No experience is needed to work as a postal clerk, but those with prior work experience will increase their chances of landing a job, getting promoted, and possibly earning higher pay.
Because they must memorize many postal regulations, operational rules, and distribution schemes, people in these positions must have a good memory. They must also be able to read rapidly and accurately, as well as possess good hand-eye coordination. Physical stamina is required for both window and distribution clerks and for service agents. Window clerks must stand for many hours at a time, while distribution clerks and service agents must do a great deal of reaching, lifting, walking, bending, and handling packages and heavy sacks of mail.
Postal clerks need to have an even temperament and a pleasant disposition. They frequently work under pressure to meet time and schedule deadlines, and their work is often performed with others in close physical spaces. Window clerks must have a neat appearance and a pleasant, congenial manner and must be able to deal with all types of people because they are in constant contact with the public.