From the experts:
If you focus on the patience of the biblical Job, rather than his trials, the name becomes more usable. He was, after all, the Old Testament hero of the Book of Job, whose faith was severely tested by God but remained faithful. The name was was used by Puritans and Christian fundamentalists and can be found in the novels of Dickens, George Eliot and Robert Louis Stevenson..
A Berry recently named her son Job and wrote a Berry Juice blog explaining her choice. http://nameberry.com/blog/tag/baby-name-job