SUMMARY:

• Results - oriented self-starter with wide-ranging IT experience in Network Engineering .
• Highly skilled in resolving mission critical network and system issues.
• Experience in the installation and troubleshooting of wide area networks (WAN), local area networks (LAN) and Wireless networks.
• Demonstrated ability to communicate with technical and non-technical users.
• Able to apply technical skills to meet deadlines within demanding environments while consistently being recognized by management for exhibiting superior performance.
• Over 15 years of diverse System Administration experience in high-demand technical environments providing excellent customer service.
• Cross-platform experience in systems administration, including analyzing, designing, installing, maintaining, and repairing hardware, software, peripherals, and networks.

PROFESSIONAL EXPERIENCE:

Confidential, Washington, DC

Senior Systems Administrator

Responsibilities:

• Worked closely with management on development, implementation, and support of custom applications and hardware.
• Coordinated major moves and consolidation of business units among major sites.
• Provided support on disaster recovery inclusive of yearly preparation and testing, with real-life experience in recovering systems at location for lost and downed systems.
• Provide all levels of skilled technical support and preventive maintenance for servers, desktops, TCP/IP networks, enterprise backup solutions, and enterprise antivirus security suites.
• Versatile technical proficiency in Microsoft server technologies including but not limited to Active Directory Domain Services, Group Policy Objects, Exchange, Terminal Services, DHCP, DNS, IIS, WINS, WSUS, Storage Server, Remote Desktop Services, Security and Policy enforcement, Server Management, SQL Server, File Services, and Print Services.
• Proven ability to excel and provide substantial contributions in challenging environments through strong planning, organizational and analytical problem-solving skills.
• Excellent customer-service skills proven by effectively interacting and maintaining customer relationships.
• Management experience in leading projects, teams, departments, and classrooms.
• Plan and install required system security software updates and patches to correct weakness described by a security vulnerability.
• Responsible for supporting the entire Mobile Infrastructure and Applications for all DOI employees using MaaS360 as the MDM tool.
• Supported, tested, setup, and troubleshoot all devices for Android and IOS Smartphones /Tablets devices.
• Assisted the Mobile Development group/Mail Team team for testing new security products, updates and patches.

Confidential, Columbia / Hunt Valley, MD

Systems Administrator

Responsibilities:

• Provide remote technical support for Confidential customers and partners.
• Work closely with third-party software vendors and their professional services groups to solve complex integration problems in a Cloud, Office365, Windows 2008 R2, 2012 and Microsoft Exchange 2010/2013 environment.
• Provide advanced level technical support for networking and security products.
• Recommend changes to improve systems and network configurations, and determine hardware or software requirements related to such changes using SCCM 2012 and SCOM Patch Management.
• Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices, mobile devices, anti-virus clients, TCP/IP networking, IPSec VPN, and SSL
• New Hire Administration: create domain accounts, Outlook e-mail accounts, configure mobile devices, setup VOIP phones and printers.
• Participated in complete system builds, upgrades, migrations, and patch management
• Exposure to ESX 4 .1 VMware Technology Key Role as Windows Administrator approvals for any kind of change related to Software and Hardware.
• Exchange organization to include: daily queue monitoring, messaging tracking and analysis of both front end and back end servers, contingency planning for disaster recovery, message archiving,.
• Technical support and security of Mobile Device Management tools on multiple mobile devices including the IPhones, IPads, Androids, and Blackberries.
• Managed an Active Directory site; replication schedules, site links and boundaries, used Confidential to create and manage computer, user and group accounts in an Active Directory environment.
• Maintained and troubleshoot the server /network infrastructure using monitor tools.

Confidential, Rockville, MD

Senior Systems Administrator

Responsibilities:

• Citrix Xenapp 6.5 and Xendesktop 5.6 administration with over 100 published applications and virtual desktops.
• Experience with VMware update manager to install patches and updates on ESX hosts and virtual machines.
• Provide 24/7 Tier 2 & 3 support for all day to day activities and outages for 36 buildings.
• Authenticates management permissions for user and group accounts using Active Directory.
• Created and managed Active Directory (AD) Organizational Units (OU), Group Policy Objects (GPO) users and groups.
• Remotely locate, lock and wipe lost or stolen devices. Verifies security for Servers, Desktops, Laptops, Win XP/7/ 8/MAC OS X, passwords, directories, and files.
• Performing all day-to-day routine system operational tasks such as disk reorganizations, system backup, monitoring and maintaining concurrent system operations using Backupexec/Arcserve.
• Perform remote user support utilizing RDC, CA-RCO and Bomgar .
• Application support for asp, .NET & java based hosted internal & external websites.
• Deployed .Net based Applications and Java based apps on IIS 6.0
• Performs day-to-day user administration (install, troubleshoot, and configure) Lotus Notes e-mail clients .
• Duties include: recording trouble tickets and resolution procedures, using Unicenter TNG AHD/Remedy.
• Perform Network integration, Network Design, LAN/WAN management, as well as TCP/IP and desktop/server configuration.
• Created and deleted mail accounts, forwarded mail, migrated mail files and databases, restored mail files, and recertified Lotus Notes ID’s.
• Platform Operating System support for Windows (XP, 7 and Server), MAC, iOS, Android, and Blackberry.
• Closely coordinates the troubleshooting process of Cisco Layer 2-3 devices within the Confidential Network with the NOC Network Operation Center.
• Responsible for the installation, configuration, monitoring, and administration of all devices on the LAN to include the following hardware; Dell Power Edge servers, Dell Optiplex desktops, Lenovo laptops, and our Cisco firewall/VPN.
• Performs fault isolation affecting WAN/LAN connections, such as: Cisco VPN and 7207 routers as well as diagnostic and isolation of LAN issues, such as Cisco 3550 switches and Carrier's Layer 1 CPE including CSU/DSU and the troubleshooting of connecting media ( Confidential modules and Trunks).
• Generates and updates trouble tickets using and Unicenter Ticketing software. Troubleshot Cisco 2600, 6509, and 7200 routers - Layers 2-3 issues, as well as AT&T Netgate VPN and Point-to-Point Tunnels, IPSec.
• Responsible for supporting the entire Mobile Infrastructure and Applications for all Confidential employees and contractors for Blackberry, Android and IOS Smartphone and Tablet devices. Provide 24/7 support for MDM application, Wireless/Mail access and security compliance. Assisted all technical field teams on setting up mobile devices and tablets using MDM software - MaaS360.
• Proactively monitor the MaaS360 servers and services for problems and suspected performance issues; perform and verify the success of periodic backups of the servers, system restores, schedule hardware maintenance.
• I monitor, support, and maintain our Blackberry Enterprise Server (BES) V 4.1; Networking Equipment.

Confidential, McLean, VA

Lead Systems Engineer

Responsibilities:

• In-depth knowledge in Microsoft Windows 2000, 2003 & 2008 Active Directory, and SCCM 2007.
• Conducted hardware and software testing; prepared/reviewed engineering documentation.
• Supported program office on Request for Change proposals. Analyzed infrastructure to provide reports, briefings, and presentations.
• Created over 5000 user accounts in Active Directory and migrated all Windows NT users by ‘User State Migration Tool (USMT)
• Provided technical guidance and project leadership for 12 System Engineers.
• Participated in product design and testing with product management, software engineering, and QA teams.
• Supported phone infrastructure, including: T1/DSL connections, IP telephony, and VPN/remote access.
• Installation and configuration of VOIP phones as well as CISCO IP communicator setup.
• Installed, configured, maintained, monitored, and supported internal and clients’ IT infrastructure, including: WSUS servers, routers, switches, firewalls, wired and wireless networks (802.11), servers, laptops, printers, remote access points etc.
• Configure and provision Aruba remote access points using AOS 6.1.3.1
• Utilized ADMT (Active Directory Migration Tools) to migrate 400 + accounts, 600 + groups, and 300 + computers to the new forest design.
• Responsible for support of existing security policies and procedures, as well as creation and implementation of new security procedures.
• Directed, led, and participated in developing specifications and disaster recovery / business continuity plans.
• Assisted with the development of policies and procedures for the LAN, WAN, and Wireless Network per SLA.
• Monitored and evaluated contractor policies and management controls affecting computer applications per SLA.
• Analyzed and evaluated security with integrated systems of computer programs and computer equipment.
• Managed maintenance of data network diagrams and other documentation that detailed the location and interaction between servers, data circuits, infrastructure devices, and other network devices and processes.
• System Administration with AD,Sql, IIS, FTP and Proxy, Query AD objects

Confidential, Washington, DC

System Administrator

Responsibilities:

• Monitored and troubleshot the Confidential network architecture using tools, such as: Net IQ, Solar Winds, WhatsUp Gold, and HP OpenView.
• Managing of local Windows 2000 Domain controller (Active Directory, IIS, DNS, DHCP, BlackBerry Enterprise Server Administration).
• Supported an organization of over 3,000 users in an Active Directory and Exchange 5.5 clustered environment.
• Exchange 2003 to 2007 migration and consolidation of 3,400 mailboxes and 3 TBs including consolation of eight Exchange site to one primary site with a passive DR site.
• Creation & Deletion of user’s, Delegation of Rights, Security Groups, Distribution Groups, Managing Mailboxes.
• Implement and maintain messaging servers, anti-virus application, virus definitions, engine updates, and quarantine policy and notification announcements.
• Administered Windows NT in a multiple domain network, including: DHCP, WINS, DNS and RAS.
• Performed backups, updated operating system patches, and provided anti-virus configuration and support.
• Coordinate with the Setup Room Management and staff for Desktop/Laptop configurations, mobile support, laptop images and networking equipment.
• Maintained and supported The Veterans Administrations VLAN that included duties supporting Windows NT 4.0, Windows2000, Windows XP Professional.
• Installing Internet Information Server 4.0 & 5.0 - Configuring virtual directories and websites.
• Provided Technical Support for 2,425 users. Diagnosed and resolved complex LAN/WAN problems, as well as provided guidance to subordinate Network Systems staff in problem diagnosis and resolution.
• Troubleshot, migrated, deleted, recertified, and restored mail files as the Lotus Notes Administrator.
• Installed and configured various network hardware, (ISDN, Dell Servers, VPN, Compaq Servers, Hubs, etc).
• Supported CIO Helpdesk with solutions, direction, and problem solving. Created, added, and deleted security accounts for Remote Access Services. Created technical and instructional reports and manual.
• Searched the Microsoft Knowledge Base for updates, latest patches information, and problems solutions.

Confidential, Rockville, MD

LAN Administrator/ Team Lead

Responsibilities:

• Provided network support in a Windows NT and Novell environment, which involved 60,000 users.
• Configured and troubleshot Microsoft’s Exchange Server migration from Confidential to Exchange2003/Outlook client.
• Tested Confidential Migration Research Distribution Program “ Confidential ” to assist in the installation and configuration process of email. Deployed applications; addressed Y2K issues in a client/server environment.
• Assisted in Configure server roles, recipients, groups and mailboxes.
• Responsible for repairing all phases of the desktop and laptop software/hardware configurations which include remote dial-in support using Citrix.