Hi,
Looking at your requirements, I can say with confidence that I will be able to complete this project in a short period of time. As your project requires web service development, I think I would be able to work on it effectively as I have worked with different server side platforms.
In android, I have experience with the following concepts
1. Fragments
2. Services
3. Content Providers
4. ListView with Loaders and Loader Managers
5. Services
6. Android Client for - Rest with JSON
7. Android Client for - SOAP with XML
I also have my very own library of User Interface elements that I have developed so far. Please let me know if you are interested.