The phrase "in the employ of" refers to being employed or working for someone or some organization. There are several synonyms for this phrase, including "working for," "employed by," "on the staff of," "in the service of," "hired by," and "under contract with." All of these synonyms convey the same meaning of having a job or role within an organization or company. It is important to use these synonyms to vary your language and avoid repeating the same phrase multiple times in a document or conversation. Each of these synonyms provides a unique and appropriate way to describe working for someone else.