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Nikita Kovalev is a highly experienced software developer with a strong background in backend development and Big Data solutions. Currently serving as a Senior Developer at BI.ZONE since January 2019, Nikita has successfully developed a cloud-based session analysis service for an anti-fraud solution, managing architecture and technology choices, and optimizing database performance for over 3 million users. Prior to this role, Nikita was a Senior Developer at Double Data, focusing on Big Data products and algorithm optimization, and served as API Team Lead at HeadHunter Group, where responsibilities included developing public API services and improving internal systems. Nikita began the professional journey as a Developer at Cucumber.ru and later advanced to Technical Team Lead at RuSoft, managing a team and designing a document management system. Educational credentials include a Specialist degree in Computers, Computer Systems and Networks from the National Research University of Electronic Technology (MIET).