- Backend Developer | Based on Kotlin & Java
- Experienced in building scalable and high-performance backend systems
- Passionate about system architecture, caching strategies, and distributed systems
- Backend: Kotlin, Java, Spring MVC, Spring Webflux
- Database: MySQL, Oracle, MSSQL, MongoDB, Redis
- Infra: AWS, k8s, Kafka, ElasticSearch, Docker
- Testing & Performance: JUnit5, Kotest, JMeter, nGrinder
- Naver (2025.03 โ Present)
- Developing and maintaining Naver Shopping order history system
- KakaoPay Insurance (2024.06 โ 2025.03)
- Built insurance gift system
- Designed deposit-based insurance payment flow
- Automated failure recovery for payout transactions
- Gmarket (2022.01 โ 2024.06)
- Developed high-traffic coupon APIs (100M+ daily calls)
- Designed and optimized caching strategies using Redis + Kafka
- Improved API performance and scalability
- Built Gifting API/WebView, Funding Discount system, and improved legacy Admin