British Telecom is cutting 10,000 jobs, mainly among agency workers and sub-contractors in the UK.
The company employs around 3,000 staff on the island of Ireland.
A statement from the company's Irish division said it would continue to increase staff in some areas, 'while reducing numbers in others through natural attrition'.
BT also said its Irish profits in the six months to the end of September were 13.5% higher than a year earlier.
The company has already cut 4,000 jobs, leaving a further 6,000 to go between now and March.
The cuts, part of an on-going efficiency programme, will mainly affect BT's indirect labour force including agency workers, contractors and off-shore staff.
BT said it was reducing its dependence on consultants and contractors, cutting those jobs by 12% whereas direct staff numbers will come down by 4%.
The telecoms giant, which has a global workforce of 160,000, said it will achieve the reduction in its direct staff largely through natural turnover, pointing out that reductions in previous years have been through voluntary schemes.
Around 90,000 direct jobs are based in the UK whereas contractors and agency workers are spread across other parts of the world.
