[jerglingu]

I left about a year ago, but the universality of tools and stack was not a thing in the ~3 years I was there. Retail and AWS are split and use different stacks. Additionally, the company was in a drawn out multi-year process of deprecating old tooling (including Odin), so you had teams or orgs that were in-between these old internal services and new internal services (or off internal services altogether and on "native AWS"). If cross-team interoperability demanded that certain tooling was to be used, many times you could inadvertently hold back or screw over another team by deciding to stay or move to the new tooling.

Not to say it was all bad - some of it was certainly necessary. Especially for security - IMO the systems of Amazon are great with security, but not necessarily the spirit of the company. Without all that bureaucratic annoyance, there 100% would be existential leaks or breaches coming out of Amazon with how fast and loose everybody treated security in the name of "Deliver Results" .