Pros: Tons of opportunities; there will be some good teams doing almost anything you might be interested in! Moves fast! You'll learn a lot, both technical and business. The vast and varied businesses are generally well managed; upper management is very competent. Top-notch engineers are plentiful if you're in the pockets of businesses that are heavily tech-driven. Great internal mobility. You can transfer very easily. PIP culture is not real (stack ranking is real, though). I've only seen two cases in my seven years here, and both cases were people who were really low performers and given one to two years of coaching/opportunities to improve.

Cons: Doing the right thing for customers/business doesn't always mean the right thing for engineers. There are orgs that seem to operate with the mindset that engineers are expandable resources. Always have fresh meat to churn through, instead of investing in more sustainable growth. The quality of teams varies widely. Bad teams will break/burn out even strong, ambitious people. It's very real and sad to see. Find a new team quickly if you land in a team like this. Not all business segments need top-tier talent, but even the ones that do can't attract the best sometimes.

Pros: Salary, great products to work for.

Cons: Not that I can think of right now.

Pros: Very strong IT engineering, with lots of extremely smart people. There is plenty to learn, and interesting tech challenges. Minimal formalism exists, and engineers often have direct contacts with their business customers. Generally, there is very little balance. Practically everybody I've met in different parts of the organization were true professionals.

Cons: Lack of a formal testing organization. Production support is performed by developers (pager rotation). You'll often get paged in the middle of the night just to find out that something broke somewhere, having nothing to do with what you are supporting, and people have no clue whom to page. Engineers don't last long (many leave in 1-2 years); turnover is pretty high. Benefits are rather mediocre for a large company.