SUMMARY

• Experienced Red Hat Enterprise Linux 5/6/7, and VMware ESXi 3/4/5/6 Systems Engineer with Telephony based Technical Support to assist and provide clients with the best possible uptime and to reliable and accurate communication to get tasks completed.
• Expertise in deploying various Red Hat Enterprise/CentOS Linux 5.x/6.x/7.x builds both Physical and Virtual on HP/CISCO/Dell Hardware running VMware ESXi utilizing Satellite and Puppet/Cobbler servers.
• Experience in RHEL/CentOS 5.x/6.x/7.x Server provisioning, Upgrades, Patching, Configuration and Performance Tuning in Linux, and VMware environments.
• Expertise in the area of Virtualization with Installation, Configuration and Administration of VMware ESXi 4.1/5.0/5.1/5.5/6.0 and vCenter Server 4/5/6
• Expertise in designing build/configure documentation related to Red Hat Enterprise/CentOS Linux via Spacewalk/Satellite/Kickstart/Puppet/Cobbler servers.
• Experience in installing and administering the RHEL 5.x/6.x consisting of Hadoop, Cassandra and MQ clusters in a cloud based environment.
• Experience in configuring JVM heap configuration, thread pool and JDBC configuration to performance tune java applications running on JBoss and Oracle RAC/ASM file systems.
• Expertise in Operating System Security Hardening using Linux/Solaris Firewall, IPtables, SELinux, ports and services
• Expertise in integrating few hundred Red Hat Enterprise Linux OS with Active Directory Security Service to allow and authenticate remote users for remote secured login.
• Experience in configuring Flex - 10/Flex Fabric Shared Uplink Sets, SAN Fabrics, and Server Profiles on Virtual Connect Manager for BL460c, BL680c g6/g7/g8/g9 on HP C7000 enclosures.
• Expertise providing technical guidance to existing server administrators, application teams, database teams and Project managers on OS Migration efforts.
• Extensive knowledge of 24/7 Level-3 support, implementation and management of information technology support operations to include help desk, Call-in support and work priority management, and the use of HP OpenView.
• Experience with day to day support and troubleshooting hardware failures, kernel panics, disk extensions, and OS crashes.
• Experience deploying and managing Logical Volume Manager and Veritas Volume Manager for disk partitioning and creating LVM/VxVM volumes.
• Expertise in creating bash/perl scripts to perform change control automation, close the security ports and assist with daily duties for help desk teams.
• Experience migrating from EMC CX-700 SAN storage solution to Net App FAS Solutions 6240/MPIO.
• Experience setting up IT AUDIT controls, protecting information assets, to meet ITIL, SOX, PCI compliance standards.

TECHNICAL SKILLS

Hardware: HP Proliant DL 585 G8/G9, HP C-7000, BL 460 G6/7/7/9Cisco UCS B200’s B250’s M1’s M2’s, Dell R-900, R-710’s

Server OS: Red Hat 4/5/6/7, SUSE 11.1/11.2, Solaris 9/10

Virtualization: VMware ESXi 3.5/4/5 vSphere & Configuring DRS, HA, P2V.

SAN Tools: PowerPath, Navisphere, NetApp Filers, OnCommand Manager EMX VMAX, VNX, Net App 6240s

Database: MSSQL, MySQL, Oracle

File System tools: LVM, Veritas Volume Manager

Network Servers: DNS, DHCP, NIS, NFS

Web Server: Apache & IIS

Scripting: Shell, Perl

PROFESSIONAL EXPERIENCE

Confidential, Tulsa, OK

Infrastructure Systems Administrator

Responsibilities:

• Installed and configured several thousand Red Hat Enterprise Linux 5/6/7, CentOS 5/6/7 Servers in both Physical Blade and VMware ESXi Virtual Environment.
• Provided various levels of support in a heterogeneous Linux/Solaris/AIX/Windows/VMware environment.
• Preparing servers for Oracle RAC/ASM installation which includes tuning the kernel, agent installation, adding SAN storage and help create ASM File Systems.
• Configuring and Administering SSH, SFTP, HTTP, SMTP, NFS, DNS, NIS, NIS+ and LDAP on RHEL server environment.
• Root cause, triage analysis and problem management of migration processes and failures.
• Provide 24/7 support to Middleware application servers (Weblogic, Tomcat, JBoss), Webservers (Apache, IIS, Oracle IPlanet) and Database servers (Oracle RAC, DB2, MS SQL, MySQL).
• Provision and install Hadoop clusters, scalable monitoring, performance analytics and alerts, and distributed concensus services.
• Configure and maintain all Hadoop, MySQL servers as part of day to day operations.
• Deploy and Configure Red Hat Satellite Server 5.x/6.x, including creating maintaining any customized kickstart configuration channels to deploy RHEL.
• Supported Apache load balancing via (Big IP F5), server clustering and failover to ensure maximum uptime.
• Configure IP/VIP Pools on F5 load balancers along with configuring round robin policies as part new application build outs.
• Create and Setup monitoring bash shell and perl scripts to monitor system resources, logs, disk usage, scheduling backups and restore.
• Configured Clusters and managed servers for improved availability and failover capacity to ensure maximum reliability on WebLogic/JBoss and installed Oracle 10/11g Databases while creating ASM File systems.
• Installation of ESXi 4.1/5/5.1/5.5 Hosts, vCenter Server, vCenter update manager and administering VM’sacross 6 Datacenters running 8000+ VM’s.
• Installing and updating packages using YUM (custom YUM Servers/repositories) and Red Hat Satellite Server.
• Provide 24/7 day to day support and troubleshooting hardware failures, kernel panics, disk extensions, and OS crashes.
• Configure Red Hat Cluster Nodes for any legacy applications and verified the daily health check on the Cluster Nodes utilizing clustat.
• Perform multiplatform volume management using Logical volume manager on RHEL5.x/6.x.
• Installation, Configuration and Administration ofVMwareESXi 4.1.1/ VirtualCenter 4.1, vCenterServers as well as upgrading to ESXi 5.0/5.1/5.5/ Virtual Center 5/5.1/5.5.
• Set up, configure and trouble shoot TCP/IP, DHCP, DNS; NFS, CIFS, and Samba servers in a multiplatform LAN.
• Modify and tune any kernel parameters needed for Oracle Databases utilizing sysctl or /etc/sysctl.conf.

Confidential, Boise, ID

Linux/VMware Systems Administrator

Responsibilities:

• Worked with a team of Datacenter Support to maintain OS and Hardware.
• Deploy RHEL 5.x, 6.1/SUSE 10.3, 11.1 in an blade environment and configuring any hardware requirements (Flex 10/VC-FC) based connections
• Maintain and deploy High End applications developed using WebSphere and JBoss Application Server running on RHEL 5.x and 6.x.
• Rack and Stack C-7000 enclosures that included BL 460’s 620’s and 680’s as well as building out the entire VCM as well as OA using First Time Setup Wizard.
• Upgrade the C-7000 OA firmware to 3.32 as well as upgrade VCM to 3.30.
• Built RHN Satellite Server v5.4.0for patching, registration, andbuilds (kickstart).
• Implemented, configured and deployed new patches, upgrades, bug fixes on both physical and virtual Red Hat Linux servers using satellite server and YUM server.
• Build RHEL servers utilizing templates, custom ISO’s, PowerCLI scripts for Confidential refresh project.
• Password configurations, process monitoring, Boot up and Shutdown procedures in Solaris and Linux Servers.
• Establish and implement ongoing monitoring procedures with both Nagios, HPOVSD as indicated well by establishing a baseline and appropriate metrics, generating a security monitoring procedure, implement scripts, and auditing/verifying the system as reported on a periodic basis and participate in security audits.

Confidential, Santa Clara, CA

UNIX/Linux/VMware/Windows Systems Administrator

Responsibilities:

• Assisted various senior level linux architects in installing, configuring and managing Red Hat Enterprise Linux 4/5
• Create and Setup monitoring bash shell script to monitor system resources, logs, disk usage, scheduling backups and restore.
• Resolved and completed various maintenance tasks on UAT/Production servers and Apache software issues.
• Migrating, Configuring and installing Solaris zones and Solaris ldom.
• Package and User management in zone environment.
• Recreate mirror on drives and root using SVM, VXVM
• Setup environment based sudo permissions to allow developers to perform day to day activities including running start/stop scripts in development environment.
• Completed various storage based change controls which required storage resource allocation by requesting LUNS be provided by the Storage Groups

Confidential, Auburn Hills, MI

UNIX/Linux Systems Administrator

Responsibilities:

• Help to build continuous integration environment using Jenkins, Maven/Ant plug-ins, as part of code and application deployments.
• Configured and deployed patches, upgrades, bug fixes on both physical and virtual Red Hat/CentOS Linux servers using Satellite Server/Spacewalk.
• Configure and maintain NFS Servers for both media and data sharing between servers and resolved any shared storage server issues.
• Create and maintain ACL’s to allow only specific LAN computers to use squid, as well as utilizing access.log to test squid proxy.
• Provide support to the Java development team to help develop Java based applications running on WebSphere and JBoss.