Sihang L.

AI & Full-Stack Product Engineer | UC Berkeley I design and ship complex digital products end-to-end. Recent builds include: • AI-driven multimodal video analysis platform (Gemini integration, highlight ranking algorithms, large-file upload systems up to 20GB, timeline remapping) • Production e-commerce system with server-side price validation, route optimization (Haversine), row-level security, and automated capacity management • Cross-platform campus super app with real-time messaging, matching algorithms (Jaccard similarity scoring), and multi-module architecture I specialize in: – Architecting scalable systems – Integrating AI into real products – Designing secure backend logic – Building fast, polished frontend experiences I don’t just write code — I build systems that run reliably in production.