Built Black Rose (blackrose.asia), a gaming and esports community platform led by Alodia Gosiengfiao, end-to-end using React, TypeScript, Tailwind CSS, and Supabase. Developed user profiles with Discord account verification and ROSE role-gated access, team and roster management for tournament participation, game discovery, and a Hall of Champions tracking tournament winners. Built an admin console with tournament CRUD, Single Elimination, Swiss, and Double Elimination bracket formats, game management, and audit logging, supporting tournaments including an officially partnered VALORANT / Riot Games event.