Yes, as an international student in Ireland, you are generally allowed to work full-time during holidays.

Here are the details:
- During term time: You can work up to 20 hours per week.
- During holidays (normal college vacation periods): You can work up to 40 hours per week (full-time).
- The holiday periods typically include June, July, August, and from 15 December to 15 January.

Conditions:
- You must be enrolled in a full-time course recognized by the Irish government (listed on the Interim List of Eligible Programmes – ILEP).
- Your immigration stamp must be Stamp 2 (the standard for international students).

Note: Always check your university’s academic calendar for official holiday dates, and ensure you comply with the conditions of your visa.

If you need more details on working rights or want help selecting the right course in Ireland, feel free to ask!