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If you've heard the need for Cobol programmers, often times it's for banks. When they digitized circa 1960 with the original computers, IBM mainframes, they operated using batch computing, which is why, even now, bank websites sometimes have hours of operation. Moving away from mainframes and modernizing that stack is, quite apparently, a lucrative business - if you don't mind working with bankers. There is an intentionally onerous amount of regulation in that industry that things operate under, most of it not relating to tech, but the tech does need to work under it.