Online Book, Music , And Movie Streaming service - repost

Hello I am looking for a person or company who know, how to build a Streaming Site like , Netflix and pandora , Where My users can listen to songs that they like and my movie users can search for films they like, and watch them from our website or their tablet and mobile device, I will Need a person who know how to build the backend Admin to merge with our already existing admin. This site will also have audio books that I will need to be able to stream as well. Admin needs to be user friendly for workers the company hires. For more details please respond to this post.