Hyung-jun Yoo
Android Developer at DKB Code Factory GmbH
Berlin, Germany
Summary
👤
Senior🎓
Top SchoolHyung-jun Yoo is an Android developer with nine years of hands-on experience building production mobile apps, currently shipping the Kotlin-based DKB banking app from Berlin. He brings deep expertise in Android frameworks (Jetpack, MVVM, Navigation), Kotlin, and modern tooling like Koin, Retrofit2 and RXJava3, alongside strong testing and CI practices (Espresso, JUnit, detekt, KtLint). His background spans full-stack and server work—from Ruby on Rails and PostgreSQL to C++ game servers—giving him rare end-to-end insight into performance and backend integration for mobile clients. Comfortable leading features and mentoring, he has transitioned from game-engine and server-centric roles to focus on polished, secure Android experiences in financial services. He pairs a formal ECE education with a pragmatic engineering approach and a history of shipping high-traffic, user-facing systems.
9 years of coding experience
10 years of employment as a software developer
Bachelor’s Degree, Electrical and Computer Engineering, GPA: 3.6 / 4.5, Bachelor’s Degree, Electrical and Computer Engineering, GPA: 3.6 / 4.5 at Dankook University
English, Korean
Github Skills (4)
generalization4
testing3
css3
javascript3
Programming languages (3)
Github contributions (5)
junyoo96/Study_Algorithm
Jul 2020 - May 2023
Contributions:232 pushes, 2 branches in 2 years 10 months
junyoo96/Project_AI_SinkholeDetection
Mar 2020 - Aug 2022
Contributions:174 pushes, 2 branches in 2 years 5 months
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