Development of Social Website

I am looking for someone with a background in Facebook coding to develop the foundation for our new social website. We are a startup company and are currently looking to get estimates for the website development. We want our site to have a similar look and feel to Facebook in the sense that users will be very familiar with the interface. However that is where the similarities will end as we will be offering a very unique concept that could potentially compliment Facebook and attract many of its users. In fact, we believe our site will draw a new generation of users who will not use Facebook now. This bid would be for the standard interface to get the site up and running quickly with other key features to be aded in a separate bid.