this type of employee is someone who does work for an organization on a temporary or part-time basis
Temporary work Temporary work or temporary employment refers to an employment situation where the working arrangement is limited to a certain period of time based on the needs of the employing organization. Temporary employees are sometimes called "contractual", "seasonal", "interim", "casual staff", "outsourcing", "freelance"; or the word may be shortened to "temps". In some instances, temporary, highly skilled professionals (particularly in the white-collar worker fields, such as law, engineering, and accounting) refer to themselves as consultants.
Type A and Type B personality theory The hypothesis describes Type A individuals as outgoing, ambitious, rigidly organized, highly status-conscious, sensitive, impatient, anxious, proactive, and concerned with time management. People with Type A personalities are often high-achieving "workaholics". They push themselves with deadlines, and hate both delays and ambivalence.[7] People with Type A personalities experience more job-related stress and less job satisfaction.[8]