During January 2026, Edmund Teo enhanced the LifeSG/web-frontend-engine repository by delivering a feature that enables flexible file upload response handling, supporting both flat and nested data structures. He updated the upload flow and refined the logic for file size determination and display to accommodate these formats, ensuring alignment with evolving product specifications. Edmund utilized React and TypeScript to implement these changes, extending Storybook documentation to illustrate the new nested response capabilities. This work improved the reliability and usability of the file upload experience, positioning the product for future scenarios involving complex data, and demonstrated robust, spec-driven frontend engineering.