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Senior Windows System Administrator/technical Lead Resume

Washington, DC

PROFESSIONAL SUMMARY:

  • Results driven Windows System Administrator with 15+ years of experience. Seeking to help improve, support, and better manage IT infrastructure through proven Systems Administration experience.
  • At The Department of Transportation led a project to implement System Center Configuration Manager and System Center Operations Manager for improved patch management, system inventorying and system monitoring.
  • The work was completed 15 days before the due date and helped lower software licensing costs.
  • Excellent customer service and communication skills with team members, clients whether written or verbal
  • Flexibility to work in large or small teams with or without supervision, as well as being a self - starter
  • Strong Active Directory, Group Policy, DNS, and DHCP configuration, administration, support skills
  • 3+ years Office 365 administration and deployment experience as well as On-Premise Exchange Server Administration
  • Experienced in System Engineering Change Management process
  • Third-party vendor management and outsourcing experience to provide critical resolution of issues whether remote or on-site
  • Antivirus administration and support with (Trend Micro, Symantec Endpoint Protection, F-Secure, McAfee VirusScan, Kaspersky, Bitdefender GravityZone)
  • Vulnerability scanning and security remediation skills using Nessus Professional
  • Azure cloud experience with Azure IaaS, Azure Backup, Azure Resource Manager, Azure Active Directory, and some Azure PaaS Web Apps
  • Strong experience with Windows Server 2008/2012/2016 administration, management and troubleshooting including taking ownership of root cause analysis
  • Experienced with Virtualization Technologies Hyper-V 2012/2016 and VMware ESXi 4.0/5.5/6.5 administration, troubleshooting and support
  • System Center Configuration Manager and System Center Operations Manager for operating system patching, inventory and system monitoring of resources
  • Automating in Windows Server environments using PowerShell

PROFESSIONAL EXPERIENCE:

Confidential, Washington, DC

Senior Windows System Administrator/Technical Lead

Responsibilities:

  • Led a project to implement System Center Configuration Manager to improve security compliance and stream line the software patching process
  • Led a project to implement System Center Operations Manager to improve system monitoring, uptime and performance
  • Led a small team of Windows System Engineers duties included 70% technical work and 30% management of the team
  • Led a project to perform system wide Active Directory and Group Policy cleanup improving AD performance and removing hundreds of unused and/or duplicate Group Policies
  • Oversaw Change Management activities of the Infrastructure team to ensure timely completion of IT projects
  • Managed and oversaw VMware vSphere virtual environment managing 300+ virtual hosts
  • Managed and oversaw scheduled system upgrades and patching during weekly maintenance windows
  • Managed security remediation and vulnerability scanning process ensuring all reported vulnerabilities by our Security Operations team was resolved before specified deadlines
  • Participated in On-Call rotation

Confidential, Washington, DC

Active Directory System Administrator

Responsibilities:

  • Improved the process of provisioning and deprovisioning users using PowerShell scripts
  • Managed system application access via various security groups for a large group of users
  • Managed and maintained Active Directory integrated DNS, adding, modifying records, checking that stale records are being scavenged
  • Performed auditing and reporting on Active Directory as requested by management using PowerShell scripts
  • Performed On-premise Exchange mailbox management duties such as monitoring storage of mailboxes, managing special VIP mailboxes, temporary mailboxes for certain uses, and troubleshooting Exchange bounce back messages

Confidential, Washington, DC

System Administrator

Responsibilities:

  • Helped save the company thousands of dollars by performing physical to virtual migrations of old expired off warranty physical servers into VMware virtual machines which lowered power costs, consolidated data center space as well as increased performance
  • Led a project to help the company market it’s technical support services better by assisting in the creating of a brand new corporate WordPress based website including offering guidance on marketing the company website through the use of Search Engine Optimization and paid advertising
  • Administered and supported Windows 2008 R2, 2012 R2 virtual servers running on VMware
  • Managed VMware vSphere virtual infrastructure at colocation environment (Atlantech Silver Spring MD Facility)
  • Managed client websites that were hosted on On-premise IIS or Azure, AWS cloud platforms
  • Maintained datacenter hardware, cabling, and network equipment, and coordinated with smart hands as needed
  • Provided support for Red Hat Linux systems running Apache/cPanel/WHM web hosting environment
  • Managed and supported Ipswitch IMail, Campaign Enterprise, PowerMTA services

Confidential, Rockville, MD

Remote Technical Engineer

Responsibilities:

  • Provided Tier 3 remote technical support in a fast paced 24/7 365 support operation with a client base of 1000+ customers
  • Administered hosted and On-premise Exchange services and troubleshot mail flow problems, Exchange errors, database mount errors and Exchange database defrags
  • Supported a large variety of customers with different environments remotely, routinely working on dozens of different trouble tickets daily
  • Participated in on-call support
  • Documented technical problems to knowledgebase which helped improve resolution time
  • Supported Office 365, implemented Exchange distribution and security groups, provisioned user mailboxes, and ran message trace as needed

Confidential, Washington, DC

Windows Server Administrator

Responsibilities:

  • Helped improve organizational efficiency by leading a project to deploy SharePoint 2010 which introduced document workflows, website portals and improved communication tools
  • Responsible for the support and administration of all network operations, including SonicWALL firewalls and HP switches
  • Administered and supported Microsoft Exchange Server, Windows 2003 Server, and SharePoint 2010 Farm
  • Documented Windows Infrastructure including providing documentation for users on how to use various systems and applications
  • Responsible for all desktop support which included Windows and Mac platforms as well imaging and re-imaging systems using Norton Ghost

Confidential, Gaithersburg, MD

Network Field Engineer

Responsibilities:

  • Provided reactive and scheduled on-site technical support to customers in and around the Washington, DC area
  • Provided technical leadership to small and medium business clients recommending the most appropriate solutions to problems reported
  • Managed client networks including administering and configuring network switches, routers and SonicWALL firewalls
  • Supported and administered all aspect of client technical environment including desktops, servers, mobile devices, print servers, and software applications

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