Do I need to know the Irish language for part-time or full-time work in Ireland?

You do not need to know the Irish language for most part-time or full-time jobs in Ireland, as English is the main language used in workplaces. Roles in the private sector, especially in hospitality and tourism, generally require only English proficiency, which aligns well with your background. Knowledge of Irish may be needed only for certain positions in government departments or local councils, particularly in areas where Irish is commonly spoken. Unless you plan to work in those specific public sector roles, learning Irish is not necessary for employment in Ireland.