olegt

Was responsible for developing and maintaining the restaurant ordering section of the main food delivery app. Optimized a large restaurant product catalog by eliminating scroll staggers and improving product cards rendering performance by ~20%. Designed a solution to minimize re-renders in virtualized lists using React Context API and memoization. Implemented anchored navigation in flat catalog using react-native-reanimated. Led component migration from React Native to Android's native Jetpack Compose UI, focusing on maintainability and native performance.

Led implementation of core features in a Telco self-service app, managing the entire lifecycle — from design approval and task decomposition to production release. Developed a reusable core application that served as the foundation for client-specific solutions across multiple teams. Solved architectural challenges to create an extendable codebase, including a shared business logic library for both web and mobile apps, and a GraphQL schema extension mechanism using code generation. Introduced development practices such as TypeScript, ESLint, and unit testing, which were later adopted by other teams as part of the standard workflow.