Kyoungil Lee
Developer at NAVER Corp
Hwaseong-si, South Korea
Summary
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SeniorKyoungil Lee is a seasoned software developer from South Korea with 11 years of professional experience building high-performance web and commerce platforms for major companies like NAVER and Kakao. He specializes in backend development and DevOps, with hands-on experience optimizing systems for high concurrency, scalable microservices, and real-time monitoring. His open-source work includes backend improvements to Scouter, an APM tool, where he enhanced socket handling, real-time process reporting, and API documentation via Swagger. Comfortable across Java, Groovy, Spring Boot, MySQL, Redis and cloud-native architectures, he has repeatedly delivered production systems that handle heavy traffic and complex data flows. A collaborative team player who likens effective teams to Swiss watch cogs, he is driven by continuous learning, cross-cultural curiosity, and a willingness to tackle unfamiliar challenges. He is seeking web application and DevOps roles where he can both deepen technical impact and help teammates grow.
11 years of coding experience
7 years of employment as a software developer
Korean, English
Github Skills (12)
javas10
performance-monitor10
performance-analysis10
performance-monitoring10
java10
api-design9
agent9
api9
apim9
monitoring8
tomcat8
bytecode7
Programming languages (3)
Github contributions (5)
scouter-project/scouter
Oct 2017 - Oct 2017
Scouter is an open source APM (Application Performance Management) tool.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 commits, 2 PRs, 7 comments in 12 days
Contributions summary:Kyoungil focused on enhancing the application's backend performance and functionality, primarily by optimizing socket options to handle large packets from the server. They also added a feature to retrieve real-time process information using the 'top' command and incorporated swagger for the web HTTP API. Furthermore, the user modified various configurations and added final keyword to ProcessObject constructor params, suggesting a focus on improving code stability and efficiency.
performance-managementtomcatmanagement-toolmonitoringjava-application
LeeKyoungIl/illuminati
Aug 2017 - Nov 2022
This is a Platform that collects all the data accuring in your Application and shows the data in real time by using Kibana or other tools.
Contributions:19 releases, 448 commits, 230 PRs in 5 years 4 months
agenteventjavascriptloggingkibana
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