mojoPortal has most of what people need for a business web site, it was never intended to scratch every possible itch.
If user resumes was an important feature to me I would build a custom feature that plugs into mojoPortal not try to use the existing features for it.
It would be easy to build a feature that detects the current user and retrieve his data from the database so he can only see and edit his own resume and perhaps admins could search and review/edit any resume, without making separate cms pages for each user.
The point is specialized needs generally require custom development, and a resume system is a specialized need. It is not soemthing I would expect in the box of a CMS.