Building practical LLM applications — RAG, agentic systems, and the production engineering around them.
- pension-rag — Q&A chatbot over Aviva and UK gov pension documents. Hybrid BM25 + vector retrieval with Cohere reranking, ChromaDB, served via FastAPI with a Next.js frontend.
- GDG_AI_DEV_CAMP_2026 — Multi-agent systems coursework; capstone is a culture concierge full-stack agent app.
- ai_driving_route_planner — Streamlit app that finds round-trip driving routes with parking-friendly stops, using Google Places, OpenRouteService, and GPT review classification.
RAG · agent patterns · prompt engineering · LLM evaluation · production concerns (latency, cost, safety, observability)
- Email: jysoo6190@gmail.com
- LinkedIn: yeonsoo-jang