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Senior System Administrator Resume

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Reston, VirginiA

SUMMARY:

  • Results - driven information technology Engineer with proven record of success in developing and executing strategies to promote organizational growth, infrastructure stability, and optimal utilization of technology. Working with Executive team to align IT activities with business goals.
  • Microsoft Windows server Administration - Design, Implementation, migration. Active Directory, Group Policies including AGPM, AD Audit reports with PowerShell, DNS record management (Internal & Public), DHCP Scopes, reservation, WSUS aprovals and deployment of Windows Updates. SCCM 2012 create and deploy new Applications, WSUS Maintenance and monthly updates, IIS 6/7 administration, MS-SQL 2005/2008 DB management & backups, SharePoint 2003/2013, File Server, Printer server, Hyper-V.
  • Microsoft Exchange 03/07/10/13/16 configuration, administration and troubleshooting in High availability environment with Multiple CAS servers, Load Balancers, DAG Mailbox Storage Servers, F5 Load Balancer LTM and GTM configuration. Experience with Cisco IronPort Spam Gateway
  • MS Office365 Implementation, administration and migrations. Managing over 3000 Mailboxes, Hybrid and Cloud environment experience. 4 Successful migrations from Hosted Exchange 03/07/2010. Office 365 Exchange/SharePoint/Skype for Business Administration, configuration and troubleshooting for AD SYNC, Dual Factor Authentication, management of MX, TXT SFP records. ADFS, SMTP mail-relay setup. PowerShell reports and License management.
  • Linux Server administration. With CentOs and Redhat 6/7 Setup new Enviroments for Open Source Applications, configure Linux features and testing Tools, setting PBIS AD authentication and Configuring and troubleshooting Linux distributions including CentOs and RHEL.
  • VMware ESX Vsphere 5/6 Server: configuring and managing virtual environment with ESX 4.X/5.X/6 . P2V migrations, V-motion and Patch ESX blades, HA & DR setup. Cluster configuration, VM maintenance and troubleshooting.
  • VMWare Horizon 6.0 Desktop virtualization - VDI Pool creation, create and Update golden images, troubleshoot VDI Link Clones, troubleshooting and maintain VDI Production environment.
  • Backup and Disaster Recovery Administrator: Designing, implementing and troubleshooting Symantec Backup Exec 2012, Shadow Protect, Arc Serve, GFI-Mail Archiver, Barracuda Cloud Backups.
  • Managed workstation and server virus/spam protection with Trend Micro Office Scan, Trend micro Deep Security Management Agent less deployment with V-shield integration), Symantec End Point.
  • Manage and maintain Telephony, web-conference and Unified Communication systems for multi vendors (VOIP and PBX systems) including Mitel, NEC, Avaya and Toshiba.
  • Configure and Support corporate VPN, systems for remote access (juniper SA, Cisco ASA, SonicWALL NS).
  • Architect, design and work with vendors to deliver IT projects that meet technical and company goals.
  • Cisco ASA, Juniper SSG series, Juniper SA 2000, SonicWALL NSA firewalls. Barracuda Spam filter. Load Balancers. Installation, administration, licensing, Policies, NATs, VPN tunnels, SSL-VPN, Fail-over troubleshooting.
  • Public DNS records management (TXT, SPF, MX, CNAME). Authenticode Certificates renewals, SSL Certificates. Google Apps for business management, Wildcard certificates,
  • Meraki and Cisco Access point configuration and administration.
  • Network monitoring tools configuration & administration as Solar winds, Zabbix, Spiceworks, PRTG, InSider, SonicWALL reporting services, Kaseya, Wireshark, putty, etc.

PROFESSIONAL EXPERIENCE:

Confidential, Reston, Virginia

Senior System Administrator

Responsibilities:

  • Responsible for design, Architect and implement Office 365 migration On Hybrid Environment with MS Exchange 2010. Setup Office 365 Governability for Azure/AD/Exchange Online/One Drive/Security Compliance. Troubleshoot Issues related to Mail flow with Cisco Iron Port, CAS arrays, SMTP relays, SPF records, Remote Mailboxes, DLs, etc. Advance PowerShell Scripting to manage Cloud Exchange, Azure, Ad objects changes, attributes, reporting, Licensing, etc.
  • Responsible for Administration of Windows 2012/2016 AD infrastructure including AD certificate Services, ADFS, DirSync, Single Sign on, public and internal DNS records, DHCP reservations & conflicts, site to site replication, Active Directory desired state configuration, Enhanced Group Policy management (EGPO), Integrate MFA(Multifactor Authentication) with DUO for Office 365, OKTA, and third party applications with SAML 2.0
  • Advance PowerShell scripts for management of AD, Office 365, Azure, Exchange, One Drive, including cleaning, reporting, modifying, removing AD objects and security groups, mailboxes, DLs, Office 365 licensing, Architect and design and implementation of MS Azure POC.
  • Support VMware environment with ESX 5.5/6.0 infrastructure,Setup new ESX host, VMs and templates, upgrade Vcenter and ESX host. Implement single sign-on, P2V migrations, VMware PowerCLI scripting, Worked with multiple storage vendors. (NetApp, Kaminario, Nimble, Synology).
  • Administrating and troubleshooting Cisco UCS blades, HP C7000 enclosures and Dell VRTX blades. Installing Firmware upgrades, Raid configuration, connectivity issues, hardware RMAs.
  • Administrating Corporate Applications including: ESET Antivirus Servers and policies, Netwrix Auditor Server, Secret server(Thycotic) privileged password management tool, PoliteMail Server Marketing team, F5 Load balancers (pools, VIPs, Apps), Cisco UCS administration. DNSmadeeasy public records.
  • Experience working with RHEL and CentOs build ups, for Open Source Application, Proof of concept for new projects on Linux. Patch management with WSUS. Setup snmp monitoring system with and Zabbix.

Confidential, Washington, DC

IT Infrastructure administrator

Responsibilities:

  • Responsible for maintaining IT infrastructure in Datacenter environment. Supporting 2500+ users in and Window and Virtual Server/Desktop environment. Windows Server administration including 2003/2008/2012 Active directory, Group Policies, DNS, DHCP, WSUS, SCCM 2012, Office 365 Hybrid environment administration.
  • Responsible for Office 365/MS Exchange 2013 hybrid environment (Exchange, SharePoint and Skype for business).
  • Troubleshooting ADFS, DirSync, Licensing, User administration, Public DNS records. Administration with PowerShell scripts for Licensing, Migration, reports, Permissions, Mailbox Usage, message Tracing, etc. AD DirSync, ADFS, server administration.
  • Support VMware ESX 5.5 infrastructure for Highly Available Environment in Data Center environment including ESX host installs, VCenter administration, VM template creation, VM deployments, P2V, V-motion, Data storage administration, Trend Micro Deep Security administration and integration with VM tools for silent agent on Virtual Server environment.
  • Maintaining and deploying VMware Horizon Virtual desktop environment (VDI) Link clone and dedicated VM creation, Link clone Pool creation, VM horizon Server administration. Thinapp creation and troubleshooting.
  • Maintain and configure SolarWinds IPAM, NPM and Server Application Monitor. Experience with Microsoft SCCM 2012 image deployment, Software library and patching tools.
  • Cisco UCS 2.1 management (Blade environment) with multiple remote sites, Brocade Fiber switches, SAN EMC storage (VMAX, VNX and Atmos).
  • Imprivata 5.0 administration. Imprivata appliances, Application manager, Console updates and user management.

Confidential, Falls Church - VA

Network/System Administrator

Responsibilities:

  • Network and System administrator providing support for 100+ users. Administer Windows 2003/2008/2012 Servers including Active directory, Group Policies, DNS, DHCP, IIS 6/7, MS-SQL 2005/2008, SharePoint 2010, WSUS, File Servers, Hyper-V. Office 365 Migration and administration.
  • 90% Virtual environment with VMWARE ESX 4/5 servers. Design, implement and maintain Virtual Servers Environment. P2V migrations, New OS Virtualization, creating Templates, Snapshots and Virtual Storage management. Support and troubleshoot VMware ESX Host, VMs, Storage, Networking including windows 2000/2003/2008 and Linux servers (Ubuntu LTS, CentOS & Fedora).
  • Supporting Financial, Sales and operation applications as Great Plains Dynamics Solomon, FRX reporting, SaleslogixNetwork administration with Cisco ASA 5512, Juniper SSG20s and Barracuda Spam Filter systems.
  • Monitor Network using tools as PRTG and Zabbix. Manage and Maintain On-site Telephony & Web Conference system with Unified communication System.
  • Utilize network monitoring software to ensure timely alerts and response to network issues.
  • Maintain Backup and disaster recovery system.
  • Configuring and troubleshooting Backup Exec 2012, Backup exec 9, Storage Craft Shadow Protect (VM backups), and GFI Mail Archiver.

Confidential, VA

Windows Network Operations/Datacenter Engineer

Responsibilities:

  • Supported a Windows 2000/2003 Servers Environment, providing System administration and Hardware support for the University Data Center including server deployment, VMware ESX administration and Server administration of large enterprise organization.
  • Troubleshooting and supporting technical issues with Windows servers and Dell hardware.
  • Creating, configuring and maintaining VMware ESX 3.X server environment.
  • Converting and creating new virtual machines for Windows team.
  • Diagnosing and troubleshooting hardware related problems with our Dell server blades and Datacenter Server equipment.
  • Remedy ticket system, Investigate, analyze, define, and correct hardware, software, and environmental problems in order to effect accurate and timely solutions.

Confidential, Washington, DC

Desktop Support Engineer

Responsibilities:

  • General responsibilities include managing a team of 5 Desktop support Engineers, implementing a large PC deployment project using cloning tools like Altiris Server and supporting internal desktop support, implementing and managing new pc deployment using Altiris Server and supporting Desktop support team with Profile migration and User Desktop Support.
  • User backups, email configuration with GroupWise email server, printer server configuration and Deployment using GPO’s.
  • Novell client configuration, joining users into the Hospital domain, configuring local and network printers for systems with Windows XP and Novell.
  • Install and troubleshoot medical applications for hospital operations including: Medisoft, Invision SMS, Surgimed, Softmed, Onbase, Azyxy, ODBC database connections.
  • Medical Equipment & Network connection integration.
  • Supporting L3 Service desk for Executives and directors.

Confidential, Dulles, VA

IT Desktop Support

Responsibilities:

  • Worked effectively on a team to provide support to management in prioritizing computer hardware and software. Evaluated, test and identified problems with new applications and current hospital IT equipment.
  • General responsibilities include installing, upgrading, replacing Computer components and imaging and custom configuration of systems with Windows 2000/XP Professional, Red Hat Linux 7.3/8.0/9.0.
  • Responsible for the installation, configuration, troubleshooting and repairing of many different types of laptops and desktops, including Dell, Compaq, HP, IBM, Mac, and Sun Systems. Responsible for testing of new applications, hardware, and software within the domain.
  • Accountable for special projects which include setting and creating computer labs for training and seminars.

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