Tesco is cut 4,500 staff as opening hours are reduced at more than 100 smaller supermarkets.
The supermarket chain announced the cuts just a few months after separate plans to cut 9,000 jobs earlier this year.
Changes will be made to smaller Metro supermarkets to make them operate more as convenience stores.
And opening hours will be cut at 137 Tesco Express outlets with further 'streamlining' planed for larger supermarkets.
The changes were announced today by Tesco UK chief executive Jason Tarry.
He said: “In a challenging, evolving retail environment, with increasing cost pressures, we have to continue to review the way we run our stores to ensure we reflect the way our customers are shopping and do so in the most efficient way.
"We do not take any decision which impacts colleagues lightly, but have to make sure we remain relevant for customers and operate a sustainable business now and in the future.”
Tesco employs around 300,000 people in the UK and announced 9,000 jobs were at risk in January this year under changes to fresh food counters.
Tesco said the latest move was part of "operational changes to the way we run our Metro stores in the UK".
The supermarket added that the new format would help serve shoppers better as well as running the business in a more sustainable way, the Mirror reports.
"The changes in our Metro stores will be focused on better tailoring them to how our customers shop," Tesco said in a statement.
"The Metro format was originally designed for larger, weekly shops, but today nearly 70% of customers use them as convenience stores, buying food for that day."
The changes include:
- faster and simpler ways of filling shelves, with fewer products stored in back rooms and more stock going straight to the shop floor
- staff working more flexibly to improve customer service at the busiest times of the day and in the right areas of the store
- a leaner management structure, as we simplify our ways of working
More changes are happening at 134 Tesco Express stores, that will mean a reduction in opening hours at the start and end of the day as well as simplifying stock routines.
The larger stores don't escape entirely, with "localised changes" to help with "streamlining operational routines" - such as moving stock around the store and filling shelves.
"Our priority now is to support affected colleagues, helping find alternative roles within Tesco for as many as possible," Tesco said.
