I have the powerful skills for Flutter, because for last 3 years, I only engaged in mobile app development for android and ios using Google Flutter. My skills are the following: - flutter flutter responsible design based on real device size google firebase, variety social sign, FCM(Firebase Cloud Messaging), local push notification, alarm, google map(using google map & google places api), getting all devices infomation, calling Url -sending email(SMS), integrating with RESTFul API backend websock communication, communication with native module(android&ios using MethodChannel) google Admob, IMA SDK(integrating android native module and flutter for Admob) - twilio, agora.io, pusher, Cpanel, Digital Ocean, Docker, - MongoDB, MySQL, SQLite, GraphQL, AWS dynamodb, - backend: node/express, php/laravel