Just be careful about RPing as an actual member of a Job that is at all likely to be added someday. Whatever you make up about it will inevitably be contradicted in the lore and mechanics of the real Job when it's added.
That's not to say 'don't do it', just try to downplay the specifics if you want to avoid headaches and heartache.
That's not to say 'don't do it', just try to downplay the specifics if you want to avoid headaches and heartache.