Crisp maker Tayto is spending nearly £6 million in additional wages and salaries over the next five years as part of an investment in its plant in Co Armagh.
The Tandragee company is the third largest crisp and snack manufacturer in the UK. It already employs 390 staff at Tandragee Castle, and a further 900 at its other UK sites.
Invest Northern Ireland has offered the company £232,000 support.
Tayto chief executive Paul Allen said: "These new positions have been created as part of our long-term strategy to increase the capacity of our facilities here in Northern Ireland to meet increased demand, both nationally and internationally.
"While we are now very much a national company, our home is very definitely in County Armagh."
The new jobs will contribute around £1.1 million a year in salaries to the local economy.
Enterprise Minister Arlene Foster said the investment reflected the company's ongoing commitment to the local area.
"For over 50 years, Tayto has been providing employment in Northern Ireland and in the past six years the company has experienced significant growth through acquisition," she said.
"Invest NI is supporting the investment through its Jobs Fund, which is helping companies create jobs and get people back into work. By 2014, Invest NI aims to have supported the creation of 4,000 jobs through this measure, which is part of its Boosting Business initiative."
Tayto also has plants in Scunthorpe, Corby, Wolverhampton and Bolton. The firm owns major brands including Real, Fusion, Tayto, Golden Wonder, Rough Cuts and Mr Porky.