create save and open fichers lick in trello specs

Hi I have been specializing in mobile (native, React native, hybrid, Xamarin) and web(website, backend) for 7+ years. I have rich experiences in - VoIP mobile/web app using webRTC, 3rd party, streaming server - On demand system such as UBER style booking , Delivery - Sharing , Ddating - Voice&Video&Text Chatting - Video&Audio players , editors - E-commerce - Fitness App - Spy app - Guard patrol and School management system based on Nfc Read/Write- Live streaming , - GPS tracking, GEO fencing on GoogleMap , - Payment integration(PayPal , Stripe , Braintree , Peach , PayTabs etc) , - QR generating and scanning - Responsive mobile site - Bluetooth&Wifi app … I`d like to work for your project. I`m looking forward to hearing from you soon. Thanks.

Hello, 
 Being a senior Xamarin developer in C#, .NET, XAML, Visual Studio, iOS and Android platforms , I can better help you to complete app tasks using these platforms. I have already developed and published 50 + mobile apps to the mobile market. Please provide your complete requirement so that we can start work for you Thanks