Hyunsik Um
Backend Developer at Kakao Entertainment
Seoul, South Korea
Summary
🤩
Rockstar🎓
Top SchoolHyunsik Um is a backend developer with 9 years of experience specializing in Python and JVM ecosystems, currently building scalable services for Melon at Kakao Entertainment. He maintains python-mysql-replication, a practical binlog-based CDC and recovery library used by data engineering teams at companies like Kakao and AWS, demonstrating expertise in data reliability and replication. His work spans backend systems for music streaming commerce, promotion and coupon operations, and a Kafka-based proxy for in-app payments, plus prior roles in AI testing platforms and predictive modeling. Trained in industrial engineering and computer science, he combines system-level thinking with applied data skills to deliver robust, production-ready services. Notably, his open-source maintenance shows an emphasis on operational tooling that helps bridge engineering and data teams.
9 years of coding experience
Industrial engineering, Industrial engineering at Gachon UniversityBachelor of Engineering, computer science, Bachelor of Engineering, computer science at Konkuk University
English, Korean
Github Skills (28)
kubernetes10
cdc10
python10
mysql10
pymysql10
sink10
mysql-replication10
pure-python10
mysql-binlog10
replication10
binlog10
database10
binary-log10
kafka-connect9
redhat9
Programming languages (3)
Github contributions (5)
choiseokkyu/web_final
Feb 2017 - Aug 2023
Contributions:2 PRs in 6 years 7 months
sean-k1/sean-k1
Aug 2021 - Oct 2024
Contributions:36 pushes, 1 branch in 3 years 2 months
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