Industrial Organizational Psychologist: Not the most glamorous job title, but in numbers, it is the mack daddy of our list. With a project job growth rate of 48%, this career is one that will have no shortage of job openings, and if you’re into organizational psychology, then you’re in luck. Industrial organizational psychologists are men and women who help large businesses, corporations, and other bodies plan policy, streamline procedures, and help improve workplace productivity. Technically, it involves the study of human behavior in the workplace, so if things like how Enron managed to crash and burn so badly fascinate you, this is the job for you.