Worked on the pimcore/admin-ui-classic-bundle repository to address a permissions-based language handling issue in the admin interface. Focused on backend development using PHP and YAML, the developer updated the TranslationController to fetch available languages according to each admin’s permissions, ensuring that only authorized translations are loaded per domain. The workflow configuration was revised to support versioning for translations, and YAML files were synchronized to reflect these changes. This fix eliminated incorrect translations in the admin UI, improved security by aligning language data with user permissions, and enhanced maintainability through a clearer, more robust versioning and workflow process.