Ron Geisler Email & Phone Number

Responsible for providing senior level technical support to Mela Sciences Infrastructure team. Responsibilities included all infrastructure design, implementation and after hours support. Designed and implemented a new VMware vSphere 5.5 platform including the P to V conversion of over 65 physical servers. Installation of both physical and virtual servers, direct attached storage systems, RAID configurations, EVA/MSA SAN management, Disk Groups, Vdisks, and volumes. NetApp SAN 8.2.1 Cluster Mode including provisioning of NetApp Storage Virtual Machines, aggregates, volumes, LUNs, LIFs, NFS, CIFS, and iSCSI implementations. Fiber Channel zoning using both and A and redundant B side on Brocade switches. Management and support of HP Servers including HP Blade Servers and multiple HP C7000 Blade enclosures.Network configuration and management of, Cisco 6500/3750/2960 Catalyst switches, Cisco 2800 routers, Cisco 5505/5510/5520 ASA firewalls, TippingPoint IPS firewalls, and VPN site to site tunnels.Manage and support of a Windows 2008 multisite AD forest including an Exchange 2010 Mail environment. Manage and support of both internal and external DNS Servers. Voice and data communications, SolarWinds SNMP implementation and monitoring.

Stamford, Ct

Providing senior level technical support to Stamford Hospital IS Infrastructure team. Responsibilities include infrastructure design and support. Deployment of both physical and virtual servers, RAID configurations, NetApp San management including provisioning of aggregates, volumes, LUNs, NFS, CIFS shares, Snap Drive, Snap Mirror and VSC for vCenter. Fiber Channel zoning using dual Cisco MDS switches having both an independent A side and B side. ISCSI configuration for out of ban storage replication.Assisted Infrastructure team in upgraded an existing VMware 4.1 platform to VMware 5.1. New host baselines, host profiles, updating over 300 guests VM’s on the latest VMware hardware release 9 and VMware tools. Management and support of the VMware cluster including HA, DRS and virtual switch VLAN assignments.Installation and management of Cisco UCS blade servers including the addition of a new blade chassis. Cabling of 6200 Fabric Interconnects, B200 Servers, B230 Servers, and system management using both command line and Cisco UCS Manager. Manage and support a Windows 2008 AD forest including needed group policies. Manage and support an Exchange 2010 Mail environment. Server Operating Systems installs including Windows Server 2003 and 2008.Programing and management of SolarWinds SNMP monitoring for all network resource and SolarWinds Application WMI monitoring for all critical applications.

Greenwich, Ct

Manage and implement all facets IT including, Windows system administration, infrastructure design, network design, security and firewall management, voice and data communications, SolarWinds SNMP implementation and monitoring.Designed and implemented an entire Windows server infrastructure on a Windows 2008 Hyper-V virtual platform.Orchestrated implementation of large scale projects including Exchange 2010 upgrade migration from 2003, Active Directory 2008 upgrade, SQL 2008 upgrade, Palo Alto firewall setup/installation and management, Disaster recovery design and implementation including, VPN tunnels to DR site, real-time data replication, full DR testing of all systems with operational staff members on a semi-annual basis.

Stamford, Ct

Responsible for providing senior level technical support to Diamondback Capital.Responsibilities included all infrastructure design, implementation and after hours support.

Stamford, Ct

Responsible for providing senior level technical support to Sailfish Capital.Responsibilities included all infrastructure design, implementation and after hours support

Greenwich, Ct

Responsible for providing senior level technical support to Severn River Capital.Responsibilities included all infrastructure design, implementation and after hours support.

Wayne, Nj

Responsible for providing senior level technical support to Dendrite International.Responsibilities included all infrastructure design, implementation and after hours support

White Plains, Ny

Responsible for providing senior level technical support to Metro Media Fiber.Responsibilities included infrastructure design of voice systems, network systems, Windows Server environments and after hours support.

Rochelle Park, Nj

Responsible for providing senior level technical support to AT&T.Responsibilities included infrastructure design of AT&T/Lucent/ Avaya voice systems, network systems, Novell Servers, Windows Servers, and after hours support