Jurij Toplak teaches Constitutional Law for the ninth year now. His research is focused on constitutional law, elections and campaign finance issues.

He is internationally renowned expert in electoral issues and serves as a Secretary General of the European Election Law Association, which unites about 200 academics of 80 universities worldwide. He also serves as a Vice-Chair of the Research Committee on political finance and corruption (RC20) of the International Political Science Association (IPSA), where he has been on Board since 2006.

Slovenian parliament appointed him to the State Election Commission of the Republic of Slovenia and he is currently serving his third four-year term as a member of the Commission.

In 2000 Jure Toplak received a “Young Lawyer of the Year” award from the Slovenian Lawyers’ Association for his book on electoral redistricting.

In 2003-04 he served as a Fulbright Scholar at the UCLA Law School for a year.

He has given lectures at different national and international conferences in English, Slovenian, Serbian & Croatian language. He gave guest lectures at the Washington State University (USA), University of Idaho (USA), University of Pecs (Hungary), University of Zagreb (Croatia), and University of Belgrade (Serbia). Occasionally he lectures at the School of Postgraduate Governmental and European Studies and at the Administrative Academy in Ljubljana. He regularly appears at academic conferences worldwide. In 2006 he spoke at the IPSA World Congress in Fukuoka, Japan and in 2007 he presented a paper at the World Congress of the International Association of Constitutional Law (IACL) in Athens, Greece. In April 2009 he presented two papers and served as a Chair to the panel at Midwest Political Science Association in Chicago. In July 2009 he presented two papers at the IPSA World Congress in Santiago, Chile.

Occasionally he serves as an international election observer, most recently in October 2008 presidential elections in Azerbaijan and local elections in Bosnia and Herzegovina.

Jurij Toplak is on Board of the Slovenian Constitutional Law Association. He is also a member of American Political Science Association (APSA) and the section on election systems within APSA, Midwest Political Science Association (MPSA) as well as the International Association of Constitutional Law (IACL).

His international research includes research at UCLA, Los Angeles (2003-2004), Library of Congress, Washington D.C. (1998 & 2002), Georgetown University, Washington D.C. (2002), Oxford University, Oxford (2001), Central European University, Budapest (1999-2000 & 2001), Howard University, Washington D.C. (1998).

He serves as a political finance and corruption expert at the Council of Europe's Greco organization and occasionally appears before the Greco General Assembly in Strasbourg. Jure Toplak has served as expert project evaluator with the European Commission's 5th and 7th Framework Programmes and with the Intas. He served as a peer reviewer for Ashgate Publishing and for Election Law Journal.

He is also active in preparing initiatives and complaints to the Constitutional Court of the Republic of Slovenia and he has represented clients before the European Court of Human Rights in Strasbourg. 

Bibliography of Jurij Toplak contains over 100 items. He published six books and a number of articles and book chapters. The first book titled Electoral System and Redistricting, which was published in 2000, discusses the role of electoral districts in different kinds of electoral systems. It compares British, American, French, German and Slovenian electoral systems and redistricting procedures. Mr. Toplak’s book was the first work published in Slovenia on the redistricting issues. He led the project of the first translation of the United States Constitution to Slovenian language and coedited a book on U.S. Constitution together with Klemen Jaklič in 2005. He contributed to the Encyclopedia of the Supreme Court, Encyclopedia of the First Amendment and Encyclopedia of the U.S. Constitution. He has published in the JRC SSCI database journal Electoral Studies and in Temple Law Review. As a secretary of the European Election Law network Jure Toplak coordinates an election law mailinglist, coedits Eurela Election Law Newsletter and the www.eurela.org webpage. He also edited Slovenian Fulbright Alumni webpage. He founded the www.volitve.si website, the central Slovenian web page on elections. 

Jurij Toplak was also president of the Democracy Promotion NGO (2002-2007), member of the Board of Directors of the Ozara humanitarian organization (2005-2008) and the the coordinator of the Washington Workshops Foundation activities in Slovenia (2004-2007). In 2006 he served as vice president of the Board of Supervisors of the Casino Maribor. In 2004 he organized a video conference on U.S. presidential elections featuring two of the world's leading experts in election law, prof. Daniel Lowenstein of UCLA Law School and prof. Rick Hasen of Loyola Law School. Together with visiting professor Jeffrey Matsen he organized an American Legal System Seminar for over 150 students in 2006. In 2006 Jurij Toplak organized the first model parliament simulation at the University of Maribor Law School. In 2009 he served as a judge at the I. national Slovenian "Pitamic" Student Competition in Law. Jurij Toplak orgnized an international conference "Regulation of Election Campaign" in 2009 featuring Slovenian Minister of Public Administration Irma Pavlinič-Krebs, Daniel Lowenstein (UCLA), Djordje Gardasević (Uni of Zagreb), and many others.