I am a senior full stack mobile developer with over 5 years' experience in mobile(Android/ios) application development. I offer for you. My expertise is Android/IOS app development(Swift 4/3/2,Objective-C,Java),Anglar.js,Firebase/Bac4app,React Native and Web Service(Node.js,Python, PHP) development. My mobile apps as well as my professional work stands up with high quality, professional designs, high standards in safety and reliability. Always I Welcome!