Amazon

There is a high standard for every aspect of a product/feature release. You have to achieve operational excellence in everything. You are not only coding but also need to understand and dive deep into all related topics and research to make a successful product.

Not a good place to help or learn good coding practices. There is no time to do good coding design. Delivery results and customer obsession require that you finish coding as fast as possible.

Don't expect good work-life balance, because Amazon requires you to make contributions to see the results from your investment. Get used to on-call, even if the team is not officially on-call. There will still be many things/bugs to process because there is not enough time to write good quality code.

You are always in the debt of someone else, or your own previous release, because there is no time to think about it well and thoroughly. So, you need to prioritize or balance well to catch up with the speed of the company.