After graduating as Master in Business Law at the University of Utrecht, The Netherlands, Dirck joined in 1989 the marketing department of Procter & Gamble Benelux in Rotterdam, The Netherlands. In 1993 he moved to beer brewer Interbrew Netherlands where he held a number of management positions in Marketing, Trade Marketing and Sales. In 1999 Dirck was appointed Marketing Director for Interbrew in Ukraine and managed the growth of the company through acquisitions and brand development from 7% to 33% market share. He developed the beer brands Stella Artois, Chernigivske and Rogan who all became leaders in their segment of the market. In 2003 Dirck left Interbrew and co-founded ProMarketing Ukraine.