Talha Kösen
Android Developer at ING
Flevoland, Netherlands
Summary
👤
Senior🎓
Top SchoolTalha Kösen is an experienced Android developer with 13 years designing and shipping mobile software, currently building maintainable, testable Kotlin apps at ING in the Netherlands. He specializes in modern Android patterns—Coroutines, Jetpack data flows and MVVM—and has led significant efforts such as a full refactor of iDEAL payments and build-time optimizations for his squads. Talha blends hands-on engineering with mentorship and chapter-wide tech talks, and has delivered preloaded and banking applications across large telco and finance customers. His background includes senior roles at Turkcell, VEON and sahibinden.com and hands-on experience creating clean architectures for messaging and payment solutions. As a longtime practitioner and freelance enterprise instructor, he pairs pragmatic code quality with a knack for translating complex payment workflows into robust, production-ready Android features.
13 years of coding experience
8 years of employment as a software developer
4, Computer Science and Educational Technology, 3.07, 4, Computer Science and Educational Technology, 3.07 at Yildiz Technical University
English
Stackoverflow
12,672reputation
1.4mreached
280answers
43questions
java
top-5%
listview
top-5%
android
top-1%
dynamic
top-5%
android-layout
top-5%
Github Skills (58)
flutter10
google-workspace10
ios10
windows10
cross-platform10
android-development10
desktop10
material-design10
bob10
google10
android10
mobile10
android-application10
macos10
dart10
Programming languages (4)
Github contributions (5)
talhakosen/ProfessionalAndroid
Dec 2012 - Dec 2012
Contributions:6 commits in 3 days
talhakosen/RubyTestServer
Dec 2015 - Mar 2016
Contributions:3 commits, 3 pushes, 1 branch in 2 months
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