[8] On graduation in 1979, she joined the Public Service of Canada in Ottawa as an immigration adjudicator, later taking positions in the Department of Labour and the Privy Council Office.
In 2000 she joined the Canadian Imperial Bank of Commerce as senior vice president and chief administrative officer, retail products.
[11] Replacing the departed Adam Crozier from early July, the first non-Briton and first woman to hold the post, she oversaw the privatisation of Britain's postal service.
It was an almost impossible task to reconcile demands from all the competing stakeholders – and sell a declining business such as post and parcel delivery to the stock market – but she pulled it off.
"[17] In September 2020, it was announced that Greene had been appointed by the Premier of Newfoundland and Labrador, Andrew Furey, as chair of the provincial government's newly established "Economic Recovery Team".