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About Me

I'm an AI Engineer focused on building production LLM systems for legal and business document intelligence. I studied Computer Software at Hanyang University, graduating Summa Cum Laude with early graduation, and have been working in applied AI since 2023.

My path into AI was sparked by winning CLOVA AI RUSH and discovering CLOVA Note's AI summarization, which predated ChatGPT. That drew me into NLP, and an internship at NAVER Cloud building CLOVA Note's title generation model set my direction toward applied AI. My graduation project on memory-efficient LLM fine-tuning (combining INT8 quantization with LoRA to train a 13B model on a single consumer GPU) added foundational model optimization experience.

At BHSN, I work across the full stack of legal AI, from model training and evaluation to serving infrastructure and product integration. My work spans contract review AI, LLM serving optimization (vLLM, structured output, long-context handling), evaluation systems combining traditional metrics with LLM-as-a-Judge, and workflow/agent platforms that put AI capabilities directly into legal professionals' hands.

I contributed to predibase/lorax, a multi-adapter LLM serving framework that enables multiple fine-tuned models to run on limited GPU capacity. I fixed chat completion serialization, added deterministic generation via seed parameter, enabled stream usage accounting, and extended structured output compatibility. These contributions directly fed back into our internal serving infrastructure for legal document processing.

LLM / Agent Specialist

I focus on end-to-end delivery, from model development through evaluation, serving, and product integration. Rather than stopping at research or prototypes, I turn AI capabilities into operational systems non-engineers can use directly. I have a thorough grasp of Transformer decoder–based LLM architectures and work fluently across the whole stack — from standing up GPU infrastructure and training and deploying models, all the way to designing and building the agents that run on top of them.

Key Strengths

  • End-to-end design and development capability across model training, evaluation, serving, workflows, and agents
  • Productization that covers both backend APIs and the operational tools non-engineers use directly
  • Deep understanding of Transformer decoder LLM architectures and the tech trends around them
  • Design and development capability for understanding the contract-law domain and shaping it into a real, running product

Career

2023 — Present

AI Engineer

BHSN

Building production LLM systems for legal AI. Contract review, serving infrastructure (vLLM), evaluation pipelines, and workflow automation.

2022.12 — 2023.02 (3 months)

Research Engineer(Intern)

Naver Cloud (CLOVA)

Developed CLOVA Note title generation model with positive filtering and semantic similarity (3-month internship).

2020 — 2022

Military Service

Republic of Korea Army

InfoSec specialist. Security automation in air-gapped environments. Commendation from Cyber Operations Command.

Education

2018 - 2023

B.Eng. in Computer Software

Hanyang University

GPA: 4.14 / 4.50 | Summa Cum Laude, Early Graduation (1 semester ahead), Full Scholarship (4 semesters)