Pramerica Systems Ireland is creating the jobs over the next three years and says there is potential for further growth.
The company, which currently employs 12-hundred people in Letterkenny, is building a new campus that could accommodate 18-hundred staff.
Pramerica is a subsidiary of US based Prudential Financial Inc and provides the parent company with software and business support.
Jobs Minister Richard Bruton says it's a vote of confidence in the region.
