Sean Casey

Systems Administrator –Shared Services Canada (DND, Statistics Canada, Global Affairs Canada, CSC) at HubSpoke, Inc.
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Location
Greater Ottawa Metropolitan Area, CA
Languages
  • English Full professional proficiency
  • French Limited working proficiency

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Experience

    • Canada
    • IT Services and IT Consulting
    • 1 - 100 Employee
    • Systems Administrator –Shared Services Canada (DND, Statistics Canada, Global Affairs Canada, CSC)
      • Sep 2019 - Present

      - Worked with NHQ BSSO Team to provide end user support for specialized applications - Supported the implementation of an updated new security systems for NHQ - Implemented New Communications Platform for the NHQ and Regional Operations - Maintained and created required documentations for future references for the department - Supported Windows Servers 2008/2012/2016, Windows 7/8/10 OS and various enterprise software in an environment with approximately 1000 servers and over 100000 workstations internationally - Administered various versions of SCCM (2007 to Current Branch), multiple instances in each department - Created deployment packages new and updated enterprise desktop and server applications - Deployed and created Software Update Packages - Configure and manage Cisco VPN Client - Installed, configured and supported Apache and maintain Oracle, MS SQL and Lotus Notes databases - Responded to Help Desk tickets using Assyst assigned to the Operations Team - Configured Veritas tool which was used to perform backups and recoveries - Developed, modified and tested custom PowerShell scripts according to client requirements - Tested deployed packages before submission to live environment - Prepared various weekly reports for senior management - Migrated regional locations to newer versions of SCCM, and decommissioning of older versions. Show less

    • United Kingdom
    • Defense and Space Manufacturing
    • 700 & Above Employee
    • Systems Administrator - Marine and Air
      • Jan 2018 - May 2019

      • Responsible for implementation (install, administer, configure), support (monitoring, troubleshooting, performing backups/restores) and upgrades of Windows Server 2008/2012/2016. Determining business objectives and technical incidents was part of the process. • Administrated, operated and maintained more than 1,000 workstations • Providing 3rd level support/troubleshooting, maintained software requests and software patch updates via Microsoft’s SCCM 2012 • Provided 3rd level support for MDT troubleshooting, BitLocker, PowerShell, drivers and BIOS configurations • Developed, modified and tested custom PowerShell scripts according to client requirements • Developed, tested, modified and documented custom action and built-in action Windows 10 Operating System Deployment task sequences in SCCM 2012 for user and settings migration, image capture and deployment and running Configuration Manager actions. Analyzing business requirements and technical incidents was part of the process. • Scripted custom BIOS configurations for task sequences in SSCM 2012 • Managed users, groups, group policy and Active Directory, MS Certificate Server, (PKI), Group Policy, configured and administered TCP/IP, DNS, DHCP, Networking, WSUS, SCCM 2012, monitoring and troubleshooting • Provided performance management which included: monitoring, analysis, evaluation, tuning and reporting of the Microsoft Windows Servers 2008/2012/2016 using built-in MS Windows troubleshooting tools. • Administered the MS 2010 Exchange environment • Administrate and Manage VMWare 100 plus virtual Servers • Maintained VPN access for 500 plus users with use of SAFENET. • Performed daily and weekly backups using Commvault and Backupexec • Manage and maintain Data Centre in both Montreal and Ottawa, with hardware installations and troubleshooting with vendors. Show less

    • Canada
    • Armed Forces
    • 700 & Above Employee
    • Systems Administrator
      • Jun 2016 - Aug 2017

      • Responsible for the installation, maintenance, monitoring, and ongoing support services (clustering, patching, tweaking, backups and restores) on MS Windows Servers 2008/2012/2016 for the Canadian Cadet Organization for Information Technology Support • Creation and maintaining of Network Accounts for 10,000 plus persons. Analyzing business requirements and technical incidents was part of the process. • Responsible for assessing performance of Windows Servers 2008/2012/2016 by conducting monitoring, analysis, evaluation, tuning and reporting activities • Monitored and reported server security infractions. • Responsible for analyzing Windows Server 2008/2012/2016 performance and tuning and resolved day-to-day operation issues • Developed, created, tested, modified and provided troubleshooting support for custom PowerShell scripts • Developed, tested, modified and documented Windows 2003/8.1/10 Operating System Deployment task sequences in SCCM 2012 • Veritas was used to perform backups and recoveries Show less

    • Canada
    • Government Administration
    • 700 & Above Employee
    • Systems Administrator - Department of Transport
      • Feb 2016 - Mar 2016

      • Provide support (manage, configure, analyze, troubleshoot and maintain) Windows Servers 2000/2003/2008. Monitor, assess, patch/enhance and report performance. • Administered end-user computer accounts and service administration using Active Directory • Document practices and procedures used in support of the systems and applications, • Commvault was tool utilized for backups • Clean Active Directory of old or disabled objects, user and computer accounts that no longer correspond to actual physical users software installations, upgrades and patches of Windows, AD and Domain Controllers • Provide technical solutions and implementation methods including the provision of high quality documentation such as but not limited to the development and maintenance of Standard Operating Procedures (SOPs), System Administration Manuals and help texts • Monitor and verify the health of services such as but not limited to AD replication, DNS, WINS, Domain Controllers, inter and intra-site directory replication and perform scheduled backups and restores when necessary • Review and document system change requests in the form of a Request for Change (RFC), which may affect the support and/or configuration of AD • Administered SCCM and WSUS for the purposes of reporting, trouble shooting, and deployment of mandatory patches/security updates. • Scripting and automation of various tasks for analysis, reporting, incident remediation, etc, mainly using PowerShell • Detect and resolve system deficiencies by using automation and early warning capabilities such as but not limited to Microsoft System Center Operations Manager (SCOM) 2007 Show less

    • United States
    • Software Development
    • 1 - 100 Employee
    • Systems Administrator
      • Aug 2015 - Jan 2016

      • Supported and maintained all existing Windows servers 2000/2003/2008 including performance analysis, server tuning, patching, backups and restores. Responsible for installation and resolving issues with day-to-day operation. • Performed backup, recovery and restore procedures in Windows Server 2000/2003/2008 environment using Backupexec • Administered end-user computer accounts and service administration using Active Directory in a Windows Server 2000/2003/2008 environment • Planning, deployment and maintaining a New Microsoft Exchange 2013. Had to recover/rebuild the same for customer as their customer had made some unfortunate changes. • Backupexec was used to perform backups and recoveries • Worked with various end users and/or stakeholders along with consultants and Microsoft Engineers to identify business needs and technical incidents for the planning, configuring, installing and implementation of SCCM • Used MS SCCM and WSUS for deployment, patching and monitoring of network assets. • Created, tested and modified custom PowerShell scripts to generate reports and documents to support the compliance and completion of mandated updates. • Upgraded Windows Servers: 2003 to 2008, 2003 to 2012, 2008 to 2012 Show less

    • Systems Administrator - Department of Fisheries and Oceans, Health Canada
      • Nov 2014 - Jul 2015

      • Provide support (manage, configure, analyze, troubleshoot and maintain) Windows Servers 2000/2003/2008. Monitor, assess, patch/enhance and report performance. • Performed backup, recovery and restore procedures in Windows Server 2000/2003/2008 environment using Veritas • Solarwinds was used for Ticket / Change request tracking and monitoring • Administered end-user computer accounts and service administration using Active Directory in a Windows 2000/2003/2008 environment • Experience with networking, and deployment of Virtual Environments, supporting of a Windows 2000 VM built specifically for a Windows 2007 System • Used MS SCCM and WSUS for deployment, patching and monitoring of network assets. • Created, tested and modified custom PowerShell Scripts to generate reports and documents to support the compliance and completion of mandated updates. • Experience with networking, and deployment of Virtual Environments, supporting of a Windows 2000 VM built specifically for a Windows 2007 System • Conducted application implementation, updates, deployments and maintenance within the Citrix Environment. Provided end user training and status reports to management. • Working with GoC Secure Remote Access Show less

    • Systems Administrator
      • Sep 2013 - Aug 2014

      • Performed frontline systems administration and desktop support for clients representing organizations outside of DIMEUS, across all of DND/CAF, including but not limited to: ADM(IM), AD(Fin), ADM(Mat), ADM(HR-Civ), ADM(IE), ADM(PA), ADM(S&T), RCAF, Army, RCN, CANSOFCOM, CFINTCOM, CJOC, CMJ, DM, JAG, MPC (CMP), SJS and VCDS, affecting up to 100,000 users. • Provide support (manage, configure, analyze, troubleshoot and maintain) Windows Servers 2000/2003/2008. Monitor, assess, patch/enhance and report performance. • Performed backup, recovery and restore procedures in Windows Server 2000/2003/2008 environment using Veritas • Experience with networking, and deployment of Virtual Environments, supporting of a Windows 2000 VM built specifically for a Windows 2008 System for the Air Forces Black Box reporting System. • Administered end-user computer accounts and service administration using Active Directory in a Windows 2000/2003/2008 environment • Provided VPN and secure remote access for various clients for both systems non WI-FI and WI-FI Systems soon after the policy was implemented to DND using PKI and Cisco Tunneling. • Systems were monitored using SCCM and EITSM (Assyst) • Used MS SCCM / WSUS for deployment, patching and monitoring of network assets. • Perform server maintenance and configuration via scheduled PowerShell scripts. • Participated in the deployment of 1000 plus new PC’s in preparation for the deployment of Windows 2007 OS. • Working with GoC Secure Remote Access. • Provided hardware and software support within a GoC Windows environment on a LAN (Local Area Network). Installed, configured and provided troubleshooting support for clients for their software applications; specifically, MS Office Suite 2000 / 2003 / 2010. Also provided software support to clients by installing, configuring and troubleshooting Windows operating systems such as DOS, Windows 2000, XP and Win7. Show less

    • Canada
    • Hospitals and Health Care
    • 1 - 100 Employee
    • Systems and Network Administrator
      • Jul 2012 - Aug 2013

      • Provide installation, support, troubleshooting, and maintenance Windows Server 2000/2003/2008. Monitor, assess, patch/enhance/tune and report performance. • Created and executed backup, recovery and restore procedures in Windows Server 2000/2003/2008 environment using Acronis • Systems were monitored using SMS (Systems Management Server) • Administered end-user computer accounts and service administration using Active Directory in a Windows 2000/2003/2008 environment • Perform backup and restore procedures within a Windows Server 2003 - 2008 environment • Worked with various end users and/or stakeholders along with consultants and Microsoft personnel in the planning, configuring, installing and implementation of MS Office, MS SCCM and MS Windows • Used MS SCCM and WSUS for deployment, patching and monitoring of network assets. • Supported MS Office 2000/2003/2010 office automation suite • Liaised with end users and stakeholders and Citrix personnel in the to review business objectives and technical issues prior to architectural planning and implementation of Citrix architectural planning and implementation of Citrix. • Deployed Citrix services to offices remotely in organizations with 1000 plus clinicians, nurses, and staff for the Champlain LHIN – (Local Health Care Information Network) for both local and remote users. Helped with developing the technical provisions and coordinate the deployment process. • Worked with network architecture - Applied Device Configuration for connectivity; Open, Close, Monitor Network Traffic; Gave instruction to users for remote access (RDP, Citrix, Cisco Firewall) • Upgraded Windows XP to Windows 7 and Windows Server 2003 to 2008 • Administrated MS Exchange Environment • Worked with Technologies and the Windows Hyper Virtualization of the Servers, providing global load balancing between locations and providing VPN support for clients requiring remote access to medical information using Cisco Secure Tunneling. Show less

    • Systems Administrator
      • Apr 2012 - Jun 2012

      • Provide installation, support, troubleshooting, and maintenance Windows Server 2000/2003/2008. Monitor, assess, patch/enhance/tune and report performance. • Executed backup, recovery and restore procedures in Windows Server 2000/2003/2008 environment using Backupexec • Administered end-user computer accounts and service administration using Active Directory in a Windows 2000/2003/2008 environment • Was assigned a project to investigate and implement an IT patching process for servers and workstations within their subnet of the main network of the Defence Network. • Used SMS Systems Management Services (previous utility replaced by MS SCCM and WSUS) for deployment, patching, monitoring of network assets and deployment of mandatory and security patches • Used Helpdesk management system (Magic Service Desk) to receive create, and log trouble tickets in regards to clients experience issues with either their computer software or hardware equipment (including peripherals). Update the ticketing system (Magic) with the correct data if necessary, and responding to ongoing problem tickets • Worked with network architecture - Applied Device Configuration for connectivity; Open, Close, Monitor Network Traffic; Gave instruction to users for remote access (RDP, Citrix, Cisco Firewall) and Hardware solution, configuration and implementation • Assisted with the Citrix architectural planning and implementation of Citrix services. • Experience assisting with the coordination the deployment of Citrix services to offices remotely in organizations with 1000 plus users both locally and remotely. Show less

    • Canada
    • Hospitals and Health Care
    • 300 - 400 Employee
    • Systems Administrator
      • Nov 2005 - Oct 2011

      • Managed, assesses and supported Windows Active Directory Server 2003 environment. • Maintained over 100 system file servers in Windows 2003 Network Environment and UNIX environment for over 1000 users. Provided Network, Systems Administration and help desk support for numerous healthcare related applications, desktop, financial and other end user applications. Trained end users and provided status reports to management. • Utilized Microsoft clustering technologies such as Network Load Balancing and Server Cluster to improve server availability, reliability and scalability • Installed and Maintained MS SQL Server DB Application. Provided end user access to DB interfaces. Provided Disaster Recovery guidance and solution. Planned Maintenance for DB’s including patching, and tuning. • Used SMS Systems Management Services (previous utility replaced by MS SCCM and WSUS) for deployment, patching, and deployment of mandatory and security patches • Worked with Microsoft to deploy a WSUS Server within the DMZ, maintained and trouble shot the WSUS Server within the server/workstation environment . • Created and executed backup, recovery and restore procedures in Windows Server 2003 environment using Backupexec, Commvault • Worked with Technologies and the VM Virtualization of the Servers, providing global load balancing between locations and providing VPN support for clients requiring remote access to medical information using Cisco Secure Tunneling. • Implemented and maintained various financial applications for AR & AP according to Ministry Guidelines. • Citrix architectural planning and implementation of Citrix services. Provided recommendations for the deployment of Citrix services to offices remotely in organizations with 3000 plus clinicians, nurses, and staff • Implemented and maintained new Operating Room Patient Management System with the use of Citrix • Administrated MS Exchange Environment, Upgraded from Version 5.5 to Exchange 2003 Show less

    • Canada
    • Higher Education
    • Systems and Network Administrator - Canadian Micro Electronics Corp.
      • Feb 2001 - Mar 2005

      • Citrix architectural planning and implementation of Citrix services. • Implemented and maintained a software application, Citrix MetaFrame XP • Participated in reviewing business requirements and providing various options to best deploy Citrix services to offices remotely in organizations with 1000 plus users both locally and nationally. Helped with developing the technical provisions and coordinate the deployment process. • Supporting and the development of an architecting Citrix services in an enterprise of the Universities of Canada Research Network. • Provided hardware and software support within a Windows environment on a LAN (Local Area Network). Installed, configured and provided troubleshooting support for clients in regards to their software applications; specifically, MS Office Suite 2000 / 2003. Also provided software support to clients by installing, configuring and troubleshooting Windows operating systems such as Win NT 4.0, 2000, 2003 and Win XP. Trained end users and provided status reports to management. • Worked with various end users and/or stakeholders along with consultants and Microsoft personnel in the planning, configuring, installing and implementation of MS Office and MS Windows • Supported MS Office 2000/2003 office automation suite • Managed and implemented computerized door security system for areas of office that require high security. Show less

    • IT Services and IT Consulting
    • Systems and Network Administrator
      • May 2000 - Feb 2001

      • Performed a full range of hardware, software and wiring installations. Provided tech support via help desk and onsite for various financial institutions • Engineered the installation of all furnishings and hardware requirements for operations. • Facilitated the upgrade and installation of new network and communication cabling for various client locations • Citrix architectural planning and implementation of Citrix services for various clients • Supporting and the development of an architecting Citrix services in an enterprise for various clients. • Managed the computerized security systems at both CRC’s locations. • Maintained the telephone systems and implemented an earlier version IP Telephony. • Performed help desk support for various CRC clients within North America. • Solved various hardware and software related issues with key servers within many financial • Provided various hardware and software support for both CRC corporate offices and their clients. • Administrated various Email Packages for various firms, MS Exchange to Lotus Notes. Show less

Education

  • College of Business & Technology
    Network Specialist Diploma, System, Networking, and LAN/WAN Management/Manager
    1996 - 1997
  • Franklin Covey - Time Management - Franklin Covey
    Time Management - Franklin Covey, Time Management
    2003 - 2003
  • York University
    Project Management, Time Management
    2002 - 2002
  • Napanee & District Secondary School
    High School Diploma, Technology
    1984 - 1988

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