MyungHwan User

I’m an AI engineer specializing in LLM-driven applications, multi-agent systems, and autonomous AI workflows. I focus on agent orchestration, RAG pipelines, and end-to-end AI application development, using modern LLM APIs.

In my projects, I built WorthBrain, an autonomous multi-agent deal intelligence system that discovers and evaluates online product deals using hierarchical agents and RAG. I also developed LLaMA 3.1 price prediction via QLoRA/PEFT fine-tuning, including dataset curation and 4-bit quantization with BitsAndBytes.

I enjoy turning ideas into complete, automated systems—like an agentic job search pipeline that uses multi-stage LLM evaluation and multi-source web search with fallbacks.