SalesForce Expert Needed for API v.2

We have an existing SalesForce API for our email marketing software. Our current development company has dropped the ball too many times and we are looking to replace them. We are looking for a [login to view URL] expert. ONLY BID ON THIS JOB IF YOU HAVE EXTENSIVE SALESFORCE EXPERIENCE. We will hire only certified [login to view URL] developers who have an Enterprise version of salesforce. Must also have strong knowledge of PHP. We will have ongoing needs and will pay per hour for work. Here is a brief scope of immediate work: 1. Create a sandbox for testing purposes 2. Small bug fixes 3. Fix installation process--currently, API needs to be configured by logging in to each user account. We want to allow admin to configure for all users. 4. Add functionality to the Campaigns Tab to allow users to send email campaigns via our interface. We currently have this functionality in the Contacts Tab and simply need to add the same functionality to other areas. We need to start on this project ASAP and will select a vendor soon. ***PLEASE SUBMIT YOUR HOURLY RATE ***LET US KNOW WHEN YOU COULD START THE PROJECT.