Part time (3hrs) Android developer

We need an experienced Android developer to modify an existing app and build new features, we need the developer to be available at a certain time for 3hrs 6 days a week for about 3 months and could be more. Our timezone is UTC+3.

Required skills:
- Clear and quick communications
- Good UI/UX experience
- Experience in building food and ordering apps
- Experience in push notifications and mainly firebase
- Experience in payment integration and handling
- Experience in real-time frameworks (socket.io, etc)

Budget: 450 USD monthly