Credit Suisse's chief financial officer David Mathers will take on the additional role of chief information officer.

The bank's current CIO, Karl Landert, will leave the executive board effective Monday and will work closely with Mathers to manage the transition, Credit Suisse said Monday in a news release. Landert joined Credit Suisse in 2001 and has served as CIO since 2008.

Mathers will assume responsibility for the IT organization in addition to his current role.

"The integration of our finance, operations and IT functions will support the evolution of the bank's strategy, while reinforcing the importance of sustaining overall cost efficiency and organizational flexibility and of developing a single operating platform for the bank," Brady W. Dougan, Credit Suisse's chief executive, said in a news release.