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While I was at Amazon, just before AWS, the entire internal network was monitored by a Lisp agent. I'm not sure if that is still true but it was kind of secret, and the internal wiki (only a few sentences) that documented its existence was removed with no deletion record.

Right before my position was outsourced to an entire remote overseas team, we had rolled out AAA* which conceivably cut out any unauthorized automated agents from the loop.

* https://www.geeksforgeeks.org/what-is-aaa-authentication-aut...



I also worked on a team at Amazon that did (still does to this day, as far as I know) lisp development. A system that was responsible for automated customer support workflows. And it had a visual programming environment for solutions architects. I worked on the Java backend of that.


I was just talking to someone about Java and they said that it's outdated but afaik it's still a major part of their internal infrastructure. Ofc, they're trying to eat their own dogfood which means they're trying as much as possible to move to AWS for internal services which is basically a mix of customized OSS services programmed in a wide mix of languages, but I imagine mostly C/++ and other low level languages encapsulated in various virtualization solutions.




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