Mark DeGroot

Experience

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  GPC Computers

  Feb 1998 - Mar 2004

  Technical Sales Manager

  Designed and built custom gaming and workstation PC'sRepaired and troubleshot Windows desktop systemsWorked with customers to recommend IT hardware products and Microsoft licensingManaged team of IT hardware salespeople

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  Betten Auto Group

  Mar 2004 - Mar 2015

  IT Manager / Systems Administrator

  Supported 400+ staff across 8 locations.Designed, implemented and supported Windows server, Linux server, desktop, and networking systems for a rapidly expanding group of car dealerships.Secured, implemented, compiled, and maintained publicly facing Linux based mail, web, and name servers.Provided excellent help desk support via phone, email, and chat. Remediated escalations from team.Maintained hardware refresh schedule, recommended and procured hardware, and completed migrations for all firewalls, Cisco routers, Cisco switches, desktops, servers, and other equipment.Configured, deployed, and maintained Shoretel / Mitel VOIP phone systems for multiple sites.Secured outbound internet for all sites using egress filtering, IPS, Gateway AV, Application control, content filtering, and proxied services.Performed email migrations to Google WorkspaceDesigned and implemented WAN technologies, such as SDWAN, IPSEC VPN, and dedicated point to point connections.Designed multiple campus-wide fiber networks with spanning tree switch link failover and VLAN's.Designed and implemented campus-wide multi-site active directory.Researched and implemented dealer specific technologies and DMS systems to provide best in class IT services.Maintained and managed all dealership vehicle diagnostic equipment for over 13 vehicle manufacturers.Maintained and managed multiple DMS systems (Dealer Management Systems), including CDK, R&R, Auto/Mate, and DealerTrack DMS. Show less

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  Dykstra IT

  Mar 2015 - Jan 2020

  Senior IT Manager

  Dykstra IT Merged with Quantum Leap in 2020, see Quantum Leap.

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  Quantum Leap

  Jan 2020 - Dec 2022

  Senior Information Technology Manager

  Provided friendly and professional Windows server, desktop, and network support to over 90 local businesses.Received over 425 customer surveys this year with 100% of the results completely satisfied.Configured, maintained, and secured RMM (Remote monitoring and Management) systems.Designed and configured wired and wireless networks with multiple VLANs, firewall redundancy and multi-wan.Active Directory design, implementation, and troubleshooting.Maintained and configured virtual machines and hosts on multiple platforms including VMware and Hyper-V.Maintained, configured, and upgraded Mitel Director VOIP phone serversImplemented multi-factor authentication (MFA) with O365, Azure, Google Workspace, Active Directory, and VPN networks.Completed local AD to Azure AD / SharePoint migrationsConfigured and maintained SSO and SAML based credential management systems.Installed and secured remote desktop gateway servers.Worked with multiple EDR and SIEM systems.Configured and monitored local and cloud based backup systems and verified bare metal restore capabilities.Created technical documentation used by support team for all clients.Recommended and refreshed hardware including servers, desktops, laptops, firewalls, and other networking equipment for clients. Led hardware migration projects.Created and maintained deployment images for new Windows systems.Led IT managed services team of 6 and remediated escalations. Show less

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  Courtesy Chrysler Dodge Jeep Ram

  Jan 2023 - now

  IT Manager