Are there good universities in Ireland for AI and ML where my son can get an internship during the course for a Master's?

Yes, Ireland has several strong universities for your son's AI and ML master's, including Trinity College Dublin, UCD, the University of Limerick, and DCU. Keep in mind that Irish master's programs are intensive one year courses, so your son is more likely to get an industry linked dissertation project over the summer than a formal mid course internship. He can also use the two year Stamp 1G post study visa to build real work experience after graduation.

Top Universities for AI and ML in Ireland

How Internships Actually Work in Ireland

Because most Irish master's programs run for just one year, they rarely build in a multi month corporate internship like some US or European two year programs do. Instead, your son's course will likely end with a substantial research dissertation or an industry linked project over the summer months, which many students use to collaborate with corporate partners.

My Advice

Ask each university directly how their final dissertation or project phase connects to industry partners, since this is where your son will get his practical exposure. Also plan around the Stamp 1G post study work visa, since it gives him two years to convert that dissertation experience into a full-time AI or ML role.