Since 1999 until now - Building Research Institute (ITB), Warsaw, Poland; 2007 - Manager of Thermal Physics Section; 2008 - Manager of Thermal Physics, Sanitary Systems and Environment Laboratory and Department (in 2013); 2015 - Vice Director for Strategy and Development; 2017 - Director of Institute; 2008-2017 Member of the Scientific Council of ITB. Member of Standardisation Technical Committee - Thermal protection of buildings - national mirror for CEN/TC 89 Thermal performance of buildings and buildings components. Since 2011 Head of the Technical Committee - Thermal insulations products for building applications - national mirror for CEN/TC 88. 2006 - Ph.D. - the dissertation on thermal diagnostics of buildings envelopes based on computer simulations of temperature fields. 1999, MSc. at the Faculty of Civil and Sanitary Engineering, Lublin University of Technology, Specialty: Construction and Engineering Structures. Area of expertise: Sustainability aspects of construction products, works and buildings in the scope of thermal and energy performance; building systems quality and performance (HVAC and sanitary); hygienic and environmental performance. Limiting the energy use in buildings regarding ecological, economical and political aspects and energy-related LCA. Validation, implementation of evaluation methods based on computer modelling of the heat transfer and temperature fields in construction products and buildings.