The Flight Sim team (also known as ACES) has begun a hiring blitz for the next version of Flight Simulator and other projects which are being developed within the group. Here is a quick shortcut to the currently open positions. Note that more positions will be opened over the next few weeks.

http://members.microsoft.com/careers/search/results.aspx?start=1&interval=10&SortCol=JobCat&SortOrder=ASC