Hyungjin Jeon
Software Engineer at 카카오뱅크 Kakaobank
Seongnam-si, South Korea
Summary
👤
Senior🎓
Top SchoolHyungjin Jeon is a software engineer with eight years of experience building full-stack and trading systems, currently developing electronic banking and account-management features at Kakaobank. He has strong Java and Spring ecosystem expertise (Kotlin, SpringBoot, Oracle/Postgres) and hands-on experience with front-end frameworks like React and Next.js, plus Android and machine learning interests from academic work at ChungNam National University and Purdue. Previously he worked on low-latency trading, FIX gateway systems at Samsung Securities and ERP logistics at Hyundai IT&E, combining backend reliability with client-side functionality. An active open-source contributor, he implemented multiple music service connectors for the popular web-scrobbler project, demonstrating practical integration with diverse APIs and encoding/ testing challenges. Colleagues know him for bridging enterprise-grade server development with pragmatic front-end and connector work, and for shipping maintainable systems across banking, finance, and retail domains.
8 years of coding experience
2 years of employment as a software developer
학사, Computer Engineering, GPA : 4.1/4.5(Major) 3.9/4.5, 학사, Computer Engineering, GPA : 4.1/4.5(Major) 3.9/4.5 at 충남대학교International Scholar, Computer Science, International Scholar, Computer Science at Purdue University
Korean, English
Github Skills (10)
javascript10
webextension10
firefox-addon9
chrome-extension9
google-chrome-extension9
api8
css8
html8
apim8
testing7
Programming languages (7)
Github contributions (5)
web-scrobbler/web-scrobbler
Sep 2018 - Dec 2018
Scrobble music all around the web!
Role in this project:
Front-end Developer
Front-end DeveloperContributions:5 commits, 9 PRs, 21 comments in 2 months
Contributions summary:Hyungjin focused on implementing and modifying web scrobbler connectors, primarily for music streaming services. They added new connectors for platforms like Bugs, monkey3, and Open.fm. Their contributions involved identifying and integrating with the APIs of these platforms, modifying code to handle encoding changes, and fixing issues with data retrieval. They also implemented and modified testing configurations for the developed connectors.
scrobblewebextensionlastfmlibrefmlistenbrainz
minimal1/spring-react-mysql-docker
Jan 2020 - Apr 2020
Contributions:55 commits, 7 PRs, 66 pushes in 3 months
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