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Ph.D. in Intelligence and Information

Department of Intelligence and Information, Seoul National University, Korea

• Supervised by Prof. Nojun Kwak

B.S. in Food Science and Biotechnology (Minor: Industrial Engineering)

Department of Food and Animal Biotechnology, Seoul National University, Korea

Machine Learning Engineer

Zoox

• • Post-training foundation models for autonomous driving.
  • Training vision-language-action (VLA) models for autonomous driving.

Applied Research Scientist

Krafton AI

• Developed PUBG ALLY, a real-time embodied companion agent for in-game voice chat dialogue and strategic planning, serviced as a beta test. Early demo was showcased at CES 2025 and covered by The Verge.

  • Designed an embodied agent architecture with a dialogue/planning module for low-latency in-game voice chat.
  • Trained Small Language Models (SLMs) using closed-loop human feedback and synthetic data for real-time, low-latency inference on consumer GPUs.

AI Engineer Intern

Naver Webtoon

• Contributed to Character Chat, a production RAG-based AI chatbot mimicking webtoon character personalities and speech styles, serving over 6M users (media release).

  • Led prompt engineering for LLM-as-evaluator workflows to measure and reduce out-of-character responses.
  • Designed and implemented data collection, preprocessing, and pretraining pipelines for an in-house small Korean language model.

  Conducted research in copyright protection:

  • LLM watermarking and copyright protection for text-to-image models (NAACL 2024, CVPR 2025).
  • Placed 3rd in “N Innovation 2023”, an internal competition for novel AI-driven services across Naver.