He joined last June to look at the opportunities for taking the building firm into the growing infrastructure market.
A spokesperson for the Wates Group, said: “Following the appointment of Terry O’Connor as managing director of infrastructure in August this year, the Wates Group can confirm that Terry will be leaving Wates with effect from January.
“Terry’s appointment formed part of Wates’ wider strategy to identify opportunities for growth, one of which is the increasing investment in roads and rail.
“Wates’ strategic review of opportunities in new and adjacent markets is very much ongoing.”
He was previously operations director at Alfred McAlpine Civil Engineering and operations manager at Miller Civil Engineering.