Five hundred new jobs are being created over the next two years by the technology firm Amazon.
The company is looking for data centre technicians, software engineers and customer support staff for its European hub in Dublin.
With more than a million customers worldwide the business is growing its retail side with new products for devices like the Kindle.
Amazon set up in Ireland in 2004 and already employs more than 1,700 people here.
Its last expansion was two years ago when it hired an extra 300 workers and valued its Irish operations at around €1.5bn.
"We have already exceeded our previous talent growth targets for Ireland set in 2014, which is testament to the abundance of expertise we have been able to find in the country," said Jeff Caselden, general manager, Amazon Ireland.
"We've been an active member of the Irish technology community for over a decade now and Ireland's creative culture and the diverse set of technical skills we're able to recruit for here make it an ideal location for our rapidly-expanding business.
"Some of our most exciting creations we have at Amazon stem from the work we do here for our customers."
The investment is supported by the Department of Jobs, Enterprise and Innovation through IDA Ireland.
Taoiseach Enda Kenny said: "The Irish Government is continuing to prioritise making Ireland a fantastic location for investment and innovation.
"This announcement of 500 new jobs by Amazon is a testament to Ireland's reputation as a leading European location for technology and digital industries."