Germany's Depfa Bank, which employs 300 people in the IFSC in Dublin, has confirmed it is possible Irish operation could face job losses.
Depfa has been bought for €5 billion by Munich-based Hypo Real Estate.
A spokesman for Depfa said merging the two companies would result in 'downsizing in various locations'.
It is expected the rationalisation will deliver cost savings of €60m.
'No final decision has been made, but we will be putting together the two operations and some redundancies generally should be expected,' the spokesman said.
