Write some parts of bigger Android application

We need a help in developing the Android app, that will be used within an international company to allow the employees organize events across the world. Since the structure and architecture of the application is set we expect that code will adhere to existing coding patterns. We use Clean Architecture pattern, RxJava, Dagger2, Retrofit2 and Data Binding Library. Please apply only if you know these technologies, since they require time to learn, but we expect that you start to code in short time. In the beginning we would like you to implement one use case - it includes activity with event time line and the detail view for time line item, the data retrieval and caching logic and tests. There are already few use cases implemented that you can use as examples. If during this time our corporation will evolve successfully we will provide more job.