24 Jobs You Didn’t Know the US Military Had

4. Cryogenics Equipment Operator (Marine Corps, Air Force, Navy)

No, they’re not keeping Chesty Puller’s body ready to thaw for the next big war. Cryogenics, though typically associated with keeping bodies on ice, refers to the production and behavior of materials at very low temperatures. The Marine Corps and other services use this technology to safely store oxygen for pilots’ tanks and nitrogen for planes’ tires.