The Manchester-based Co-operative Group is to create 1,700 new management jobs in its food stores over the next few months.
The company said buying stores from other retailers and co-operative societies meant management structures differ widely.
The new jobs are in addition to Co-operative Food's expansion plans in the next three years.
This expanded network of stores will create around 7,000 jobs.
Chief executive Tim Hurrell said: "We're adopting a consistent approach that is appropriate to the size of each store and will help us meet our goal of delivering excellent service.
"The net effect is a gain of 1,700 jobs and these jobs will be at management level in stores. Where we fill these roles internally it will create opportunities at all levels.
Despite the extra jobs, some stores will reduce the number of management positions, the company added.