When I was taking the CFA exams, work experience was something I didn't worry about. I didn't have to. The senior people at my firm were CFA charterholders, so the experience I was accumulating there was certainly relevant.
(I didn't actually end up staying that long - in fact I left soon after. Still got my work experience approved though, but that's another story.)
But if you're taking the CFA without any prior examples, how do you know for sure that your current role is considered relevant work experience?