Marc Devine, who joined Alliance as a financial controller before serving as CFO for seven years, will end his term on 30 August, to be replaced by Andrew Evans.
The apparent boardroom coup comes weeks after Lim Kim Hai stepped back from his role and long-serving leaders John Sharp and chief operating officer Neville Howell were promoted.
Marc Devine, who joined Alliance as a financial controller before serving as CFO for seven years, will end his term on 30 August, to be replaced by Andrew Evans.