For example, if the main service object in the future is researchers in materials science, then it is best for candidates to have a professional background in materials science.
Career planning: becoming a subject service expert. (This position will not make much progress in the post, and it can only be positioned as an "expert")
It can be integrated into the research of front-line researchers and become an indispensable information support for researchers to declare projects, track industry development and identify achievements.
I know a person who is engaged in this position. When a professor wants to declare a project, he can fill out all the declaration forms independently after communicating with him, and there is almost no failure.