About

This is Rui Bian's personal engineering knowledge base for backend systems, AI infrastructure, production ML/data work, and role-specific learning notes.

Public notes teach transferable concepts. Private notes, drafts, credentials, unreleased code, internal URLs, proprietary diagrams, and sensitive production details are excluded from public builds.

Current Focus

• Python FastAPI services and backend APIs
• Cloud deployment across Cloudflare, GCP, Vercel, and GPU providers
• API design, Postgres, MongoDB, and durable data modeling
• LLM API integration, reliability, observability, and secure operations
• Creative AI and animation pipeline infrastructure