• Launched an open-source (github.com/pagenow) Chrome extension for real-time activity sharing.

• Designed and built a secure and scalable serverless real-time presence and chat API from the ground up using AWS services, like Lambda, Elasticache (Redis), DynamoDB, and API Gateway.

• Designed and built a user information handling backend API from the ground up. Deployed the service with load balancing and auto-scaling to AWS using Terraform.

• Built the extension popup and the injected web app with an event-driven design using React and Angular.

• Conducted surveys and analyzed user activity data to release features and UI/UX enhancements iteratively.

• Implemented group and domain level dotfile support and service port validation upon kernel creation.

• Developed storage proxy support for XFS and advanced features for the Backend.AI virtual folder system.

• Developed a full-stack (Angular, Java, MongoDB) web application used by traders in PWM (Personal Wealth Management).