Changhwa Oh
Software Developer at Kakao Corp
South Korea
Summary
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SeniorChanghwa Oh is a seasoned full-stack software developer with 14 years of experience, currently building content safety and moderation systems at Kakao Corp. He has led and delivered production ML projects—comment toxicity classifiers using BERT, GIF/video adult content detectors, and ensemble-based image risk scoring—while owning model training pipelines and API serving. Equally at home in backend and frontend, he introduced React and TDD practices, built content monitoring and API gateway systems, and drove visualization and automation efforts. Earlier work focused on Java/Groovy enterprise systems and groupware migrations, giving him strong grounding in data migration, testing, and operational reliability. Notably, he has repeatedly proposed and led projects end-to-end, blending hands-on deep learning engineering with system design and team-level process improvements.
14 years of coding experience
Github Skills (45)
adapter10
lora9
python8
pytorch8
transformers8
llm7
machine-learning7
spring-boot5
java5
spring5
mybatis4
tera4
meter4
fine-tuning4
react4
Programming languages (3)
Github contributions (5)
changhwa/reserve
May 2012 - Nov 2012
Contributions:146 commits in 5 months
spring-bootmysqlspringjavamybatis
changhwa/deprecated_voyage
Feb 2016 - May 2016
Contributions:9 commits, 4 PRs, 22 pushes in 3 months
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