Engineer Who Finds and Solves Problems
13 years of journey building and operating large-scale systems
A software engineer who creates business value through scalable architecture and grows with teams through technical leadership.
Impact Created
Development Philosophy
I identify root causes of problems and deliver value to users and businesses through sustainable solutions.
Featured Projects
Large-scale system design and operation experience
Nike Global Payment Platform - Korea Integration
Integrating Korean payment ecosystem into global payment platform
Global Payment System Korean Environment Integration
Korean vendor integration microservices development
High-Traffic E-commerce System
Large-scale traffic handling for order, inventory, and payment
Large-scale traffic processing optimization
Real-time inventory management system
Nike Application Modernization
Legacy application modernization with security and quality enhancement
Spring 4.2 → Spring Boot 3.5 migration
Java 8 → Java 21 upgrade
System Architecture
MSA, Cloud, Scalability
Payment Systems
Global, Security, Scalability
Auth & Security
OAuth, JWT, Security
Cloud & DevOps
AWS, K8s, CI/CD