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Andrii Velychko is an experienced technology professional with a robust background in data management and business intelligence. Currently serving as a Senior Support Systems Administration Engineer at Astelit since April 2008, Andrii specializes in the development and administration of data warehouses for mobile network operations, focusing on data modeling, ETL processes, and Oracle SQL transformations. Prior experience includes roles at the FIU of Ukraine from February 2003 to April 2008, where Andrii contributed to the creation of financial monitoring systems and managed database installations and configurations, as well as early software development work for Ukrgeophysics from October 2000 to February 2003. Andrii holds a Master’s degree in Economic Cybernetics from the National Technical University of Ukraine 'Kyiv Polytechnic Institute'​, earned between 1996 and 2002.