Backend engineer with 5+ years of experience designing and operating core business systems across commerce, blockchain, and gaming domains.
- MakeStar — K-POP global commerce OMS/TMS backend
- LLM-powered product registration automation, inventory allocation system, TMS/WMS integration
- LLM Pipeline: Gemini API-based document automation (PDF/XLSX → OCR → LLM → API), reduced product registration time by 90%
- Inventory Allocation System: Designed & built from scratch, Lock Ordering + Atomic Update concurrency control — zero deadlocks
- DB Optimization: 25x query performance improvement (5s → 200ms)
- Real-time Pipeline: Kafka + Flink event processing across 5 game titles (Nexon)
| Company | Role | Period |
|---|---|---|
| MakeStar | Backend Engineer | 2024.05 ~ |
| Suhoio | Backend Engineer | 2023.04 ~ 2024.03 |
| Nexon Korea | Backend Engineer | 2022.01 ~ 2022.10 |
| Buzzvil | Backend Engineer | 2021.05 ~ 2021.10 |
| Naver Cloud | DB Engineering Intern | 2020.07 ~ 2020.08 |
Main: Java, Kotlin, Spring Boot, JPA/QueryDSL, PostgreSQL, MySQL, Redis, Docker, Kubernetes
Experience: Python, Django, FastAPI, TypeScript, NestJS, Scala, MongoDB, GraphQL, Kafka, Flink, GCP, AWS
Quant Rotation Trading Bot — Automated US stock trading system + FastAPI back-office dashboard (trader-dashboard)
