Cofunds operations director Graham Jackson has left the platform after a year-and-a-half in the role.
Appointed in January 2014, Jackson was responsible for service delivery to all of the platform’s retail and institutional clients.
He replaced David Hobbs, who was made Cofunds chief executive in a reshuffle.
Jackson will return to Cofunds’ parent company Legal & General, where he has held a number of roles over 25 years, before leaving the group entirely before the end of the year.
He will be replaced by current risk and compliance director Paul Miller, who becomes interim head of operations, and change director Hugh May, who will be responsible for client asset rules.
A Cofunds spokesman says: “Graham has been spearheading our response to the review of the client assets regime, which is coming to an end for us.
“He felt that now the project has ended it is time to do something else after 25 years with L&G.”