Bombardier is set to cut almost 400 jobs from its Belfast operations.
The aerospace giant will shed 300 temporary and contract staff, while up to 90 permanent workers face redundancy.
Job cuts were looming earlier this year as part of a global restructuring of the Canadian firm - which could see 1,800 positions shed worldwide.
The firm currently employs around 6,000 people in Belfast. That makes it Northern Ireland's largest manufacturing company.