Old-school coding tools/practices like Cobol, Ada, waterfall S/W development methods or projects that require extensive reliability/safety testing (NASA, car co

Old-school coding tools/practices like Cobol, Ada, waterfall S/W development methods or projects that require extensive reliability/safety testing (NASA, car companies, air traffic control, military platforms, etc). These are niche opportunities, but far enough out of the mainstream that folks who have such skills are retiring and increasingly rare.