Worked on the lennycolton/vatglasses-data repository to improve data integrity and structure within a one-month period. Focused on enhancing sector organization by splitting the Kavos and Sitia sectors into upper and lower divisions, enabling clearer data differentiation and more precise analytics. Addressed data accuracy by correcting the ownership list for Heraklion TMA, removing an erroneous entry to ensure reliable representation. Utilized JSON for data manipulation, applying skills in data structuring and validation to support governance requirements. The work emphasized careful management of structured data, resulting in improved reliability and maintainability for downstream processes and analytics within the repository.