Work on the GSM-O contract for DISA CONUS supporting several Voice over IP programs.Responsible for administration of networking equipment (routers, switches, voice session border controllers) and application servers (Cisco Call Managers).

Upgraded Microsoft Office SharePoint Server 2007 to SharePoint 2010.Worked as the Configuration Management lead for the IGC program. Managed check-ins and check-outs on a ClearCase system.Responsible for integration of new releases into all environments (development, test, and multiple production environments) of a complex integration of COTS software.

Tier 3 support for the Solaris and Storage team for SDDC on the Enterprise Support Services contract- Assisted team in administering 30 physical Solaris servers and 20 Solaris zones- Assisted in NetApp SAN administration (NetApp 2020, 3210, 3240, and 6080)- Improved existing Solaris build procedure using Jumpstart and finish scripts to automate manual build stepsVeritas Cluster Server Administrator- Built several clusters including two containing five nodes each- Built clusters for application servers and database servers- Application clusters hosted Solaris zones that can be easily migrated to other physical servers- Installed Veritas Clustered File System support on application clusters (SFCFS/HA)Worked with Oracle support to resolve hardware issues with the following platforms: Sun V490, T2000, M4000, M5000, and M9000.Network team support- Assisted in administering Cisco switches (2960, 3750, 4507)- Assisted in administering F5 Big-IP load balancers (6900, 8900)Hardened servers according to DISA STIG requirementsResolved SRR and Retina scan findings on Solaris serversProvided analysis of USCYBERCOM bulletins to leadershipWrote silent installation script for CommVault UNIX client

Configuration ManagementResponsible for configuration management team for the IGC programManages check-ins and check-outs on a ClearCase systemInstalls software into various environments following the software development life-cycle (development, test, stage, production)Wrote monitoring application in Python to securely connect to servers and query status of multiple application servers (originally wrote application in Perl but had to convert to Python due to better threading support)Wrote monitoring scripts for Informatica, Business Objects, Oracle, and WebLogic serversResearch & Development Lab ManagerBuilt two research and development labs with a total of ten different environments- Built lab all the way from hardware specification and purchasing through implementation- Designed network layout and virtualization schemeBuilt virtual machines using VMware ESXi servers- Evaluated Citrix XenServer but chose VMware due to perceived stability benefitsResponsible for administration of systems for multiple research and development projectsProvide surge support to R&D projects as neededDesigned the network for the two labsResponsible for all External Connection Requests (ECR) and modificationsSystems Administrator, SeniorSystems administration technical lead for the USTRANSCOM Global Transportation Network Data WarehouseAdministered Solaris 10 servers(Sun V490/V890) running Sun Cluster 3.2Responsible for maintaining network switches and routersResponsible for daily operations of four different customer environmentsInstalled two node Oracle Real Application Cluster (RAC) 10gR2Installed Informatica PowerCenter software for ETL processingInstalled NetBackup 6.0 backup server and configured appropriate policiesManaged backups on Solaris serversInstalled Citrix XenApp serverInstalled and administered Microsoft SharePoint server

Lead Systems AdministratorBuilt and administered multiple Apache web serversBuilt and administered multiple MySQL database serverResponsible for building and hardening all Information Protection systems (MS Windows, FreeBSD, Solaris 8, 9, 10, Gentoo Linux, OpenWRT )Built a proactive event monitoring system (Nagios)Responsible for system patch managementEngineered a new web proxy solution for USTRANSCOM using Blue Coat Web Proxy ServersProxy log review and incident response to inappropriate web usageEngineered a solution to use Linksys wireless routers as a low cost wireless detection systemWorked with the USTRANSCOM GCCC to coordinate all service interruptionsResponsible for IAVA compliance on all USTRANSCOM Information Security systems including firewalls, IDS, and security management platformsAssisted in designing and implementing a software tracking database that allowed us to keep track of current software packages installed on all systemsAssisted in the building of highly available Checkpoint Firewall clustersSecurity AnalystAssisted in the daily auditing of firewall logsAssisted in the daily auditing of proxy logsModified firewall rules per customer requestBuilt and Administered Sun Java System Web Proxy serversBuilt Sun Solaris workstations and servers as neededUpgraded software on Unix machines as neededUsed tcpdump to analyze network trafficEvaluated software products in a controlled test environmentResolved help desk trouble tickets related to web proxy servers

Responsible for the creation and deletion of user accountsAdministered the organization-wide Microsoft Exchange serverAdministered Windows NT 4.0 Servers (Domain Controllers and Member Servers)Migrated to Windows 2000 Server, including Active Directory, Dynamic DNS, and Exchange 2000Supported end-users through the campus help deskDiagnosed and repaired hardware or software malfunctionsBuilt custom PC workstations on-siteAssisted in the administration of Cisco switches and routers (3500XL, 6509)Assisted in the backups administration using BackupExecAdministered Unix based servers (DEC Unix, FreeBSD, Linux)Built listserv machine running Majordomo/FreeBSDBuilt a DNS server running BIND/FreeBSDBuilt a Windows 2000 RAS/VPN serverBuilt two web proxy servers with open source productsAssisted in the rewiring of network cabling in several labs and officesAdministered a Macintosh computer labAssisted in printer maintenance (toner, cleaning, troubleshooting, and paper jams)Built an Intrusion Detection SystemBuilt a VPN to tie together four remote sites to the main campus networkUsed Norton Ghost to facilitate networked deployment of Windows 2000 Professional to all staff machines