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It Operations Technical Lead/ Systems Administrator Team Manager Resume

Dulles, VirginiA

SUMMARY:

  • Information Technology professional with 16 years of professional experience in highly visible and mission critical roles.
  • Possesses expert skill level and highly knowledgeable in a wide variety of Information Technology domains including cybersecurity, engineering, systems administration, networking, datacenters, and virtualization.
  • Possesses various industry respected certifications in a multitude of competencies such as MCSE: Server Infrastructure, MCITP: Enterprise Messaging, VMware VCP, Cisco CCNA, and the high level security certification CISSP.
  • Candidate also holds a Bachelor Degree in the Computer Information Technology.
  • Proficient at engineering and administrating enterprise Microsoft Windows networks, Microsoft Exchange messaging solutions, and environments utilizing VMware virtualization solutions
  • Past experience includes managing and engineering of Microsoft Exchange 2003 and 2010, Active Directory, Group Policy, SCCM, DNS, DHCP, and VMware 4, 5, 6 virtual environments
  • Highly skilled at managing Windows Server Operating Systems 2003/2008/2012
  • Experience installing and configuring storage arrays and engineering backup solutions
  • Confidential Standard Technical Implementation Guide (STIG) and server hardening experience
  • Knowledgeable of Department of Defense (DoD) and Confidential (DoS) unclassified and classified environments and familiar with standard policies and procedures
  • DOD 8570:IAT Level III Compliant

PROFESSIONAL EXPERIENCE:

Confidential, Dulles, Virginia

IT Operations Technical Lead/ Systems Administrator Team Manager

Responsibilities:

  • Perform daily team lead management and operations duties for Confidential ’s Domestic and foreign DHCP infrastructure in the Enterprise Network Management Office supporting over 50,000 workstations and other DHCP devices
  • Responsible for providing Operations Technical leadership to Senior and Junior Staff on shift including delegating tasks, providing technical guidance, managing shift schedules, and ensuing compliance with work policies and procedures
  • Manage 3000 DHCP Scopes spread across multiple State Department locations including Embassies, Consulates, and State Annexes domestically and overseas
  • Worked on the engineering, testing and implementation of the migration from MS Server 2008 R2 DHCP Databases to MS Server 2012 R2; developed migration documentation
  • Work on the engineering, testing and implementation of the migration from MS Server 2012 R2 DHCP Servers to OpenNet and ClassNet Infoblox Grid architectures
  • Engineered and configured Microsoft DHCP High Availability solution for failover services on DHCP Infrastructure servers to provide redundancy within DoS DHCP Infrastructure
  • Provided Engineering and Configuration support to Principal Senior Engineer including implementing changes in production during 24/7 mission critical operational environments
  • Continuously Monitor SCOM alerts to respond to system resource issues, event log errors, and critical services
  • Provide troubleshooting support to domestic and foreign customers requiring DHCP support in 24/7 operational environment

Confidential, Dulles, Virginia

Sr. Systems Engineer II (Virtualization)

Responsibilities:

  • System engineering of virtualization tasks/projects for the Confidential Program located in Ft. Meade, MD
  • Developed and engineered a repeatable process for deploying standardized and hardened collection of virtual servers and system configurations across multiple Secret/Rel networks
  • Lead projects and tasks to design, engineer, and deliver Microsoft server solutions to users from development laboratory to production networks
  • Perform Interoperability testing with International Coalition to ensure systems work as intended across multiple NATO partner networks
  • Provide TIER III Problem resolution/analysis of Active Directory, DNS, SQL, Email issues across several Combined Federated Battle Laboratory networks (CFBLnet)
  • Perform Network Monitoring and analysis of CFBLnet networks
  • Perform Security monitoring of internal network utilizing various security tools such as HBSS, etc.
  • Perform Security hardening of Windows server 2008/2012, MS Exchange MS Office 2013, VMware hosts, Virtual Servers, and vCenter databases
  • Performed P2V of 100+ Microsoft/Linux physical servers from an all physical server environment to 100% virtual environment
  • Installation, Implementation, and configuration of Dell network attached storage arrays
  • Microsoft Exchange 2010 administration, engineering and problem resolution of organizational email issues
  • Engineered and deployed directory sync tool to share Global Address List data with Coalition partners across several external trusted coalition domains
  • Successfully engineered, tested, and deployed virtual baseline configurations to multiple networks using dell’s 3 - 2-1 solution utilizing 3 physical Dell R730 servers, 2 Cisco catalyst 3560x switches and a Dell EqualLogic storage arrays
  • Configuration of Cisco catalyst 3560x switches for use in virtualization/storage suites
  • Create System Design documentation and TTPs for system engineering projects

Confidential, Fairfax, Virginia

Cyber Systems Administrator

Responsibilities:

  • Provide system administration support and engineering for AFCENT US Air Force 609 ACOMs Det 1 existing network systems.
  • Tasked to lead projects or tasks and troubleshoot complex technical issues and manage them through to a successful conclusion
  • Administration of Active Directory, DHCP, DNS, and KMS services across 5 virtualized networks consisting 250 servers
  • Configure, optimize, and troubleshoot various systems or network related issues with VMware ESXi hosts or virtual servers
  • Administration of Group Policy Objects and HBSS EPO policy settings
  • Perform Exchange 2010 administration and health checks such as monitoring email queues, database sizes, disk space utilization, and perform mailbox moves as required
  • Configure and manage NetApp filer storage data volumes and LUNs and monitor disk space utilization
  • Push Microsoft SCCM 2012 packaged applications and patches to 500 clients workstations and 200 servers
  • Perform backup configuration, monitoring, and data restoration using NetBackup
  • Provide systems administration support for Air Force Collaboration tools such as MIRC, InfoWorkSpace, and Transverse chat clients and backup support for Global Command and Control System (GCCS)
  • Monitor and troubleshoot SQL servers and database issues
  • Installs hardware and software upgrades to network servers and storage devices including operating systems patches, firmware upgrades, hard disk drive replacement, and application patches
  • Ensures compliance with DOD IAVA requirements and installs required Windows and VMware system patches.

Confidential, Atlanta, GA

Systems Engineer

Responsibilities:

  • Performed system administration and engineering of Confidential of Engineers existing network systems including 60 virtual Windows 2003/2008/2012 servers, Microsoft Exchange 2003/2010 servers, Microsoft System Center Configuration Manager 2007, VMware ESXi servers, and Storage Area Network devices
  • Performs duties as Information Management Officer for all users requiring access to classified systems which included account creations, enforcing user and system policies, and setup and configuration of various NIPR/SIPR/CXI classified networked devices such as workstations, printers, digital senders, and Video Teleconferencing Equipment
  • Installed, configured, and optimized VMware ESXi host servers and virtual machines
  • Installed and configured of UCS blade servers and Dell R610/710 PowerEdge servers
  • Installation, configuration, and optimization of Dell EqualLogic PS 6000 series storage arrays and configuration of ISCI LUNs
  • Configuration and Deployment of Cisco 3750 Catalyst Switches and troubleshooting Ethernet and fiber cabling issues
  • Managed Active Directory services including DNS, DFS-R file servers, DHCP, WDS, Group Policy, and File share NTFS/Share permissions for over 1000 system users
  • Managed Microsoft System Center SCCM collections, packaging of applications and patches advertised via SCCM 2007 and Windows Patch Management via WSUS to over 800 clients
  • Performed backup configuration, monitoring, and data restoration using Microsoft System Center Data Protection Manager and Backup Exec 2010 R3
  • Performed Exchange administration including mailbox moves, exmerges, mail delivery troubleshooting, and mailbox backup and restoration
  • Engineer, implement, and deploy PXE Windows 7 desktop images using Windows Deployment Server
  • Daily monitoring of the health of the network, servers, virus protection, and network storage devices
  • Performs hardware and software upgrades to network servers and storage devices including operating systems patches, firmware upgrades, hard disk drive replacement, and application patches
  • Ensures compliance with DOD IAVA requirements and installs required Windows and VMware system patches.
  • Deployed, managed, and solved technical issues with Cisco IP phone zero clients using VMware View Administrator in USACE’s Virtual Desktop Infrastructure pilot deployed to 100+ users.

Confidential, McLean, VA

Systems Administrator

Responsibilities:

  • Performed system administration of the Confidential SWA Active Directory domain and Exchange 2003 network with over 10,000 users 
  • Provided systems administration support for unclassified and classified Windows 2003 networks including day to day operations, maintenance, and troubleshooting of domain controllers, DNS, VMware ESXi clusters/hosts, storage devices, exchange servers, DHCP servers, and file/print servers
  • Responsible for administration of 30 virtual exchange servers, 6 domain controllers, and 3 file servers across 3 separate networks
  • Migrated user mailboxes from 2003 Exchange Physical servers to Exchange 2003 Virtual servers
  • Managed VMware virtual machines using VSphere VMware client and VCenter Server
  • Monitored and managed SAN server storage usage and troubleshooted space issues
  • Monitored Exchange server performance, Exchange services, messaging queues, troubleshoot mail delivery problems, and optimize exchange performance by compacting exchange databases using ESEUTIL utility
  • Managed and administrated active directory security settings for various user accounts, groups, distribution lists, organizational units, and network resources
  • Utilized various Industry tools such as SCOM 2007, SCCM, WSUS to monitor and identify critical errors while also automating patching to increase efficiency of maintenance of multiple servers across several networks
  • Responded to Security Incidents where unauthorized classified information was placed on inccorect networks and used tools such as ExMerge to remediate incidents
  • Installed operating system updates, evaluate and install IAVA patches and report system compliance to IA team
  • Performed changes to network hardware and attached devices including various Dell Servers, fiber switches, and SANs
  • Ran Full, System State, and Exchange Backups of servers using Symantec Backup Exec

Confidential, Arlington, VA

Exchange Systems Engineer

Responsibilities:

  • Provided engineering support for a 22-server Windows 2003 network including day to day operations, maintenance, and troubleshooting of NAVSEA DMS Exchange email system and DMS Messaging Application which consisted of Exchange 2003 Clustered servers and front-end Exchange 2003 servers
  • Provided system and network administration of NIPR and SIPR networks for the NAVSEA Defense Messaging System Active Directory domains including DNS and Microsoft Exchange engineering and administration to meet Confidential STIGs and other applicable DOD standards
  • Created ATO POAM entries for items (such as patches/group policies/registry settings) that took additional time to research to prevent potential negative effects by testing changes to the environment prior to implementation
  • Update DIACAP packages (NIPR/SIPR) to meet DIACAP and DOD policies.
  • Developed remediation plans, schedules, and mitigation strategies to enable the IAM and IAO to address Zero Day, CAT I, II, and III IAVA vulnerabilities in a timely manner
  • Monitored Exchange server performance, Exchange services, and messaging queues to ensure mail is passing normally
  • Monitored and troubleshooted Domain Controller, DNS, and Network issues which may negatively impact critical Messaging system infrastructure
  • Implemented Group Policies to enforce compliance with user and computer settings mandated by the DoD Standard technical Implementation Guides (STIG)
  • Install operating system updates, evaluate and install patches and report system compliance to IA team
  • Performed changes to network hardware and attached devices including investigation, analysis, recommendation, configuration, installation, and testing of new network hardware
  • Installed, configured, and Managed McAfee Anti-Virus Enterprise / HBSS on all Exchange servers
  • Run Full, System State, and Exchange Backups of servers using Acronis True Image Enterprise and NTBackup
  • Performed Certification and Accreditation (C&A) vulnerability assessments on NAVSEA Messaging System Networks utilizing the Network Scanner tool Retina and Confidential Gold Disk
  • Created site documentation to track changes to all systems

Confidential, Silver Spring, MD

Microsoft Exchange Administrator

Responsibilities:

  • Exchange administration of 30 Clustered Exchange 2003 email servers and 200 Exchange email servers remotely located worldwide
  • Monitored Exchange server performance, Exchange services, and messaging queues to ensure mail is passing normally
  • Monitored NETIQ and SCOM alerts to respond to system resource issues, event log errors, and stopped Microsoft Exchange services.
  • Visual inspection of server equipment and lighting displays
  • Performed hourly checks and annotated on daily checklist servers and systems within areas of responsibility.
  • Diagnosed and corrected common exchange server problems, including all advanced server hardware and software problems
  • Performed Exchange mailbox administration which included transferring mailboxes between servers and restoring mailboxes to previous states
  • Performed Message Tracking to troubleshoot delivery problems
  • Perform disaster recovery operations as necessary
  • Monitored, diagnosed, and troubleshooted Microsoft Exchange network connectivity issues
  • Installed operating system updates, evaluated and installed patches and performed Microsoft Exchange system configuration changes
  • Monitored backups of Exchange servers to ensure they were successful

Confidential, Fairfax, VA

Systems Administrator, Site Lead

Responsibilities:

  • Responsible for performing preventive maintenance, monitoring and optimizing the performance of Windows 2003 servers and network devices
  • Performed Active Directory and Microsoft Exchange user account administration including creating and deleting accounts and modifying group memberships
  • Monitored, diagnosed, and troubleshooted server and network connectivity issues
  • Install operating system updates, evaluate and install patches and perform system configuration changes
  • Manage Server backups using Symantec Backup Exec
  • Perform remote administration of servers
  • Perform Symantec Ghost Imaging of hard drives for use in computer equipment
  • Perform server and printer hardware testing, analysis, and repair

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