(ShareCast News) - Online trading company IG announced on Friday that it has appointed Paul Mainwaring as chief financial officer designate.The FTSE 250 firm said Mainwaring will start on Monday, replacing Mark Ward who will leave the company after a short handover, as previously announced.IG confirmed that Mainwaring will take up the role on a permanent basis and join the board of IG once regulatory approval is received."After an extremely thorough search process, we are very pleased to have secured someone of Paul's standing," said IG chairman Andy Green.Mainwaring qualified as a chartered accountant with Price Waterhouse, and was CFO at Tullett Prebon until recently."His knowledge of the financial services sector and experience in several public companies means he can hit the ground running and immediately add to the operational and strategic progress at IG," Green added.