Ozren was born on the 8th of January 1983 in Nasice, Croatia. He has a degree in English language and Comparative literature from University of Zagreb Faculty of Humanities and Social Sciences from which he graduated in 2001. He is a professional screenwriter since 2009. His first project was the TV-series Najbolje godine (The best years of our lives). Since then he has worked on some of the most commercially successful TV series in Croatia including Ruza Vjetrova (Wind Rose), Larin izbor (Lara's Choice) and Vatre Ivanjske (Fires of Ivanje).