If I were to work in your place to try to match people to jobs I should study some psychology and NLP trying to predict from what an user write and answers what is his mental state and how that mental state fits in the jobs.

Unfortunately hiring seems to be a very difficult problem and I can imagine that many key features are hidden and can't be obtained since the candidate can't be put into a controlled experiment that should allow us to obtain deep information that is usually hidden, perhaps a way to gain more information and wealth is to communicate with your users and clients in such a way that what is now hidden can be measured and new features can be obtained. That is you need to think about a model for your users, and that model must use features related to mental and human capabilities.