Sergei Nikitin

Available to hire

Experience Level

Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
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Language

English
Beginner
Russian
Fluent

Work Experience

React Native Developer at Arcadia Global Solutions
May 1, 2025 - November 1, 2025
Led deep refactor of mobile apps for a school system; migrated codebase from JavaScript with Flow.js and Redux to TypeScript and Zustand; collaborated with cross-functional teams to adopt new technologies and improve performance.
Mobile Developer at Nitka Technology
December 1, 2023 - March 1, 2025
Designed and developed iOS/Android software using React Native/TypeScript; participated in product planning; worked with Xcode/Android Studio/WebStorm; implemented CI/CD changes; conducted code reviews.
Senior React Native Developer at Mercury Development, LLC
September 1, 2023 - November 1, 2023
Preparation of project launch; set up code quality tools; maintained and updated CI/CD processes (Gitlab CI, Fastlane); conducted code reviews.
Senior Mobile Developer (React Native / Flutter) at InGames.io
December 1, 2022 - July 1, 2023
Designed/developed iOS/Android apps using React Native/TypeScript; contributed to Flutter/Dart/BLoC variant; maintained CI/CD processes (Gitlab CI, Fastlane); conducted code reviews; published apps to Apple App Store and Google Play.
Mobile Development Team Lead at Qlean.ru
March 1, 2022 - March 1, 2023
Led development of a mobile application; product management and inter-team coordination; developed iOS/Android using React Native/TypeScript/Objective-C/Java; analyzed Flutter viability; maintained CI/CD (Gitlab CI, Fastlane); recruited.
Mobile Development Team Lead at Mango Telecom
May 1, 2019 - February 1, 2022
Led mobile app development team; product management and cross-team coordination; evaluated Flutter and Kotlin Multiplatform; published to App Store/Play Market; maintained CI/CD; conducted code reviews.
Senior React Native Developer at TalentTech
July 1, 2018 - April 1, 2019
Designed and built iOS/Android apps from scratch to publication using React Native/JavaScript/Objective-C/Swift/Java; participated in recruitment; conducted code reviews; published on App Store/Play Market.
iOS Developer at Nmarket.PRO
December 1, 2017 - June 1, 2018
Development and maintenance of NMarket.Pro client; iOS app development with Xcode/JSON/RESTful API/HTTP/Realm; support, debugging; Agile/Scrum; Git.
React Native Developer at Goglia Nutrition
August 1, 2017 - November 1, 2017
Design and development for iOS/Android using React Native; work with Xcode/Android Studio/JSON/RESTful API; contributed to G-Plans client app; participated in Agile/Scrum.
Mobile Developer (iOS / React Native) at AnjLab
August 1, 2014 - August 1, 2017
Designed and developed software for iOS; React Native development; Xcode, XML, JSON, RESTful API, push notifications; maintained and debugged across multiple clients; Jira/Agile; Git/SVN.
iOS Developer at Self-employed
February 1, 2014 - August 1, 2014
Independent iOS development; Xcode, Interface Builder, XML/JSON, RESTful API, Core Location, push notifications; built modules for iBuildApp platform; published apps.
iOS Developer at iBuildApp
April 1, 2012 - February 1, 2014
Designed and developed iOS applications; modular system development; automated build system contributions; Xcode, Interface Builder, XML/JSON, RESTful API; publishing to App Store.

Education

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Qualifications

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Industry Experience

Software & Internet, Professional Services, Education, Gaming, Media & Entertainment