 He teaches as a professor at the Faculty of Political Sciences of the University of Bucharest, the Department of International Relations, being a holder of the courses "Public International Law", "European Security" and "The Principles and Practice of Diplomacy".He also teaches the "International Negotiation Theory and Practice" course at the Masters of the Faculty of Political Sciences of the University of Bucharest and the course "Public International Law" at the Masters Courses of the Faculty of History of the University of Bucharest.Meleşcanu published a wide range of scientific papers and publications related to international law and diplomacy.