Worked on the GoogleChromeLabs/ps-analysis-tool repository to deliver a feature relocating the Cookies section from Tracking Protection to Site Boundaries within the privacy UI. This involved a comprehensive UI refactor, navigation updates, and enhancements to end-to-end tests to ensure stability and alignment with the new structure. Applied frontend development skills using JavaScript and TypeScript, focusing on improving the discoverability and consistency of privacy controls. Demonstrated a disciplined approach to refactoring and test engineering, maintaining a clear Git and pull request workflow. The work addressed both user experience and technical maintainability, contributing to the ongoing evolution of the privacy interface.