Do Academic Titles Matter in CV?
I suspect that this is strongly culturally dependent.  In the American tradition of egalitarianism, my C.V. has never had any titles in it at all, following the example I saw amongst my older peers and professor.  On the other hand, I suspect that a German C.V. might be much more particular, since academic titles are considered important enough to be protected by law there.

My suggestion to you, then, would be to look at the CVs of people with a position similar to that you aim to obtain, and to adopt the style that they have used.