Led a four-person team to 37th in Asia-Pacific at the Google Cloud GenAI Academy Hackathon, a submission tier restricted to developers who cleared every codelab in a 192,660-developer program. Built the entire backend and agent layer in 3 days: a LangGraph orchestrator running four Gemini-backed agents for curriculum design, resource retrieval, calendar scheduling, and persistence. Shipped 21 FastAPI endpoints covering Google OAuth 2.0, HMAC-signed guest sessions, multimodal syllabus ingestion, quizzes, and a chat-history-aware tutor. Wired the YouTube Data API and Google Calendar in as Model Context Protocol tools, turning one image or text goal into a scheduled 7-day plan; ran it with 25+ early users.