Sung-ho Hwang
Backend Engineer at Bucketplace (Ohouse)
Seongnam-si, South Korea
Summary
👤
Senior🎓
Top SchoolSung-ho Hwang is a backend engineer with 11 years of experience building scalable, production-grade systems across fintech, AI, and consumer platforms. He led the backend redesign and global launch of Ohouse, enabling expansion to the US, Japan, and Indonesia while maintaining compatibility with legacy services. His work at Stealth and on the Debezium open-source project shows deep expertise in event-driven architectures, including implementing saga-based transactions with Kafka and authoring a MongoDB Outbox Event Router used by the Debezium community. At NAVER and Samsung Research he built robust ML data pipelines, API aggregators, and Kubernetes-deployed services, improving operability and log-driven observability. Known for pragmatic engineering, he blends systems thinking with hands-on coding and testing, notably converting complex CDC payloads from JSON to Structs for safer downstream processing. He holds a strong academic foundation in computer software engineering from Korea Aerospace University.
11 years of coding experience
3 years of employment as a software developer
Bachelor's degree, Computer Software Engineering, (Major GPA) 4.29/4.50, Bachelor's degree, Computer Software Engineering, (Major GPA) 4.29/4.50 at Korea Aerospace University
Japanese, English, Korean
Stackoverflow
432reputation
39kreached
11answers
21questions
Github Skills (22)
unit-testing10
kafka-connect10
java10
mongodb-database10
javas10
event-streaming10
change-data-capture10
apache-kafka10
mongodb10
kafka9
test-automation9
database8
databases8
json8
create-react-app6
Programming languages (16)
Github contributions (5)
debezium/debezium
Oct 2021 - Nov 2021
Change data capture for a variety of databases. Please log issues at https://issues.redhat.com/browse/DBZ.
Role in this project:
Backend Developer
Backend DeveloperContributions:7 reviews, 17 commits, 3 PRs in 1 month
Contributions summary:Sung-ho's commits primarily focused on enhancing the Debezium MongoDB connector. They refactored and wrote tests for the MongoDB Outbox Event Router, including integration and unit tests. Their work involved expanding the 'after' field and converting the 'after' field from JSON string to Struct, showing expertise in data transformation and event routing within the context of change data capture. They also made changes to code formatting and variable naming for improved readability.
kafka-connectapache-kafkadata-capturedatabasekafka-producer
sgc109/acm-icpc-teamnote
Sep 2017 - Apr 2021
Contributions:44 commits, 53 pushes, 14 branches in 3 years 6 months
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