I've very recently introduced a friend to the joys of tabletop RPing, and he seems to have enjoyed it thus far. However, the type of character he would be interested in playing would be very much in the back line of combat, helping the party in either social environments and/or improving equipment/items. However, I'm also fairly new to Pathfinder myself, and I've looked through various variants of classes, but I can't think of a particular build that would really reflect that.
We're currently playing Curse of the Crimson Throne, and the party is lvl 5.