Microsoft has an extensive recruiting effort. But we recently decided to try something new to try to find more people who might want to help build VS Online and Team Foundation Server. We added a Jobs page to visualstudio.com. It has a little info on what we do and links to job postings on the Microsoft careers site and some information about who we are. We've got quite a few positions open right now and are hoping to fill them as quickly as we can.
This is a bit of an experiment. If it works well, we will probably expand it to include other parts of Visual Studio.
Brian