Anushka Asthana and Heather Stewart are to share the role of political editor at The Guardian, taking over from Patrick Wintour who is becoming diplomatic editor.
Asthana joins from Sky News, where she was a senior political correspondent. She was previously chief political correspondent of The Times.
Stewart is currently the Observer’s economics editor and was previously its business editor.
Guardian editor Katharine Viner said: "I am delighted that we have broken the mould by appointing two such accomplished journalists to share the role of Guardian political editor. It is surely one of the best jobs in British journalism and I can't wait to see the impact they have.”
Asthana said: " This is a fantastic opportunity to show that a job share at this level can work – and I hope it is a step towards more women and more working parents considering political journalism."
They will start their new roles early in 2016.