About (English)

AI developer at Samsung Fire & Marine Insurance. Most of my work starts with the people who actually do the job. I sit with them, learn the order they work in and what they check along the way, then rewrite that as requirements and decision criteria a system can follow.

I also teach AI inside the company, including Claude Code sessions for the CEO, CFO, and CAIO.

I created and published harness engineering workshop materials in HTML and PDF, explaining how agents use tools, delegate work, and verify results.

Before this I built a real-time interpretation system and RAG-based financial advisory chatbots at the KB Kookmin Bank Financial AI Center.

Ph.D. in computer science from Sogang University, on speech recognition. I proposed a way to combine speech recognition and language models using WFST, and published 14 first-author papers, three of them SCI-indexed.

I am an OpenClaw Contributor. I fixed missing automatic speech in queued follow-up replies; PR #181592 was merged in October 2026. I have also contributed to HuggingFace, ESPNet, Kaldi, and SGSpeech, and taught 15 expert-level speech recognition courses.

I write a Korean series called 직접 쓰는 AI교양 on Threads.

The rest of the site is in Korean: Work, Teaching, and Writing.