Joy Liu developed a Kubernetes-based solution for the pennlabs/penn-mobile repository, focusing on secure and reliable push notification delivery. She implemented a feature that mounts Celery credentials as Kubernetes volumes, enabling direct access to APNS and FCM secrets required for push notifications. This approach streamlined credential management, reduced operational friction, and aligned with best practices for secret handling in cloud infrastructure. Using TypeScript and leveraging her expertise in Kubernetes, Joy delivered a minimal, isolated change that minimized risk and integrated smoothly with existing deployment workflows. Her work demonstrated depth in cloud infrastructure and addressed a specific operational need without introducing bugs.