Upon graduating from the Law Faculty University of Belgrade, Jankovic performed a two-year clerkship in one of the best law offices in Jagodina at the time. He then became the head of a regional government office of The Republic of Serbia “Contact Serbia”, which operated in all of the counties across the country. His main role at the time was to establish channels of communication between all business entities, as well as concerned citizens, with The Government of the Republic of Serbia and its adequate ministries.
Jankovic has been a lawyer since 2002, practicing primarily in the area of corporate law. He is a member of the Kragujevac bar association within the bar association of the Republic of Serbia.