 After being rejected from the Kraków Theatre School, he worked as an assistant and collaborator of set designer Małgorzata Szczęśniak at Warsaw's Rozmaitości Theatre.In 2001 he was accepted and began studying at the Directing Department of the Kraków Theatre School.Since 2004 Zadara has directed more than thirty plays and performance art pieces at The Wybrzeże Theatre in Gdańsk, Stary National Theatre in Kraków, Współczesny Theatre in Wrocław, National Theatre in Warsaw, Współczesny Theatre in Szczecin, the Maxim Gorki Theatre in Berlin, the HaBima National Theatre in Tel Aviv, the Schauspielhaus Wien and a staging of Iannis Xenakis's opera "Oresteia" at the National Opera in Warsaw.