Don't bother working for a large company. If you haven't seen it already, just watch the movie Office Space (https://www.imdb.com/title/tt0151804/) and you can see everything you need to know about doing software at a big company.
That being said, you have to understand that your new job isn't at a "Big company", your new job is at Amazon: a completely different beast. I live in the greater Seattle area and I can tell you there are two types of Amazon workers doing software development - those who quietly work their jobs and never talk to non-Amazon folks about it one way or the other (e.g. "my Amazon job is great! You should work here!" or "My Amazon job is hell"), or people who are Ex-Amazon who have NOTHING good to say about working there (except for the fact that they left the job). Be careful.
That being said, you have to understand that your new job isn't at a "Big company", your new job is at Amazon: a completely different beast. I live in the greater Seattle area and I can tell you there are two types of Amazon workers doing software development - those who quietly work their jobs and never talk to non-Amazon folks about it one way or the other (e.g. "my Amazon job is great! You should work here!" or "My Amazon job is hell"), or people who are Ex-Amazon who have NOTHING good to say about working there (except for the fact that they left the job). Be careful.