Domain First · AI Always

Vibe Coder Meets
Lean Operation.

Harry Lee — Software Engineer with 15+ years in manufacturing domain. Bridging IT and OT with 15 years of hands-on manufacturing domain expertise. Applying Lean thinking from process optimization to real-time data pipeline design — building robust, waste-free, high-performance software.

View ProjectsRead Career
115%OEE ImprovementLean techniques applied across legacy and new equipment lines
208%MTBF IncreasePreventive maintenance system and root cause analysis framework
61%Downtime ReductionSystematic equipment management via IWS methodology
82%Waste ReductionProcess optimization and Change Over standardization
-45→+35NPS Shift4-shift 24/7 team culture transformation
40+Team LedMulti-functional production team continuous operations

Philosophy

Eliminate Waste. Keep Only What Matters.

Lean and IWS philosophy from the production floor is not simple process management. It's the art of high-level abstraction — keeping only the Value-Added steps and ruthlessly eliminating every unnecessary one.

Software engineering follows the same principle. No obsession with heavy frameworks or unnecessarily complex architectures — focusing on business value and extreme UI usability to write the fastest, most reliable, optimal code. "Domain First · AI Always"

Core Expertise

Industrial Convergence — Core Domains of Expertise

🔌

Embedded IoT Engineering

Embedded hardware control and sensor data pipeline design. Experienced with industrial OT infrastructure integration via PTC Kepware.

ESP32IoTPTC Kepware
🏭

Smart Factory Architecture

Manufacturing OEE maximization and process visualization. PM Pillar Owner overseeing asset management and operational cost optimization.

Smart FactoryOEEPM Pillar
📊

Lean Manufacturing & IWS

Waste elimination via Integrated Work System. STA dispatched to Bologna, Italy; directly trained by EY global consultants.

LeanIWSKaizen
🔐

Operational Technology Security

ICS/OT intrusion detection and multi-layered cybersecurity. Secure data communication within air-gapped OT environments.

OT SecurityICSSCADA

Exploration 2026

Explore, Experiment, Build — The Learning Journey

Translating manufacturing domain knowledge into software — every lesson learned is tested and validated through real projects. Each project is a record of failures and successes, a benchmark for the next step forward.

🔄Active

Agile O365 Learning Platform

Education Technology

AI-powered conversational Agile learning platform on Microsoft Office 365. 10-week progressive program with multi-agent coaching system (MindsetCoach, CeremonyGuide, ToolPractice).

Next.js 15TypeScriptTailwind CSSVercel AI SDK

💡 Learned

The biggest barrier to Agile adoption isn't tools but mindset shift. AI coaching agents designing personalized learning paths is highly effective.

🤖Active

Vexa Meeting Bot Platform

Meeting Intelligence

Self-hostable meeting bot API and transcription service. Real-time transcription, speaker ID, interactive bot controls, MCP server with 17 tools across Meet, Teams, Zoom.

Node.jsDockerKubernetesMCP Protocol

💡 Learned

Meeting data value lies not in transcription but in follow-up actions. AI auto-converting outcomes into actionable tasks is the real productivity revolution.

📻Completed

EBS English Learning Recorder

Automation & Education

Automated EBS FM English learning radio recorder. Records 5 daily programs (05:59-09:40 KST) and uploads to Telegram automatically.

PythonTelegram Bot APIsystemd

💡 Learned

Small automations build big habits. When auto-recorded files arrive via Telegram daily, the learning barrier drops to zero.

Open Projects

Live Services & Open Projects

🎯● Live

gtasks.rolean.org

Google Tasks UI/UX enhancer with Eisenhower Matrix, Gantt Chart, and Mind Map views for extreme productivity optimization.

🎯 Auto-prioritization via Eisenhower Matrix with Gantt Chart schedule visualization

Next.jsGoogle Tasks APIUI/UX
📖● Live

book.rolean.org

Daily reading habit verification and challenge platform. Tracks consistency and gamifies reading culture.

🎯 30-day challenge-based reading habit formation with gamification motivation

ReactGamificationHabit Tracker
🎙️⚒ Building

meet.rolean.org

Open-source meeting recording and AI summarization. Real-time transcription, speaker diarization, and key-point extraction.

Open-SourceAI SummarizerWebRTC
🧩● Live

test.rolean.org

Multiple intelligence assessment platform. Simple mode (24Q, 5min) and advanced mode (70Q, 15min) with AI-powered personalized analysis.

🎯 AI-powered personalized analysis with response consistency validation

Next.jsOpenAI APIPsychometrics
🧠● Live

notes.rolean.org

AI knowledge base with three-panel layout: document tree, markdown editor, AI assistant, audio transcription, and image analysis.

Next.js 16PrismaZ.ai SDKAI

Professional History

Career Benchmarks & Experience

Technical Services Supervisor

Global Fortune 500 FMCG · Global Fortune 500 FMCG

Leading operational cost optimization and Smart Factory infrastructure. As PM Pillar Owner, ensuring asset reliability. Pioneering real-time equipment monitoring and AI integration via PTC Kepware.

  • Built real-time equipment monitoring via PTC Kepware
  • Led R&M cost reduction as PM Pillar Owner
  • Designed IT/OT hybrid bridge architecture
  • Pioneered AI integration pipeline for manufacturing

Deployment Lead, Operations Excellence

Global Fortune 500 FMCG · Global Fortune 500 FMCG

Overall SWP owner — 5S, Change Over, Digital Training, Data Integrity. Built Power BI real-time monitoring system.

  • Overall owner of 4 core SWP pillars
  • Built Power BI real-time monitoring dashboard
  • Established digital technical training system
  • Standardized data integrity framework

Line Lead, Secondary Production

Global Fortune 500 FMCG · Global Fortune 500 FMCG

Managed 24/7 new product line. Led 40+ multi-functional team. Achieved NPS transformation from -45 to +35.

  • Managed 40+ multi-functional team across 4 shifts
  • Transformed NPS from -45 to +35
  • Introduced 1:1 GROW coaching system
  • Deployed MS Teams & Power BI digital collaboration

Process Lead Trainer (STA — Italy)

Global Fortune 500 FMCG — Bologna, Italy Plant · Global Fortune 500 FMCG — Italy

Dispatched to Bologna, Italy. Directly trained by EY consultants on IWS methodology. Certified process change management trainer. Led 115% OEE and 82% waste reduction.

  • IWS Certified Trainer (EY credential)
  • Achieved 115% OEE improvement
  • Reduced waste by 82%
  • Increased MTBF by 208%

Process Engineer

Global Fortune 500 FMCG · Global Fortune 500 FMCG

Managed Korea's first LES introduction. Led internal audit team for ISO 9001/14001 and OHSAS 18001.

  • Managed Korea's first LES implementation
  • Led ISO 9001/14001 internal audit team
  • Established process standardization framework

Production Engineer

Global Shipbuilding & Heavy Industry · Global Shipbuilding

Overall engineer for ship machinery installation. Managed main engine alignment for LNG carriers and ultra-large container ships.

  • Managed main engine alignment for LNG carriers
  • Led installation process for ultra-large container ships

Process Engineer

Global Aluminum Rolling Company · Global Aluminum

Aluminum casting process engineer. Earned 6Sigma Green Belt. Performed production line benchmarking and technical innovation.

  • Earned 6Sigma Green Belt certification
  • Improved aluminum casting process quality

Coffee Chat

협업 제안 및 교육 요청

IWS/TS 업무 가이드, Power BI 데이터 가시화, 스마트팩토리 공정 컨설팅, 바이브 코딩 입문 방법 등 모든 협업과 교육 제안을 환영합니다. 30분 커피챗으로 편하게 이야기 나눠요.

☕

30분 커피챗

Google Calendar에서 원하는 날짜와 시간을 선택해 주세요. 미팅 링크는 예약 확정 후 자동으로 안내됩니다.

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