 Until 1988 Shcherban worked as a mining engineering and after the independence of Ukraine he established a cooperative organization "Progress" and later a corporation "ATON".Among other companies that associated with his name were "Gefest" (today "Parallel"), "Finansist", "AMEST" and others.In the mid-1990s, Shcherban was among the richest people in Ukraine and prominent and influential member of parliament for the Liberal Party of Ukraine.