Chemist, or something relating to chemistry and alchemy that sounds fancy.
To unlock this job, you would need a master alchemist and.. well, I'm undecided on archer or a DoM, or something that's just not in the game yet. This wouldn't be something you just lead into.

Their main form of skills would be tossing flasks with a ground targeted AoE or a strong single target effect. Most attacks would require consumables you craft. Your throws have moderately long cool downs. If the class were supplemented with a DoM I'd say they'd utilize some sort of pseudo terrain effect with fire and water magic. If it were to be supplemented by a ranged physical class, they would have a ranged weapon and a few skills to use in between.