Returning to an old job in a dream is traditionally read as revisiting a past version of yourself. It often appears when a current situation echoes old lessons, roles or unfinished feelings.
Does the traditional reading fit your dream, or did it mean something else to you?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.