Business software company SAP are to announce 250 jobs later today.
SAP already employs around 1,200 people across its three sites in Dublin and Galway.
The Taoiseach will be on hand for the official announcement at Citywest in Dublin later.
Around 150 jobs are to be created in sales and services at the firm's Citywest base in Dublin.
One hundred positions will be created in Galway at SAP's new Cloud Services and Support Centre.