Object orientated PHP programmer required.

Looking for a PHP programmer/developer to build a shopping cart function that can be integrated with an already existing bookings and management system, which is written in object orientated PHP. We sell our software as an off the shelf product to the tourism sector. The software files are then transferred onto the clients own server and they run a installer program to basically pull the software together and create the booking system. Recently we have need to include a shopping cart function that can be effectively bolted onto the front end of our system. Also our software may require to be altered to allow multiple selections to be processed through it.

This is only the 1st phase of the further development of our system, there will be more changes and upgrades to come and also we are looking to develop booking and management software for different areas of our business sector and expand into new areas in the future.