Thanks for the advice!
Just to clarify, I wouldn't be looking to take up employment and/or residency in a non-Irish company and/or country, nor a European branch of an Irish company. It would effectively be so I could work an Irish job as an Irish domiciled employee 'from home', except 'home' in this case would be a temporary stay in another country (more like a long holiday while I keep working my regular job part time). The work itself and proceeds of it would wholly be for said company.
From what I can see, most EU countries, or at least the ones I was looking at as potential destinations, have a 183 day threshold for tax residency so I was thinking if I stay a shorter time than this then I can keep my tax residency in Ireland and handle everything normally through the Irish tax system. I'm not looking to change my tax residency to try to save on my tax bill as I do not plan to stay away from Ireland for more than a year maximum and I'd prefer to keep everything as straightforward as possible.
I will aim to get it squared away more officially before I pull the trigger but was looking to see if anyone had previous experience in a similar situation.