Amazon's a bit lighter on the C++ these days and has quite a bit of Ruby. As usual with Amazon, though, this is an area where it makes more sense to talk in te

Amazon's a bit lighter on the C++ these days and has quite a bit of Ruby. As usual with Amazon, though, this is an area where it makes more sense to talk in terms of individual teams than the company as a whole. Some teams build almost everything in Ruby and are open to new languages. Others are pure Java shops. Other than Infosec approval, it's really up to teams to decide for themselves.