● ABOUT

From the web
to AI document automation

Since 2007 I have built websites, desktop programs, trading systems and factory-floor systems. These days I build agents that read and structure documents with LLMs. AYH Labs is where I keep the tools I made for myself along the way.

2007~building software
17major projects
AdvancedLLM · document automation
Side projects

Side projects

MyIdol →Windows desktop reminder widget (Rust + Tauri 2)Explainer Studio ↗Claude Code / Codex skill that turns docs and repos into explainer videos
Career

Career

2024.08 – present
디투*** Senior Manager

Design, development, deployment and operations; AI services

2022.05 – 2024.07
아이*** Senior Manager

Design, development, deployment and operations

2010.04 – 2022.02
평택*** Manager

Development, marketing and service planning

2009.04 – 2010.03
컬처*** Manager

Development

2007.10 – 2009.02
LG*** Assistant Manager

Technical documentation translation and management

Company and client names are partially masked.

Projects

Projects

ProjectPeriodClientRoleStack
AI résumé normalization system (LLM document-extraction agent)2026.04 ~ ongoing디투***Design, development, PLPython, Node.js, Streamlit, OpenAI API (GPT-4o · GPT-5-mini, Vision · JSON mode), Groq API, pdfplumber, PyMuPDF, python-docx, python-pptx, openpyxl, JSON Schema, Git/GitHub
Cloud deployment and security hardening of the résumé automation system2026.08 ~ ongoing디투***Deployment, operationsPython, Streamlit, Docker, Google Cloud Run, Cloud Build, Secret Manager, IAP, LibreOffice, Linux
Service-contract extraction system (Vision LLM document parsing)2026.05 ~ 2026.07디투***Design, developmentPython, Streamlit, OpenAI GPT-4o Vision API, PyMuPDF, openpyxl
HD*** Korea plant SCADA master2025.06 ~ 2025.12HD***Design, development, PLPython, jQuery, MSSQL, Autonics SCADA Master
HD*** APRISO enhancement2024.09 ~ 2024.12HD***Web developmentC#, MSSQL, jQuery, APRISO
엔지*** website2022.11 ~ 2024.07아이***Website design, developmentPHP, JavaScript, jQuery, MariaDB, Python
Settlement website2022.07 ~ 2022.12아이***Website design, developmentPython, Java, PHP, JavaScript, jQuery, MariaDB
Competitor website analysis tool2022.07 ~ 2022.09아이***Desktop app developmentPython
New website build2020.04 ~ 2020.10평택***Website planning, API designASP, jQuery, MSSQL
Website maintenance and enhancement2010.05 ~ 2020.05평택***Website developmentPHP, MariaDB
Automated stock trading program2019.01 ~ 2021.01평택***DevelopmentC# WinForms, MSSQL, Visual Studio
Stock fair-value lookup and sales website2013.05 ~ 2014.05평택***Website developmentPHP, MariaDB
System trading strategies2010.08 ~ 2013.08평택***Desktop developmentYES Language
롯데*** ticket booking site2009.05 ~ 2010.03롯데***Website maintenanceASP, MSSQL
Performance-hall booking sites2009.05 ~ 2009.12부산***, 음성***Website developmentASP, MSSQL
포천*** sled-park automated ticketing program2009.08 ~ 2009.11포천***Desktop/communication programC#, Visual Studio
LG*** mobile software2007.10 ~ 2009.01LG***Technical translation, schedule supportSymbian
Skills

Skills · Certifications · Education

Skills

  • Python application development (Streamlit)Advanced
  • LLM API integration, prompt engineeringAdvanced
  • AI-agent document-processing pipelinesAdvanced
  • Automated document parsing and generation (PDF / DOCX / XLSX / PPTX)Advanced
  • Docker, Google Cloud Run deployment and operationsIntermediate

Certifications

  • Engineer Information Processing2006.06
  • Fund Investment Advisor2013.02
  • KT AICE Associate2025.08

Education

  • SK*** AI Bootcampcompleted 2026.03
  • Information Processing EngineeringB.S.
Contact

Reach me by email

Projects and collaboration: one address for everything.

✉  [email protected]