Yes, you can apply for permanent residency in Ireland if you have a valid Irish Work Visa. International professionals with a current Irish work permit can seek long-term residency (Stamp 4) if they have lived and worked in Ireland legally for 5 years straight. Those who hold a Critical Skills Employment Permit may be able to apply after 2 years. Long-term residency lets people live and work in Ireland without needing a work permit. After living there legally for 5 years, some may also apply for Irish citizenship if they fulfill the character and residency rules.