Zajc graduated from University of Ljubljana, where she earned her bachelor"s degree in law. She continued her studies in the United States of America, where she received an Master of Laws degree from Yale Law School and a Doctor of Philosophy in economics from George Mason University.
In 2009 she started a six-year member term on the Judicial Council of Slovenia. In 2009-2010, Zajc was a visiting professor at Utrecht University, Netherlands. Earlier in her career, she was also an arbiter at the Permanent Arbitrage at the Slovenian Chamber of Commerce, a lecturer at the Police Academy in Slovenia, a research and teaching assistant at George Mason University, United States of America, and a researcher at the Vienna Institute for Comparative Economic Studies, Austria.
In 1988, she represented Yugoslavia as an alpine skier in the Winter Olympics in Calgary, Canada.
Zajc is currently an associate professor at the University of Ljubljana, where she is a member of the Chair of Law and Economics.
