Antoaneta Klobučar has been employed since 1986 at the Faculty of Economics and Business in Osijek at the Department of Mathematics and Informatics. Since 2020, she has been working as a permanent professor at the Department of Mathematical Methods and Informatics at the Faculty of Economics and Business in Osijek. She has published over 30 scientific and professional papers, mostly related to graph theory. Her focus of scientific orientation and research is represented by dominances on various types of graphs and combinatorial problems in general. She teaches several subjects at different levels of study within her alma mater, and as an external associate she was a guest at the Department of Mathematics and the Department of Physics of the J.J. Strossmayer University in Osijek, as well as at the Faculty of Humanities and Social Sciences in Osijek. On several occasions, she stayed at the Montanuniversitet in Leoben, Austria, with Prof. Norbert Seifter, PhD, who was her doctoral supervisor. From 2011 to 2014, she was the leader of the international individual project “Some Applications of Geometric Representations of Graphs” within the CRP project “Geometric representations and symmetries on graphs, maps and other discrete structures and applications in science.” She is a member of the Croatian Mathematical Society (HMD).