From Longman Dictionary of Contemporary Englishcareer soldier/teacher etccareer soldier/teacher etcWORK HARDsomeone who intends to be a soldier, teacher etc for most of their life, not just for a particular period of time a career diplomat → career
Examples from the Corpus
career soldier/teacher etc• A career soldier, he had died leading his men into battle at Spion Kop during the Boer War.• For career soldiers like Jack it was a depressing time.• They liaise with secondary school careers teachers, and also with the employers in an area.• A Kurator is similar to a specialist careers teacher with additional contributions to make after school. 