Management of 800+ physical RHEL 6.X servers across 3 geographically disparate data centers.Rapid deployment & repurposing of hosts via PXELinux and Kickstart.Assurance of configuration uniformity via CFEngine.Creation of custom RPM packages for mass deployment via local yum repositories.Prioritize real-time applications via ISOLCPUS, NUMA control, task affinity, interrupt pinning, kernel and network tuning.Minimize latency via ULL 10GB bonded fiber adapters and kernel… Show more Management of 800+ physical RHEL 6.X servers across 3 geographically disparate data centers.Rapid deployment & repurposing of hosts via PXELinux and Kickstart.Assurance of configuration uniformity via CFEngine.Creation of custom RPM packages for mass deployment via local yum repositories.Prioritize real-time applications via ISOLCPUS, NUMA control, task affinity, interrupt pinning, kernel and network tuning.Minimize latency via ULL 10GB bonded fiber adapters and kernel network stack bypass.Harden servers according to the NSA Redhat 6 STIG baseline.Evaluated and deployed Red Hat Enterprise Virtualization (RHEV).Management 5+ petabytes of Compellent SAN & NAS storage.Perform Latency and general performance profiling of next generation hardware.Management Symantec Netbackup 7.7 on VXVM replicated deduplication pools.Routine patching and 24/7 break/fix. Show less

Enabled high availability for proprietary mission critical enterprise applications.Solely deployed and maintained all Linux servers for the company.Deployed an enterprise wireless solution consisting of 10+ lightweight Cisco access points.Recommended and deployed resilient Cisco Nexus, and Catalyst datacenter switching replacing a legacy Cisco 6500 core. Segmented a once flat network into separate subnets across multiple Vlans enhancing security and… Show more Enabled high availability for proprietary mission critical enterprise applications.Solely deployed and maintained all Linux servers for the company.Deployed an enterprise wireless solution consisting of 10+ lightweight Cisco access points.Recommended and deployed resilient Cisco Nexus, and Catalyst datacenter switching replacing a legacy Cisco 6500 core. Segmented a once flat network into separate subnets across multiple Vlans enhancing security and performance.Migrated critical services from various unsupported distributions to Redhat Enterprise Linux.Recommended and implemented Riverbed deduplication appliances that quadrupled remote application performance.Planned and successfully executed a disaster recovery solution replicating over 200TB of data and over 100 servers.Consolidated dozens of physical servers using VMware virtualization.Administered NetApp, EMC, and Brocade SAN & NAS equipment containing over 200TB of storage.Deployed and maintained Windows servers.Integrated Linux servers into Active Directory for management and SSO.Managed several VMware clusters across diverse hardware: Cisco UCS, HP BladeCenter, and stacked HP Proliant hosts.Managed data protection using Quantum Scalar (LTO4 & LTO6), Quantum DXI, and NetApp Snapmirror.Managed office switching, routing, firewalling, and intrusion detection using Cisco Nexus, and Cisco ASA equipment.Worked one on one with software developers to recommend best practices.Completed regular administrative tasks, growth trending, patching, vulnerability remediation, and scheduled maintenance. Performed 24\7 emergency maintenance as required. Show less