Amazon

If you are interested, and you have a long breath, you can work on the most top-notch projects and apps there are.

Or you can work on only one project from start to keep-the-lights-on forever.

Career-wise, it is quite tough to advance, and you need to put in the extra hours, considering that the overhead due to lack of documentation or due to outdated internal tools is not trivial.

But you signed the contract, you are fully conscious where you are, so no excuses.

On the other hand, you learn a lot, literally, even looking outside your blinders, and everybody is willing to share knowledge with you.

I, for myself at least, make good use of it.

It will come in very handy.

Maybe some effort into updating the old internal tooling.

Two months in, I was already part of a re-org which resulted in my team and me joining a totally out-of-topic senior management team that did not know what to do with us. The re-org game almost destroyed my previous two companies; use your cards wisely.