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Work experience

Middle React Native Developer

from 01.2023 to 08.2026 (3 years 8 months)
GonSolutions, Uzhhorod (IT)

Developed and maintained cross-platform mobile applications using React Native and TypeScript for enterprise, B2B, and fintech projects.
Implemented Offline-First architecture, enabling users to work with critical data without an active internet connection and synchronize changes when connectivity was restored.
Built and integrated REST APIs using Redux Toolkit and RTK Query, including caching, data synchronization, and optimistic updates.
Developed complex business features such as accounting workflows, invoices, contracts, PDF generation, geolocation, maps, and payment integrations.
Integrated native iOS and Android functionality, including geolocation, Google Maps, Stripe, Apple Pay, and Google Pay.
Improved application performance through optimized rendering, FlatList optimization, memoization, and efficient state management.
Participated in code reviews, debugging, testing, and production issue resolution.
Set up and maintained CI/CD pipelines with GitHub Actions and EAS Build for automated mobile application builds and releases.
Worked closely with backend developers, QA engineers, designers, and project managers to deliver features and resolve technical issues.
Successfully delivered and maintained applications published on the App Store and Google Play.

Knowledge and skills

• JavaScript
• HTML
• CSS Modules
• CSS
• Firebase
• Flutter
• Kotlin
• Java
• Git
• WebView
• Semantic HTML
• SQLite
• Conflict-free
• Swiper