Seeing stories like this makes me wonder if we'll ever see a company actually go bust based purely on the instability of its decades-old, duct-taped architecture. I have a relative who works for a large credit card processor running on mainframe systems and I hear over and over again that they're all retiring and unable to fill the newly opened roles. This problem is compounded by the fact that their offshore contrac…
The way the survivorship bias works out, this is generally a strength, not a weakness.
You want to get good money, you learn how stuff works under the hood and get familiar with your predecessor architectures, emulate them if you need to.