Bullock's immediate previous employer and role weren't identified in the announcement, but he worked at Morgan Stanley and UBS over the past 22 years. At UBS, at different times he served as global gead of investment bank operations, and global gead of investment bank operations and information technology. He has worked in both North America and Europe.

Based in London, Bullock also joins Credit Suisse's investment bank management committee. He reports to David Mathers, the investment bank's head of finance, and Romeo Lacher, head of operations for the private bank.