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Kazakov Ivan is a Big Data Engineer with significant experience in data processing and system optimization. Currently at МаксимаТелеком since October 2020, Kazakov focuses on developing data loading and transformation streams, testing loaded data, and optimizing data processes. Responsibilities also include developing statistical portals using Python, migrating systems from Hadoop to Clickhouse, and managing a development team. Previously, Kazakov worked as a Database Developer at СофтТелематика and as a Junior Technical Consultant at GlowByte Consulting, where tasks included similar data development and testing, along with system analysis collaboration. Kazakov holds a Master's degree in Information Technologies from Moscow Technical University of Communications and Informatics, obtained from 2012 to 2018.