
Bounty Hunter/Monster Hunter for cities towns and villages and whomever else can pay, since the Bahamut event (and him regaining some of his memory) there are always clients as places had to rebuild and needed protection. Prior to the event he was a skip tracer (bounty hunter) for hire along with his Miqo'te girlfriend/fiancée.
A good FFXIV lore site: http://ffxiv.gamerescape.com/wiki/Eorzea