Freddie Mac, the troubled US government-sponsored mortgage refinancing agency, has hired Catherine Dondzila to oversee its investments and capital markets accounting, in the latest effort to restore confidence in its derivatives reporting.

Dondzila joins Freddie Mac from Bear Stearns where she controlled fixed income, derivative, proprietary sales and trading activities. She previously worked in the audit, finance and control departments of Credit Suisse First Boston and Deloitte.