Machinest ?

[kujoestars]

Alternatively you can just buy a job boost potion for MCH and skip all that.

That too, but you're going to miss a lot of story since that also marks all job quests to 70 as complete.

To say nothing of the fact you're denied the chance to actually learn your job before having all those actions dumped on you. But if you don't care about either, yes, do that. XD