network administrator

person who is responsible for a local area network and its maintenance

Overview The terms network administrator, network specialist and network analyst designate job positions of engineers involved in computer networks, the people who carry out network administration.Network administrators are basically the network equivalent of system administrators: they maintain the hardware and software that comprises the network.This normally includes the deployment, configuration, maintenance and monitoring of active network gear: switches, routers, firewalls, etc. Network administration commonly includes activities such as network address  assignment, assignment of routing protocols and routing table configuration as well as configuration of authentication  and authorization –  directory services.
See more at Wikipedia.org...