Building industrial AI, from control rooms to humanoid robots.

Started in power plant automation and model predictive control, then developed anomaly detection, forecasting, and computer vision models for energy and manufacturing. Led RAG, agent, and Text-to-SQL services for enterprise clients, and now leads GenON's Physical AI humanoid product, GenP, from product definition to VLA training pipelines.

1. 2008 – 2015

   Control & Automation

   Designed automation for power and energy plants, then built model predictive control and PID tuning tools for power generation.

2. 2015 – 2022

   Data Science & ML

   Applied ML to the power grid and factories, from solar power forecasting and transformer anomaly detection to a machine vision platform.

3. 2023 – 2026

   Generative AI & Agents

   Led RAG, agent, and Text-to-SQL services for enterprises, alongside industrial ML for anomaly detection and process optimization.

4. 2026 –

   Physical AI

   Leads a humanoid robot product that unifies voice conversation, VLA manipulation, autonomous navigation, and whole-body control in one workflow.

Projects

2020

6 featured

Patents

1515

7 registered · 8 filed

Software

1010

8 registered · 2 pending

Books

22

Programming

Python for ML and services, C/C++ for control and embedded code, plus SQL and TypeScript.

AI/ML

LLM agents and RAG with LangChain/LangGraph, LiteLLM, OpenRouter, FastMCP, and Braintrust; anomaly detection, time-series forecasting, and computer vision with PyTorch and scikit-learn.

Robotics

Humanoid development on Unitree G1 and AgiBot X2 SDKs, VLA training, simulation in Isaac Lab and MuJoCo, and SLAM-based navigation.

Serving & Infrastructure

Model and LLM serving with FastAPI, vLLM, and Ollama on Docker and AWS, with MLflow, PostgreSQL, and vector databases (pgvector, Qdrant).

Domains

Energy and utilities (thermal power, renewables, ESS), petrochemical and steel processes, manufacturing, healthcare, and industrial automation (PLC, DCS).

1. 01

   Jul 2026 – PresentIn progress

   GenP Physical AI Humanoid Product

   Leading development of GenP, an end-to-end Physical AI humanoid product built on a common core with domain profiles for customer-specific deployments.

   • Robotics
   • Physical AI
2. 02

   · Global F&B companyOct 2026 – Jan 2027In progress

   Docent Humanoid Robot for a Brand Experience Center

   Delivering a docent humanoid robot that guides visitors through a brand experience center with voice conversation and autonomous navigation.

   • Robotics
   • Physical AI
3. 03

   · Samsung ElectronicsFeb 2025 – Aug 2025

   SCM Data Analysis and Work Support Service

   Led an LLM service that analyzes supply chain management (SCM) data and supports planners' daily work with Text-to-SQL and agents.

   OutcomeAchieved 95%+ SQL generation accuracy on the evaluation set.

   • Manufacturing
   • LLM Agents & RAG
4. 04

   · Samsung ElectronicsDec 2024 – Feb 2025

   Online Consultation and Product Recommendation Assistant

   Led an agent and RAG assistant that supports online customer consultation and recommends products.

   OutcomeAutomated answers for 18 customer scenarios previously handled one by one by agents, and handed the service over to operations for online and offline stores.

   • Manufacturing
   • LLM Agents & RAG
5. 05

   · LOTTE Fine ChemicalMar 2024 – Nov 2024

   Raw-Material Price Forecasting and Market Analysis Dashboard

   Built a raw-material price forecasting model and market analysis dashboard to support purchasing decisions, as a PoC within the AI master plan engagement.

   OutcomeCut forecast error (MAPE) from 5.9% with the rule-based method to 1.3%, well under the 10% target.

   • Petrochemical & Steel
   • Forecasting
6. 06

   · LOTTE Fine ChemicalMar 2024 – Jan 2025

   Green-Material Inventory Blend Optimization

   Ran a PoC that optimizes blend combinations of green-material inventory, as part of the AI master plan engagement.

   • Petrochemical & Steel
   • Control & Optimization

1. Jul 2026 – Present

   GenON, R&D Group

   Director / AI Product Engineer

   Lead the Physical AI humanoid product as Product Owner (PO), defining the product, technology tree, and commercialization roadmap, and manage client projects as Project Manager (PM). Design the integrated architecture for voice conversation, scenario execution, VLA, VLN, navigation, and motion, and build the robot control panel. Propose and run new Physical AI and agent-system projects and hire talent.

2. Mar 2024 – Aug 2025

   PwC Consulting, Digital & AI

   Director / Senior ML Engineer

   Developed generative AI services (RAG and agents), ML-based equipment diagnostics, price and demand forecasting, and control optimization. Proposed new projects, ran AI training for firm-wide and division staff, and hired talent.

3. Apr 2023 – Apr 2024

   MakinaRocks, AI Project Team

   Part Leader / Senior ML Engineer / PO

   Developed anomaly detection, control optimization, and guidance models as well as RAG-based services, and supported LLMOps and MLOps environment setup. Planned new projects, improved the traceability and reproducibility of project deliverables, researched ML technology trends, and hired talent.

4. Mar 2021 – May 2022

   Samsung Electro-Mechanics, Equipment Technology Research Institute

   Principal Researcher

   Built a software platform for data-driven anomaly detection and predictive maintenance and for running deep learning models. Analyzed and visualized manufacturing equipment performance and logistics data, and taught data analysis to employees.

5. Jul 2010 – Jun 2020

   KEPCO (Korea Electric Power Corporation), Data Science Lab

   Senior Data Scientist

   Researched anomaly detection algorithms, time-series forecasting, and deep learning, including sequence and generative models. Built the AI and data science roadmap, identified and planned new research projects, and planned research infrastructure and analytics environments.

6. Jan 2008 – Jul 2010

   POSCO E&C, Energy Business Division

   Automation Design Engineer

   Designed electrical and automation systems for power and energy plants, designed and built data acquisition infrastructure, developed control algorithms, and supported commissioning.

1. 01

   AI Daybook

   Active

   Built a daily AI news edition that collects global and Korean news, open-source projects, models, and papers, then selects, summarizes, and ranks them with an LLM for under $0.10 per run.

   TypeScript / Next.js / SQLite / Claude API / GitHub Actions / GitHub Pages

   Repository: AI DaybookLive demo: AI Daybook
2. 02

   AI Wiki

   Active

   Designed a domain-agnostic template that turns papers, repos, articles, and videos into a searchable wiki with Claude Code or Codex, answering only from collected sources.

   Python / Claude Code / Codex / GitHub Actions / GitHub Pages

   Repository: AI WikiLive demo: AI Wiki
3. 03

   Euro Digest

   Active

   Built a static site that publishes a daily Korean briefing of overnight European football, grouping international and Korean news by event and linking to the originals.

   TypeScript / Next.js / Claude API / Tailwind CSS / GitHub Actions / GitHub Pages

   Repository: Euro DigestLive demo: Euro Digest
4. 04

   LinkDigest

   Active

   Built a link curation service that summarizes saved articles and YouTube videos with LLMs and sends a weekly newsletter digest.

   TypeScript / Next.js / Supabase / Tailwind CSS / Resend

   Repository: LinkDigestLive demo: LinkDigest
5. 05

   LunchMate

   Active

   Built a web app that picks lunch near the office in seconds, recommending three nearby restaurants or letting coworkers decide by vote.

   TypeScript / Next.js / Supabase / Tailwind CSS

   Repository: LunchMateLive demo: LunchMate
6. 06

   MCP Connectors

   Active

   Built a monorepo for building, testing, and running MCP servers for internal systems, with spec-driven Claude Code skills, shared guardrails, and a local Inspector and LLM chat UI.

   Python / FastMCP / MCP / Next.js / TypeScript / Docker

   Repository: MCP Connectors
7. 07

   pyRoad

   Active

   Built an interactive Python learning platform for elementary school students with a quest-based curriculum, an AI animal tutor, and in-browser Python execution.

   TypeScript / Next.js / Supabase / Pyodide / Claude API

   Repository: pyRoadLive demo: pyRoad
8. 08

   OathKeeper

   In progress

   Built a LangGraph agent that parses B2B AI development deals, scores them on seven criteria for a Go/No-Go verdict, estimates resources and risks, and retrieves similar past projects.

   Python / FastAPI / LangGraph / LiteLLM / Pinecone / PostgreSQL / Next.js

   Repository: OathKeeper
9. 09

   AI Research Curator

   In progress

   Built a research curation service that collects papers and news on a schedule, summarizes and ranks them in Korean with an LLM, and emails a daily digest.

   Python / FastAPI / PostgreSQL / Qdrant / LiteLLM / Next.js

   Repository: AI Research Curator
10. 10

    Learning Git & GitHub with Python Code

    Archived

    Published the example code and chapter-by-chapter Git practice repositories for the book "Learning Git & GitHub with Python Code" (Youngjin.com).

    Python / Git / GitHub

    Repository: Learning Git & GitHub with Python Code