He joined the IIASA's Forestry Program in October 1992 and has been principal investigator in a number of projects on the forest sector of Northern Eurasia, including projects financed by the European Commission, European Space Agency, and other international organizations (such as Siberia, Siberia-II, GSE-FM, IRIS, Enviro-RISK, and Zapas).
Professor Shvidenko's main fields of interest are forest inventory, monitoring, mathematical modeling, global change, and boreal forests.
He served as lead author and coordinating lead author in the Third Millennium Ecosystem Assessment and in the 2nd, 3rd, and 4th IPCC Assessments (the work of the IPCC, including the contributions of many scientists, was recognised by the joint award of the 2007 Nobel Peace Prize).
He has taken part in a number of important international global change activities and initiatives as member of steering committees and councils (Global Terrestrial Observing System Terrestrial Carbon Observation Panel, FAO Forest Resource Assessment, International Boreal Forest Research Association, Scientific Council of the World Commission on Forestry and Sustainable Development, Siberian National Committee on IGBP, etc.) Shvidenko is a member of the Board of International Boreal Research Association (IBFRA).