Pros
Comfortable, non-competitive work environment - not your typical financial institution. Option for some remote work. Very good benefits (notably pension and a matching 401k). Semi-rare opportunity to... work at a fairly large financial institution in Northern VA. Very rare opportunity to work for a large cooperative - working culture is different/better than other public and private institutions I have worked for as it is a non-profit and truly exists to serve the financial needs of its member-owners. I personally find it rewarding to be a part of. Extremely flat management structure: there aren't really wasteful layers of middle manager roles just to provide people job titles. Beautiful office and campus that is easy to commute to.
Cons
Comfortable, non-competitive work environment - not your typical financial institution ... doesn't pay as well (recent salary and bonus structure change is a step in the right direction). This has... also created situations where long tenured employees/managers have gotten a little too comfortable and set in there ways, change and progress can be slow. Extremely flat management structure: doesn't create a lot of opportunity for upward mobility within the company.
Pros
Optiver is very nice and good.
Cons
They are highly selective. OA