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Sergey Ostapenko is a seasoned mobile engineer with extensive experience in React Native development. Currently serving as a Senior Mobile Engineer at Portside since June 2022, Sergey focuses on creating a job search application for the business aviation sector. Prior to this role, Sergey held positions including Senior React Native Developer at Overonix Technologies, where the development of trading applications for stock and currency exchanges was a key responsibility. Additionally, experience includes a React Native Developer role at Parimatch Tech and a Mobile Application Developer position at Payoneer, contributing to an international payments app. Sergey began a career as a JavaScript Developer at Mauris, leading cross-platform mobile and SPA application projects. Sergey holds a degree in Computer Networks and Telecommunications from the National Technical University of Ukraine 'Kyiv Polytechnic Institute'.