More than 300 new jobs are being created in Donegal by Pramerica Systems Ireland.
The software and contact centre firm will build a new, state-of-the-art campus in Letterkenny and will see the 330 positions created over three years.
It says there is also "potential for further growth in the longer term."
The new site is approximately one kilometre from Pramerica's existing facility in Windy Hall, within the same business park.
The first of two construction phases will begin later this year and will be completed by summer 2017.
The company currently employs more than 1,200 people in Ireland.
The new job opportunities will include senior IT managers, project managers, business analysts, data scientists, actuaries, accountants and a wide range of technology support and professional services roles.
Taoiseach Enda Kenny said: "This is a major jobs boost for both Donegal and the north west region of Ireland. The government is determined that the jobs recovery is felt in every part of Ireland."
Speaking on site in Pramerica Donegal, Jobs Minister Richard Bruton added: "Today's announcement that Pramerica, a huge employer in Letterkenny and a world-leading company in its field, is creating over 300 extra jobs with the capacity to double that over the coming years, is a massive boost for Donegal and the entire north west".
Pramerica provides services including back office processing, technical support, actuarial and financial services, digital media, data science and software testing.