SUMMARY:

• A highly skilled Systems Administrator with extensive experience in administration, planning, installation and maintenance of Windows Servers, e - mail messaging environment (Microsoft Exchange), Cisco e-mail Security appliances as well as a fleet of Mobile devices in a multi-national corporate environment.
• Customer focused and results orientedteam player with excellent communication and presentation skills.
• Successfully led a project to migrate F5 BIG-IP Local Traffic Manager (LTM) running on an old hardware to a Virtual Edition resulting in improved performance and security, reduction in cost and eliminating downtime.
• Worked with a team to plan and upgrade over 300 Windows Servers running on W2K3 OS to W2K8 R2 whichhelped company alignits organizational standards and strategic business plan as well as continued support from the vendor (Microsoft).
• Managed and led a project to migrate company’s e-mail messaging platform from IBM Lotus Domino/Lotus Notes over to Microsoft Exchange/Outlook which helped company consolidate its messaging app into Windows domain, provided a reliable and adaptable email collaboration and communication platform as well as 80% cost reduction in software maintenance.
• Worked with Cloud vendors and internal technical team to plan and relocate company's Data Center to Cloud-based infrastructure resulting in zero up-front capital costs, improved security and performance.
• Trained Helpdesk staff on various applications such as CA ARCserve, EMC Networker, MS Active Directory, Exchange, Outlook, Citrix and other day-to-day operations which resulted in improving their productivity as well as consistently earning 99% issue-resolution scores by providing excellent service to internal and external customers.

TECHNICAL SKILLS:

Operating systems : Windows Servers 2003/2008/2012 , Windows PCs 10, 7, XP/NT, PC-DOS, HP 3000/995, MPE-IX 5.0, HP 9000/800-HP-UX, Cisco AsyncOS.

Applications : MS Exchange Server 2007, Exchange Management Shell, MS Active Directory 6.1, DHCP, DNS, VMware ESXi 6.0, VMware vCenter Server 6.0, vSphere Client 6.0, Blackberry Enterprise Server 5.0.3 (Exchange &Lotus Domino), Lotus Domino R8, Lansweeper5.3, Citrix AppCenter 6.0, Citrix XenApp 6.5, McAfee VirusScan Enterprise 8.8. McAfee ePolicy Orchestrator 5.3, F5 VE Big-IP 11.5, CA ARCserveBackup 16.5, ARCserveBackup UPD, EMC Networker 8.1.2, VMware VDP 6.0, VMware AirWatchMDM 9.0.2.3, Cisco Email Security Appliance (Ironport), Cisco SMA, Orion Solarwinds, MS Office 2007/2010, MS SQL Server 2008, Windows PowerShell 5.0 and Scripting.

Protocols : TCP/IP, IPX/SPX, Telnet, WINS, DHCP, DNS, SMTP, LDAP, POP3, FTP.

Networking : LAN, WAN, VPN, Cisco Routers & Switches, Junipers NetScreen, Frame Relay, Remote Access.

Hardware : HP ProLiant Blade Servers 460c G7, Dell G5 Servers, SAN, NAS, NetApp FS6000 series, IBM Blade Servers, HP Overland ARCVaulttape library, Quantum tape library, BlackBerry PlayBook, BlackBerry smartphones, Androids &Apple iOS.

PROFESSIONAL EXPERIENCE:

Confidential, Richardson, TX

Customer Support Engineer

• Interact with customers (phone and email) using ticketing system (CaseMon) while in queue.
• Provide technical support to customers for issues such as configuration, email flow, Threat Intelligence (Talos), upgrade, optimization and Office 365 integration on ESA appliances.
• Assist customers to resolve issues on ESA appliances related to DNS, Network mis-configurations, Firewall settings as well as educate them with unfamiliar product features.
• Reproduce customer’s issues in virtual lab such as installing Windows Servers, Email Security Appliance and integrate with Active Directory and MS Exchange Servers.
• Maintain excellent customer relationship working through the life of the case until fully resolved resulting in improved customer’s confidence in Cisco’s product (ESA appliance).

Confidential, Dallas, TX

Systems Administrator 

• Built and updated Windows Servers in VMware; installed business applications as needed resulting in up-to-date and robust Data Center.
• Maintained and managed MS Exchange Servers, Active Directory objects as well as Citrix, Anti-Virus and data protection applications.
• Managed and maintained Cisco Ironport appliance; troubleshoot technical issues such as message tracking, mail policies, domain Whitelist/Blacklist and fine-tuned security services.
• Enrolled and managed mobile devices such as Android, Apple iOS through AirWatch MDM.
• Troubleshoot escalated end user community issues such as email deliveries, Group Policies, data restores, Active Directory User Account and share permissions on File Servers.
• Wrote technical documents for day-to-day tasks as well as Standard Operating Procedures (SOPs) resulting in faster issue resolution and satisfied customers.
• Used PowerShell and scripting to automate many administrative tasks in MS Exchange, Active Directory as well as on various application servers.

Confidential, Lewisville, TX

Systems Administrator

• Monitored and troubleshoot over 300 Microsoft Windows Servers for alerts, problems and issues resulting in high availability and minimizing downtime.
• Installed, updated and patched Windows Servers; installed applications using Group Policies (GPO).
• Diagnosed hardware brake-fix issues; coordinated parts replacement with third party vendors.
• Used PowerShell commands to query and export data from Active Directory and various app servers.

Confidential, Irving, TX

Systems Analyst/Premier Support

• Installed BlackBerry Enterprise servers as well as Domino and Exchange e-mail servers on Windows platform to troubleshoot client technical issues resulting in resolutions.
• Analyzed logs on BlackBerry Enterprise Servers, BlackBerry Administration Service, Lotus Domino, MS Exchange and Windows Servers for root cause analysis.
• Troubleshoot SMTP mail routing issues, performed mail database replications and maintenance.

Confidential, Manhattan, NY

Lotus Domino/Network Administrator

• Managedand maintained over 30 stand-alone and clustered Lotus Domino Servers.
• Upgraded Lotus Domino, Lotus Sametime and Lotus Traveler servers to R8.
• Troubleshoot day-to-day issues on Domino servers as well as supported end user community for issues related to mobile devices such as BlackBerry, Android and iPhone.
• Utilized various Citrix products such as XenServer, XenApp, XenDesktop to maintain and support various corporate business needs.
• Monitored and maintained SMTP mail gateway server (Proofpoint Protection appliance).

Confidential, Lake Success, NY

e-Mail Messaging Support Engineer/Systems Administrator

• Played a lead role in planning and migrating corporate messaging system from Lotus Domino over to Active Directory/MS Exchange 2003 platform eliminating remote-site administration and license cost.
• Maintained Active Directory resources, end user services and objects; supported and administered two separate 'Two Nodes' Microsoft Exchange 2003 Server Cluster, with over 3000 mailboxes.
• Worked closely with Network and Security team on DNS, DHCP, WINS, Cisco routers, NetScreen, SAN and NAS related issues; administered and maintained 3rd party anti-virus and backup applications for multiple servers guarantying well maintained security of the servers and data restoration.
• Administered and maintained over 100 Windows-based Lotus Notes servers in clustered, partitioned and in VMware environment for an end user community of over 3000 users.
• Planned and upgraded Notes servers from R5, R6, R7 to R8, resulting in an up-to-date system, new functionalities and continuous product support from the vendor.
• Supported e-mail (internal and external) routing and cross-domain database replication issues; performed Notes application database maintenance.
• Used Lotus script to automate various tasks within Lotus Notes databases.