Matching potential employees to jobs on the marketplace is more than a matter of just numbers, which is why there are 3 million job openings in the U.S. and more more than 14 million people out of work. CNN Money put together a list of nine hard-to-fill jobs to illustrate just how hard it is to match skills with job vacancies.

Advanced Manufacturing Engineers 

Requires: Bachelors degree + 5 years experience

GE is challenged with the task of hiring Advanced Manufacturing Engineers in Greensville, SC. It takes them over 6 months to fill those positions because of the specific criteria involved.