SUMMARY:

• Oversees the performance of 1,700 servers and monitor backup, clustering, mirroring operations
• Cisco Certified Network Professional
• Certified Network / Windows Server Administrator over five years professional experience
• Extensive experience in windows environment, both at the server and desktop level
• Advanced knowledge and troubleshooting Windows Server 2003/2008/2012
• Implement group policy at the domain or Organizational Level
• Configure network services such as RRAS, DHCP, DNS, WINS, RADIUS, NAT and VPN
• Provide 24/7 technical support to end users
• Experience with EMC CLARiion SAN storage system and Data Domain backup and archiving system
• Troubleshoot network connections, network protocols, and hardware problems at existing customers’ sites
• Experience in configuring and troubleshooting protocols, such as TCP/IP, FTP, SMTP
• Apply encapsulation techniques: PPP, MPLS, HDLC, and Frame Relay
• Configure routing protocols: RIP, IGRP, EIGRP, BGP and OSPF
• Able to construct VLANs and Virtual Trunking Protocols: ISL and 802.1Q
• Install SonicWall firewalls and configure access control list on firewall to filter inbound and outbound packet traffic, and setup content filter
• Excellent inter personal communication skill and great team player

TECHNCIAL SKILLS:

Network Operating Systems: Windows Server 2000/ 2003/2008/2012

Database Server: MS SQL 2000/2005/2008

Network Services: DNS, DHCP, VPN, WINS, RRAS, RADIUS

Routing Protocols: RIP, IGRP, EIGRP, OSPF, BGP

Storage Technology: EMC Celerra and Data Domain

Backup Software: BackupExec 11d, 2010, 2012

Hardware: Dell, HP, Confidential, Apple Mac, Cisco switches and routers

Network Monitoring Tools: IP Switch Whatsup Gold, Wireshark, SolarWind

Virtualization Technology: VMware, Microsoft Hyper - V

PROFFESIONAL EXPERIENCE:

Confidential, Rockville, MD

On Site Network / System Engineer

Responsibilities:

• Configure and deploy Cisco Wireless switches and access points
• Implement IGP and EGP routing protocols, such as OSPF, EIGRP, RIPv2, BGP
• Apply route and traffic filtering on the Cisco switches and routers inbound and outbound interface
• Configured and deployed Cisco wireless switches and controllers
• Configure and administer Cisco ASA 5500 series for Site-to-Site and remote access VPN
• Create or modify users account on Cisco Access Control Server (ACS), and troubleshoot Cisco AnyConnect Client and SSL VPN issues
• Configured and implemented PKI -Smart Card Log on system (two factor authentication) for users using GPO Deploy and administer Active Directory infrastructure including AD integrated DNS and DHCP server
• Deploy security patches on workstations and server using WSUS
• Configure GPOs, DFS-R, and shared folders and set the appropriate share, NTFS, special permission
• Experience with HEAT Ticketing System and Crystal application for reporting
• Maintain proper documentation for network devices configurations and inventory system
• Deploy and monitor the performance of VM on Citrix XEN environment
• Conduct periodic after hour maintenance on the network devices
• Provide technical support for NOAA network and VPN administrators

Confidential, Gaithersburg, MD

Network Engineer

Responsibilities:

• Install, configure, administer domain controllers, file servers, WSUS servers, and SQL servers on physical, VMware virtual machine, Microsoft Hyper-V servers
• Configure VLANs and Hot Standby Router Protocol(HSRP) on Cisco 7K and 5K switches with Nexus Operating System
• Setup, optimize, and monitor Microsoft Exchange servers, configured storage groups and mailboxes for users. Deploy and manage print and WSUS servers
• Administer Cisco Unified Communication Manager, Unity Connection Manager, Cisco Digital Media Manager, and Digital Media Player (DMPs)
• Configure and implement Group Policy, folder redirection, and Distributed File System (DFS) on servers
• Configure Logical Unit Numbers (LUNs) on EMC CLARiiON SAN, setup iSCSI initiator on the servers, and deploy VHDs
• Configure two nodes SQL Server Failover Clustering on Windows Server Failover platform
• Install and configure Backup Exec 2012 on a server and scheduled backups for all servers to EMC Data Domain storage system
• Install network operating systems on HP Proliant DL model servers using HP Smart Start media and Intelligent Provision (IP)
• Experience in VMware ESXi 4.1 environment, configure and administer multiple virtual machines on the hosts
• Configure inter-site and DFS-Replication of folders among different file servers
• Setup and monitor Video Conference over IP using Crestron
• Conduct after hours preventive maintenance on all network devices

Confidential, Manassas, VA

Windows Administrator

Responsibilities:

• Monitor and manage severs, applications, database integrity and functionality. Oversees backup and restore performance
• Troubleshoot servers, applications, or network connectivity problems
• Install and test upgrades and patches and restore or recover corrupted database
• Monitor the activities of server resources - CPU, RAM, Disk subsystems and compare the result against the established baseline
• Work Closely with SQL, Windows, UNIX, Citrix, and Oracle team
• Ensure that applications, such as InternetBooking, SAP, Maximo, WMS are up and running
• Install network operating systems on HP Proliant blade servers and update software
• Prepare and post System Status Report on Confidential Intranet site every two hours, and prepare Daily Shift Turn Over Report at the end of the shift