 2024 he also played the peak time in the "Bunker-Floor" of Berlin's Top 5 open-air club BIRGIT. Further gigs took him to the "Klubhaus Kickerkeller" in Erfurt, to the Sonnendeck St. Pauli in Hamburg and to the MUK in Gießen. In total, he played in more than 10 different cities in 6 months in 2024. In 2025 MARIO CORTES returns to Amsterdam to be part of the ADE at Club John Doe.