There are jobs. The question is where and what she wants to do. It will also depend on how she carves out her niche in fellowship. Neurocritical care is quite popular now. Of course in 3 years the market may change, and that's near impossible to predict. But in general, there are more jobs than people for PICU. You can look at pedsccm.org to see some job availability.
Salary is going to vary quite a bit. Big academic centers will pay significantly less than private practice models, usually less than 200k. The trade off is that the number of clinical hours/weeks, is less, giving you more time to pursue academic interests. How much you will be under the gun to publish depends on the institution. Private practice will expect you to work more (maybe 16 shifts a month, maybe up to half of those nights), but pay more. There are a number of smaller PICUs with good residency programs that pay quite well in a private practice model, but are still very academic in practice, but don't require research. You will still work a bit more than in an academic center, and you may not do the 'big' cases (major transplants and things like that), but these places can be a great place to work.
Again, there's a huge amount of variation.