Norfolk CC’s most senior officer is to move to become vice-chancellor of the University of London.
Wendy Thomson, managing director of the county since 2014, will start in her new role in July.
Ms Thomson said: “I have enjoyed working for Norfolk CC and I am proud to be the county’s first woman chief executive.
“Together we have achieved a great deal over the last four years – children’s services improvements, tackling loneliness, promoting the independence of vulnerable adults and managing the challenging financial context.
“We have a talented leadership and staff team who can be relied on to take the council forward.”
Council leader Andrew Proctor (Con) said of Ms Thomson: “She has attracted a highly able top team of national standing and led many improvements in our services such as infrastructure as well as ensuring we continue to grow our commercial services.
“She has set a firm base for the council to continue to improve. I wish her every success at the University of London.”
Ms Thomson’s career has seen her work for the Greater London Council, Islington LBC and as chief executive of both the charity Turning Point and Newham LBC.
She also served as director of local government inspection at the Audit Commission, as an advisor to prime minister Tony Blair and moved back to her native Montreal, Canada, for a spell heading McGill University’s School of Social Work.