Microsoft is expected to reveal plans to hire 600 people for its Irish operations.

Taoiseach Enda Kenny is due to attend the announcement at the company's Dublin campus at Sandyford Business Park this morning. 

It's understood 500 Jobs will be created in a newly established Microsoft Sales Centre and a further 100 are being made available across other areas including finance, operations and engineering.

Microsoft first opened its doors in Ireland in 1985 with a small manufacturing facility employing just over one hundred people.

It now employs over 1,200 full time employees and 700 full-time contract staff.