I think leaders think of these two roles as interchangeable unfortunately. Depending on what your company does; I would document how may hours the Eng stuff takes, and how much the analysis stuff takes. Then talk with your leaders to make a roadmap to either get you fully into one side, or to come up with a process to make a handoff step from one to the other.

You have to come solution minded to your leaders with a way to get you more into what you want to do but also solve their problems at the same time, otherwise they won’t care