Hello Mate
My Understanding about your project:
1. you are looking for an Android developer.
2. you want to design and build the taxi App.
3. You want to implement some functionality in the app like GPS location, Google Map, taxi type, rating, payment accept type etc
4. You want to use freebase as a Backend for the app.
I have an experience of 5 Years in Android Development . I am able to provide you all the required services and functionality for your app. I am always committed to my work and value the time of my clients.
I always look forward for long term relationship with my clients.
Waiting for your positive revert,
Warm Regards,
Vijay