Worked on the onOffice-Web-Org/oo-wp-plugin repository, focusing on backend development and PHP to enhance reliability and maintainability. Addressed a critical issue where estate detail page titles could be null by strengthening the title sanitizer and removing unsafe null handling, improving data integrity. Enhanced property search filters with robust boolean logic and persistent handling for balcony and rent-versus-purchase price filters, refining user input differentiation. Consolidated filter logic within the plugin, eliminating legacy code and improving API integration and cache key accuracy. Added targeted logging to support observability and debugging, ensuring future enhancements are easier to implement and maintain over time.