 Perform systems administration of desktop and server systems connected to local and wide area networks Provide desktop system management involving account monitoring, security, and Operating System (OS) installation  Apply security patches, IAVAs, STIGS, and updates for all systems Conduct manual checks, GUI-based, command line tools to troubleshoot and remediate basic to complicated systems hardware, software, and configuration issues Administer Active Directory, Domain Controller and Exchange services Collect and review store server log files to identify and remediate system issues Manage daily IT operations, including storage, desktop, network and server administration, VTC and VoIP Phone operations and hardware support Configure VTCs, Laptops, and VoIP Phones to be placed on the Army network Review security logs provided by Cybersecurity and apply troubleshooting techniques on devices to remediate security issue

 Maintained over $900,000 of high sensitive equipment in service by troubleshooting, installing updates, and placing orders for defective equipment Managed the communications department without supervision by providing customer service, support, and training to 60 personnel which resulted in the sections overall success Created training manuals, reports, trackers in order to maintain all employees updated on policies and procedures Conducted modifications and diagnosed Dell and HP Laptops and programed government phones and software Provided IT support to multiple ROK drills

 Performed duties on Command Post Node (CPN) and Battalion Network Operations Managed daily operations of a 150+ node, multi-network, multi-vendor client base Identified and recommended needed and optimal infrastructure improvements Led the implementation of ISE 802.1x Performed duties with products such as CUCM, UCCX, CUC, and Jabber Conducted circuit, trunk, or link engineering to establish or modify services Modified and established CUCM Call manager trunks and devices Developed documentation to support planning/analysis of telecommunications and IT networks Provided implementation and installation of encryption devices such as Taclanes (KG175A and KG175D), and KIV-7M

 Performed activities such as configuring and monitoring hardware and software for systems operation, processing and control of data flow Provided customer service to assist in operation, restoral, and configuration of functionally operated systems for 500+ customers Demonstrated exemplary customer service, patience and support of customer operations Corrected networking connectivity issues in routing and switching using layered model approach Regularly reported status on Voice over IP (VOIP) projects, issues, and developments Installed, configured, tested and deployed Cisco Routers and Cisco Switches running as Layer 3 and Layer 2 switches Designed, configured, implemented and tested LAN, WAN, Ethernet and IP routing protocols such as Static Routing, NAT, OSPF and EIGRP. Assisted with the implementation of black core fiber to our network through the pacific and peninsula of Korea Implemented, configured, installed and maintained all network security and monitored measures for 140 nodes of NIPR, SIPR and CENTRIX-K (Cisco ASA firewall, McAfee Anti-Virus, IPS, remote management)