About

Applied AI Engineer & Technical Advisor with 10+ years of experience across Singapore, New York, and Seoul. Former CTO of a $20M Series A startup and author of two technical books. Bilingual in Korean and English.

What I Do

I specialize in deploying production LLM systems and advising engineering teams through the full AI adoption lifecycle — from architecture design through deployment at scale.

• LLM Production Deployment: Built GenAI pipelines, implemented Claude-powered automation, and shipped LLM-driven systems in production environments.
• Technical Advisory: Served as the primary technical point of contact for enterprise customers, guiding teams from initial discovery through successful deployment.
• Agent & Evaluation Frameworks: Developed A/B testing modules, AI agent pipelines, and evaluation suites for production LLM applications.
• Data Architecture: End-to-end data infrastructure across GCP, AWS, Snowflake, BigQuery, and dbt.

Key Achievements

• Claude Automation (Airpremia): Reduced operational overhead by 40% through LLM-powered workflow automation and AI-assisted documentation.
• GenAI Media Pipeline (Momenti): Pioneered text-to-interactive-video generation using LLM orchestration and advanced prompt engineering.
• 40% Customer Growth (Greybox): Scaled enterprise customer base through technical advisory, custom A/B testing, and developer workshops.
• $20M Series A (Singapore Startup): Led a team of 7 and secured Series A funding by building high-performance recommendation engines (LightGCN, ALS).

Publications

• English: Build Your Own Netflix with Python and React (Amazon)
• Korean: 나 혼자 만든다! 영화 추천 웹 서비스로 배우는 풀스택 (BJ Public)

Background

Education: Seoul National University — Statistics & Computer Science

Languages: Korean (native), English (fluent)

Resume (Contact needed)

Skills