Jaehwa Jung
Director, Data Engineering At Coupang (L7-2)
Seoul, South Korea
Summary
👤
Senior🎓
Top SchoolJaehwa Jung is a seasoned data engineering leader with over 20 years of expertise in Java and big data, currently serving as Director of Data Engineering at Coupang in Seoul. He has designed and scaled Hadoop-centric platforms, coached engineering teams, and driven analytics and recommendation systems across gaming, telecom, e-commerce, and healthcare domains. An Apache Tajo Committer and PMC member, he authored Korea’s first Hadoop technical handbook and mentored in Google Summer of Code, underscoring a deep open-source commitment. His career blends hands-on system architecture—Kafka, Hive, HBase, Kinesis and AWS—with operational know-how from building game-analytics pipelines and billing/customer systems. Colleagues describe him as a structured, platform-focused problem solver who translates complex distributed-data challenges into reliable production services.
11 years of coding experience
21 years of employment as a software developer
Bachelor's degree Computer Engineering, Bachelor's degree Computer Engineering at Seokyeong University
Github Skills (17)
notebook10
javascript10
spark10
nosql10
java10
scala10
sql10
scene10
database10
apache9
data-driven9
data-analytics9
analytics9
big-data9
hadoop5
Programming languages (2)
Github contributions (5)
blrunner/tajo-udf
Mar 2016 - Jun 2016
Contributions:21 commits, 18 pushes, 1 branch in 2 months
blrunner/tajo
Jan 2015 - Aug 2016
Contributions:970 pushes, 155 branches in 1 year 8 months
javatajoapache
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