Business Directory with Coupon Integration

We are looking for someone skilled in creating reliable framework, and easy functionality. After website has been built and all systems is in place, this person must be available to do further development on per hour basis. It is essential that this person must be skilled to bring the different systems together. Please do not bid if you know you will have problems with the required skills. In Summery - Business directory integrated with a coupon system. (Businesses can issue coupons) - Business listing membership with South African payment gateways. - Back-end for Administrator, Business, and Clients. - Mobile sms payment integration for buying a coupon. We will provide the design outlay and step-by-step functionality to shortlisted developers. We hope to finish this project within 60-90 days, and payment will be made in four payments as we progress.