Chilja Gossow
Senior Software Engineer Android at Self employed
Cologne, North Rhine-Westphalia, Germany
Summary
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Rockstar🎓
Top SchoolChilja Gossow is a Senior Android Engineer based in Cologne with six years of focused mobile development experience and a background bridging SAP consulting and business information systems. As a freelance Android specialist since 2019, Chilja has shipped production apps and contributed to high-profile open-source projects such as the Corona-Warn-App, implementing critical features like consent persistence, DI refactors, and notification fixes. Prior roles at eGym and several startups demonstrate a track record of building robust mobile experiences and integrating apps with backend services. Comfortable moving between hands-on coding and architecture, Chilja brings a pragmatic, security- and user-conscious approach informed by earlier enterprise SAP work. Notably, the mix of consulting, freelance, and open-source contributions shows an ability to quickly adapt to different teams and codebases while maintaining delivery focus.
6 years of coding experience
4 years of employment as a software developer
Master's Degree, Business Information Systems, Master's Degree, Business Information Systems at Universität zu KölnBismarck High School, North Dakota
English, German, Spanish
Github Skills (12)
kotlin10
android-development10
ui-design9
refactoring8
uitest8
android-test8
refactor8
android-gui8
ui-testing8
navigationview7
navigation-drawer7
navigationbar7
Programming languages (1)
Github contributions (5)
corona-warn-app/cwa-app-android
Nov 2020 - Sep 2022
Native Android app using the Apple/Google exposure notification API. The CWA development ends on May 31, 2023. You still can warn other users until April 30, 2023. More information:
Role in this project:
Mobile Developer (Android)
Mobile Developer (Android)Contributions:1239 reviews, 282 commits, 382 PRs in 1 year 10 months
Contributions summary:Chilja primarily worked on the native Android application of the CWA app. Their contributions included persisting consent for key submission, refactoring dependency injection, and implementing UI features for submission consent, test results and the submission flow for QR code test and rapid tests. They also made UI adjustments and addressed notification issues, including implementing IDs.
exposure-notificationnative-android
chiljamgossow/Spanish
Dec 2022 - Dec 2023
Spanish conjugation trainer
Contributions:46 PRs, 122 pushes, 28 branches in 11 months
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