Facebook is to create more than 100 jobs at its international headquarters in Dublin.
The internet giant has begun advertising for new staff to work in a range of functions.
The jobs boost will bring Facebook's Irish workforce to 500.
"Ireland is a great hub of international tech talent which is one reason why Facebook has its international HQ in Dublin," according to Gareth Lambe, the acting head of office for Facebook Ireland.
"The announcement means we will be expanding our workforce across multiple disciplines such as user operations, safety and advertising," he added.
The announcement was made by the Republic's Enterprise Minister Richard Bruton, who said it represented a "major endorsement" of the technology environment in the Irish capital.
"ICT is a key sector targeted in the Government's Action Plan for Jobs.
"We are determined to build on the major successes in this sector in recent years, in particular by supporting the further development of the thriving cluster around Dublin's docklands," the Fine Gael TD said.
"The announcement of a significant expansion by one of the biggest companies on the internet, with the creation of 100 high-end jobs, is a major endorsement of the tech environment in Dublin and further confirmation of our city's status as the internet capital of Europe," he added.