Humam Al-Shami contributed to hack-duke/portal.hackduke.org by developing targeted frontend features focused on mobile responsiveness and user experience. He enhanced the HeroBackground component to optimize mobile-viewport rendering, ensuring visual consistency and reducing layout clutter on screens under 600px. Using React, JavaScript, and CSS, he implemented a mobile-first approach that improved stability across devices. In a separate update, he extended the login page countdown deadline, refining the onboarding flow and maintaining portal reliability with a well-documented, low-risk change. His work demonstrated careful attention to responsive design and traceable engineering practices, delivering incremental improvements over a two-month period without introducing regressions.