1987/88 General Studies International Center of Photography, New York
1989-1995, staff photographer daily newspaper "Der Bund", Bern.
1995-1998 freelance work
From 1998 staff photographer KEYSTONE newspicture agency, Zurich
From 2000 chief photographer KEYSTONE (2003-2005 additionally editor in chief)
From 2018 chief photographer KEYSTONE-SDA

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