Pros: there shouldn’t be a lot of red tape or layers of middle management to deal with. If you have an idea, you know exactly who you have to convince to get them to buy in. Your contributions will have a visible impact right away. If you get along well with the team it may seem like too much fun to really be work.

Cons: resources will likely be scarce. The “IT Department” might just be Ed, one of the greybeard Linux guys. (or worse yet, Ed might have just retired, and they think you’re the new Ed). There are only a handful of people “in charge” and if you don’t get along with them you may not be able to get much done.