Mladen Sučević has graduated at the Zagreb School of Law and began his career at the Croatian Railways Legal Department. Prior to being accepted into the Croatian Bar Association, he served as a judge at the Zagreb Municipal Court. He published a number of expert articles and held several seminar lectures. He has been serving as a guest lecturer at the Zagreb School of Law for over 20 years. He additionally served as a member of the State Judicial Council. He currently serves as the President of the Bar Academy, Croatian Bar Association.