How Did You Find Code That I Was Written Before I Was Born?

The API that was used on the web services side because we were talking 15 years back, it wasn't JSON, it was XML and turns out that the code that parsed the XML was very inefficient. So basically what they did when they implemented it, they would pass that XML down into a component, it would parse that XML to get the data that it needed and then would throw that parsed DOM away. The same XML got parsing multiple times each time just to extract a particular value. That kind of a pattern is something that I've encountered unfortunately many times throughout my career.