Human Resource professionals handle the hiring and staffing of businesses, they institute employee compensation and benefits, and they help define the work processes within a company.. Human resource managers are the intermediaries between top executives and the rest of the company. A human resources department oversees every process that involves people, and people are the most valuable resource in any company. The importance that companies place on human resources is reflected in the salaries offered. The median income for a human resources professional in 2015 was $104,400 per year. The job growth in this field is at 9% per year, which is a fast rate of growth.