Insurance software provider Guidewire expects to hire 60-80 new staff at its Dublin offices over the next two years.
The new staff will provide consultancy support and product development resources to Guidewire's customers. Recruitment is already underway for product managers, web and mobile developers, anf other roles.
The company has leased new office space to support the expansion.
"We have been very pleased with the quality of talent and output from our Dublin office, and I regard our decision to start operations in Ireland as one of the best we have made in the last several years," Guidewire chief executive Marcus Ryu said.
"We intend to build on that success with a significant increase in our hiring plans and a deeper integration of our Dublin-based personnel into the career progression opportunities of the company, especially in Europe."
The company already employs more than 150 people here.
Jobs Minister Richard Bruton called the announcement "a great boost".
"What is particularly encouraging is how important the Dublin operation has become in a short time within this global company," Mr Bruton added.