Amazon

As with all companies, your experience will depend on your team. My team began pretty okay. There was decent documentation and support for onboarding. The leadership principles sound nice, but my team didn't follow them.

Don't expect any support. Don't expect issues to be resolved. Your manager is there to track you and decide if they like you, not help the team fix issues. There were a lot of tasks that were not well specified (no acceptance criteria or requirements). This and some other issues caused me to raise these concerns to management and senior engineers. My coworkers began to treat me poorly and were unkind. Pretty sure one of them hacked my phone. I reported some harassment and got PIP'd the next day. I finished the code and opened a CR as required for my pivot plan on time, but my coworkers didn't review it. HR said this was not an issue.

Stack ranking is easily gamed. Goodhart's law. There should be a way to review managers.