System administrators are responsible for installing, configuring and maintaining systems hardware and software infrastructure. System Administrators have to participate in the technical research and development within the infrastructure of a system. These skilled workers also have to make sure that the software and hardware systems are in compliance with the organizational values and policies of the organization.
License Clerks are responsible for issuing licenses to applicants, after they present the notice of completing a licensure exam. License Clerks also have to enter license information in databases, to collect license fees and to help examiners in conducting licensure tests.
The people who work as warehouse clerks work in the back of a retail shop. They take care of the stock of merchandise. They have to ensure that the warehouse always has the items that are needed in the shop, and when those run out, the warehouse clerks order them from the providers.