Pros
Pay is ok. The work from home flexibility is nice. And, since there's so much red tape, you actually don't have to do that much to be better than anyone else. On the other hand, if you actually want to make a difference, if you are a programmer that wants to innovate, then Chubb is most certainly not the place for you unless you have a product on the side.
Cons
It used to be, before the merger, that development groups were entrepreneurial and genuinely agile. Now that we have completed our merger, our IT has been reorganizing and we've added loads of BAs, PMs, auditors, managers and business owners such that the typical programmer in IT now probably is carrying the product weight of a half a dozen people who work in IT but do not actually make software. Red tape, finger pointing, and risk adversity are now baked into the corporate culture.