Machine learning practitioner. Since 2006 invariably awarded Microsoft Most Valuable Professional title, one of two Polish AI MVPs. Speaker at many European conferences, such as Machine Learning Prague, Data Science Summit, SQLDay, 4 Developers, SQL Nexus, SQL Saturday, Sphere.it and Microsoft Technology Summit. University teacher and author of books and articles about Microsoft data platform, including bestsellers “Data Science and Machine Learning” (WN PWN, IT book of the year 2018) and “Practical Machine Learning” (WN PWN, IT book of the year 2020). Co-author of “Microsoft AI MVP Book”.