Mariano began his career in Lautrec Saatchi & Saatchi, the most creative Argentine agency at the time. After winning back-to-back Gold lions in 1996 and 1997 he embarks on a world tour with Saatchi & Saatchi. He worked as Creative Director in the New York, Toronto, Sydney and Paris offices, charged with Toyota, Sony, General Mills, Beck's, and Procter & Gamble campaigns. He later co-founded in 2009, working from Buenos Aires for Argentina, Mexico, France, Germany, Canada, and the US. In 2020 he became Creative Director of Borderless Grey.
His ads, films and design, seen all over the world, have been awarded over 150 prizes in major advertising festivals.