Here is a hint about your future job: Banks are not spending on core systems.
Banks spend money on IT where they expect to get the biggest return. This article plows thrugh the 6 main areas where banks will spend their IT dollars in 2012.
If you want a job or promotion in a bank, make yourself irresistible because you are an expert at Regulatory compliance or customer experience/channel optimization. Those are two areas that can apply to other places besides banks.