The phrase "multiple hats" means that a person has many different roles or responsibilities. It suggests that someone is multitasking or fulfilling various job or life duties simultaneously. Full definition
She now wears multiple hats in the beauty industry and aims to inspire women all over world along the way. (mindbodygreen.com)
The cluttered form of data availability puts entrepreneurs off given the fact that they wear multiple hats in their startups and generally, are occupied with many commitments. (dazeinfo.com)
Now, more than ever before, employees are wearing multiple hats within their organizations. (toprankblog.com)