Yes, absolutely. A friend of mine makes his living optimising COBOL programs on IBM mainframes. It turns out there's a pile of cash to made offering to take a l

Yes, absolutely. A friend of mine makes his living optimising COBOL programs on IBM mainframes. It turns out there's a pile of cash to made offering to take a look at people's code in return for a cut of the first year of savings when they're paying by the CPU-second. Nothing beats a mainframe for throughput & reliability and lots of the code is still COBOL. IIRC SocGen has a vast amount of code written in some awful monstrosity of an internal language that nobody else has used for decades, but the cost of changing everything over to something more modern is so prohibitive that they just keep on accreting over the existing codebase.