Bakkavor is looking to expand the workforce at its Tilmanstone Salads food plant in Kent with more than 150 new jobs.
The news comes following a £3m investment in the facility that provides salads and leafy snacks to every Marks & Spencer store in Europe.
The 24/7 business, formerly known as Kent Salads, is a major employer in the Dover area with more than 870 people working at the site.
During peak production in the summer, the company can produce up to 300,000 leafy salad bags, convenience salads and prepared vegetable dishes each day. At the busiest times, that figure can reach two million a week.
Tilmanstone Salads aims to use local produce where it can, with the largest supplier being Intercrop, based at Betteshanger.