Pcb designing for harddisk docking station

The project include designing pcb based on bridge controllers for docking station. The docking station will consist of 5 bay harddisk space with a single usb interface to host. More like a direct attached storage.the designers needs to have the embedded system knowledge specially the usb and sata protocols as well as should have worked on bridge controllers.most of the firmware will come with the IC but the designers should be able to provide test system for the ready pcb as well as some tweeling of firmware.