Esto es lo que encontre para el 3rd job

3rd Job Advancement
Requirement: Level 40 or above

NPCs
<Arcanist> Pablo - Right Of Libra

Quests
Player must ensure that they've completed the required Hero Quests from Colin.

Truth by chance (1)
Defeat White Tooth (Hookah) in Bearded Whale Coast MM.

Truth by chance (2)
Defeat Alvida and destroy (7) Eliminate Bomb in Steven Trading Port MM (Hero Quest Mode).

Doctor Who?
Talk to Patrol Guard <Sijin>.

Port of the Winds - Stench
Investigate Nautilus Port.

Decomposing Monster Corpses
Hunt (20) Rotting Monster Corpse at Steven Trading Port.

Slay Farrell!
Defeat Dr. Farrell.

Dragon Expedition!
Talk to Soveregin <Steven Jr.>.

1) Farrell's Diary
Defeat Sambaba in Valid Raeth (Hero Quest Mode) MM.

2) Fight to the death against Drakes!
Defeat Lavalon.

3) To gain stronger power
Obtain 200+ combos at Smoldering Swamp.

4) You've been promoted to 3rd job
Talk to Pablo.