Interactive video content developer/ programer

Hi, I am CEO of a London based video production company. We have clients who need Interactive Video content. We are looking for a developer to work with on an ongoing basis. He or she will have experience with this, creating: "Hot Spots", Click to buy, click able links to the from the video to email host, external sites, other parts of the video, mutiple choice questions, Sponsored links, and the ability to measure analytics, for example, see where the links are coming from in the world, how long videos have been viewed, response/ conversion rates etc. For an example of the type of functionality we are looking for, please see this video as an example. [login to view URL] Best regards, Matt