I am a senior mobile application developer with 7+ years experience in building high quality iOS and Android apps with backend server. I am very proficient in Swift, Objective-C, Java, Node.js, AngularJS and PHP. Especially, I have strong experience and very deep knowledge in Neo4j which is widely used in building very complicated social based app such as FB and Google+. I am very expert in this field including both of frontend and backend. My experience range includes - Social Networking App using Graph Database - Chat/Messenger App using Ejabberd or OpenFire - Payment Gateway Integration with PayPal and Stripe - Fitness App - Location based GPS Sharing App - Uber Cloned - Photo/Video Editing and Sharing App - Instagram/Tinder Cloned - Travel Sharing/Booking App Please contact me to discuss about your project in detail and determine how my skills will positively contribute to achieve your business goals effectively.