HyeongWook LeeHyeongWook Lee

HyeongWook Lee

›
Ansan, Gyeonggi · LG Innotek
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About

Gen AI Engineer at LG Innotek focused on building agentic AI systems — multi-agent orchestration, LLM-powered tooling, and full-stack applications in production.

Tech Stack

AI / LLM
PythonAmazon BedrockAzure OpenAIClaudeMulti-AgentAgentic RAG
Data Engineering
DatabricksPySparkDelta LakeDLTMedallion ArchitectureGitHub Actions
Cloud & Infra
AWS S3OpenSearchAmazon TranscribeRDSVercel
Backend
FastAPIPostgreSQLMongoDBQdrantSQL
Frontend
Next.jsReactTypeScript

Experience

LG Innotek

Gen AI Engineer

Jan 2023 – Present

AI Knowledge Assistant

Designed and built an AI-powered internal knowledge assistant, delivering a full-stack web application (React + Vite / FastAPI) deployed on on-premise infrastructure — enabling employees to query unstructured documents across the organization through a custom RAG pipeline (Azure OpenAI, Qdrant, MongoDB) with metadata filtering and document-level chat.

FastAPIReactAzure OpenAIQdrantMongoDBRAG

AWS Migration

Migrated the system to AWS with support from LG CNS engineers, including architecture redesign, full data and code migration.

AWSArchitecture

Projects

Orbital Junkyard

Orbital Junkyard

Space Debris Intelligence Platform

  • —Tracks 36,000+ orbital objects from 3 public APIs
  • —18-table Medallion Architecture pipeline (Bronze → Silver → Gold)
  • —CesiumJS 3D globe rendering 5,000 objects simultaneously
PythonDatabricksDelta LakeAWS S3Next.jsCesiumJS
Interview Pilot

Interview Pilot

AI Mock Interview Platform

  • —Multi-agent orchestration with 3 AI personas on Amazon Bedrock (Claude)
  • —Real-time voice input via Amazon Transcribe
  • —Post-interview evaluation report with scoring
PythonFastAPINext.jsAmazon BedrockTranscribePostgreSQL

Certifications

Databricks Certified Data Engineer Associate

Databricks

AWS Certified Solutions Architect – Associate

Amazon Web Services

Databricks Certified Generative AI Engineer Associate

Databricks

Education

Penn State University

BS Computer Science · Minor in Mathematics

2017 – 2022

Contact

dlguddnr0820@gmail.comgithub.com/sleepy-wooklinkedin.com/in/hyeongwook-lee

© 2025 HyeongWook Lee