The main advantage is the active development of the IT cluster. Branches of such large IT giants as Google, Apple, and Facebook are located in Dublin.
They are actively looking for employees from abroad. Salaries for specialists here are not as high as in the USA, but still quite decent. They say that even more than in the UK. But, you need to take into account that about 30-50% will have to be paid in taxes.
How can we not mention the beautiful nature. It is very beautiful in here. The country is green all year round, plants bloom even in winter. Wherever you look, there is sea everywhere. In terms of ecology, Ireland also does not lag behind; the air here is very clean. And, of course, the climate is very mild. There is no snow in winter and not too hot in summer.