Viliam started his career as an Economist and later Chief Economist of UniCredit Bank Slovakia in Bratislava, where he built up a renowned and one of the most quoted economists team in the country. During this period he also served as a member of the Board of the Antitrust office of Slovak republic. Later on he moved to Milan, to take over responsibility for global planning and controlling activities with UniCredit Holding. In 2010 he joined UniCredit Bank Austria to be in charge of Assets Liabilities Management team for CEE. Later, during 2012, he took over the responsibility of ALM for both Austrian and CEE perimeter.