Hwajin Lee
Senior Software Engineer at backpackr
Seoul, South Korea
Summary
👤
Senior🎓
Top SchoolHwajin Lee is a Senior Software Engineer based in Seoul with over 10 years building backend systems in Java/Kotlin, PHP, Node.js and AWS for high-traffic services including a 5M MAU e-commerce platform and large O2O and edutech products. He specializes in migrating monoliths to domain-driven, event-driven architectures, designing scalable real-time data pipelines using Kafka, MongoDB and Redis, and hardening platforms with K8s, Istio and AWS infrastructure. Beyond coding, he has led cross-cutting initiatives—common libraries, KMS-based encryption, application gateways and CI/ArchUnit testing—to improve reliability and developer velocity. Known for pragmatic trade-offs, he pairs transactional guarantees (outbox pattern) with event sourcing ideas to enable replayable, auditable business logic. Currently focused on legacy redesign and real-time processing, he brings a hands-on blend of backend engineering and infra ownership that reduces coupling while improving operational resilience.
10 years of coding experience
7 years of employment as a software developer
Master's degree, Engineering Science, Master's degree, Engineering Science at 숭실대학교
Korean, Japanese, English
Github Skills (31)
laravel8
php7
codeartifact6
aws-codeartifact6
documentation5
semantic-versioning5
home-assistant5
manifest4
semantic4
plugin4
agent3
intellij-plugin3
aws3
versioning3
yii3
Programming languages (7)
Github contributions (5)
hwajin-me/hwajin-me
Oct 2020 - Sep 2024
Contributions:20 pushes, 1 branch in 4 years
hwajin-me/hs-price-tracker
Oct 2024 - Feb 2025
Home Assistant - E-commerce price tracker
Contributions:31 releases, 23 PRs, 114 pushes in 3 months
e-commercehome-assistant
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