I am writing a custom shoppingcart and need a payment processing module and shipping module that I can integrate in application.
The shipping module needs to connect to UPS, Fed Ex, DHL, and USPS for real time shipping rates.
The payment gateway needs to connect to paypal checkout, google, verisign checkout, [url removed, login to view] , and 2checkout depending on the customers preference.
The work performed will be part of a product that I will redistribute and market. I will provide variable data that the modules will require and design the interface and backend. The developer will have to provide the code that calls out and returns data for the shipping rates and the payment processors.