Vodafone will axe 11,000 jobs over the next three years as the new chief executive sets out her plans to “simplify” the telecoms giant.
The cuts equal more than a tenth of its workforce and will affect its Berkshire headquarters and other countries.
Margherita Della Valle, who is also Vodafone’s finance director, said its “performance has not been good enough”.
It also reported full-year sales rose only marginally and pre-tax profits dipped.
The company has two headquarters in Britain. Vodafone’s UK head office is based in Reading while its group office is in London’s Paddington.
Vodafone has already outlined plans to cut jobs in Germany and Italy.
Ms Della Valle, who was appointed as Vodafone’s new chief in January, said: “To consistently deliver, Vodafone must change.
“My priorities are customers, simplicity and growth. We will simplify our organisation, cutting out complexity to regain our competitiveness.”