During January 2025, Jae Won worked on the PWABuilder repository, focusing on maintaining deployment velocity amid backend packaging instability. He engineered a temporary frontend workaround using TypeScript, enabling the enableWebAppWidgets flag and ensuring manifestUrl was populated to prevent deployment errors. This solution allowed builds to proceed while backend teams addressed the root issue, minimizing customer impact and downtime. Once the backend was stabilized, Jae Won reverted the workaround to restore original behavior, demonstrating disciplined release management and feature-flag handling. His work reflected strong skills in bug fixing, frontend development, and full stack problem-solving within a collaborative engineering environment.