AIB is looking to cut its workforce by 150 over the next three years.
The bank says the voluntary redundancies are planned in areas it can "increase efficiency and automation or where fewer colleagues are required".
The plans come after a consultation with the Financial Services Union.
The bank says any voluntary redundancies will be under an existing agreement between the bank and the union.
An AIB spokesperson told Newstalk it is part of a three-year strategic plan.
"Following consultation with the Financial Services Union, we are proposing a maximum of up to 150 redundancies on a voluntary basis over the next three years," they said.
"Any voluntary redundancies will be under the auspices of the existing Foley Agreement between the bank and the union.
"Our three-year strategic plan focuses on serving the bank’s customers, further greening of our loan book and delivering greater operational efficiency.
"The voluntary redundancies planned are in areas where we can increase efficiency and automation or where fewer colleagues are required given that legacy issues have been largely resolved."
The spokerson added that AIB is "committed to ensuring services for customers will be maintained at existing levels".
The bank recently bought back a tranche of its shares from the State, which currently holds a 25.5% stake.
