People generally experience when their work matches their needs and interests, when working conditions and rewards (such as pay) are satisfactory, when they like their coworkers, and when they have positive relationships with supervisors.

People generally experience job satisfaction when their work matches their needs and interests, when working conditions and rewards (such as pay) are satisfactory, when they like their coworkers, and when they have positive relationships with supervisors.  It is one of the most researched variables in the area of workplace psychology because it is a measure of workers' contentedness with their job.