Worked on the iOfficeAI/AionUi repository to deliver Ukrainian language support across user interface components and documentation, expanding accessibility for Ukrainian-speaking users. Leveraged React and TypeScript to integrate translations and update i18n infrastructure, ensuring consistency and maintainability through linting and formatting improvements. Developed comprehensive unit tests in JSON and TypeScript to validate translation accuracy and duration formatting, strengthening localization quality assurance. Addressed code quality by removing duplicate keys and unused imports, contributing to a more stable codebase. Updated documentation to reflect new localization features, supporting both end users and developers while laying groundwork for future internationalization enhancements and streamlined releases.