Sunghyun Yoon is a back-end developer based in Seoul with nine years of experience building and maintaining Java/Spring/MySQL systems for back-office and internal platforms. He has a track record of disentangling legacy systems and delivering maintainable, well-tested code, with particular interest in JPA and test-driven development. Currently at KRAFTON, he brings practical expertise from multiple startups and mid-size teams, balancing feature delivery with long-term maintainability. Trained originally in mechanical engineering, he combines an engineer’s pragmatism with software craftsmanship and a preference for clear, supportable designs that ease future maintenance.
Contributions:57 pushes, 1 branch in 1 year 8 months
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Sunghyun Yoon - Back-end Developer at KRAFTON Inc.