I think the best way to get familiar with electric vehicle technology is to pass a short course or even a university course in this regard. The reason is that the lessons in the university are currently being updated by electric vehicle knowledge and you could learn everything you want about the matter. Finally graduating from the related course would increase the chances of being recruited by automotive companies.
I have worked for about 6 months on Hybrid electric vehicle as I have participated in HYBRID ELECTRIC VEHICLES COMPETITION held by ISIE and HERO ELECTRIC. I have certificate of final round. So this will help me in getting a job or not.