Olga Cvejić Jančić taught family law, European family law and inheritance law, at the University of Novi Sad from 1980 to 2010, served as Dean of the Faculty of Law from 2004 to 2006 and was Head of the Civil Law Department from 1999 to 2005. Ms Cvejić Jančić was also a visiting scholar in residence at the Washington and Lee University.  

Currently she is a member of the Commission for the Drafting of the Serbian Civil Code and of the Editorial Board of the Kopaonik School of Natural Law. In addition, Ms Cvejić Jančić is an associate member of the International Academy of Comparative Law, a Founding Member of the ELI, a member of the International Society of Family Law and the International Academy for the Study of Jurisprudence of the Family as well as President of the Executive Board of the Serbian Association for Comparative Law. She also sits on the editorial boards of several domestic and foreign journals.