Career Summary:

• 15 plus years of experience as a Systems Administrator with extensive knowledge in VMware Virtualization.
• Primarily in a production and development environment with a multiple skills of Active Directory, VMware, Citrix with project management skills.
• Administration of Citrix XenApp Farms, Installation of Citrix Presentation server 4.0/ XenApp 4.5/5.0/6.5 Citrix Client Tools.
• Experience in administering Windows Terminal Server, Group Policy management and Active Directory environment.
• Experience as a VMware admin specialized in the area of Virtualization with VMware ESX 3.x and 4 servers and Virtual Center server, vSphere and SAN/NAS technologies.
• Administering, Planning and Maintaining a Microsoft Windows Server 2008 R2/2003/2000 Active Directory Infrastructure Managing over 5000 servers. Solid skills in database administration and network administration in large scale enterprise environment.
• Experience working in a high-availability MSCS clustered environment.

TECHNICAL SKILLS

• Hypervisors: ESX 3.0 ESX/ESXi3.5 ESX/ESXi 4.0 ESXi 4.1 ESXi 5.0
• OS: Windows Server 2008, Windows 7,Windows Server 2003, Windows XP Professional, Windows 2000, Windows 2000 Advanced Server, NT 4.0.
• Terminal Services Application Servers: Citrix Metaframe PS 4.0, XenApp 4.5/5.0 6.5.
• Applications: vCenter Server 3.5 /4.0/4.1/5.0 VMware Site Recovery Manager VMware Data Recovery, Citrix Presentation Server 4.X XenApp 6.5, MS SQL Server administration, Symantec Backup Exec 8.5.
• Hardware: IBM 3650, Equallogic iSCSI SAN PS 5000E, PS 5000XV, PS6000XV , Cisco UCS
• Power Edge Dell Servers, HP Blade Servers C7000 and C3000 and Rack Servers

Professional Experience:

Confidential

Senior System Administrator

• Configuring and Administering Microsoft Windows 2008/2003 Servers, Active Directory.
• Installation, configuration and administration working knowledge on Window 2008 R2/2003 servers at single or multi-level domain platforms.
• Maintaining Active Directory with 6000 user accounts 5000 Windows servers With exposure to ESX 4 .1 VMware Technology Key Role as Windows Administrator.
• Production experience with Internet IIS, IBM Websphere Application server, Windows 2008/2003/2000 Domain Administration, Application Servers, File Servers, Windows Terminal Server.
• Providing Infrastructure support for Windows 2003/2008, SQL File servers.
• Building new Servers according to security standards. Installing software, patching, upgrading and maintenance of operating system.
• Responsible for installing configuring and troubleshooting on 2008 R2 servers using enterprise standards.
• Managing VM ware infrastructure, Creating VM's, snapshots and Clones.
• Configure, troubleshoot and monitor core services such as Active directory, TCP/IP, DNS, WINS, DHCP and Group policy.
• Perform general system administration duties in a Windows Active directory environment, Patching of servers done through Shevlik servers.
• Extensive knowledge on install Configure Citrix presentation/Xenapp Servers.

Confidential

Citrix Consultant

• Citrix Xenapp 6.5 migration planning, developing, testing and moving the migration process onto full-fledged production network.
• Maintenance and troubleshooting of Citrix Server farm running Physical Virtual Windows 2003 servers, Xenapp 6.5 on Win2008 for production and test environment.
• Managing of Citrix XenApp 6.5/4.5 Farm using Citrix Management Console Server Management, Publishing Managing of Applications .
• Handling Citrix presentation/Xenapp Server Migrations Consolidations.
• Responsible for installing configuring and troubleshooting on 2008 R2 servers using enterprise standards.
• Managing and Maintaining a Microsoft Windows Server 2008 Network Infrastructure, Windows 2003 administration and support.
• Managing Citrix core infrastructure including Web, app, SQL and Citrix servers. Maintain Citrix Datastore, license servers, and Zone Data Collectors and Edgesight.
• Installation of applications on Citrix servers. Respond and resolve to monitoring alerts escalated to the team and Support Client applications installed on Citrix XenApp Servers.
• Configure applications on Citrix Presentation and XenApp servers.
• Provisioning new physical virtual servers and installing Citrix on them for expansion of Citrix farms.
• Responsible for administering and supporting Citrix server environment on Windows Server 2003/2008.
• Responsible for Terminal server builds and Citrix XenApp server deployments in both Physical and virtual environments
• Supported 10,000 plus User base.

Environment: Citrix XenApp 5.0/4.5,/6/5 Windows server 2003/2008 X86 X64, Citrix Streaming Profiler 6.5/6.0/5.2, SQL 2005/2008.

Confidential

VMware Consultant Sr System Administrator - VMware Citrix

Project involves administration and maintenance of Windows systems and also performed migration of servers to virtualized environment under VMware vSphere 4 using Vmware Converter thereby reduced overall IT infrastructure footprint. I'm responsible for maintaining stable Production, development and test infrastructures in support for multiple customers 42 in a large-scale data center located at Malvern, PA. My duties include system administration, database and application administration, information security, desktop support, and advising on best practices with technical solutions, the investigation and strategic planning of emerging technologies. Provided third level technical support for end user and support server issues in a data center on 24x7 oncall rotational basis.

Responsibilities:

• Build and implement ESX HA/DRS environments.
• Responsible for P2Ving acquired server hardware from newly acquired subsidiaries.
• Responsible for upgrading and keep ESX server patch levels current
• Day to day VMware tasks create VMs, manage resource pools, etc
• Responsible for ESX resource management, recommend solutions
• Support multiple VM environments for our products.
• Created and managed resource pools for Virtual Machines.
• Experience with multiple backup and recovery technologies like Cloning, Snapshots, and Disaster Recovery technology.
• Successfully migrated Virtual Machines and Virtual machines files using the VMotion and Storage VMotion.
• Handled the VMware solutions to support multiple storage connectivity options such as FC-SAN, iSCSI, NFS NAS and internal storage.
• Created templates from VMs and deployed VMs from templates.
• Designed, implemented, managed and maintained VMware Infrastructure 3.5, vSphere 4/4.1, 5.0 Apply all updates and upgrades
• Managed 6 Virtual Centers, over 280 ESX Servers, over 70 clusters and 3500 VMs.
• Provided day to day system administration and technical support for Windows 2003 Servers.
• Server hardening using Security Configuration Wizard and Group policies.
• Group Policy Objects GPO for desktop environment consistency security using Group Policy Management GPMC , Group Domain Local, Global and Universal Creation with scopes and permission assignment to resources, roaming profiles for users maintain organization Unit hierarchy with Delegation of administration.
• Managing Group Policy. Creating and Managing Organizational Units.
• Extensive experience in Installation, Configuration, Deployment and management of enterprise applications using IBM Websphere 5.1, 6.1 and 7.0 Deployment Manager Server and all WebSphere Application servers on Microsoft Windows 2008/2003/2000.
• Gathered various metrics for apply timings and support tickets to assist in driving root cause analysis.
• Provide on-call support, troubleshooting, incident notification and resolution, problem management, post-mortem analysis, and root cause identification.
• Perform software applies to internal development testing environments using documented procedures and processes.
• Provided Customer support by 24x7 shift rotation basis and monitored trouble ticket queues to attend user and system calls.

Environment: Windows 2003, Windows 2008, VMware ESX 4.X, Active Directory. IBM WebSphere DMGR/Application Server 5.1/6.1.0.13/7/X, Oracle, SQL 2000/2005, Tivoli-TSM BESR Backups, EVTS Tickets, TCP/IP, DNS, IIS 7.0/6.0/5.0, Windows Clustering, Citrix Presentation Server 4.5/XenApp 6.X.

Confidential

System Administrator

Analyzing and Resolving issues, handling escalations, performing root cause analysis, providing problem resolution, documenting all technical problems, developing and reviewing content for knowledgebase were part of my day to day responsibilities. Support: Active Directory, MSCS Cluster Services support, Windows 2000/2K3.

Responsibilities:

• Windows 2K/2003, Installation and configuration and designing of Active Directory.
• Design New Active Directory deployment/infrastructure for multiple sites for Clients.
• Maintain Active Directory Environment for Clients.
• Troubleshoot Active Directory replication/DNS/account issue/GPO .
• Troubleshoot Client Logon failures related to Kerberos, DNS Replication issues.
• Perform regular monitoring of network systems for performance, integrity, security, and availability. Support Microsoft Windows 2003 servers.
• Configure, troubleshoot and monitor core services such as Active Directory, TCP/IP, DNS, WINS, DHCP and group policy.
• Windows NT, Windows 2000 administration including admin and support
• Extensive experience in management of data center operations, network systems, and application development.
• Installing and troubleshooting Windows XP, Windows 2000, Windows XP, Windows NT and Windows 9X client application software in conjunction with the software analyst where needed.
• Resolving day-to-day user support issues and troubleshooting
• Responsible for security and integrity of the Information Systems.
• Managing the recovery Backup/Restore of data in the instance of a system failure.creating and managing user accounts. Email system setup and Anti-Virus Software
• Client software/hardware support/maintenance for windows 95/98, Windows NT and Windows 2000 workstation clients

Environment: Windows 2003/ 2000/NT, DNS, FTP, File Servers, DHCP, WINS, Active Directory.

Confidential .

System Administrator

Responsibilities:

• Installation administration of Windows 2003 Domain Controllers, Active Directory Design Architecture, File/Print/Database Servers.
• Maintain and support Microsoft directory and cluster services. Windows 2K/2003, Installation and configuration and designing of Active Directory.
• Design New Active Directory deployment/infrastructure for multiple sites for Clients.
• Maintain Active Directory Environment for Clients.
• Troubleshoot Active Directory replication/DNS/account issue/GPO .
• Troubleshoot Client Logon failures related to Kerberos, DNS Replication issues.
• Configure, troubleshoot and monitor core services such as Active Directory, TCP/IP, DNS, WINS, DHCP and group policy.
• Creating and managing User accounts and Permissions on Windows 2003
• Provided technical support, consultation and guidance for Software Engineers
• Installing and Configuring the Active Directory.
• Creating and Managing Organizational Units.

Environment: Windows 2000/NT, Active Directory, DNS, DHCP, WINS, IIS, FTP, Configure Maintaining LAN.

Confidential

Network Engineer / IT Specialist

• Responsible for the implementation and day to day maintenance of Servers, Workstation, Printers and LAN. Assembly and configuration of multiple Intel based Server and workstations.
• Installing, configuring and administration of Windows 2000 server/professional, Windows NT, windows 95/98/xp.
• Design, implementation, and administration of a Windows 2000 Active Directory domain infrastructure including DNS, DHCP, WINS servers in support of Windows NT/2000/XP servers and workstations.
• Experienced with Windows 2000 Active Directory design and installation and design and deployment of enterprise-wide Group Policies using Active Directory components.
• Implemented security and configuration for servers and clients using Group Policy Objects.
• Maintained a Windows 2000 terminal server environment for over 300 users and manage them using multiple OUs, GPOs and NTFS permissions.
• Windows 2000 Active Directory Migration from Windows NT 4.0.
• Experienced in rapid deployment of Windows 2000 Professional and Windows XP at the desktop level using disk imaging and unattended setup files.
• Manage the technical assistance to provide the deliberate IT supports for our Singapore General hospital/ Singapore International Airlines and globally.
• Involved in troubleshooting and fixing the hardware and software issues which occurred in LAN / WAN desktops and printers.
• Analyze and handling the errors in all SIA customized applications.
• Investigating server/network issues and fixing within strict SLA time limits.
• Assistance on Installation of network printers and local printers.

Environment: WinNT4.0 server/ Workstation, W2K Professional, 98 / 95, Terminal Services of Windows 2000 Advanced Server. Active Directory, TCP/IP, DHCP, WINS, DNS.

Confidential

Network Engineer

• Implementation of projects as per corporate requirements within the specified time period giving support for the existing infrastructure.
• Installing, configuring and administration of Windows NT, windows 95/98.
• Set up NT 4.0 Domains w/ replication, performed remote administration of BDCs.
• Administered and managed security for remote access service through Windows NT 4.0 servers to access corporate LAN/WAN.
• Supported operations of Windows NT 4.0 servers, as well as Windows NT 4.0 workstations, Windows 95 98 desktops.
• Performed day to day enterprise Windows NT administration such as user accounts, logon scripts, e-mail accounts, directory services, file system shares, and permissions.
• Provided Tier 2 network support for complex Local and Wide Area network.
• Supported client by proactively monitoring, identifying problems, and troubleshooting for corrective action
• To manage and to install the operating system, software and printers.
• Look after the connectivity of the systems and create user accounts and login.
• Evaluates and recommends hardware products for purchase.

Environment: Win NT4.0 Server/ Workstation, 98 / 95, Lexmark models, Canon, Axis Print Servers, Terminal Services of Windows 2000 Advanced Server, TCP/IP DHCP, WINS, DNS, SQL Server .