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Senior Systems Administrator Resume

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Easton, PA

SUMMARY:

  • Approximately 20 years’ experience with Windows Systems, Active Directory, Network and Exchange Administration.
  • Twenty years’ experience in website design, web server administration, and maintenance.
  • Twenty years’ experience providing Tier 1/2/3 support for Windows Operating Systems (Server and Client), Active Directory, Exchange, and Disaster Recovery systems.
  • Extensive experience in upgrading, transitioning and migrating mixed network environments specifically Windows earlier versions and Novell Networks to up - to-date versions of Windows and Active Directory.
  • Insightful, results-driven IT professional with success directing a broad range of corporate IT initiatives while participating in planning, analysis and implementation of solutions in support of business objectives.
  • Hands-on experience leading all stages of system development efforts, including requirements definition, design, architecture, testing and support.
  • Proven expertise in supporting and optimizing performance of workstations, servers, virtual environments, peripherals, networks, operating systems, hardware, and software.
  • Extensive experience in providing service-focused technical support - both onsite and remote - to achieve effective troubleshooting, efficient resolution of issues, and maximum customer satisfaction.
  • Able to quickly grasp and adapt to new concepts, technologies, and environments.

TECHNICAL SKILLS:

Platforms: Windows 9x/NT/2000/XP/Vista/ 7/8/ 2003/2008/2012, Red Hat Linux 5/6/7

Networking: TCP/IP, Telnet, FTP, DNS, WINS, SMTP, POP3, Novell, IPX/SPX, Ethernet, FDDI, VPN, Cisco Routers and Switches, Cisco ACI, Bay Networks Routers and Switches, Black Box, Netgear, Linksys, Cat5/6 Cabling, Fiber Optics, RF Devices

Administration: Active Directory, Active Directory Federation Services (ADFS), SSO (Single Sign-On) Solutions and Integrations, Exchange 2003/2007/2010/2013, Lync, Office 365, Lotus Notes/Domino, SANs, TSM, Disaster Recovery, NAS, Backup Exec, CA ARCserve, NetApp, CommVault, Web Architecture, IIS Web Servers - IIS 5.0/ 6.0/7.0/7.5/8.0/8.5, VMware ESXi, Hyper-V, Citrix, Blackberry Enterprise Servers, Symantec Enterprise Vault and Endpoint Protection, Systems Center Configuration Manager, Systems Center Operation Manager, Sharepoint, Microsoft Office all versions

Additional Skills: Windows Powershell, VBScript, IP Packet Analysis (Ethereal, TCPDUMP, NTOP), Intrusion Detection (Snort/ACID), Database Administration, Infrastructure Design and Implementation, Web design, Perl, XML, SAML, CSS, HTML, XHTML, PHP, Java scripting, Adobe Dreamweaver, Adobe Illustrator, Adobe Photoshop, GIMP, Animatron

Open Source CMS: Drupal, Joomla, MODX, Concrete5, Wordpress, custom CMS

Hardware: Dell, IBM, HP, EMC, Cisco, Lenovo, Custom Built Servers

PROFESSIONAL EXPERIENCE:

Confidential, Easton, PA

Senior Systems Administrator

Responsibilities:

  • Administration, maintenance, and troubleshooting of multiple Windows 2003/2008/2012 servers, Linux CentOS/RHEL in mixed VMWare and physical environment
  • Network troubleshooting on Cisco and CheckPoint devices - routing, firewall, security gateway, VLAN configurations, VPN administration
  • Design, planning, configuration of new infrastructure involving servers, applications and Active Directory structure
  • Tasked with assisting in total infrastructure containment, evaluation, remediation, and reconstruction.
  • Assisted in establishing connectivity of target environment with Cisco ACI fabric using Nexus 9000 series.
  • Provided support for transition of hosted SAP environment to on-premise administration and established original hosted environment as failover in case of disaster.
  • Provided support to multiple network circuit upgrades improving WAN connectivity and assisted in migrating original environment to target environment for production reducing downtime.

Confidential, Allentown, PA

Windows Systems Engineer

Responsibilities:

  • Administration, maintenance, and troubleshooting of multiple Windows 2008/2012 servers, Active Directory sites, and IIS Web Servers (IIS 6.0/7.0/7.5/8.0/8.5 )
  • Designed separate SSL PKI Architecture for highly secure environment to meet NERC CIP v5 regulations, Enterprise User Security, SSO (Single Sign-On) using ADFS
  • Designed corporate Enterprise SSL PKI Architecture to upgrade all SHA1 certificates to SHA2 and further secure environment for internal communications - this included over 1000 virtual servers, approximately 600 physical servers, and over 500 network appliances and devices.
  • Maintained and helped manage VMWare virtualized environment of over 1000 virtual servers - both Windows and Linux servers

Confidential, Columbus, OH/

Independent Contract IT Consultant

Responsibilities:

  • Directed and managed client care department, supervising help desk personnel
  • Designed and configured servers for website hosting - administering and managing IIS 5.0/6.0/7.0 for over 1000 servers
  • Managed IIS web servers and the websites hosted on them, along with managing the Active Directory, Terminal services, DNS, installing 256 bit secure Digital SSL Certificates and binding their dedicated IP addresses to the same.
  • Architected, designed and implemented SAML and symmetric key based SSO (Single Sign-On) service provider systems
  • Managed PKI account for Symantec SSL certificates and assisted clients with installing SSL certificates on their servers and devices.
  • Designed and built internal knowledge base for technical support and technology staff.

Confidential, Coopersburg, PA

System Administrator / Quality Assurance Engineer

Responsibilities:

  • Software and product testing, analysis, and troubleshooting on advanced lighting systems. Assisted in development of automated testing procedures and programs. Administered virtualization environments for testing across multiple platforms and mock scenarios for various customers. This included conducting technical risk evaluations of hardware, software, and integrated lighting systems based on customers’ custom designs to ensure protection strategies are properly implemented and working as intended.
  • Drafted and implemented test plans and procedures for testing mobile app developed for iPad/iPad Mini designed to control lighting and shades through proprietary lighting system.
  • Assisted in application development and coordinated testing of proprietary lighting system software integration with Windows 2008 and Exchange 2007/2010 servers - this involved the administration of multiple Windows 2008 Active Directory sites, IIS Web Servers (IIS 6.0 and 7.0) and Exchange 2007/2010 environments across several company locations throughout the country.

Confidential, Asbury, NJ

Sr Systems Network Administrator

Responsibilities:

  • Designed, planned and administered migration of entire network spanning multiple sites from mixed Windows NT 4.0 and Novell Network to Windows 2003 w/Active Directory, then upgraded to Windows 2008 - designed, planned and upgraded Windows 95 workstations to Windows XP, Vista and 7.
  • Designed, planned and administered migration of mixed messaging environment of Exchange 5.5 to Exchange 2003, then later upgraded to Exchange 2007 for email communications in conjunction with network operating system migration.
  • Designed, configured and administered IIS Web Servers for enterprise. Designed PKI architecture and configured SSL Certificate Authority structure for issuing and maintaining internal certificates for approximately 500 servers
  • Planned, designed and implemented Disaster Recovery System that ensured data redundancy, minimal downtime during outages and disruptions, and design of offsite data center for larger disasters or expected prolonged downtime of main data center. Implemented tape rotation/backup system and server virtualization to maintain consistent data center uptime and data redundancy as part of Disaster Recovery System.
  • Installation and maintenance of Blackberry Enterprise servers for mobile communications tied in to company Exchange email system.
  • Migrated Frame Relay network infrastructure to MPLS Network, installation of fiber optic cabling for data center and plant communications to accommodate replication to backup data center for Disaster Recovery System. Administered and maintained all network routers and switches throughout entire company.
  • Provided Tier 2 and 3 support for workstations, servers, networks, hardware and software for main office, remote offices, and plants located throughout country and globally, remote support for sales force and employees telecommuting thru VPN and communications via Blackberry devices.
  • Provided technical leadership to the enterprise for the information security program.
  • Installed and maintained security infrastructure, including IPS, IDS, log management, and security assessment systems.
  • Performed and created procedures for system security audits, penetration-tests, and vulnerability assessments.
  • Installed, configured, administered and maintained company intranet. Integrated calendaring/scheduling from Exchange with intranet thru EWS API.
  • Administered and maintained TrackIT help desk ticketing and asset management system - migrated system to Spiceworks administered in-house.

Confidential, Wilmington, DE

Technical Coordinator II

Responsibilities:

  • Tier 1 and 2 support for workstations, servers, network, hardware and software. Assisted in migrating Novell network to Windows 2000.
  • Assisted in recabling existing network to Cat5e. Installed, terminated and tested new cabling for expansion of court to more floors in building.
  • Set up Cisco routers and switches to accommodate the expansion of the court to more floors in the building.
  • Assisted in migration of outdated intake form and paperwork processing methods to federal government mandated Case Management and Electronic Case Files (CM/ECF) system for providing easier filing and access to court records and documents for the public.

Confidential, Newark, DE

Information Technology Specialist

Responsibilities:

  • Tier 1 and 2 support for workstations, servers, hardware and software.
  • Assisted in migrating from mixed Windows NT 4.0 and Novell network to Windows 2000.
  • Administered and maintained company intranet and web server.
  • Administered and maintained company email on Lotus Notes.
  • Assisted in preparation, transition, and update of all hardware and software for Y2K compliance.

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