how to combine profiles and content types in a view
With Content-type view, you can use the "relationship" feature in Views and have access to the profile fields of the author of a certain node that is listed in the view. The same is valid for the Filters of that view.

To do so, edit your view and expand the "Advanced" settings section on the right. Then click on Relationships -> Add and add the relationship "Content: Author".

Hope that helps.