Is a designing UIs according to branding/design guidelines actually design? – job position

Point me to where I can post this if this is not the right place. I am new here, take it easy pls

I received an offer from a leading engineering company and I thought it was UX, involved research, brainstorming and coming up with new ideas, in addition to UI design.

However, after talking with someone who works there, she mentioned that it is a UI design job where I would be redesigning new screens and interactions almost completely based on the design guidelines built by another team.

How can this be considered a 'design' job? I think creative output or problem-solving is seriously lacking here.

Any thoughts from more experienced people on this kind of work?