[CSEThrowaway]

Disclaimer: not an IBM employee here; I have only interacted with current/past employees and these examples are anecdotal:

One fresh-out-of-college software engineer spent the first year or so working on nothing but PowerPoints and watching "agile training" videos to improve his score on some kind of IBM social/point system. He moved to actual programming when he relocated to a different office. Then, one Friday, a manager came to him and said his project was shut down, and that he was starting on a new team that following Monday.

When I interviewed at Google, the woman I talked to at lunch (CS PhD) had nothing nice to say either, and she worked on Watson which seems to be their saving grace. She made a lot of the same critiques of the work environment there, also adding that Watson is mostly just a marketing stunt for non-technical customers.