Contributed to frontend and backend development across two repositories, focusing on scalable architecture and user experience. In Volodymyr-Sainchuk/team-project, established a Vite-based frontend scaffold, enhanced the user data model with a new name field via SQL and Ruby, and improved typography and responsive layouts using CSS and JavaScript. Delivered accessibility and maintainability improvements, including refined header, hero, and reviews sections. In Iryna-Novikova/goit_js_team17_project, implemented a responsive header navigation with mobile menu support, keyboard accessibility, and stable UI interactions. Emphasized clear commit practices and incremental refinements, ensuring maintainable code and smoother collaboration for future development cycles.