About the Part Time Jobs...

I'm not sure about the bonus, but it definitely determines the reward. If I do Mining on a character with low level mining, I get opal ores. If I do it on a character with high level mining, I get high level ores (last one was dark crystal).

really? When I do on my max I get anything from lvl 1~10. though I haven't tried on a low lvl mining character though.