At NAVER, I integrate MQTT and HTTPS communication workflows for message categorization and event-driven updates in a collaboration product serving 6,000+ daily active users.
I also integrated scheduling API responses and invitation states into consistent data-handling workflows, and consolidated replies, reactions, and mentions into a unified activity update workflow.
At MoMo, I integrated message-queue-based data delivery for real-time communication between server systems and downstream consumers. I optimized Protocol Buffers serialization, reducing network payload size by 50–60%, and implemented interceptor-based API request processing.
As a Software Engineering Intern at ELCA, I developed backend components for an internal project and timeline tracking system using Spring and Hibernate. In a personal project, I designed six microservices for a Go-based social network backend and used gRPC, message queues, JWT authentication, and Memcached.
