Danny: I'm CTO of The Glue, so I'm heading up our architecture, design, and engineering teams. We're building a next generation engagement platform for banks. My main focus is to make sure that it has all the functionality and features the banks are expecting. As part of it, there are some complex issues—that I will present in my talk—that need to be solved. I also focus on facilitating people to come up with pragmatic solutions for the problems we face using a variety of new technologies.

Danny: I'm going to pose challenges to the audience and try to give a small example for scalability. Typically, in a financial application, you know quite well how the load will evolve, with the exception of the things happening in the stock market. If it's about payments for instance you know that on the first day of the sales or on the weekend before Christmas there will be a high increase in electronic payments. So you can plan your scalability in advance, but you still must be able to do this scaling. So I'll be introducing a problem, with some small example and then say how we in our system we solve that.

Danny: The two messages I think they should take away with it is, firstly, if you have an application that must be stateful—especially with shared state—if you want use an event-driven way, there's quite some impact. The second thing is how to build a system such that people who are not developer rockstar's can still use it successfully.