● Led the development of the iOS application as a project lead, mentoring a team of developers and coordinating development tasks. ● Took full ownership of the application release cycle, managing the process from concept to successful publication in the App Store. ● Refactored and optimized key modules, cutting startup time by ~30% and improving overall application performance. ● Implemented real-time video calling and streaming functionality using WebRTC, AVFoundation, and CallKit. ● Designed and developed an in-app chat system supporting real-time messaging and stable communication between users. Research Projects: — Comparative analysis of the object protection system in Unix-Linux and Windows OS. — Product recognition based on its characteristics using ML Kit. — Game Tanks written in C++ using the Qt framework.

● Led the development of core photo and video editor functionality, including smooth background and object removal, subject isolation, blurring, filter application, and multi-layer compositing. ● Refactored core architecture modules, cutting new feature development and integration time by 25%. ● Proposed a new application flow, the implementation of which enhanced user conversion by 15%. ● Worked within a subscription-based business model, implemented paywall flows and in-app purchase integration using StoreKit.

● Developed a social networking application and an online booking service for beauty salons. ● Conducted code reviews to maintain consistency and code quality across the codebase. ● Collaborated with designers, back-end developers and customers to identify solutions for critical issues and features. ● Rewrote legacy Objective-C code to Swift, eliminating legacy dependencies and improving readability and maintainability. ● Proposed and implemented A/B testing within the project, resulting in a 20% increase in user engagement and a 15% improvement in conversion rates.

● Built and shipped screen casting applications using GoogleCast. ● Built AI-powered applications, including the AI keyboard, AI interviewer and AI Resume builder. ● Implemented automation of development and release workflow for iOS apps and attached application analytics.