$14.6 billion biotech company Amgen has appointed Thomas Dittrich to serve as vice president of finance and chief accounting officer. His appointment follows the company's previously announced move of Michael Kelly into the role of acting chief financial officer.

Dittrich has served as Amgen's vice president, International Finance, in Zug, Switzerland since joining the company in April 2006. Between 1998 and 2006, Dittrich progressed through various positions of increasing responsibility at computer technology company Dell.