Information Technology
This is the backbone of banking. Client records, company trade records, pricing, transaction processing, security, etc… The efficient management of risk of a bank is tightly correlated with the investment in IT. From support to systems development, IT is pervasive in the banking environment. Banks have lots of money and spend lots of money in IT.
An IT manager’s dream! You get to test and implement all the new technologies, because bank managers are often convinced that having an edge in IT gives them an edge in the business (which is not necessarily true). In any case, as an IT engineer in a bank, you will get a lot of exposure, and you’ll make friends with all the traders, because they always want something from you (the latest Blackberry, or a new set of Pentium chips in their machine…)