Aliaksei User

Architected and built a high-load greenfield e-commerce application from scratch, implementing Headless CMS data prefetching and list caching to cut catalog render latency by 42.6% and achieve 59.2 FPS on low-end devices. Engineered advanced Deep Linking infrastructure integrated with push notifications and Feature Flags, driving marketing campaign conversion rates up by 18.4%.

Engineered iOS Live Activities using Swift, SwiftUI, and Native Modules with deep linking to AI-powered dietary analysis, driving user session retention up by 19.3% during active 21-day meal tracking cycles. Optimized complex SVG charts and calendar components for BMI and calorie logging, boosting UI render frame rates from 32.1 FPS to 58.9 FPS on low-end mobile devices.

Architected real-time cross-app messaging pipeline using Firebase and Gifted Chat, reducing chat payload overhead by 41.3% and lowering unread state sync delays down to 0.4s. Implemented map-based provider search with Google Maps API caching, decreasing map render response times by 38.6% and raising location search conversion by 12.4%.

Engineered video stories with media pre-fetching, boosting user engagement by 31.5%.
Re-architected state via Redux Toolkit, cutting memory usage by 26.7% & crashes to 0.2%.
Built multi-criteria job search filtering, accelerating query response time by 38.1%.
Optimized REST APIs and FCM push notification pipeline with a 99.1% delivery rate.

Migrated to TypeScript & Redux Toolkit, cutting errors by 34.8% & boosting velocity by 22.5%.
Refactored React Navigation with lazy loading, cutting cold-start load time from 4.2s to 1.6s.
Built Reanimated flashcard UI & WebView stats charts, driving weekly retention to 58.6%.
Xcode & Android Studio profiling optimized performance, lowering crashes down to 0.3%.

Master's degree in Applied Software Development from Belarusian State University, Minsk, from 2023 to 2025.

Bachelor's degree in Computer Science from Belarusian State University, Minsk, from 2019 to 2023.