Pros
Amazon is a place where people are encouraged to look for challenges to step up to. If you're hungry and nail these opportunities, there's always more, bigger ones to keep knocking down. Top talent at Amazon is rewarded extremely well. Everybody here is scary smart. The brightest can rise fast. As far as software companies go, Amazon is definitely top tier. Our technology is unbelievable, and you won't believe some of the awesome stuff we're working on.
Kontras
Benefits are just ok (probably more than offset by comp though). The environment can feel like a startup still in a few places around the company, but YMMV and you're more likely to find yourself in a division that feels corporatey. This is much less the case for engineers who are generally shielded from too much BS by their managers. Expect to work longer than 40 hours a week on most teams, in most roles. There can be slack times, but when launch approaches (or it's Q4 for anyone working near the retail website), you'll find yourself leaning in pretty hard for short bursts.