In the period 1992 - 2002 he worked in the Ministry of the Interior of the Slovak Republic. After graduating from the Academy of the Police Force in Bratislava in 1998, he worked as an adviser to the Minister of the Interior of the Slovak Republic in the field of security and European integration. From 2002 to 2015, he worked at the National Security Office, where he held several management positions. In 2004, he was appointed director of the NSA's office, serving until 2006 when he was seconded as a liaison officer to the NSA for the North Atlantic Alliance and the European Union in Brussels. After returning in 2010, he defended his dissertation at the Academy of the Police Force in Bratislava in the field of information security. In 2011 he was appointed Deputy Director of the NSA. Since 2015, he has been working as an external teacher at the Academy of the Police Force in Bratislava, teaching the subject Protection and Security of Classified Information. He founded the company BMSEC Ltd. focused on security. He works as the president of the civic association AFCEA Slovakia focused on supporting cooperation between the public and private sectors in the field of security. He is the author of a number of professional articles and publications focused on information security.