Alexei Cherenkov works in data science since 1988, when this profession even was not named so. His carrier mostly developed in Russia, where he worked for international companies such as SPSS, GfK, Readers Digest, IBM. He mainly did data science projects in marketing domain. Relocated to the Netherlands several years ago to work for Philips as Senior Finance Data Scientists. He is experienced in the full range from database architecture and software development, to statistics and data science team management, to development of AI strategy. Author of books and scientific papers, he always happy to share his knowledge.