Iaroslav is the Dean of the Applied Sciences Faculty at the UCU and holds the office of the Professor in Quantitative Methods for Business Decision-Making and Economics. He did his internship at The George Washington University, USA. At the National Bank of Poland, Yaroslav acted as a scholarly supervisor on enhancing the macroeconomic modelling and forecasting the Eastern European economies. Besides, he is a Member of Global Policy Fellows Program of the Institute for Higher Education (Washington, USA). Yaroslav is actively involved in econometric modelling and forecasting, as well as research in the field of Microeconomics and Macroeconomics. He is the author of numerous publications on complex analysis, macroeconomics, and forecasting. Yaroslav has participated in a large number of international conferences, training, and research programs.