5 years ago I had little training in Agile/Scrum (5 days) and I passed easily the SCRUM certification. I tried to implement SCRUM in a small IT startup (7 people team) for 5 years, and while I learned a lot, I don't consider that a real experience.
Now since one year, I've got a new job in a big company that claims to use Agile methodology or at least it's trying to transform to implement it.
My role it's not super clear, it's considered between traditional PM, proxy of Product Owner and Scrum Master. Anyway, it's like I have to define myself.