The phrase "core responsibilities" refers to the main or most important tasks or duties that someone is expected to fulfill in their role or position. Full definition
This is one of core responsibilities of a real estate listing agent. (homebuyinginstitute.com)
Other core responsibilities include completion of HVAC - related drawings, preparation of project estimates, and overseeing the installation of projects. (resumesamplesdownload.in)
Project manager resume writing that focuses on core responsibilities and key accomplishments can be of significant value and help separate you from the crowd. (actionresume.com)