rainbow-collar

[ reyn-boh-kol-er ]
/ ˈreɪnˌboʊˈkɒl ər /

adjective Informal.

being or of an employee who combines work or experience on the assembly line with more technical or administrative duties; having both blue-collar and white-collar duties or experience.
being, of, or for a factory worker supplanted by automated equipment and retrained for technical or administrative duties.