Ivan Sivak is an experienced software engineer with a strong background in mobile application development. Starting as an Android Engineer at Constanta from May 2018 to March 2019, Ivan developed a sports events mobile application that gained over 100,000 daily active users and contributed to improving application architecture. Ivan then served as Lead Mobile Engineer at X5 Retail Group from April 2019 to June 2025, where a food recipes mobile application was launched, achieving over 1 million installs and 300,000 monthly active users. In this role, Ivan implemented popular architecture patterns and maintained application build scripts. Currently, Ivan works as a Software Engineer at Meta since June 2025. Ivan holds a Master of Science in Applied Nuclear Physics from the National Research Nuclear University and additional education in Computer Science and Information Technology from the Saint Petersburg Academic University.
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