1979-86 studies in Architecture at the Architectural Faculty, University of Zagreb
1990-2001 partnership with Helena Njiric ("njiric+njiric arhitekti") in Zagreb and Graz
2001- principal of njiric+ arhitekti in Zagreb
1998-99 visiting professor at the TU Graz, Austria
2000 visiting professor at the AF Ljubljana, Slovenia
2000 visiting professor at the Facolta di Architettura, Ferrara, Italy
2000-05 professor and head of the Institute for Architectural Typologies and Housing at the TU Graz (successor of Guenther Domenig)
2005 guest professor at the Arkitektskolen Aarhus, Denmark
2006 guest professor at the Facolta d’Architettura di Trieste, Italy
2007- regular professor at the GAF Split
2008-13 visiting professor at the ETSAM Madrid
2010 guest professor at the AF Ljubljana, Slovenia
2012-13 "The Frank Gehry Chair" at the UofT Toronto
HNJ was the visiting critic at the HAB Weimar, the ETSAB Barcelona, the TU Wien, the AA School of Architecture London, the ETH Zuerich, the Strathclyde University of Glasgow, Politecnico di Milano, the Southeast University of Nanjing and the William Lyon Somerville Visiting Lectureship at the University of Calgary. Unit master of international workshops in Zagreb, Merano, Maribor, Gorizia, Barcelona, Brescia, Unije, Santiago de Chile, La Coruna, Aarhus, Trieste, Kriva Palanka, Rijeka, Calgary, Hasselt and Montevideo.
HNJ held lectures in Zagreb(4), Rijeka, Vienna(2), London, Milano, Ljubljana(3), Glasgow, Edinburgh, Newcastle, Piran, Copenhagen, Barcelona(2), Brescia, Lausanne, Sibenik, Stavanger, Maribor, Ferrara, Zurich(2), Weimar, Antwerpen, Frankfurt, Oslo, Nanjing, Split, Trondheim(2), Valencia, Budapest, Madrid, Dublin, Groznjan, Santiago de Chile, Mexico City, Hannover(2), Biel, Melbourne, Boston (2) (Harvard), Trieste(2), Venezia, La Coruna, Silves(2), Aarhus, Skopje, Liege, Karlsruhe, Duesseldorf, Bucarest, Delft, Calgary, Napoli, Muenchen, Hasselt, Warsaw, Lodz, Gdansk, Belgrade, Tallinn, Montevideo, Genova, Lisbon, Coimbra, Darmstadt, Sisak, Tel Aviv, Haifa, Toronto, Ancona, Wroclaw, Dubrovnik and Bratislava.
HNJ was a jury member for the competitions in Croatia (7), Austria, Spain, Slovenia (3), Germany (2), Romania and Italy (2).
Work of the practice has been the subject of various collective exhibitions – in Graz, Berlin, Rotterdam (3), Vienna, Leeds, Rome, Sofia, Ljubljana (2), Weimar, Maribor, Madrid, Copenhagen, Oslo, Piran, Orléans, Castellón, Zagreb, Tokyo, Torino, Belgrade, Boston-Harvard, Basel, Paris, Pecs and Sarajevo. Solo shows include "colours" (Architectural Association - London, Strathclyde University - Glasgow, "Manifesto" - Edinburgh, University of Newcastle - Newcastle) exhibited from January to December 1998., "kalvarienguertel" (deSingel Kunstcentrum - Antwerpen) exhibited February - March 2001. and "mogu sto hocu" - an urban dyptich (Krizic-Roban Gallery - Zagreb) exhibited in June 2001.