Umair Sadiq

Web and Mobile Developer

Fiverr • Freiberufler

Oct 2022 - Present • 3 yrs 10 mos

• Spearheaded the complete redesign and refactoring of a privacy-focused browser’s core UI and user flows using Kotlin, Jetpack Compose, and React Native, including a new home screen, bottom navigation, tabs interface, and settings menu, significantly improving usability and visual consistency. • Implemented advanced animations and state management for the home-screen search bar and cover image using Jetpack Compose animations, Kotlin Flow, React Native Reanimated, and centralized state management, ensuring smooth behavior across new tabs, app background/foreground transitions, and browsing sessions. • Integrated and managed VPN server connections and Tor network functionality, including custom connection-status panels, circuit information, bridge configuration, connection retries, and real-time state updates. • Diagnosed and resolved a complex multi-tab issue where home-screen previews and search-bar states behaved inconsistently, delivering stable and predictable behavior across all tab states. • Redesigned and developed an intuitive tab-management interface, improving navigation, tab creation, switching, closing, and session control. • Optimized the complete application UI for Android phones and tablets in portrait and landscape orientations, ensuring responsive layouts and consistent behavior across different screen sizes. • Executed project-wide refactoring and renaming of classes, files, components, variables, methods, and resources, improving code readability, maintainability, and architectural clarity. • Designed and implemented complete onboarding, promotional, and subscription flows with timers, package selection, purchase states, and restoration handling, creating a smooth first-time experience and improving feature discovery. • Integrated Firebase Analytics and Crashlytics for user-event tracking, conversion analysis, error reporting, and application stability monitoring.