World is hiring, I know more than a few people there. However, they have a 36 month/xxx $ amount training contact they force you to sign after you get the MD-11 type.
Everyone has their own opinion of the legality of training contracts; I hear about 50/50 generally. But I know people that have left World prior to completion of the training contract, and World actually went after them with lawyers to get xxx dollars back, prorated based on how long the pilot was there.
Whether World was successful in getting any of the money back, or when the pilot refused to send in a check, whether they were successful in putting some back marks on his credit rating, I do not know.