Amazon is a weird company, and it has lots of parts. Even at, say, Microsoft there can be a huge amount of variation from division to division and team to team on how things are run, the corporate culture micro-climate, etc. At Amazon this is even more true, each team is substantially on their own, and while there is a certain amount of global overarching corporate culture every group is different and some groups buck against the trend successfully.
They have one of the biggest logistics systems run by a large amount of software in the US, one of the biggest robotics deployments in the warehouse, AND they developed AWS on the IT side. Amazon's software is largely behind the curtains but they are definitely a tech giant.