Senior Android Developer with 10+ years of experience in the full lifecycle of native Android application development.
Aktualisiert am 02.12.2025
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 08.12.2025
Verfügbar zu: 100%
davon vor Ort: 15%
Kotlin
Scrum
Android
Java
Git
Android TV
Fire TV
Subversion
SAFe
German
English
Spanish

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

1 Jahr 2 Monate
2023-12 - 2025-01

Cologne City Guide

Mobile Developer Kotlin Kotlin Multiplatform Jetpack Compose ...
Mobile Developer
  • Conceptualized and built various prototypes for mobile devices of a location based city guide based on the feedback of our partners
  • Single codebase for Android and iOS by using Compose Multiplatform
Kotlin Kotlin Multiplatform Jetpack Compose Git Koin Android Kotlin Coroutines Kotlin Flows
1 Jahr 10 Monate
2021-11 - 2023-08

RTL+

Senior Android Entwickler Jetpack Compose Kotlin Flows Kotlin ...
Senior Android Entwickler
  • Led the development as technical lead of the Video on Demand and Live Event sections for the flagship RTL+ multipurpose application
  • Created a seamless user experience using Kotlin, XML, and Jetpack Compose for Android, Android TV, and FireTV platforms
  • Successfully delivered features and collaborated with cross-functional teams in large-scale agile environments (Scrum/SAFe)
Jetpack Compose Kotlin Flows Kotlin Kotlin Coroutines Android TV Fire TV Git
Cologne
6 Jahre 1 Monat
2015-11 - 2021-11

TVNOW

Senior Android Entwickler Kotlin Java Git ...
Senior Android Entwickler
  • Architected and built the TVNOW Android application from the ground up
  • As technical lead, I oversaw the development lifecycle for Android, Android TV, and FireTV
  • Drove project milestones and delivered new features iteratively within an agile Scrum framework
Kotlin Java Git GitLab Android TV Fire TV
Cologne
1 Jahr 11 Monate
2013-12 - 2015-10

Clipfish

Android Entwickler Android Java Fire TV ...
Android Entwickler

  • Initiated and executed a complete rewrite of the existing Clipfish mobile app, which significantly reduced the number of crashes and improved the maintainability

  • Conceptualized and built the Android TV and Fire TV apps from scratch

Android Java Fire TV Android TV Scrum Subversion Android SDK Leanback Library
Cologne
3 Monate
2015-05 - 2015-07

Dooloop

Android Entwickler Leanback Library Java Subversion ...
Android Entwickler

  • Designed and developed the Dooloop Social Music video streaming app from concept to launch for Android TV and Fire TV

  • Utilized Java and the Leanback Library to create an exciting big screen experience

Leanback Library Java Subversion Jenkins Android TV Fire TV

Aus- und Weiterbildung

Aus- und Weiterbildung

3 Jahre 6 Monate
2007-08 - 2011-01

Informatik Studium

Bachelor of Science, Hochschule Bonn-Rhein-Sieg
Bachelor of Science
Hochschule Bonn-Rhein-Sieg
Medieninformatik
2 Jahre 7 Monate
2004-08 - 2007-02

Lehramt Informatik/Wirtschaftswissenschaften

Universität zu Köln
Universität zu Köln
3 Jahre
2000-08 - 2003-07

Informationstechnischer Assistent

Staatlich geprüfter Informationstechnischer Assistent, Heinrich-Hertz-Europakolleg Bonn
Staatlich geprüfter Informationstechnischer Assistent
Heinrich-Hertz-Europakolleg Bonn

Position

Position

Senior Android Developer

Kompetenzen

Kompetenzen

Top-Skills

Kotlin Scrum Android Java Git Android TV Fire TV Subversion SAFe

Produkte / Standards / Erfahrungen / Methoden

Summary

Senior Android Developer with 10+ years of experience in the full lifecycle of native Android application development, from concept to deployment and maintenance. Proven expertise in Kotlin and Java, building high-quality, scalable apps for smartphones, tablets, Android TV, and Fire TV. Adept at working in agile (Scrum/SAFe) environments.


Technical

  • Native Android Development
  • Kotlin, Java
  • Jetpack Compose, XML
  • Hilt, Koin
  • MVI, MVVM, MVC
  • Git / SVN
  • Gitlab CI / Jenkins
  • JUnit, Espresso, Mockito, MockK 

Betriebssysteme

Android
Experte
Windows
Fortgeschritten
macOS
Fortgeschritten
Linux
Fortgeschritten

Programmiersprachen

Kotlin
Experte
Java
Experte
C++
C
JavaScript
Python
Dart

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

1 Jahr 2 Monate
2023-12 - 2025-01

Cologne City Guide

Mobile Developer Kotlin Kotlin Multiplatform Jetpack Compose ...
Mobile Developer
  • Conceptualized and built various prototypes for mobile devices of a location based city guide based on the feedback of our partners
  • Single codebase for Android and iOS by using Compose Multiplatform
Kotlin Kotlin Multiplatform Jetpack Compose Git Koin Android Kotlin Coroutines Kotlin Flows
1 Jahr 10 Monate
2021-11 - 2023-08

RTL+

Senior Android Entwickler Jetpack Compose Kotlin Flows Kotlin ...
Senior Android Entwickler
  • Led the development as technical lead of the Video on Demand and Live Event sections for the flagship RTL+ multipurpose application
  • Created a seamless user experience using Kotlin, XML, and Jetpack Compose for Android, Android TV, and FireTV platforms
  • Successfully delivered features and collaborated with cross-functional teams in large-scale agile environments (Scrum/SAFe)
Jetpack Compose Kotlin Flows Kotlin Kotlin Coroutines Android TV Fire TV Git
Cologne
6 Jahre 1 Monat
2015-11 - 2021-11

TVNOW

Senior Android Entwickler Kotlin Java Git ...
Senior Android Entwickler
  • Architected and built the TVNOW Android application from the ground up
  • As technical lead, I oversaw the development lifecycle for Android, Android TV, and FireTV
  • Drove project milestones and delivered new features iteratively within an agile Scrum framework
Kotlin Java Git GitLab Android TV Fire TV
Cologne
1 Jahr 11 Monate
2013-12 - 2015-10

Clipfish

Android Entwickler Android Java Fire TV ...
Android Entwickler

  • Initiated and executed a complete rewrite of the existing Clipfish mobile app, which significantly reduced the number of crashes and improved the maintainability

  • Conceptualized and built the Android TV and Fire TV apps from scratch

Android Java Fire TV Android TV Scrum Subversion Android SDK Leanback Library
Cologne
3 Monate
2015-05 - 2015-07

Dooloop

Android Entwickler Leanback Library Java Subversion ...
Android Entwickler

  • Designed and developed the Dooloop Social Music video streaming app from concept to launch for Android TV and Fire TV

  • Utilized Java and the Leanback Library to create an exciting big screen experience

Leanback Library Java Subversion Jenkins Android TV Fire TV

Aus- und Weiterbildung

Aus- und Weiterbildung

3 Jahre 6 Monate
2007-08 - 2011-01

Informatik Studium

Bachelor of Science, Hochschule Bonn-Rhein-Sieg
Bachelor of Science
Hochschule Bonn-Rhein-Sieg
Medieninformatik
2 Jahre 7 Monate
2004-08 - 2007-02

Lehramt Informatik/Wirtschaftswissenschaften

Universität zu Köln
Universität zu Köln
3 Jahre
2000-08 - 2003-07

Informationstechnischer Assistent

Staatlich geprüfter Informationstechnischer Assistent, Heinrich-Hertz-Europakolleg Bonn
Staatlich geprüfter Informationstechnischer Assistent
Heinrich-Hertz-Europakolleg Bonn

Position

Position

Senior Android Developer

Kompetenzen

Kompetenzen

Top-Skills

Kotlin Scrum Android Java Git Android TV Fire TV Subversion SAFe

Produkte / Standards / Erfahrungen / Methoden

Summary

Senior Android Developer with 10+ years of experience in the full lifecycle of native Android application development, from concept to deployment and maintenance. Proven expertise in Kotlin and Java, building high-quality, scalable apps for smartphones, tablets, Android TV, and Fire TV. Adept at working in agile (Scrum/SAFe) environments.


Technical

  • Native Android Development
  • Kotlin, Java
  • Jetpack Compose, XML
  • Hilt, Koin
  • MVI, MVVM, MVC
  • Git / SVN
  • Gitlab CI / Jenkins
  • JUnit, Espresso, Mockito, MockK 

Betriebssysteme

Android
Experte
Windows
Fortgeschritten
macOS
Fortgeschritten
Linux
Fortgeschritten

Programmiersprachen

Kotlin
Experte
Java
Experte
C++
C
JavaScript
Python
Dart

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