Jan Zobec graduated from the Faculty of Law of the University of Ljubljana in 1978. He was judge at the Basic Court in Koper at the Higher Court in Koper and at the Higher Court in Ljubljana. In May 2003 he became a judge of the Supreme Court of the Republic of Slovenia. For all years of his judicial career he worked in litigation and civil law departments, while as a Supreme Court judge he occasionally also participated in sessions of the business law panel. He commenced duties as a judge of the Constitutional Court on 27 March 2008 and after the expiry of the nine years term, he resumed his service as a Supreme Court Judge.
He has actively participated in various Slovene as well as international professional meetings, conferences and seminars, and lectured to judges and lawyers. As a lecturer he has often participated in judicial school seminars and occasionally lectures at the New University. He is a member of the state legal examination commission in civil law. His bibliography includes more than 60 publications, mainly in the field of civil (procedural) law, human rights law and constitutional law, including, inter alia, as co-author, Pravdni postopek [The Civil Procedure - volumes 1-4 of a commentary on the Civil Procedure Act] and co-author of the last two editions of the Commentary on the Constitution of the Republic of Slovenia. He is also a member of the European Judicial Network, a small group of judges of respective European constitutional courts and judges of the ECtHR and the CJEU, organized within The Federalist Society, an American association of judges, lawyers and other jurists.