Hello Maddy,
There are a lot of Irish students in my class which may indicate that you can work in Ireland with this degree. I know that this degree is eligible for many countries in Europe. But to be sure, I would contact the International Office.
It depends what kind of work she will be doing. If it is something in the hospitality for example, no dutch is really required. Most of the people in The Netherlands speak English. But some jobs prefer that you can also speak Dutch. So it is very hard to say.
- Savan