Job skip question.

[DPZ2]

Brill thanks that means i have to level those classes from the bottom then i take it?

Actually, you can get Red Mage and Samurai, which start at level 50, and Machinist/Dark Knight/Astrologer, which start at level 30.

If you did not finish the level 60 storyline, you will need to get the Heavensward Story potion (which has both ARR level 50 and HW level 60 main story covered) as well, if you want to start working through Stormblood content.