Summary
Chungil Lee is a pragmatic software developer based in Seoul with nine years of experience building high-throughput, data-driven backend systems. He currently develops settlement platforms at Viva Republica (Toss) and previously designed large-scale push messaging, user behavior logging (hundreds of millions of daily events), and CDC-driven listing pipelines at Wemakeprice using Java, Spring, Kafka, Spark, and BigQuery. Comfortable across batch and stream processing, he has hands-on experience with system observability, MongoDB sharded clusters, and Pub/Sub architectures that sustain millions of messages per send. While focused on reliable production delivery, he also brings a practical curiosity about tooling and automation—evident in his history of building log collection clusters and operational monitoring for production data stores.
9 years of coding experience
5 years of employment as a software developer