I can speak for only one of the FAANGs, but the work I do there is definitely the most exciting to me personally from all the companies I've been at. There are challenging technical problems that require discussion with other engineers to design a solution. In most companies I've been before the challenges were mostly organizational and I had to deal with all of the "agile" crap to please PMs and managers, while the actual technical work was boringly easy.

It's not always rainbows and butterflies here either but I do feel much happier with the work I do here.

Well somebody has to be the one to annotate a million private and public SDK’s with @nullable !!

And once you’re done with that, there’s a whole load more refactoring for the latest language update!

The only difference at (most of) Google is that you would use grpc instead of ftp and protobuf instead of txt.