Freelancer
What you start off as. You can yield any weapon and also make use of White/Black Magic although the overall effectiveness is very low.
Warrior
With a high amount of HP and defence, the Warrior has a skill to boost his/her attack temporary at the expense of lower defence. The Warrior cant use any magic.
Thief
As some of you may have guessed, the Thief can Steal items from the enemy and has the ability to Flee allowing you to have a higher chance of escaping from battles.
Evoker
Summoning random creatures to fight, each of them are either of the light or dark type.
Ranger
Shooting from a distance, the Ranger can shoot multiple shots in one smooth movement. Barrage allows you to hit an enemy a random number of times in one shot.
Martial Artist
A professional in close range combat who has a higher attack power than the Monk. After using his Save ability, his normal attacks inflict more damage than usual. The Save ability can be stacked but, overusing it will cause damage to yourself.
Dark Knight
Wears dark armour and makes use of dark, negative energy. Just like the Knight, the Dark Knight has high attack power and his strength really shows when equipped with a Dark Sword. Using Darkness he can attack multiple enemies at the expense of his own HP.
Devout
A job that can make use of the strongest White Magic spells. With a large amount of MP, the Devout can cast high level White Magic many times. Cute kitty ears, no?
Monk
Skilled in close combat arts, the Monk can attack at high speed with bare hands. He cant make use of magic and the equipment he can make use of is limited. With Counter, the Monk can counterattack the enemy when hit by physical attacks.
White Mage
Making use of healing type magic mainly, the White Mage can heal party members without wasting items. The White Mage has low attack power and low defence. Just like the Black Mage, will take a lot of damage when hit.
Black Mage
Skilled in Black Magic, the Black Mage can cast spells that strike all enemies at once. He has low HP and has the lowest defence out of all the jobs.
Red Mage
With skills that are in between the Black Mage and White Mage, the Red Mage has average attack power and can yield several types of weapons. The Red Mage cant make use of high level White/Black Magic spells.
Bard
Fights enemies by playing a harp. Making use of the Sing ability, the Bard has many songs that provide various effects. He acts as a support for the party and can also attack the enemy. The effects of the songs change depending on the harp equipped.
Scholar
Holding a book in one hand, the Scholar is skilled highly in analysis. With his Check ability, he can find various stats about the enemy and their weak points. Apart from being able to make use of White Magic, being able to use items much more effectively than any other jobs is his strong point.
Summoner
Having more MP than the Evoker, the Summoner can summons many creatures that are either of the dark or light side. Each of them have different powerful attacks that can attack all enemies.
Sage
The Sage can use all summons, and Black/White magic. Although she has a fairly high amount of MP, she is still inferior to the Magus and Devout.
Knight
With a higher defence than the Warrior, the Knight can protect party members using the Guard ability, taking any damage inflicted upon his comrades. Can also make use of White Magic to heal himself and members.
Dragoon
A spear user who has an advantage against airborne enemies. With his Jump ability, he can jump high into the air and after one turn, he fall down charging into his enemy. During the turn where he jumps into the air, he is invulnerable.
Geomancer
Attacks the enemy by ringing a bell. Using the ability Terrain, he can be supported by the battleground he fights on and can make use of various random, nature based attacks.
Viking
A power fighter who can yield axes and hammers. Using Provoke, he can make enemies turn their attacks on him. Amongst the warrior type jobs, he develops the slowest.
Magus
As opposed to the Devout, the Magus is a master of Black Magic. He has a large amount of MP allowing him to make use of high level Black Magic spells many times. The Magus can also equip weapons of the hammer, dagger type variety.
Ninja
Out of all the jobs, the Ninja has the fastest attacks and has the highest average skill. When equipped with items such as Shurikens, the Ninja can make use of the Throw ability to inflict damage. This however, means he/she will lose his/her equipped weapon!