In December 2025, Chen delivered a Notification Refactor for the CenterForOpenScience/angular-osf repository, focusing on clarifying the notification frequency enum by updating the value from "instant" to "instantly" to improve user experience. Chen implemented Angular front-end support, integrating the new notification flow and ensuring the changes were reflected through a version bump and detailed changelog. The work involved close coordination with backend teams to align the refactor across the stack, with all updates traceable to specific commits and pull requests. Chen utilized Angular, TypeScript, and JavaScript, demonstrating solid front end development skills within a focused, month-long project.