Dustin Sheffer

Experience

• 

  Gettysburg Area School Dist

  Nov 2008 - Jan 2013

  Desktop Support Technician

  • Active Directory Users and Computers Management• Maintain nightly and week-end backups using Symantec Backup Exec• Create and maintain various client machine images and software packages using Altiris Deployment Solution• Administer VoIP phone system; programming changes, mailbox creation/management, new user set up• Resolve Tier II support requests, helping the teachers with in-classroom technology• Manage network wide printer script; additions, changes, deletions• Provide hardware and software support including printing, installation, word processing, electronic mail, and operating systems• Installing and configuring new hardware/software, including transferring data from old computer to new• Maintain up to date inventory of company hardware Show less

• 

  OSS Health

  Jan 2013 - Sept 2014

  Help Desk Rep II

  • Active Directory Users and Computers Management• Installing and configuring new hardware/software, including transferring data from old computer to new• Add/delete/modify user account information, resetting passwords• Creating and managing network shares and user logon scripts• Debug and analysis of hardware and software failures• Provide hardware and software support including printing, installation, word processing, electronic mail, and operating systems• Create user accounts and provide end user support for all Electronic Medical Record software within the Practice; Medent EMR, CPSI EMR, Vision EMR• Handle all incoming email and phone tickets• Maintain company intranet site• Maintain up to date inventory of company hardware and software• Provide support and training for junior employees within the department• Oversaw the company’s Windows 7 migrations• Worked with a colleague to completely restructure the domain’s GPO Show less

• 

  A&S Kinard, A Celadon Company

  Sept 2014 - Jun 2015

  Systems Administrator

  • Management of all network domain services; Active Directory, Group Policy, DNS, DHCP• Creation and management of VM Servers using Citrix XenCenter• Creation and management of virtual applications using Citrix XenApp• Monitor the health and functionality of all servers• Administer and maintain company Exchange 2010 environment• Management of the company’s Cisco VoIP phone system• Manage PHD Virtual Backup System• Provide hardware and software support including printing, installation, word processing, electronic mail, and operating systems support to all company, and affiliated, employees via email and phone• Management of LabTech Remote Monitoring and Management system• Manage and maintain all company mobile devices• Provide training on various systems to new employees• Work with third party vendors on troubleshooting escalated issues• Participate in on-call rotation for after hours support Show less

• 

  CPRS Physical Therapy

  Jun 2015 - Apr 2016

  IT Specialist

  • Management of CommVault backup solution• Management of all network domain services; Active Directory, Group Policy, DNS, DHCP• Management of company SharePoint 2010 site• Creation and management of virtual desktops/servers using Citrix XenCenter• Configuration of company Cisco Meraki devices• Administration of company Exchange 2010 environment• Set up new office locations; configure new PC’s, user accounts, printers, network devices, cabling• Maintain company website• Provide hardware and software support including printing, installation, word processing, electronic mail, and operating systems support to all company, and affiliated, employees via email and phone• Assist with the research and purchase of new company software/hardware Show less

• 

  Select Medical

  Apr 2016 - now

  • Management of Forescout NAC environment. Creating control/compliance policies to block unauthorized devices from connecting to the network, performing upgrades, installing patches• Management of company PKI using AppViewX CERT+ certificate lifecycle management tool, using certificate auto-renewal to ensure mission critical applications do not go down due to expired certificates• Group Policy Object Management across the enterprise; creating and testing new GPO’s, acting as point of contact for Group Policy related issues• Management of Workspace ONE and MobileIron MDM solutions; defining security and compliance configurations for devices, performing upgrades, building out new use-cases• Administration of PRTG monitoring tool; creating new probes, configuring sensors, performing environment upgrades• Administration of Serv-U SFTP environment; performing upgrades and installing patches• Creation and management of VIPs on Citrix NetScaler Show less • Diagnose, investigate, and troubleshoot issues reported to the network teams• Configure Cisco routers, switches, and access points for new clinic startups and break/fix issues• Worked on proof of concept to implement a new guest wifi solution for both inpatient and outpatient divisions• Evaluate problematic data circuits and upgrade/order replacement circuits as needed• Provide support and training for regional suppport teams and help desk members• Update and maintain internal database of all outpatient/inpatient sites and their network configurations• Provide after hours support to ensure hospital networks have 24/7/365 availability Show less • Provide support for Citrix and VMWare environments; creating/managing applications and servers• Perform monthly enterprise-wide patch management for desktop machines• Manage company’s print servers; adds/changes, migrations, configuration• Act as queue lead for ticket distribution/resolution, as well as routing incoming tickets to the appropriate queue as needed• Provide on-site support for new hospital acquisitions; setting up new equipment and providing after go-live support• Troubleshoot network issues at clinics and hospitals including, routers, network switches, wireless access points, and contact ISP’s for outages as needed• Worked on a team of four to complete the corporate refresh project• Act as point of contact for divestiture cutovers from the Select network; wiping router configurations, removing PC’s from domain, and resetting Access Points Show less

  • Security Engineer

    Feb 2025 - now

  • Security Analyst 2

    Sept 2022 - Feb 2025

  • Security Analyst

    Jan 2021 - Feb 2025

  • Network Analyst

    Jan 2020 - Jan 2021

  • Systems Support Analyst

    Nov 2019 - Jan 2020

  • Senior Systems Support Specialist

    Apr 2016 - Nov 2019