Chemist would be a wonderful job. It's one of the only classic healers left, and its place in the lore would be wonderful for a post 6.x Garlean society. We need a healer that isn't based on magic for once. A science based healer that has all kinds of potions and concoctions would be lovely.
It's weapon ideas are limitless. It could be gun based, it could be a some kind of a mini aether cannon, or really anything else you put your imagination to.