Since 1995, Nikola has worked on numerous campaigns for the leading Croatian advertisers and brands like Podravka, Ledo, Ožujsko pivo, Kraš, Zagrebačka banka, Tele2, Atlantic grupa, Croatian Post and many others.

Nikola was also the Creative Director of Brlog, a specialized digital shop, part of Bruketa&Žinić OM group between 2010 and 2015. During that time he was the Creative Director of Zagreb Be There mobile app that won the Tourism&Strategy Award in Paris as the best digital communication project.

In the past thirty years Bruketa & Žinić & Grey, which serves as a Design Hub for global Grey network, has won over 650 awards for advertising and design. Before joining Grey in 2017, the agency operated under the name Bruketa&Žinić OM and was ranked second among independent agencies on the global Effie Effectiveness Index in 2012.

He was a jury member of the Euro Effie and Effie Croatia awards, Golden Drum, Croatian Young Lions Award, regional BalCannes, Kaktus Award, SPORTO and PART Award.

Nikola is also a design thinking mentor. He regularly holds lectures and workshops on innovative problem solving and creative thinking for college students and professionals.