(Sharecast News) - Aviva chief financial officer Tom Stoddard will step down on June 30, the company said on Wednesday. It added that Jason Windsor, the chief financial officer of Aviva UK Insurance, would take on Stoddard's role on an interim basis. In April Aviva announced the departure of Andy Briggs, who ran the group's UK business under management changes introduced by new chief executive Maurice Tulloch.Stoddard will stay at Aviva until the end of the year as part of the handover process.