Dawson said Flavell's contribution would be welcome as technology was an important driver of performance at the port.
"His impressive experience in managing and leading large cross-functional teams, delivering complex digital transformations and compelling consumer experiences, will be invaluable for the company."
The port's automation programme was launched in 2016. The port and the council have refused to divulge its cost to date.
The port company, which operates New Zealand's main import gateway, has been under a cloud for poor productivity during the supply chain crunch, weak financial performance and low dividend returns to the council, and a grim track record for health and safety, which has included fatalities and serious injuries.
It is now implementing recommendations from a damning independent health and safety report ordered by the council last year.