Amazon

It is a place with very interesting technical challenges. If you are looking for great technical problems and bright people to work with, then this is the right place.

Also, it has a get-things-done culture: things develop very rapidly and it is a short distance from idea to execution.

The biggest disadvantage of working here is the on-call burden. You are required to carry a pager on a rotation basis, and it binds you down whenever you have it. Some teams have a very heavy on-call load, which interferes with regular development.

Using support teams to reduce the support and operational burden on software engineers would let them focus on what they do best, rather than try to fix operational problems and deliver new products simultaneously.