When a nuclear firestorm engulfed the world in 2029, those who caused it, the politicians, military officials, along with some scientists and engineers, retreated deep into a large, underground bunker. Now they have to stay.
Due to an error with their radiation-sensors, they believe nuclear winter completely sterilized the entire region they were in, and do remain in their bunker. For 230 years. By that point, successive generations of bunker dwellers are born, to continue on life underground.
Here’s my question: these people will be almost entirely self-contained (their oxygen coming from ventilators, water recycled, and etc) but what jobs/tasks will these bunker dwellers need to perform to keep their subterranean civilization afloat? What’s jobs/tasks would be most vital to maintaining it?