Product managerAgent identityAuthorization
In five years at KFTC, Korea's national payments and clearing institute, I built sign-in and authorization for 60+ financial institutions and shipped a palm-vein ID that 14 airports accept. I also co-invented a patent for biometric e-signing. Now I design the same controls for AI agents: an identity, a scoped mandate and a record a person can check.
M.S. in Human Centered Design and Engineering, University of Washington
Business Administration and French, Korea University01Featured project
In 2022 KFTC launched Korea's first cross-industry biometric ID, which lets a person enroll a palm once at one of 12 banks and use it at 14 airports. I led the go-to-market and the rollout, coordinated the banks, the airports and the scanner hardware vendor, and set privacy-first rules for handling palm-vein and facial sensor data.
The same questions now come up with AI agents. An agent can be enrolled once, like a palm, and the product then has to confirm over time that it still behaves like the agent that was enrolled.
02Also shipped
I led an OAuth-based authentication platform serving 500K+ daily active users across 60+ financial institutions. I owned the API integration and compliance with GDPR, eIDAS and PSD2, and the platform reached 150% revenue growth.
A biometric payment system that runs without a card network, shipped in one month with zero false charges.
With AI and ML engineers, I analyzed 300+ biometric datasets for financial-security governance, as part of KFTC's work on ISO 19092:2023, the biometric security framework for financial services.
Co-inventor of a method for biometric e-signing, in which one signer chains several biometric factors into a single signature token. Korean patent KR102906698B1.
03Recent
Recent projects from 2025 and 2026, most of them built in the open.
With the Office of Research Information Services, I led product and UX research for an AI-assisted redesign of SAGE, the university's research budgeting system. The AI copies and pre-fills budget data, a grant manager confirms each value against its source, and submission and sign-off stay with a person. The redesign is projected to cut grant manager workload by 25 to 33%.
A live LLM app for finding laptop-friendly cafes around Seattle, with a published evaluation.
An internal content tool that writes posts in English and Korean and scores competing LLMs on quality, safety and token cost before any draft is used. A person approves or flags each post. In the pilot it cut the work from 30 minutes to 5.
I gave an AI agent write access to my notes, and code checks every write. Handwritten pages, screenshots and saved articles land in one archive with study notes and a quiz: 107 captures verified, none failed.
A mentoring platform for professionals in the US and Canada, built from zero: 31 sessions so far, rated 4.8 out of 5.
A Chrome extension that turns a YouTube talk into work insights and the English used to express them. It runs on the model you bring: Gemini, Ollama, OpenAI or Anthropic.
Winner at the Beginner level, for a fairness evaluation of how people labeled emotion AI training data.
A multimodal agent that suggests outfits from photos of your closet, your mood and the weather. Submitted to the Amazon Nova hackathon.
04About
I grew up in Korea, studied business administration and French at Korea University, and moved to Seattle in 2024 for a master's at the University of Washington. Outside work I dance, climb and play tennis.
05Contact
If your team is building products where AI acts in critical roles on a person's behalf, I would like to hear from you.