I work on the Azure team. It’s one of the hottest areas in the whole company because it’s growing at an unbelievable rate. That leads to a lot of really interesting problems that keep life interesting. The chart below is a little old but it gives you a good idea at the rate of acceleration.
The future looks bright. There’s enormous room for growth even with heavy competition between Azure and Amazon Web Services. It appears that it’s raining money and the major cloud computing competitors are just trying to build enough buckets to catch it all.