Jay

I'm a Data Engineer with ~9 years of experience building large-scale data systems.

I previously worked at NAVER, where I built data platforms supporting 20M+ daily active users across multiple services.

My focus is designing event-driven data systems and lakehouse architectures that transform high-volume event data into reliable, analytics-ready datasets for AI and business use cases.

Beyond infrastructure, I care deeply about how data is used — building derived datasets, defining metrics, and enabling teams with self-serve analytics and dashboards.

Recently, I've been working on LLM-based data systems in personal projects after relocating to Canada, focusing on turning unstructured data into structured, usable formats.

Always open to conversations around data platforms, analytics, or AI systems.