Roman Zaritskyi contributed to the webitel/client, webitel/crm, and webitel-ui-sdk repositories by delivering six features and resolving three bugs over one month. He enhanced localization by updating Russian and Ukrainian permission labels, improved access control UX through mixin refactoring, and upgraded the UI SDK for greater stability. In webitel/crm, he enforced permission-based restrictions on table actions, strengthening security and user experience. Roman also refined UI layouts using SCSS and Vue.js, and addressed dependency management with routine SDK version bumps. His work demonstrated a full stack approach, balancing front-end improvements with backend integration and internationalization requirements for robust, maintainable code.