Manufacturing Intelligence · Field Proven
01 / 06From Factory Signals
to Decisions That Move.
Harry Lee — 15 years in manufacturing. I connect fragmented ERP, MES, and equipment data to design decisions the floor can act on tomorrow.
15YManufacturing experience
GLOBALBest practice adopted
LEAN × AIDomain-led engineering
PROOF, NOT PROMISES / 02
Measured Improvements on the Floor
Manufacturing Data Practice
Data Visualization Adopted as Global Best Practice
Frontline data visualization built in Power BI — OEE and losses by brand (SKU) and shift, at a glance. Not top-management rollups, but visualizations the floor can act on tomorrow. The OEE stratified-analysis dashboard was adopted as a global best practice.
Production data and screens remain confidential. The cases below anonymize the problem, design decisions, and operational outcome.
How Floor Data Becomes Action
- Define the floor problem
- Connect existing data
- Visualize the loss structure
- Drive daily action
CASE / 01
GLOBAL BEST PRACTICE
OEE Stratified Analysis Dashboard
Manufacturing Data Visualization
A Power BI dashboard that surfaces OEE values and loss trends by brand (SKU) and shift in real time. What used to be simple global rollups for top management only was redesigned so every layer — from plant managers to frontline operators — uses it for daily decision-making.
ResultAdopted as a global best practice and shared with other affiliates.
Power BIOEELoss AnalysisGlobal Rollout
CASE / 02
GLOBAL RECOGNITION
Coaching on the Floor Dashboard
Frontline Operations
A coaching dashboard that consolidates OPEN+ activity history and capability levels onto a single page. Curated with only the essentials, so frontline leaders can scan the data and instantly spot coaching points.
ResultCross-country demos validated the need for a unified view for frontline leaders.
Power BICompetency MgmtFloor CoachingOPEN+
CASE / 03
● ONGOING
In-house Power BI & Data Literacy Training
Data Empowerment
An introductory course teaching not tool mechanics but the thinking to read data. Equips frontline engineers to read data themselves, ask the right questions, and derive improvement actions. Power BI is just a tool — what matters is the thinking that turns data into decisions.
ResultEstablished a self-driven, data-based decision-making culture among frontline engineers.
Power BIData LiteracyCurriculum DesignEmpowerment
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"
Data visualization follows the same principle. Not flashy charts, but the simplicity the frontline can turn into action tomorrow.
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 KepwareEdge Computing
🏭
Smart Factory Architecture
Manufacturing OEE maximization and process visualization. PM Pillar Owner overseeing asset management and operational cost optimization.
Smart FactoryOEEPM PillarReal-time Monitoring
📊
Lean Manufacturing & IWS
Waste elimination via Integrated Work System. STA dispatched to Bologna, Italy; directly trained by EY global consultants.
LeanIWSKaizenValue Stream Mapping
🔐
Operational Technology Security
ICS/OT intrusion detection and multi-layered cybersecurity. Secure data communication within air-gapped OT environments.
OT SecurityICSSCADAAir-Gap
📈
Data Visualization / Power BI
Making complex factory-floor data simple. Designs stratified-analysis dashboards that surface OEE and loss trends by brand (SKU) and shift at a glance — not top-management rollups, but visualizations the frontline can act on tomorrow.
Power BIOEE 층별분석Lean Data DesignData Democratization
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.
View 3 exploration projects
🔄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
A selection of services I designed, built, and operate.
● 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
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
View 3 more projects
● 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
secret.rolean.org
The Secret of Bulguksa — Ciphers hidden by stonemasons 1,300 years ago. Educational mystery novel for kids. Da Vinci Code-style cipher decoding with real science-based storytelling.
Experiential learning of math (golden ratio, sequences), physics (friction, seismic), chemistry (redox), biology (photosynthesis) through mystery storytelling
HTML/CSSCreative WritingScience Education
Professional History
Career Benchmarks & Experience
Technical Services Supervisor
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
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
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
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%
View 3 earlier roles
Process Engineer
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
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
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
Collaboration & Training Inquiries
Whether it's IWS/TS guidance, Power BI data visualization, smart factory consulting, or vibe coding — all collaboration and training inquiries welcome. Let's chat over a 30-min coffee chat.
☕
30-Min Coffee Chat
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