Freelancer profile translated to English.
Back to original languageAbout Daniel
I support companies and startups in theplanning, development, and further development of modern mobile apps– from the initial prototype to release in the app stores.
As afull-stack developer with over 15 years of experienceand a strong focus on mobile, I have been supporting theSportschau app of the WDRfor 5 years – one of the largest sports apps in Germany.
In this role, I was responsible for thecomplete rewrite in React Nativeas project manager and have been responsible for its continuous development ever since – in close collaboration with product management and editorial staff.
My focus is on **iOS development with React Native**, while my colleague handles Android-specific topics.
My Focus Areas:
- Cross-platform app development with React Native
- Quick familiarization with existing codebases
- Clean handover and clear communication with in-house teams
- Agency background with a focus on quality, scalability, and clean code
What sets me apart:
- Technical enthusiasm & hands-on mentality
- Clear, structured exchange with stakeholders
- Experience in agile product development and technical conception
Would you like to modernize an existing app, start a new project, or bring in short-term support for your team?
Write to me – I look forward to your inquiry!
German
Native or bilingual
English
Fluent
Can work on-site
Köln (up to 50km)
Experience
- Codevise Solutions GmbHSportschau AppSPORTSJanuary 2021 - Today (5 years and 5 months)Köln, GermanyDevelopment and ongoing further development of the Sportschau app on behalf of WDR.Technology: React Native with native components for iOS and Android (e.g., Apple CarPlay, iOS Live Activities, Android Auto)
- Codevise Solutions GmbHRuby on Rails DevelopmentFILM AND AVAugust 2018 - August 2020 (2 years)Köln, GermanyPageflow is a storytelling software that was developed collaboratively with WDR for digital journalism.The tool enables the easy creation of full-screen web stories.Texts, photos, video, and audio files can be combined with interactive elements,such as infographics, 360° videos, and hotspots to create complex narratives.More information: pageflow.io
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Education
- Dipl.-Inf. Media InformaticsFH Gelsenkirchen2007