Born February 1953 in Postojna, Slovenia. In the Early 70's he moved to Italy where he toured and recorded with the group Hero. In 1975 he was involved with the music co-operative Swiss, playing with Irene Schweitzer, Radu Malfatti, Duško Goykovich and Allen Blairman, among the others. In 1976 he moved to Barcelona and began playing in clubs and festivals all over the country with people such as Peter Delphinich, Eric Peter, Tete Montoliu, Claude Guillot, Paul Stocker, Mike Osborne, Burton Greene, John Lewis, Steve Lacy and Kenny Wheeler, as well as giving solo concerts.

In 1979 he toured Portugal with Paul Stocker and then joined The trio with Portuguese bassist Ze Eduardo and pianist Antonio Pinho, which played extensively in Portugal as well as in Macau (China), and subsequently backed Don Rendall, Michael Garrik and Portugese tenorist Rao Kyao.
From 1981-83 Zlatko taught drums  in the Barcelona "Taller de musicos" jazz school and participated in jazz seminars with Chuck Israels, Ron Mclure and David Schnitter.

Since 1984 he has lived in Amsterdam (Holland). Zlatko has played the "North sea jazz festival" twice and plays with his own trio which tours Spain regularly. He also plays with an octet and composes music for theatre and dance groups. Zlatko's specialty is an unique solo percussions performance that expresses his own personal style.

He has been twice in U.S.A.: 1987 - Itacaca (New York): workshop for theater + music and 1989 - world festival Atlanta (G.A.) with European jazz quintet.

Zlatko has played in Holland with such a diverse musicans like Misha Mandelberg, Toon Rose, Paul Stocker, Sean Bergin, Arnold Dojewerd, Wiebe Wilbers (Skidoo), Frank Graso Big band, Peter Guidi, Paul Bley, Esiet "Okun" Esiet, Michael More, John Patituci, Paolo Fresu, Phone Booth (Theater company), wiht Lisa Pooh (Dance Theater), etc.

1992 he return to Slovenia where he began playing different musical projects like with Paul Bley (Lent festival; Maribor), Steve Lacy, Thelonius Monk Project (Kontrada fest; Kanal ob Soči) with Enrico Rava, Gianluigi Trovesi, Chico Freeman, George Cables, Albert Mangelsdorff, Keeny Wheeler, Alexander Balanescu, Dave Biney, Paul McCandless, Irene Aebi, Trevor Wats, Javier Girotto, Frank Gratkowski, Szilárd Mezei, Marc Ribot, Greg Cohen, Saadet Türköz, Peter Brötzmann, Jean-Luc Cappozzo, Luis Sclavis, Evan Parker, Herb Robertson, Javier Girotto, Agusti Fernandez, Oliver Lake, Phil Minton, AB Baars, Johanes Bauer, Joëlle Léandre, Barry Guy, Maya Homburger, Lotte Anker etc and making music for two documentaries (Kino atelje Gorica) and solo Performances, poetry and dance.

Year 2008 he got award of municipality Brda as creative multi-percussionist, who is recognized and respected on world level.
In the interviews Peter Amalietti "Masters the fire" in addition to musicians Archie Shepp, Sun Ra, John Cage, Paquito D'Rivero, Pat Metheny, Odeon Pope, Reggie Workman, Dennis Gonzalez and Woddy Shaw has also published aninterview with Zlatko Kaučič.

Year 2011 he got PREŠERN FUND AWARD (The highest recognition for cultural achievements in Slovenia). video...

Year 2017 he got BEVKOV AWARD for contribution in music and education.