Yongseok Choi
Back End Developer at 이스트시큐리티 ESTsecurity
Seoul, South Korea
Summary
👤
Senior🎓
Top SchoolYongseok Choi is a back-end developer based in Seoul with nine years of experience building B2B and B2C SaaS billing platforms, enterprise admin portals, and nationwide security management backends at ESTsecurity. He has a strong systems background spanning C++, Java, and Python, informed by earlier work on Chromium-based browser features at NAVER and an IoT leisure project during SW Maestro. Known for blending security-conscious engineering with production-focused delivery, he’s shipped integrated OS-level server management and nationwide PC protection services. Graduating top of his class in Computer Engineering from Hansung University, he also maintains a public GitHub presence and writes about his work, reflecting an ongoing curiosity beyond day-to-day product development.
9 years of coding experience
1 year of employment as a software developer
4 Grade, Computer Engineering, 4.39/4.5, 4 Grade, Computer Engineering, 4.39/4.5 at Hansung University
Korean, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (40)
tech-blog10
nodejs7
java7
socket7
spring-boot7
spring7
react6
file-manager6
file-explorer6
react-spring6
javascript6
application5
rest-api5
network5
asynchronous5
Programming languages (6)
Github contributions (5)
dydtjr1128/dydtjr1128.github.io
Apr 2019 - May 2022
Nice to meet you 😄 https://dydtjr1128.github.io/
Contributions:424 commits, 8 PRs, 335 pushes in 3 years 1 month
meetjavascriptnodejs
dydtjr1128/Speaker-Recognition-using-NN
Jul 2018 - Jan 2019
Contributions:32 commits, 29 pushes, 1 branch in 6 months
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