Asterisk Outbound Dialer & Web App

We are looking for a provider that can develop an Outbound Dialer for a Phone Message Broadcasting System using Asterisk. The Outbound Dialer will also be synchronized with the website application that allow customers to sign up, create campaign, manage their billing, manage their phonebook, view report etc... The outbound dialer will need to work in a cluster environment with the ability to handle the maximum calls asterisk allow per server. We will provide more information during the interview process. Thanks