In fact, the real meaning of the medical device registration specialist, is a very professional work, should be familiar with the relevant laws and regulations and audit requirements, should be able to control the company's quality system operation and product development process, note that I said "control", what is the level? So you go to apply for the company has this sense? You've got the ability to do this yourself.
The FDA has training for registrars, but they can only learn a little bit.
Now to answer your question, if most companies are able to know what is the real meaning of medical device registration specialist, then the employment and development prospects of this profession is very good, if not.