Sungho Choi
Site Reliability Engineer at 카카오페이 (kakaopay)
Nanjing City, Jiangsu, South Korea
Summary
👤
Senior🎓
Top SchoolSungho Choi is a Site Reliability Engineer with 12 years of experience building and operating large-scale observability and CI systems for high-traffic services. At Coupang he designed indexing and rollup algorithms to handle millions of metric points per second and managed hundreds of Cassandra and Elasticsearch clusters to provide year-long metric retention. Now at KakaoPay he continues to focus on reliability and observability, bringing production-hardened Prometheus/Thanos and Kubernetes expertise. He has hands-on experience migrating services to AWS and automating provisioning pipelines with Jenkins, Helm, OpenFaaS and SaltStack. Born in South Korea, Sungho has worked across Japan and now lives in Nanjing to study Chinese, reflecting a practical curiosity for cross-cultural collaboration and growth. His blend of deep backend storage knowledge and operational automation makes him adept at turning complex telemetry needs into reliable, scalable systems.
12 years of coding experience
6 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Ajou UniversityGithub contributions (4)
wadolsh/_ykcform
Mar 2014 - May 2017
Contributions:60 commits, 144 pushes in 3 years 2 months
wadolsh/bridge-node
Nov 2017 - Sep 2022
Contributions:11 pushes, 2 branches in 4 years 10 months
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