Melvin Nacfil

Owned features across multiple interconnected front-end and back-end repositories for a client-facing event registration, check-in, and kiosk application platform for Philippine race event organizers. Built and launched a detailed check-in flow as an alternative to QR scanning, reducing attendee wait times by 50% during peak hours. Reduced badge printing time by 48% through optimizations across multiple repositories, speeding up on-site registration. Built a modular kiosk UI framework enabling clients to customize kiosk interfaces without back-end changes. Refactored legacy code and resolved production bugs with cross-functional teams under tight deadlines.

Built and maintained front-end features for internal Samsung dashboards including the ML platform and related services using React and JavaScript. Developed dashboard views displaying AI model resource usage such as GPU/CPU utilization and file storage details. Identified rendering and load bottlenecks and improved performance with caching, asset minification, and code-splitting to speed up page loads. Modernized legacy designs into responsive, pixel-perfect React interfaces and incorporated AI coding assistants and modern tooling into development workflows to speed delivery.

Built RESTful APIs using Node.js and Express for CRUD operations and data processing. Integrated back-end APIs into React front-ends with reliable asynchronous data handling and clear error states. Diagnosed and fixed production issues after deployment to maintain system stability.