At the same time, he was the Deputy Technical Director for Operation and Repair of Oil Bases and Gas Stations.

In 2004, he defended a research paper with honors on "Analysis of methods of utilization of vapors of light petroleum products during storage at oil depots."

In 2010, 2012 and 2014, he was part of the internship in the Chamber of Commerce of the canton of Ticino ("Camera di commercio") in Lugano, Switzerland.

In 2013, he was at TUV Rheinland AkademieGmbH, in which he was part of the management training program of the Federal Ministry of Economics and Technology of Germany (language of instruction and internship in English) in Cologne.

From July to October 2014, he was at the School of Political Leaders of the Eastern Partnership countries, between Kyiv and Warsaw.

As the instruction is spoken in English, as part of the training, he took an internship in the Parliament and the Office of the President of Poland, participated in the OSCE conference.

He was the general manager of the Sumy Regional State Administration, communication with high-level public authorities, organization of working trips of the President and Prime Minister of Ukraine, improvement of public administration, prevention of corruption, information policy, public relations, housing and communal services, energy saving, promotion and tourism, internal audit, agro-industrial complex, ecology and nature management, operation of fuel and energy complex.