Build a Vpn client for Android

I am a Software developer with 7 years of experience in the development platform. I am Full-time Freelancer. - I have worked with UI branding and custom UI controls - I have worked with eCommerce apps, CMS, HMS, Custom Web Applications. - I have worked with in-app maps and working with the native Maps app - I have done Rest and Soap API integration with XML/JSON parsing - I have experience of teamwork with SVN or GIT code management. - I have experience of third-party API integration like Facebook, Dropbox, twitter, linked in, Payment Gateways Have you any concern? Please feel free to ask Areas of Expertise - Xcode, Objective C + Swift, - Apple push notification, Google cloud messaging, XMPP framework. - Google Map SDK, Apple MapKit, GPS framework. - Payment Integration, Paypal, Alipay - Eclipse, Android Studio, Java, Native Android SDK, Phone and tablet programming. - PHP, MYSQL, REST API, SOAP, Amazon Web services and Parse framework for backend development. - PHP, Wordpress, Wix, eCommerce, Magento, Shopify, Django, Woocommerece, Joomla, OpenCart - Laravel, BigCommerce, Angularjs Bootstrap, CSS, Codeigniter, Amazon Web Services - SEO, Web push notification, Google cloud messaging, XMPP framework, Google Map, Apple MapKit, GPS framework. - Flyers, brochures, postcards, one-sheets, posters, letterhead, business cards, brand guides - Logos, Illustrations & clip-art - Textile Designing, Clipping.