When referring to the completion of a task, there are many ways to phrase it without using the phrase "does a job." For example, you could say "accomplishes a task," "fulfills a responsibility," "completes a duty," "performs a function," or "executes a role." Each of these phrases carries a slightly different connotation, which can be useful in providing specific details about the nature of the job being done. Additionally, using synonyms can help avoid repetition in writing and create a more dynamic and varied narrative. When searching for the right word or phrase to use, it's important to consider the context and intended meaning of the message being conveyed.