Donghyeon Kim
Server Chapter Lead at Toss Place
Seoul, South Korea
Summary
🤩
Rockstar🎓
Top SchoolDonghyeon Kim is a seasoned JVM backend engineer and server chapter lead with 11 years of experience building and operating high-scale services (MAU 100K–10M+) using Java/Kotlin, Spring, and AWS. He combines hands-on platform development with infrastructure ownership, emphasizing observability and proactive fault discovery to keep complex systems resilient. As a former CTO and startup co-founder, he brings product- and business-aware technical leadership, shaping system design, team growth, and engineering practices. He focuses on strong dependency separation and extensible designs to make codebases easier to change and scale, and drives team-level efforts to raise code quality. Based in Seoul, he pairs an academic background in software engineering with practical security grounding from a cybersecurity bachelor’s, which informs his pragmatic approach to system reliability. Colleagues know him for enjoying the investigative work of surfacing hidden failure modes and turning those findings into durable platform improvements.
11 years of coding experience
3 years of employment as a software developer
학사, 사이버해킹보안과, 4.14, 학사, 사이버해킹보안과, 4.14 at 서울호서전문학교석사, Computer Software Engineering, 3.86, 석사, Computer Software Engineering, 3.86 at 한양대학교
Stackoverflow
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Github Skills (138)
uitextview10
http10
authentication10
asp-net-core10
asp-net10
http-client10
livereload10
social-authentication10
slf4j10
non-blocking10
jackson10
rest10
json10
xamarin-android10
parameterized-tests10
Programming languages (8)
Github contributions (5)
wplong11/ReactorKit
Nov 2019 - Feb 2024
A framework for a reactive and unidirectional Swift application architecture
Contributions:18 pushes, 9 branches in 4 years 3 months
coredataframeworkunidirectionalreactive-programmingapplication-architecture
wplong11/feign
Jul 2022 - Nov 2022
Feign makes writing java http clients easier
Contributions:2 PRs, 76 pushes, 42 branches in 3 months
javaclientsfeign
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