Pros
-Free lunches -Free massages -Free gym membership -Matching 401k Until the bonus numbers from IMC Chicago were published, I was quite obliviously happy with IMC. Honestly, my favorite part about working at IMC was leaving, I got a nice severance for my noncompete. The other good part about leaving IMC, is that I found job in tech that paid 50% more than what IMC paid me (salary + bonus). Developers skilled in Java + data + algorithms can make much, much more elsewhere these days.
Cons
The culture is very top-down, command and control. You do what you're told. Your opinion simply doesn't matter. I don't recall a single time I was asked for my input or opinion. Even for things that weren't your mistake, it's normal to be verbally abused and berated in front of everyone. A phrase I guarantee that you'll never hear there is "servant leadership." The management simply does not care about developers. The bottom bucket traders make about 10x the bonuses of the top bucket developers. The two managers were taking about more than everyone else (150 people) combined. The bonus system is not based on merit. Don't even get me started on the sexual harassment culture. There's a reason there are so few females working at IMC.