Finance and HR cloud based software developer Workday is to create 1,000 jobs in Dublin.
The roles will come on stream over the next two years at the firm's European headquarters.
The company also said it will build a new European headquarters in Grangegorman in Dublin in order to house its growing workforce.
"Our presence in Dublin, and the incredible talent we've been able to hire here, have been critical components of our innovation and customer service efforts - both core values at Workday," said Chano Fernandez, Co-CEO, Workday.
"We see great opportunity ahead as we help some of the world's largest organisations with their digital transformation efforts, including how they adapt to change, plan for the future, and support their employees in the changing world of work," he added.
The latest news follows the company’s announcement of 400 jobs for Dublin just over a year ago.
The company first came to Ireland in 2008 when it bought Irish technology firm Cape Clear.
The business currently employs around 1,700 people in Ireland.
The roles announced today will be in a variety of areas including product development, engineering and data science, sales, services and user experience.
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"Today’s announcement of 1,000 new jobs by Workday is a very significant endorsement of Ireland as a place to do business and in our reputation as a leading tech hub in Europe," said Taoiseach Micheál Martin, who attended the announcement this morning.
"It is a vote of confidence in the skills and talent of our workforce and in our continued attractiveness to leading global companies. I also welcome the company’s decision to construct its new European headquarters at Grangegorman in Dublin," he added.
As it awaits the construction of its new European headquarters, Workday will become the anchor tenant of the Dockline Building in Dublin 1.
This will provide additional accommodation alongside its existing headquarters at Kings Building.
The news was also welcomed by Tánaiste Leo Varadkar and IDA Ireland which supported the investment.
"Workday's investment in the planned Grangegorman campus and the addition of 1,000 new roles demonstrates the company’s long-term vision for its Irish based European HQ," said Martin Shanahan, IDA CEO.
"The economic impact of this investment through the capital spend and creation of high value employment is both a significant win for Ireland and a huge vote of confidence in Ireland’s technology ecosystem," Mr Shanahan stated.
"It will also be a significant boost to the business environment and increased economic activity in this North City area of Dublin," he added.
The new European HQ will be built on lands in Grangegorman purchased from the Health Service Executive.
