Hyungrok Ham
Software Engineer at Karrot
South Korea
Summary
👤
Senior🎓
Top SchoolHyungrok Ham is a senior software engineer with 9 years of experience building high-throughput, cost-efficient data pipelines and ad systems, currently driving event and audience pipelines at Karrot. He has repeatedly delivered large-scale stream-processing solutions (Flink, Spark, Kafka, Dagster) that cut costs by up to 70% while improving accuracy and throughput—e.g., a Theta Sketch integration that improved counting accuracy 9× and a Flink migration that enabled exactly-once processing for 1B+ events/day. Previously at Bucketplace he applied domain-driven and hexagonal architectures to raise testability and availability, and tuned Flink to reduce peak lag by 95%. His background includes GPU-parallelized rendering, Webpack optimization, and early blockchain and storage-system work, reflecting a pragmatic blend of research-level systems thinking and hands-on production engineering. Based in South Korea with an MEng from KAIST, he pairs hustle-and-bustle drive with a track record of measurable impact in ads and data infrastructure.
9 years of coding experience
3 years of employment as a software developer
Master of Engineering - MEng, Computer Science, Master of Engineering - MEng, Computer Science at 한국과학기술원(KAIST)
Github Skills (25)
apache-flink10
python10
anonymous10
big-data10
apache10
java10
scala10
sql10
golang10
batch10
streaming10
beam9
data-processing9
streaming-data9
apache-beam8
Programming languages (5)
Github contributions (5)
gudfhr95/CS330
Mar 2018 - Jan 2022
Contributions:94 pushes, 1 branch in 3 years 10 months
gudfhr95/Algorithm-Java
Dec 2021 - Nov 2022
Contributions:377 pushes, 1 branch in 10 months
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