Mark Mentzer Email & Phone Number

Clearwater, Florida

Worked with a team of 10 other people in order to secure, design, configure and implement network hardware and software solutions across over a 150 sites and agencies’ across Pinellas County Government, FL. Day to day work entailed maintain and supporting all Cisco hardware including multiple models of Cisco switches, routers and firewalls. I performed routine software, firmware and configuration updates as needed across all platforms. Special projects included replacing all hardware as it… Show more Worked with a team of 10 other people in order to secure, design, configure and implement network hardware and software solutions across over a 150 sites and agencies’ across Pinellas County Government, FL. Day to day work entailed maintain and supporting all Cisco hardware including multiple models of Cisco switches, routers and firewalls. I performed routine software, firmware and configuration updates as needed across all platforms. Special projects included replacing all hardware as it reached its’ end of life cycle and also most notably converting Cisco ASA firewalls over the new Cisco FTD firewall platforms. Show less

Tampa/St. Petersburg, Florida Area

Install, run, terminate and test fiber optic and Cat 5 / 6 Ethernet cable. Site jobs include Raymond James stadium in Tampa, New Florida College in Sarasota and the Sarasota Hotel in Sarasota, FL.

Nashville, Tn

I acted as sole team lead, managing multiple people across several different departments for a 2 million dollar SAN refresh project to remove our old out dated Cisco 2/4GB fiber-channel SAN with a brand new Brocade 8/16GB fiber-channel SAN. I was lead in every aspect of the project to include procurement, design, inventory, logistics, standing up the new equipment, cut-over from Cisco SAN to the Brocade SAN and decommissioning the old equipment. I also have created custom MAPS warning alerts… Show more I acted as sole team lead, managing multiple people across several different departments for a 2 million dollar SAN refresh project to remove our old out dated Cisco 2/4GB fiber-channel SAN with a brand new Brocade 8/16GB fiber-channel SAN. I was lead in every aspect of the project to include procurement, design, inventory, logistics, standing up the new equipment, cut-over from Cisco SAN to the Brocade SAN and decommissioning the old equipment. I also have created custom MAPS warning alerts for this system. I monitor day-to-day operations and fix all issues related to SAN connectivity/activity. We currently have approximately 3000 hosts connecting to our SAN. I also service day-to-day BLOCK, NAS, SMB and NFS operations on all our existing storage platforms which include EMC VNX7500, EMC VNX5800, EMC VMAX-10K, EMC VPLEX, EMC XtremIO, EMC Isilon and PURE M50-M70 storages arrays. I participate in 24x7 on-call rotation and I also perform routine DR tests with our DR team using Mirrorview for our EMC VNX and SRDF for our EMC VMAX platforms. Show less

Nashville, Tn

I support, configure and maintain our Juniper SA-6500 VPN controllers, our Juniper IC-4500 Infranet controllers and our Juniper SRX-3600 data center firewalls. I currently support, configure and maintain a dual-node cluster at our primary data center and a dual-node cluster at our secondary data center. I currently support and configure all server-to-server and user-to-server firewall access on our Juniper platforms for a multi-zone environment. I work directly with our Windows, Linux, Storage,… Show more I support, configure and maintain our Juniper SA-6500 VPN controllers, our Juniper IC-4500 Infranet controllers and our Juniper SRX-3600 data center firewalls. I currently support, configure and maintain a dual-node cluster at our primary data center and a dual-node cluster at our secondary data center. I currently support and configure all server-to-server and user-to-server firewall access on our Juniper platforms for a multi-zone environment. I work directly with our Windows, Linux, Storage, Oracle and SQL data base teams to craft all necessary server-to-server and user-to-server firewall policies that are needed. I use our Linux based log servers to help troubleshoot any connectivity issues by reviewing and monitoring the firewall logs. I work directly with end users to troubleshoot their Junos Pulse VPN client connection issues. I perform routine code upgrades for the Juniper SA-6500, IC-4500 and SRX-3600 in order to keep the code versions up to date. Show less

I supported and maintained the Vanderbilt University Medical Center network infrastructure including over 1200 Cisco switches, 280 communications closets and over 70,000 network nodes. I participated in 24x7 on-call rotation. I configured, managed and deployed Cisco 3550, 3750 and 3750X Catalyst switches in the Vanderbilt University Medical Center communication rooms, primary and secondary data centers. I also performed configuration on Cisco 6500 series Catalyst switches. I supported and… Show more I supported and maintained the Vanderbilt University Medical Center network infrastructure including over 1200 Cisco switches, 280 communications closets and over 70,000 network nodes. I participated in 24x7 on-call rotation. I configured, managed and deployed Cisco 3550, 3750 and 3750X Catalyst switches in the Vanderbilt University Medical Center communication rooms, primary and secondary data centers. I also performed configuration on Cisco 6500 series Catalyst switches. I supported and maintained the network infrastructure in the primary & secondary data centers which included the running of new copper and fiber connections from network servers to the network edge, distribution and core. I configured, supported and maintained VoIP on the edge switches. I supported and configured Cisco Intelligent Gigabit Ethernet Switching Module (CIGESM) using IBM Blade Center chassis platforms in primary and secondary data centers. I performed network service requests via the HP OpenView ServiceCenter system such as network patches, network line problems and also Cisco switch related problems including - (speed/duplex mismatch, thresholds exceeded, vlan problems, vlan trunking and bandwidth issues.) I managed and configured IP and DNS for Vanderbilt University Medical Center (over 14,000 subnets) using the Infoblox platform to include the following – (management, configuration and creation of static and dynamic IP scopes and addresses; management and configuration of server, workstation and printer DNS names and alias records. I also troubleshot IP and/or DNS related problems.) Show less

Nashville, Tn

I supported (90) users, (7) Windows 2003 servers, (2) Windows 2003 Virtual servers (2) Windows 2000 servers, (1) WSUS server, (1) Barracuda Spam Firewall and (1) NAS server. Managed Active Directory 2003, Exchange 2003, User Accounts, Group Policy, DNS and DHCP. I configured and managed 2 SonicWall routers, VPN / SSL-VPN and access through those routers. I performed all company IT inventory control and purchasing. I have organized the company’s entire software/hardware asset tracking and usage… Show more I supported (90) users, (7) Windows 2003 servers, (2) Windows 2003 Virtual servers (2) Windows 2000 servers, (1) WSUS server, (1) Barracuda Spam Firewall and (1) NAS server. Managed Active Directory 2003, Exchange 2003, User Accounts, Group Policy, DNS and DHCP. I configured and managed 2 SonicWall routers, VPN / SSL-VPN and access through those routers. I performed all company IT inventory control and purchasing. I have organized the company’s entire software/hardware asset tracking and usage system. I maintained server battery backup hardware and configured software solutions for soft server shutdowns in case of building power failure. I performed all company website design and routine maintenance for (http://www.edisonautomation.com). I performed troubleshooting and programming of the company’s telephony system. I configured/managed daily company backups and data restores using Symantec BackUp Exec 11d. I performed quoting, procurement and setup of server rack-systems for company engineering projects. I also performed routine day-to-day troubleshooting, repair and audits of all company workstations, laptops and servers. I routinely was assigned company IT projects for our UPI (Utilities & Public Infrastructure) engineering division. Show less

Norfolk, Va

Served as a senior level customer service representative and network administrator for the NMCI (http://www.nmci-isf.com) project at NAB – Little Creek, Norfolk. Duties included server/workstation administration and troubleshooting for over (4000) users under 20+ different Navy commands. Primary tasks include creating and managing user accounts and their security permissions, completing and verifying an extensive set of data back-ups, user e-mail account administration, distribution list… Show more Served as a senior level customer service representative and network administrator for the NMCI (http://www.nmci-isf.com) project at NAB – Little Creek, Norfolk. Duties included server/workstation administration and troubleshooting for over (4000) users under 20+ different Navy commands. Primary tasks include creating and managing user accounts and their security permissions, completing and verifying an extensive set of data back-ups, user e-mail account administration, distribution list configuration, computer rebuilds and upgrades. Completed computer trouble calls from tier 1 to tier 3 levels and also handle service ticket queue management for all other CSR’s on base using the Remedy Action Request System. Show less