Häusler was previously a member of the Board of Managing Directors of Dresdner Bank AG, Frankfurt am Main, from 1996 to 2000. During this time, the financial market expert was responsible for the global markets business of the Dresdner Bank Group as well as its activities in the UK, North America and the Asia-Pacific region. At the end of 1997, he additionally took on the post of chairman of the investment banking division, Dresdner Kleinwort Benson, London.
Prior to that time, he worked for 18 years at the German Bundesbank and the Bank for International Settlements (BIS); in 1994, Häusler was appointed to the Bundesbank Directorate and the Central Bank Council. He has for many years been a member of the Group of Thirty, the advisory group for international economic and monetary issues based in Washington, D.C., as well as the Capital Markets Advisory Committee of the Federal Reserve Bank of New York. Until mid-2000, Häusler was a member of the Exchange Experts Commission, the Takeover Commission and chairman of the Federal Association of German Banks' committee on Germany as a financial center. He has also served on various executive exchange bodies, such as the Board of Directors and Supervisory Board of Eurex.