AI-native Engineer & Systems Architect
I turn tax AI, M&A integration, and payment bottlenecks into production systems with measurable outcomes.
AI-native & systems architecture
Tax AI, Fintech, EV charging and more
Pierrot payment stabilization
MS Launcher program selection
Key projects where complex business problems were solved with technology.
EY Han Young Assistant Director, IT PM
Designed a multi-agent tax AI assistant and agentic workflows for investment tax review, VAT reconciliation, and contract review.
Tech Azure Serverless, Multi-agent, Hybrid RAG
Built the foundation for a Big 4 tax work platform
Read case studyPluglink Tech Lead
Led the carve-out migration stream required to exit the TSA after Pluglink acquired Hanwha Solutions' EV charging business.
Tech AWS Lambda, API Gateway, Serverless
Contributed to technical independence and TSA termination
Read case studyPierrot Company CTO
Resolved bulk payment bottlenecks with a Django and Celery async queue, idempotency keys, and Smart Retry.
Tech Django, Celery, Redis
Reduced 3 hours to roughly 10 minutes, recovered KRW 330M
Read case studyChain Lightning Company CTO & Co-founder
Led AI-native pivots into D.PILOT, Documate, Tripmate TravelGPT, AI itinerary planning, and travel companion platforms.
Tech Azure OpenAI, GPT-4, Function Calling
Expanded into legal tech, document AI, and travel tech
Read case studyAssistant Director, IT PM
AI-native accounting and tax platform, multi-agent tax AI assistant, agentic workflow
Tech Lead
EV Charging Platform, M&A Tech Integration (PMI)
CTO
Electronics Subscription, Payment System, TIPS
CTO & Co-founder
0→1 EV charging platform, SaaG Protocol, generative AI pivots into D.PILOT and Tripmate
Backend Engineer
AI education platform, smart factory, large-scale commerce data, and ad quality automation
The more complex the problem, the more interesting it gets. Let's solve it together.