An Post has initiated a voluntary redundancy scheme that could see up to 300 staff leaving the organisation.
In a statement the company says the latest offering is for managers and staff across its corporate centre and support services.
It has identified in excess of 250 full-time roles that could be made redundant.
As part of the plans the location of An Post's Headquarters at Dublin's GPO is being reviewed.
In a release issued today, An Post CEO David McRedmond said: "The voluntary leaver programme is the latest step in An Post’s plan to modernise every aspect of the business as An Post transitions from the old mails world to the new world of e-commerce and digital services.
"We have made great strides in the frontline delivery service, relaunched our parcels business and reached agreement on the transformation of the post office network. A reshaped HQ will be core to achieving the vision of An Post in the new world."