David Irwin Email & Phone Number

Winter Park, Fl

• Managed Desktop refresh project of over 3000 workstations at 400 locations across the country. Developed the system requirements, selected the hardware and vendor, and created the process used to complete the project on time and on budget. • Replaced DNS and DHCP/BootP servers with IPAM system from efficientIP deploying new Red Hat Linux systems in VMware environment with F5 Big IP LTM front end for the DNS servers. New system provides DHCP service high availability and superior DNS performance compared to old system.• Deployed Cisco UCS environment on C series hardware for enterprise VoIP phone system. • Migrated enterprise WAN from Verizon to AT&T MPLS backbone. Developed process used to migrate 400 locations across the country with a minimum of downtime. Created the new configuration for the existing routers and managed the remote vendor technicians used for on-site smart hands assistance.• Deployed VMware ESX in IBM Blade Center and Flex Chassis environments. Configured physical networking components in the chassis and the connected Cisco Catalyst 6500 core switch. Configured virtual switching and redundancy in VMware environment.

Winter Park, Fl

• Deployed network management and monitoring tools from Cisco, Solarwinds, and Ipswitch to effectively monitor the health and performance of the network, servers, and services.• Replaced the corporate firewall with Fortinet next generation firewall. Manage the policies, configure user based and site to site VPN connectivity, and monitor the IPS/DLP UTM logs.• Configured Juniper SA4500 SSL VPN for user and contractor based access to internal resources. Create portals that present the resources in the format best suited to the user’s needs.• As part of the combined Telecom/Networking team worked to deploy Cisco VoIP phone system enterprise wide. Developed QoS policies, assisted with server deployment, and created switch configurations for access layer switches.• Manage Cisco Wireless LAN implementing separate internal, BYOD, and guest wireless access methods.

Orlando, Fl

• Configured systems for new deployment, maintenance of existing and new systems as well as integrating new systems into existing environments. Systems included physical and virtual Microsoft servers, firewalls, routers, and direct attached and iSCSI SANs.• Developed network monitoring systems using SNMP, WMI, and custom scripts for both agent and agentless configurations.

Orlando, Fl

• Designed, configured, and implemented LAN/WAN technologies including firewalls, VPNs, Intrusion Detection/Prevention, routing and switching on various hardware such as Cisco, Extreme, Netscreen, Xylan, Cayman and Radware. • Migrated Netware 4.11 print and file server infrastructure to Windows 2000 Active Directory based services.• Implemented NAS/SAN on NetApp FAS940 and Nearstor R200 including near real-time data replication to remote Disaster Recovery Hot site.

Winter Park, Fl

• Installed and configured Cisco routers, switches, and firewalls for multinational voice and data network. Configured Summa Four telephony switches for customer long distance access.• Migrated corporate LAN from Novell NetWare 4.11 to Microsoft Windows NT 4.0.• Provided hardware and software support to corporate end users.

Orlando, Fl

• Provided technical support for the firm’s Novell NetWare 3.12 network, PC hardware, and software.• Created and maintained the firm’s Internet presence.• Researched and recommended new hardware and software purchases for the firm.

Orlando, Fl

• Provided software, hardware, and technical support to the department’s staff.• Managed the department’s Novell network, migrating it from NetWare 3.12 to NetWare 4.11.• Created and maintained the departments Internet presence.• Assisted in purchasing decisions for new technologies, software, and hardware.