BARMER App

I was one of the developers for the Barmer app, stepping in after several freelancers left the project in a challenging state.

My responsibilities were as follows:

  • Lead developer for the base application, which served as the foundation for four specialized modules.
  • Taking over and managing the Profile Management module (App+Web) based on React-Native-Web.
  • Proactively establishing and implementing code conventions for React Native and TypeScript, which significantly improved the quality.
  • Developing and implementing a simplified startup procedure for the entire application for React-Native, Android, iOS, and four different specialized modules.
  • Responsible for infrastructure development and optimization in an environment with a monorepo and multiple modules.
  • Participation in consulting architects and discussing architectural topics.
  • Technology support and point of contact for third-party companies (IBM iX, Adesso, BARMER) integrating specialized modules into the entire application.
  • Designing and implementing a dynamic module integration for seamless integration of specialized modules into the overall application.
  • Mentoring and supporting several developers.
  • Handling feature tickets and actively participating in organizational matters.
  • Optimizing the startup procedure for the entire application and refactoring inefficient code.
  • Conducting performance analyses and developing solution concepts as well as metrics for efficient screen construction on various devices.
  • Role as ambassador for the IBM iX Design System, in direct contact with the lead developer.
  • Resolving performance and bug issues.
  • Developing bridges for native code sections (Android + iOS => React-Native).