In the world of tech, there’s a school of thought that believes every application is a piece of art—unique and beautiful in its own right. UBS has spent the last three years pivoting away from this belief system as the bank has put more workloads into the cloud and beefed up its security guidelines.

Paul McEwen, global head of technology services at UBS, has been in banking for more than three decades, and for much of that time, developers have built their applications in closed-off silos