Install and support LANs, WANs, network segments, Internet, and intranet systems. Install and maintain network hardware and software. Analyze and isolate network issues. Monitor networks to ensure security and availability to specific users. Evaluate and modify system's performance. Identify user needs. Determine network and system requirements. Maintain integrity of the network, server deployment, and security. Ensure network connectivity throughout a company's LAN/WAN infrastructure is on par with technical considerations. Design and deploy network infrastructure. Administer servers, desktop computers, printers, routers, switches, firewalls, phones, personal digital assistants, smartphones, software deployment, security updates and patches.