Worked on enhancing database performance for the haiwen/seafevents repository by optimizing the Audit and Activity Tracking features. Focused on reducing query latency, the developer removed redundant indexes and introduced composite indexes on the FileTrash and Activity tables, specifically targeting queries filtered by repository ID and timestamp. This involved updating both the Python ORM models and the MySQL schema to ensure consistency and data integrity. Leveraging skills in Python, SQL, and database optimization, the changes enabled faster retrieval of audit trails and activity dashboards, supporting improved scalability and responsiveness as data volumes increased, while maintaining a clean and maintainable codebase.