Asda has announced potential redundancies for just under 2,500 staff over five separate areas, including fashion arm George.
Redundancies could happen from February 2019, across petrol, hosting, bakery, George and back office departments.
Asda has blamed a “competitive retail market” for the upcoming staff restructure.
A spokesman for the supermarket said: “In a competitive retail market, where customers rightly expect great value and ease of service, we must always look at how we can work more quickly and efficiently for them – and inevitably, that means we need to consider changing the roles we need our colleagues to do or the hours needed in particular parts of our stores.”
He added: “We believe the proposed changes we are consulting on would allow us to do a better job for our customers. We also recognise that discussions about potential change aren’t easy. If the decision is taken to implement the proposed changes we would work with our colleagues to look at the potential impact of these proposals on them.”
In April Sainsbury’s agreed terms with Asda owner Walmart to buy a majority stake in its supermarket rival, to create one of the UK’s largest grocery and clothing groups with a combined revenue of £51bn.