Production Ready Web & Mobile App

I already have a working Python-based prototype powering both a web front-end and a test Android build. The core functionality is proven; what I need now is an enterprise-grade, production-ready solution that runs smoothly on iOS and Android and can be deployed to my own private server... (Budget: $250 - $750 USD, Jobs: Android, Django, iOS, iPhone, Mobile App Development, Python, Security, Web Development)