He was born on December 18th, 1958, in Bahía Blanca which is a coastal town in Argentina, and graduated from Industrial Design Department in 1984. He has taught lessons in Dolmus Academy which he had the master's degree in 1986, and in Architecture Faculty of Milan Technical University.
In Studioruiz which was founded by himself, he worked with various world famous brands such as 3M, Alessi, Alfa Romeo, B&B Italia, Gruppo Electrolux, Fratelli Guzzini, Kellogs, Microsoft Italia, Mitsubishi, Virgin Records, Zanussi Elettrodomestici and Nude.
Ruiz has participated in many design and interior architecture focused events and exhibitions in Italy, France, Finland, Germany, Japan, The Netherlands, England and the USA. The grater which Ruiz has designed for Alessi is in the portfolio of New York MoMA continuous exhibition.
He has created the brand called Lessdesign with Anna Lombardi in 1994, with the purpose of developing industrial projects. The designer has been living in Milan since 1986, and has been working on packaging, interior design, store design, event and exhibition design in Studioruiz which has been active since 1994.