Some 60 jobs are to be cut from services company Fexco.
The positions at the firm's Cahersiveen facility in Co Kerry will be let go from the end of this month after a contract ended.
All affected staff have been informed.
"The contract's completion has been known for some time and has been communicated both internally and externally by the company," the company said in a statement
"The Cahersiveen facility continues to operate as an integral part of Fexco's operations and the company is committed to finding a replacement for the contract."
The company said the contract was originally due to end in August last year, but was extended to May.
Fexco employs 1,060 people in Ireland and more than 1,500 around the world.
It is headquartered in Killorglin, Co Kerry and also has offices in Cork and Dublin.