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Andrii Arkhipov

React Native Developer | Mobile Developer

React Native Developer with 3+ years of experience building mobile applications for iOS and Android. Strong experience in performance optimization, UI/UX improvements, and CI/CD automation.

Professional Experience

React Native Developer

KLR Bus KLR Bus|February 2024 - Present

Zhytomyr, Ukraine (Remote, Full-time)
  • Implemented CI/CD pipeline using GitHub Actions & XCode Cloud, eliminating 100% of manual build and deployment steps
  • Maintained 99.98% crash-free rate across 100,000+ active users through analytical approach to bug tracking and rapid fixes
  • Optimized release workflow using Runway, reducing manual operations by ~90% and ensuring consistent release quality
  • Contributed to a 4.5/5.0 App Store and Google Play rating through performance optimizations and UI/UX best-practice improvements
  • Conducted 7 technical interviews and onboarded a Middle React Native Developer, boosting team productivity and delivery velocity

React Native Developer

Springs Springs|March 2022 - October 2023

Zhytomyr, Ukraine (Remote, Full-time)
  • Developed applications for US and German clients, improving maintainability through codebase refactoring and tech debt reduction
  • Implemented integration layer for Smart Home app by reverse-engineering APIs and using secure tunnel connection to private network
  • Improved UI/UX by reducing crash rate and improving app performance and stability
  • Conducted 10+ technical interviews and helped to close a React Native developer position

Intern React Native Developer

Beetroot Beetroot|August 2021 - January 2022

Zhytomyr, Ukraine (Internship)
  • Designed and developed Instagram-inspired mobile application, including UI/UX design, navigation structure and state management
  • Implemented Firebase Auth for user authentication and Cloud Firestore for real-time data synchronization
  • Integrated location-based features using Google Maps and Places API for photo sharing with geolocation, search and autocomplete
  • Worked with native device features including location services, camera, photo gallery, local storage, and permission management

Front-End Developer

Viseven Viseven|February 2021 - March 2022

Zhytomyr, Ukraine (Hybrid, Full-time)
  • Developed 150+ pixel-perfect, production-ready HTML emails using Vue.js and table-based layouts for major pharmaceutical clients (Bayer, AbbVie, Abbott), ensuring consistent rendering across email clients (Outlook, Gmail, Apple Mail)
  • Optimized email performance via code minification and asset compression, reducing load times and improving UX
  • Maintained internal component library, resolved bugs, and implemented new templates

Education

Front-End Development, Advanced JavaScript/React — Beetroot Academy2020-2021
Master's Degree, Telecommunications Technology and Devices — Zhytomyr State Technological University2009-2014

Skills & Technologies

Development
JavaScript, TypeScript, React Native, Kotlin, Jetpack Compose, React.js, Vue.js, HTML5, CSS3
State Management
Redux (Toolkit, Saga), Zustand, React Query, RTK Query
Mobile & Infrastructure
CI/CD (GitHub Actions, XCode Cloud), Runway, Firebase, AppsFlyer, Push Notifications
Libraries & API
React Navigation, Reanimated, RN Vision Camera, RN Maps, Google Places API, Axios
Tools & Testing
Jest, Detox, Git, Figma, XCode, Android Studio

Languages