Pros
The company, at just under 1000 people, is a great size. And in the tech space, anyway, you'll work with some extremely talented people. Lots of opportunities to learn. Salaries are very competitive.
Cons
The company is prone to rapid changes in strategy which lead to frequent mass layoffs. (The strategic shifts may well be the right move, but the layoffs either show poor planning or a need to look good to investors first by looking big then by cutting costs.) Severance packages are better than nothing, but barely. They don't provide any support for managers, so if you get a good one it's pure luck. HR department is constantly overwhelmed and constantly misses deadlines with no warning. Diversity and Inclusion -- no, sorry, DEIB -- is great at political correctness and adding letters to things but makes no practical impact at all. Not really a con (or a pro), but expect sudden, rapid shifts in direction at the whim of big clients. (There aren't many clients, so each one is precious.) Benefits are meh.