Seasoned Senior FE Engineer with 7+ years of experience in building high-performance web applications (fintech, foodtech). Proficient in modern JavaScript frameworks and libraries, with a strong focus on performance optimization, accessibility, and user experience. - Strong expertise in React ecosystem, state management (Redux, MobX, Zustand), API integrations (GraphQL, gRPC) and UI/UX performance tuning. - Led feature development teams, implemented complex payment systems, and optimized applications for SEO and performance. - Author of technical articles, sharing insights on frontend architecture, performance improvements, and modern development approaches. - Active contributor to developer communities, engaging in discussions and advocating best practices. - Participated in frontend development at STON.fi DEX, ensuring smooth UI performance for thousands of transactions daily. - Optimized critical UI flows at Delivery Club (VK/Yandex), improving page load speed and increasing conversion rates.