Yoonyoul Yoo
CTO at A1 Media Group
Goyang-si, Gyeonggi, South Korea
Summary
👤
Senior🎓
Top SchoolYoonyoul Yoo is a pragmatic CTO and backend specialist with 11+ years crafting high-performance JVM-based systems using Java and Kotlin, and a track record of shipping complex production services from fintech and Web3 to e-commerce. He designs robust architectures—modular monoliths, event-driven Kafka integrations, Redis caching, and hybrid vector+BM25 search—and has led end-to-end delivery including CI/CD, containerized infrastructure, and payment/auth integrations. Beyond code, he consistently improves cross-functional collaboration, documentation, and QA automation, having built DSL-style test frameworks and driven onboarding and process improvements. Recent work spans Web3 wallet and NFT platform integrations at LINE NEXT and a self-driven RAG search MVP for public pharmaceutical data, showing both product instincts and hands-on ML/embedding engineering. Comfortable moving between legacy SI projects and modern cloud-native stacks, he blends systems thinking with pragmatic delivery to reduce time-to-market and operational risk.
10 years of coding experience
19 years of employment as a software developer
Bachelor's degree Industrial Engineering, Bachelor's degree Industrial Engineering at Hankuk University of Foreign Studies
Korean, English
Stackoverflow
19reputation
9kreached
3answers
0questions
Github Skills (188)
creator10
http-client10
junit10
rpc-server10
micro-framework10
rpc-library10
retrofit10
java10
http-server10
gateway10
spring-boot10
kotlin10
spring10
tron10
soa10
Programming languages (10)
Github contributions (5)
ryukato/developers-sdk
Dec 2020 - Nov 2021
Contributions:7 releases, 20 reviews, 25 commits in 11 months
line-blockchain-developers
ryukato/ryukato.github.io
Nov 2017 - Mar 2024
Contributions:142 pushes, 2 branches in 6 years 5 months
jekyll-websitejekylljekyll-theme
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