Santiago Gomez Salazar worked on the Nix-Security-WG/nix-security-tracker repository, focusing on a critical data-model refactor to improve analytics reliability and data integrity. He addressed a core issue by redesigning the NixpkgsIssue model, introducing a TimeStampMixin to ensure consistent timestamping with created_at and updated_at fields. This required careful schema evolution and updates to related queries and business logic, enabling accurate timestamp-based ordering throughout the tracker. Santiago applied his expertise in Python, Django, and database migration to deliver a robust solution that normalized timestamp data, ultimately enhancing the reliability of issue tracking and supporting more accurate analytics for the project.