Citigroup marries business and technology

The exotic world of credit derivatives needs equally exotic technology to keep up with growing demand. Clive Davidson speaks to Citigroup’s Daniel Rosengarten

The extraordinary growth in the credit market over the past two years, and the changes that have taken place within it, caught many people by surprise. But that was not a luxury afforded to the technologists, who had to start building systems while the market was small and with relatively few products. They had to develop systems that were flexible enough to anticipate the sudden rise in volumes and creation of ever more exotic structures. The fact they have been able to do that has influenced