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EMAIL AVAILABLE PHONE NUMBER AVAILABLE Oak Hill, VA Street Address
SummarySelf-motivated and committed to working as part of effective teams. Proven history of success and detail-oriented work. . Skilled and qualified Cisco/F5 Big-IP certified professional to support in LAN and WAN environments. Quick to troubleshoot and successful at resolving diverse issues with hands-on experience in areas of system administration, implementation, and support. Knowledgeable and seasoned professional recognized for outstanding maintenance and troubleshooting abilities coupled with solid experience in various application stacks. Dedicated to implementing innovative solutions to solve technical challenges with over 15 years of experience. Experienced in Firewalls, VPNs, and Load Balancers technologies, understanding of operational dependencies of applications, networks, systems, security, and policy.SkillsNetwork Firewall ManagementInfrastructure DevelopmentPerformance Monitoring and OptimizationServer/Network ConfigurationOperating System ConfigurationServers and StorageLAN and WAN controlRouter Installation and OptimizationInfrastructure PlanningVMware and Oracle VMVirtual Machine OperationExperienceAcro/BAE Sterling, VASenior System Engineer08/2017 - CurrentBuilt and oversaw network infrastructure comprised of various virtual products. The environment is based on Palo Alto FW, F5/A10 Load-balancers, Cisco/Dell devices, VMware ESXi, vCenter/vSAN technology.Checked security methods, including firewalls and antivirus software to fully protect networks. Deployment on-premise Sophos, cloud Crawdstrike security solution.Used expert-level administration and optimization of hosts and servers to facilitate high availability and appropriate resource management. Management VMware virtual environment, Virtual machine creation, vSAN operation.Installed and configured RedHat Linux OS systems, application software and system management tools. DNS, NTP, LDAP services supportDesigned operational support system to monitor, control, analyze and manage computer network. Implementation of Splunk and Cacti utilities.Conducted high-level root-cause analysis for service interruptions, establishing preventive measures for future occurrences.Oracle/GCI Reston, VASenior Systems Engineer11/2011 - 07/2017Managed and supported network infrastructure comprised of various virtual products, Fortigate FW, F5 Load-balancers, Riverbed platforms.Managed and provisioned NetApp storage via SAN/NAS.Handled troubleshooting tasks for Local Area Networks, Wide Area Networks.Planned, implemented, and integrated updated system-oriented projects, RedHat/Oracle Linux servers update, migration, patch etc.Performed root cause analysis and created corrective action strategies to mitigate risks.Department of Energy/EES Germantown, MDSenior System Administrator11/2010 - 11/2011Set up, optimized and managed network equipment, Cisco/Checkpoint platforms, HP/Dell switches.Orchestrated and oversaw upgrades to system hardware and software, the environment was built on Solaris LDOM and Microsoft Active Directory in VMware vSphere.Managed, troubleshot, backed up and restored data in Sun Solaris, RedHat Linux and Windows operating systems to provide comprehensive systems management and support.Kept systems operating efficiently by performing necessary upgrades and repairs.Audiopoint Bethesda, MDSystem Administrator/System Engineer06/2005 - 11/2010Determined and alleviated hardware, software and network issues.Supported, configured, maintained, and upgraded company networks and in-house servers. Worked on Cisco ASA FW appliance, router/switches, Netscreen/Juniper security appliance, NetScaler Load BalancersDelivered reliable support for server-class systems, Sun Microsystems physical servers with Solaris OS running on top.Monitored application servers, rapidly responding to faults and malfunctions.Managed day-to-day storage equipment administration to promote optimal system asset application.Education and TrainingQueens College of The City University of New York Flushing, NYMaster of Science in Computer Sciences05/2002Tianjin University Tianjin, ChinaBachelor of Science in Electrical Engineering07/1992CertificationsCisco Certified Network Professional (CCNP)F5 Certified BIG-IP Administrator, F5 networkVMware Certified Professional, Datacenter Virtualization, VMwareRedHat Certified System Administrator, RedHatCompTIA Certified CE, Security+