János – with a 25 year senior management and finance lead experience – graduated in International Relations at Budapesti Közgazdaságtudományi Egyetem (now Corvinus University of Budapest). His career started in foreign services than he moved onto different financial, accounting and consultant positions in small businesses.
From 1995 he hold several senior financial and business leader positions at the Hungarian division and European HQ of Delco Remy (former US based automotive part manufacturer). Later he became the deputy CEO/CFO of the joint venture between Delco Remy and Hitachi. He joined Magyar Telekom as Head of Finance for fixed line business segment in 2003 and continued as Head of Group Controlling in 2008. János was the CFO of Magyar Telekom Group between 2013-2020. He was also chairman of the BoD of Crnagorski Telekom and member of the BoD and head of Audit Committee at Makedonski Telekom for several years. Since 2020 János is in private business.
He is a passionate handball fan and has various positions in international club handball network, including member of Advisory Board of the marketing company of European Handball Federation (EHFM GmbH).