The Dunedin City Council's general manager of city services will take over as the acting chief executive.
Last month Dunedin's current chief executive Sue Bidrose announced she would depart the role on 17 July.
Sandy Graham will take over as acting chief executive until the recruitment process to find a new chief executive is completed.
The council said Graham first worked for the council in the mid-1980s as a member of a roading crew and has held a range of senior position since re-joining the organisation in 2007.
Some of her roles have included webmaster, group manager of corporate services, general manager of strategy and governance, group manager of corporate services, and she has been the general manager of city services since 2018.
Dr Bidrose is leaving the council to take over as the chief executive of Crown Research Institute AgResearch at its Lincoln campus near Christchurch. She has been in the council role for the last seven years.
Dr Bidrose said she was confident she was leaving the council in good health, guided by staff who cared deeply about the city and its ratepayers.