Tadej Ostrc, born in 1981, graduated from the Franc Miklošič General Upper Secondary School (gimnazija) in Ljutomer in 2000 and continued his studies at the Faculty of Medicine of the University of Ljubljana. Immediately after completing his studies in 2008, he continued his education at the Faculty of Social Sciences of the University of Ljubljana, where he obtained his master's degree in 2016. In 2008, alongside his studies, he completed a one-year internship in dental medicine at the Ljubljana Community Health Centre and then became a specialist in prosthodontics in 2017. He is currently working as a teaching assistant for prosthodontics at the Faculty of Medicine of the University of Ljubljana and as a specialist in prosthodontics at the University Clinical Centre Ljubljana.

Tadej Ostrc is also the President of the Medical Faculty Trade Union, a member of the Dentistry Committee of the Medical Chamber of Slovenia, the President of the Postgraduate Training Commission and the President of the Professional Issues Commission of the Dentistry Committee, and, since 2021, the President of the Lions Club, a volunteer organisation where he runs charity campaigns and heads collection efforts.