Hi
I have gone through your reference AND i CAN ASSURE YOU i can help you in this.
As in past we have also done many complex system.
We are the IT company having 5+ years of experience in App and Web development, App and Web designing, backend, SEO/SMM cloud services, and enterprise solutions.
We have knowledge of Xcode IDE(Objective-C), Swift, Eclipse IDE, Android SDK, ADT Plugin, Java Programming, JSON, XML, Utility APIs, MySQL and SQL server database, super level UI design and much more.
we are proficient in PHP, CodeIgniter, WordPress, MYSQL, HTML, CSS, JAVASCRIPT, payment gateway integration, JQUERY and AJAX and designing through Adobe Photoshop, API, SSL, AWS, Linux and network administration, HTML, , open-cart, Mysql, database,laravel, CSS2/3.
please come to chat