Worked on data quality and localization maintenance for the unicode-org/cldr repository, focusing on cleaning and consolidating Airbnb locale data within the CLDR Locales.txt file. Applied data management skills to uncomment and reformat locale entries, ensuring alignment with CLDR standards and reducing the risk of downstream parsing errors. Utilized text processing techniques to add and map Airbnb-specific locales, improving the consistency and completeness of localization data. Established a repeatable approach for future locale maintenance, including documentation hints for ongoing updates. The work enhanced localization reliability and provided a foundation for maintaining high-quality locale data across related systems and applications.