I could tell you all the things I’ve done, but…
I’d rather say that my name is Frank and I am an English teacher with many years of experience, and part of my job is to sit down and listen to people speak English and give them a mark for a recognized exam. I also teach other people to do what I do, so you can say that I am also a trainer (or coach). If you wish to know exactly what I do, you should better check my LinkedIn profile.
What You Say in English! 