SUMMARY

• 7+ years of experience as a System Engineer/Administrator under environment of RedHatLinux(RHEL) 4/5/6/7, IBM AIX 6/7, Windows 2003/2008 R2/2012, VMware 4/5/6 environment
• System Administration experience in Installation, Configuration, Customization, Management and Administration of Red Hat Enterprise Linux 7/6,and Windows Servers.
• Hands - on expertise on VMware Infrastructure. Manage servers, networking and templates on VMware.
• Configured Puppet Configuration Management and wrote puppet classes to automate system builds.
• Good noledge on managing application wif Apcahe Tomcat, MySql and PHP.
• Performed Installs, Upgrades and Patches on Linux and windows system using IBM Big Fix job scheduler
• Managed Patches, Upgrades and Licensed Products for System software on all flavors of Linux Servers.
• Experienced in Server monitoring, capacity planning, application monitoring wif the help of Nagios.
• WorkedGitLab Version Control and configured GitLab CI.
• Familiar wifKickstart (PXE) and Jumpstart installations on systems like Red Hat 6 & 7
• Extensive noledge on, Managing Virtual env, Dockers and Kubernetes.
• Familiar wif Cloud environments like AWS and Open stack.
• Good Knowledge in Shell, Bash, Python scripting. .
• Experienced on Logical Volume Manager (LVM) in Linux
• Hands on experience in creating and managing all kind of file systems like Ext3, Ext4, and XFS.
• Created Logical Volumes, Logical Volume Groups and manipulated them as required.
• Comfortable in working wif backup and recovery suite like CommVault and performing Disaster recovery and patching.
• Moving application server machines from physical to virtual including in VMware.
• Experienced in working wif LDAP, NFS, Send mail, WebLogic, DNS, DHCP Server, and TCP/IP services.
• Experienced in deploying Virtual machine from templates and configuring them.
• Hands on experience in installation, configuration and support of JBoss, Tomcat, Squid, FTP, Apache Web server, LDAP and mail server.
• Highly experienced on installation and configuration of third party software and services.
• Experienced in round the clock service (24/7) on call support.
• Ability to lead technical discussions and projects in an organized manner
• Ability to document strategies and designs and present these ideas to management wif cost/benefit analysis
• Strong interpersonal skills, including both written and verbal communications.

PROFESSIONAL EXPERIENCE

Confidential, Warrensburg, MO

Systems Administrator

Responsibilities:

• Investigate and troubleshoot incidents interrupting service in customers' environments
• Install, Configureand Maintain Red Hat Linux 5/6/7 and Windows Server 2008/2012 in both Physical and VM Environment.
• Manage Puppet and build custom modules to manage configuration over the Infrastructure.
• Work Closely wif Database and Application systems team to support their projects.
• Install, configure and maintain Tomcat and Apache Web Server in Linux environment.
• Perform Monthly Installs, Upgrades and Patches using IBM Big Fix Job Scheduler.
• Migrate all current RHEL 5 server to RHEL 7 Server.
• Involved in VMWare upgrade from 5.5 and 6.x.
• Manage REALMD wif SSSD to join Linux server wif windows domain and automated dis process in puppet.
• Manage Client policies on MCafee EPO server and troubleshoot issues on it. Migrate MCafee EPO from 4.6 to 5.x.
• Manage 300+ servers both Linux and windows where 80% of them are VMware.
• Manage firewall rules in Cisco Firewall for new server builds.
• Involved in CitrixNetscalar Load balancer upgrade.
• Writing custom Puppet module to automate server builds.
• Perform File restore using CommVault and swap weekly tapes from tape library.
• Managing Microsoft office licensing in Office 365.
• Google G Suite administration. Create, delete, Activate and de-activating users in G Suite.
• Monitor servers and service in Nagios XI.
• Administration of Web Application Servers and performing tunings for better performance.
• Troubleshooting and performance tuning of various systems problems such as application, network and hardware related issues.
• Provide 24 X 7 on call support on a rotational basis.

Environment: Oracle Linux 7, Red Hat Enterprise Linux7/6, Window Server 2012/2008, LVM, Office 365, G Suite, TCP/IP, DNS, SNMP, SSH XFS, Active Directory, IBM Big Fix, Puppet, Foreman UI, GitLab CI, GitLab, VMWare ESXi 5.x/6.x, CommVault, NetScalar, Cisco Firewall, REALMD, SSSD, Team Dynamix.

Confidential, Wilmington, OH

Unix/Linux Systems Administrator

Responsibilities:

• Worked on Operating Systems: Solaris 8, Red Hat Linux 4
• Worked on Cluster s/w: VERITAS Cluster Server 4.0/3.5/2, Sun Cluster 3.0/2.2, HP MC/ServiceGuard A 11.01/10.11
• Installed and trouble shooting of Custom Jumpstart services multiple servers
• ConfiguredNFS and Naming services NIS and DNS
• Applied Support Packages and Patches
• Resolving day to day end user issues using ticketing tool Remedy
• Setting up and maintaining NFS, DNS (Master/Slave)
• Implementation of RAID techniques and the creation of Disk groups and volumes, plexes using VERITAS Volume Manager; Managing disks and file systems using VERITAS Volume Manager
• Configured HA using VERITAS Cluster Server 3.0 for agents like NFS, Sendmail
• Performed custom Jumpstart to install Sun OS on multiple Sun Servers/workstations to simplify administration tasks
• Created System Disk Partition, Mirroring root disk drive using VERITAS Volume Manager
• Troubleshooting of Sun Solaris problems, logging call wif Sun, Involvement in racking servers.
• Interacted wif various teams such Oracle database team, Run UNIX support team, and Backup team

Environment: Sun Solaris (2.7, 8, 9), AIX (4.2), HP-UX (11.0), Windows-2000/2003 Sun Ultra E 4800/3000/450/250 , Sun Fire 4800/3800, HP-9000, Proliant series, RS-6000, Veritas Foundation Suite

Confidential, Chicago, IL

Linux/UNIX/VMware System Administrator

Responsibilities:

• Installation, configuration and upgrade of RedhatLinux3/4/5, AIX 5.3, VMware 4/5 operating systems.
• Configured and installed RedhatLinuxServers using jumpstart, Ignite, and Kickstart.
• Extensive use of Logical Volume Manager (LVM), creating Volume Groups, Logical volumes and disk mirroring in HP-UX, AIX andLinux.
• Worked on installing and configuringVMware/ESX Servers for virtualizations.
• Configured LinuxBonding. Worked on Storage multipathing.
• Responsible for writing, maintaining and documenting UNIX scripts to support smooth running of applications on the production servers.
• Supported Oracle RAC (Real Application Cluster) Servers running onLinuxwif GFS
• Create automated Jumpstart environment for linux standard builds for WEB, APP and DB servers.
• Extensively involved in troubleshooting bottlenecks of Memory, CPU, Devices and Network using ps, vmstat, iostat, netstat, sar, snoop, nfsstat and sar commands, tuning the performance.
• Package management using RPM, YUM and UP2DATE in Red HatLinux.
• Developed technical documents like handbooks, document installation configurations, and proposed resolutions for support processes.
• Worked on HP Open View Service Desk (OVSD) tickets.Raised tickets for any issues discovered during validation.
• Communicate wif the user community and co-workers to assess needs, resolve problems, and provide technical assistance where necessary relating to UNIX administration functions, and software running on UNIX platforms such as Apache, WebSphere and Oracle9iAS and COTS third party software.
• Installing and Managing ESX and ESXi Servers on HP & Cisco hardware.
• Timely update of patches, drivers and firmware's on all ESXi hosts.
• P2V and V2V conversions by usingVMwareConverter, Double Take, Recovery Point Approach.
• Administration ofVMwareESX and ESXi Servers on Cisco UCS, HP Chassis 7000, DL380P GN8.
• Performing VMotion and storage VMotions, Creating Clusters for High Availability and Dynamic Resource Scheduling, HA, DRS.
• Played a vital role in Creating Virtual Machines, Cloning virtual machines, converting P2V(used standardVMwareconverter tool), VM-Provisioning (Linked clones, thin disks, de-duplication ) taking Snapshots of virtual servers.Experience on creating host profiles and deploy to hosts in aVMwareclusters.
• Experience in installing and configuring Microsoft Windows 2008 Servers from ILO management tool on Rack servers and blades.Experience wif vSphere Host Profiles, Standard and Distributed Switches setup.
• LUN creation and storage mapping administration and configuring Multipathing.
• Build, configure and deploy Microsoft Windows 2008, 2008 R2, and 2012 Virtual and Physical servers using Blade logic and MDT.Perform P2V and V2V conversions usingVMwareConverter and PlateSpin.
• Provide Server administration and technical support for Windows 2008 R2 and 2012 Servers like Guest operating system issues, Disk expansion, adding CPU, increasing VM Memory etc.

Confidential

Unix/ Linux System Administrator

Responsibilities:

• Worked on Installation, Configuration and Upgrade of Solaris, Linux, SuSE Linux and HP-UX operating systems
• Createdand modified local and global zones, zone parameters, and file systems on local and global zones
• ConfiguredZones/Containers in Solaris
• Built systems using automated technologies like Oracle Ops Center
• Experienced in Administration of VMware ESX 3.x server and experience in P2V through Platespin Power convertor and VMware, Oracle VM Box, Oracle VM Manager
• Installed RPM packages to upgrade Linux packages
• Capacity planning and performance tuning of Solaris servers
• Design, develop, and support UNIX system images using Solaris jumpstart, HP-UX Ignite, Redhatkickstart
• Provided support toUNIX servers and troubleshooting of day to day problem
• Configured Linux Redhat servers wif kickstart, LDAP, DNS,and DHCP to connect to Network
• Performed installation of HP-UX Ignite (Ignite-UX) and Solaris Flash Archive (FLAR) wif Jumpstart on various servers throughout the infrastructure
• Experienced wif the installation, configuration and volume/File system management using Veritas Volume Manager, Logical Volume Manager (LVM) and Solstice Disk Suite (Solaris Volume Manager)
• Configured and troubleshoot the network file systems (NFS), ZFS, zones, and network information service (NIS) environment
• Planned, Deployed, and Configured and managing Redhat 6 Server as mail, gateway, dhcp and proxy server
• Created virtual disks and assigned CPU threads by using Logical Domains (Ldoms)
• Maintained Veritas Cluster Server and Sun Cluster Server for high available systems; Configured resource group/service groups from the scratch and tested for failover

Environment: Redhat Linux, SuSE Linux, Solaris, HP-UX, NETBSD 6.1/5.02, SCO Unix, Sun SPARC T5-2/M4000/M3000, Sun X3-2L, X4600/4800, X4440, X4150, HP DL380 Gen7/Gen 8 servers, Dell PowerEdge R620/R610, Dell 1950 Server.