Well I hate to disappoint then but Yoshi has made an official announcement that he doesn't want a pet job to be focused on the pet. His reasoning was that it would be too complicated for the playerbase's majority and it would be too risky to put so much power into the pet since if it died the SMN's DPS would take a huge hit and then they wouldn't get invited to raids. There was also something about balancing issues but I don't remember the spedfics.

So don't hold your breath on getting a pet focused pet job like FFXI's SMN.