Hillon will take on responsibility for Platform as part of his role as head of mortgages for the bank.
Colin Welby will head Platform’s sales and distribution team as part of his role as head of partnerships for the bank.
Lee Gladwell, director of sales and proposition at Platform, is currently heading Platform on an interim basis, following the departure of David Tweedy.
The lender says a further update will be provided on Gladwell’s role at the end of the transition period in August.
Last week, Mortgage Strategy reported that Tweedy had left the lender after 13 years.
He was put on secondment to another role within the bank in March and left following this.
The recent restructure comes as a result of a strategic review into the bank’s mortgage business where the decision was taken to move all the mortgage activity that the bank undertakes into one team.
The bank, however, says intermediary specialists will continue to manage the day-to-day running of the Platform business.
In February, the bank placed 80 staff in consultation at Platform and closed its office in Canary Wharf.
However it says the lender will continue to have a presence in London, but there will be an increased presence in Manchester where the bank’s headquarters is based.
The Platform mortgage processing centre remains unchanged and the lender says intermediaries can continue to expect the same levels of service from the Leek-based operation.
Hillon, says: “The Co-operative Bank is committed to lending to the intermediary mortgage market via Platform.
“We believe that by bringing our mortgage operations together that our customers will have access to increasingly competitive products and rates, with extremely high levels of service.
“Platform has always been a champion of intermediaries and professional advice and this will continue to be the case. We will continue to work closely with brokers to listen to their views and develop products that their customers want.”