Administer Local Area Network/Wide Area Network, Active Directory, Citrix,Evaluate and/or recommend purchases of network hardware, peripheral equipment, and software; Investigate user problems, identify their source, determine possible solutions, test and implement solutions. Install, configure, and maintain switches, routers, and a wide range of network devices and systems Perform and/or oversee software installations and upgrades. Plan and implement network security, including building and maintaining firewalls, managing host security, file permissions, file system integrity, creating and maintaining user accountsTroubleshoot networks, systems, and applications to identify and correct malfunctions and resolve network issuesIdentify utilization patterns and their effect on operation/system availability and performance expectations. Anticipate communication and networking problems and implement preventive measures. Establish and perform maintenance programs following company and vendor standards. Ensure timely user notification of maintenance requirements and effects on system availability. Investigate, recommend and install enhancements and operating procedures that optimize network availability. Maintain confidentiality with regard to the information being processed, stored or accessed by the network. Document network problems and resolutions for future reference.