Pros
* Excellent teammates * Great internal tools and resources * Many learning opportunities * World-class products to work on * High pace of innovation * Huge writing culture. This leads to excellent on-the-fly documentation and elevates the level of product planning. * Flat structure. There is a feeling that anyone can speak up on any issue--just make sure you have a solid backing to your thoughts or a compelling idea if it is not yet well-considered.
Kontras
* Extremely team dependent. I know some that have moved around many times before settling into a team they liked. * Teams can be isolated from one another. * Culture is hit-or-miss. The leadership principles are excellent at unifying such a large organization's mindset and objectives, but they can also be used as a cheap substitute for true critical thinking. * You will never be asked to work late, but many do from simple passion. If you want to stand-out, you may find that you have to do the same. * All pros and cons essentially break down to this: Amazon is a huge company. There are opportunities and difficulties that will inherently arise from that, but it manages them fairly well.