SUMMARY:

• IT Professional with close to 8 years of experience in the administration, maintenance and support of Red Hat Linux, AIX, Sun Solaris, VMware on various Hardware Platforms in various designations; System Admin, System Engineer and DevOps Engineer.
• Extensive experience in Installation and Administration of AIX 4.3/5.1/5.2/5.3/6.1/7.1, RHEL 3.x/4.x/5.x/6.x.
• Designed and Performed NIM installation and Kick Start over network and created, maintained installation server, boot server and profile server.
• Experience working with VM ware technologies including VMware ESX and ESXi, which involved installation, configuration and support.
• Installed and configured Apache 2.x, 1.3.x, 1.2, JBoss4.0.x, ATG Web Servers and, BEA Weblogic 8.x, 9.x Servers.
• Extensive experience working on Redhat satellite servers.
• Experience working on installation configuration and support of DHCP servers, mail server, samba server and other web and application servers.
• Over 3 years of experience working on DevOps environment as a DevOps engineer.
• Experience with Configuration management tools, Puppet.
• Wrote Puppet manifest for Deployments, automation.
• Experience in working on Build tools, Jenkins, Rundeck for different application and deployment jobs.
• Installed Oracle RAC, 10/11g, 9i on IBM AIX, DataPower Appliances, Red Hat Linux and MYSQL on Linux.
• Proficient in installation and configuration of Web Sphere Applications on Red Hat Linux and IBM AIX.
• Experienced in creating and maintaining user accounts, profiles, security, permissions, disk space and process monitoring.
• Worked on Hardware and software RAID management of storage for redundancy and high performance.
• Experience in Installing and Configuring of Network Print Servers on Red Hat Linux.
• Installed and Configured VERITAS Cluster Service.
• Hands - on experience in setting up a PXE boot environment with Red Hat Linux, CentOS Linux.
• Experienced with installation of packages, patches, maintenance & RPM updates on Red Hat Linux, CentOS Linux.
• Extensive hands-on experience in AIX Logical Volume Manager (LVM), OS Upgrades and Servers Disk Crash Recovery using Mksysb (AIX).
• Worked on installing AIX on a LPAR environment P-Series including configuring VIOS using NPIV and MPIO.
• Had good working knowledge of building Docker images and running them as Docker Containers.
• Configured services like DNS, NIS, NFS, LDAP, Send Mail, on Red Hat Linux and AIX.
• Responsible for setting up disaster recovery environment for IBM AIX and Red Hat Linux servers and implemented all the DR procedures as per the guidelines.
• Networking communication skills and protocols such as TCP/IP, Telnet, FTP, SSH, DHCP.
• Worked with VMware ESX 3.5/4.0/5.0 servers, and Virtual Infrastructure client to create virtual guests.
• Ensured system security by hardening and auditing the systems as per guidelines in IBM AIX, Solaris and Red Hat Linux, also experienced in system analysis, troubleshooting and performance tuning of operating systems.
• Worked on Scripts in Korn, Perl, Bash, CSH, Bourne shell and for automated tasks.
• Extensive use of VI editor for day-to-day system admin work.
• Possess strong analytical and troubleshooting capabilities, proactive listener and team player with positive approach and excellent grasping power.
• Experience in working with a team, onsite-offshore models and in independent environment.

TECHNICAL SKILLS:

Operating Systems: Linux (RHEL 3.x/4.x/5.x/6.x, Red Hat 8/9 & Debian), IBM AIX 5.1/5.2/5.3/6.1/7.1

Virtualization: VMware ESX 3.5/4.0/5.0, VMware Workstation.

Storage: VERITAS Volume manager 3.5 and 4.x, Logical Volume Manager, Tivoli (TSM), VERITAS NetBackup4.5, EMC Power Path, EMC Symmetrix Vraid.

Cluster: HACMP, VCS.

Web Servers: Apache1.3.x, 1.2, 2.x, JBoss4.0.x, WebLogic, Web Sphere, Java Web Server, Tomcat, IIS 5.0/ 4.0, SAMBA v3.0, Sendmail.

Database Servers: Oracle8i/9i, 10/11g, RAC, MS SQL 2000/ 7.0.

Network Services: SMTP, SNMP, DHCP, POP, SMB, NIS, NIS+, NFS, DNS, FTP/TFTP, ARP/RARP, SSH, TCP/IP, WEBSM, NTP, TELNET.

Servers: IBM RS/6000, and P-series servers ranging from F50,H80,F85,P610,P615,P630,P510,P670,P690,P550, P570, P590, P595,P770. HP DL 320, HP DL 330, HP DL 380s, HP DL 580s, Dell Power Edge Servers, dell 2300, 2400, 2450, 2850, 2950, 6300.

Programming languages: C, C++, java, HTML programming.

Monitoring tools: Nagios, BMC (Patrol), Tivoli, Splunk

Scripting: Bash, korn, Shell Scripting on Red Hat Linux

PROFESSIONAL EXPERIENCE

Confidential, Portland, OR

System Administrator

Responsibilities:

• Worked on installation, configuration and maintenance of Redhat 5.x, 6.x, 7.x on Development, test and production environment
• Worked and Involved in migrating from end-to-end of 3500 CentOS5 servers to CentOS 7.2.
• Executed routine tasks in Red Hat Linux that include upgrading rpms, kernel, configuring SAN Disks, multipath and LVM file system.
• Developed Kick start file to create the Template for server deployment, and build 500+ servers as per requirement given by application team.
• Installed and maintaining physical as well as virtual Red Hat Linux servers (RHEL 7.X, 6.X, 5.X, 4.X) based on project requirements.
• Administered virtual server environment using VMWARE ESX, Vcenter VSphere.
• Configured LDAP based authentication on the Redhat Physical and virtual servers.
• Worked with storage team for allocation of SAN LUN on physical server and scanned it from server end for migration.
• Configured Linear as well as stripped file system on SAN disks.
• Perform Host Based SAN Storage migration to migrate the data from clarion to Vmax 1414 on standalone server, GPS cluster and HP service guard cluster.
• Performed Host Based SAN Storage migration to migrate IBM XIV storage array to VPLEX storage array on AIX and Linux servers.
• Worked with IT compliance and risk management.
• Installed and configured Avamar and NetBackup agent on the servers working with backup team.
• Worked on P2V migration, migrating from Redhat Physical server to Redhat virtual server and created Pre, Post build and Validation script to automate the P2V.
• Involved in the Migration of Customer Data on to the DMS Systems.
• Performed patching of Redhat Linux servers on regular given schedule.
• Installed and Configured about 1100+ RPMs onto the DMS Systems.
• Troubleshooting and Maintenance of the Dealership Systems.
• Responsible for provisioning of the large scale of Virtual Systems through an in-house built Congo Provisioning tool.
• Created Patches and Installed them on the systems to resolve the issues.
• Coordinating of the team of other developers and QA in helping them understanding the work-flow.
• Configured Worked in upgrading of Puppet version from Enterprise 3.8.3 to Enterprise 2016.x(Versions 4 and above).
• Python Programming and Shell scripting.
• Worked with the Hypervisor and the storage team.
• Created, deployed, and managed complex, fine-grained access control policies to ensure only authorized privileged users are getting at your most sensitive data and applications.
• Worked on generating RHN channels for PCI patching and patched around 600 PCI servers working with offshore team.
• Installed encase, Tripwire, And Antivirus on the server for security purposes and installed HPOV for the server monitoring.
• Registered the server on CMDB and created the change to implement the changes on production environment.
• Created Documentation on troubleshooting issues related to Patching updates on a frequent basis.
• Worked closing with the Global hosting team in provisioning of the Virtual Machines using Congo.
• Worked on the operations to help support teams in the migration process.
• Installed kernel patches and updating hardware firmware to bring the stability to the hardware.
• Monitored the server’s performance and status during holiday support period using HPOV tools. Provided Production support.
• Worked on installation, configuration and monitoring of DHCP servers, mail server and samba server.
• Worked on support and maintenance of Red hat satellite servers.
• Installed and updated the VMware tools on the new build servers.
• Designed virtualization solution for legacy PARISC applications with HP Integrity VM
• Performed BIOS and FIRMWARE Upgrade on HP hardware.
• Manage systems using remote consoles like ILO for HP Hardware and HMC for IBM P-Series.
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment as per change management policy.
• Mentored and trained other offshore members of the team in various technologies.
• Modified systemconfigurationfiles (such as network settings, kernel parameters, service configuration files, cron)

ENVIRONMENT: Linux/Unix Red Hat Infrastructure Amazon Web Services (AWS),VMware ESX Server 4.x/5.x, Congo, Cygwin, Linux CentOS 7, Sun Enterprise Servers, Puppet Enterprise(Versions 3.x/4.x), Reality, Python, Ansible, PostgreSQL Databases, Puppet Tenancy.

Confidential, Dallas, TX

System Engineer/Admin

Responsibilites:

• Administered networks in Linux (Redhat 5/6) Servers and also maintained UNIX/Linux System running different Database and Middleware Applications.
• Allocated Storage, Volume Management and Filesystem Management using LVM, VERITAS Volume Manager and VERITAS Filesystem.
• Designed two new VMware ESX Servers 4.x, ESXi 5.x on HP HW running Red Hat Enterprise Linux & Created different virtual machine like Windows 2003 & 2008 Server, SuSE enterprise Linux using VMware Virtual Infrastructure Client tool.
• Provided Clustering solutions for High Availability using tools such as VERITAS Cluster Server (VCS), MSCS, RHCS.
• Administered virtual server environment using VMWARE ESX, VCenter VSphere.
• Installed and configured Puppet for the automation of various applications.
• Created Manifests and Modules for various client requirement.
• Implemented Puppet architecture and developed modules primarily to manage JBoss instances
• Configuration and Installation of Ipv6.
• Worked with other teams including operations and support to mitigate any issues.
• Created Patches as required to resolve any issues.
• Recovered lost storage data using Snap Restore, FlexClone and Snap Vault.
• Installation, Implementation, Configuration and documentation of Backup solutions for Disaster Recovery of clients using OMNIBACK on UNIX and Linux platform.
• User Management and set permissions to the AD users.
• Performed patching of Linux, and HPUX servers on regular given schedule.
• Extensive knowledge in working on RAID groups and setting up NFS, CIFS and iSCSI protocols in SAN/NAS environment on HPUX 11.31 and Redhat Linux.
• Configured migration for UNIX/Linux server and SAN storage between data centers and also application migration and testing. This included SAN/Application migration and testing various functionalities of key applications.
• Installation and setup proliant blade BL,DL series with fiber channel connectivity, Cisco GESM interconnect switch, configuring the connectivity, setting up JBOSS cluster, setting up oracle RAC cluster, configuring load-balancing on apache, on Redhat Linux 5.6 and Setting up NIS/NFS on RedHat and CentOS servers.
• Setting up JBoss cluster and configuring apache with JBoss on RetHat Linux. Proxy serving with Apache. Troubleshooting Apache with JBoss and Mod jk troubleshooting for the clients.
• Structured the lab environment with Tomcat/Apache, configuring the setup with F5 virtual load balancer for customer application.

ENVIRONMENT: Redhat RHEL (5.x,6.4,6.5) Logical Volume Manager, Splunk, Amazon Web Server (AWS),VMware ESX Server 4.x/5.x, VERITAS Cluster Server (VCS), Tomcat/Apache, MSCS, RHCS, Sun Enterprise Servers, HP and IBM Blade Servers (C6000 & C7000)

Confidential, Columbus, OH

Systems Administrator/Engineer

Responsibilities:

• Configuration and Administration of Fiber card Adapters and handling of SAN (Storage array’s, HP EVA, EMC).
• Installing and Configuring RHEL 4.x/5.x/6.x Servers/Workstations using Kickstart on DL 380’s.
• Planned and configured LPARS/D-LPAR’s on IBM P-Series P570, P590, P770
• Configuring virtual machines using VMWARE to install Linux guest operating systems
• Implementation of hardware RAID on HP DL servers
• Performed server Virtualization using IBM P-Series servers and Dual VIO’s
• Configured NPIV and MPIO on VIO servers and their client Lpars.
• Conducted planning, Implementation and management of NIM Master server and NIM Clients.
• Installation, Configuration and Administration of high availability VERITAS Cluster Servers for failover and redundancy purpose.
• Extensively worked on installation, configuration and maintenance of RHEL, CentOS, UBUNTU and Lion Linux on development, test and production servers.
• Applied new patches for Linux servers, and installed packages using RPM and YUM
• OS upgrades to higher Tech level in IBM AIX 5.3, 6.1
• OS Migration from IBM AIX 5.3 to AIX 6.1, with coordination from application team
• Migrated IBM Lpars from p570 frame to p770 frame.
• Configured and Management of disks using LVM on Red Hat Linux, CentOS and IBM AIX.
• Managing of disks storage using VERITAS Volume Manager on Sparc Solaris
• User account management in a complete NIS and DNS environment, with all user home directories automounted.
• Provided support to Websphere and Weblogic Application servers.
• Implemented and Enhanced the existing scripts which are developed in Bash and Korn.
• Scheduling of jobs using CRON tab.
• Used remote consoles to manage servers remotely, ILO for HP and HMC for IBM Lpars.
• Worked with IBM in replacing failed power supplies, DIMMS, Fiber cards.
• Provided 24x7 System Administration support for AIX 5.3/6.1/7.1 based servers and Red Hat Linux 4.x, 5.x servers, Solaris, CentOS Linux and resolved trouble tickets on shift rotation basis.

ENVIRONMENT: AIX 5.3/6.1/7.1, Red Hat Enterprise Linux 4.x/5.x/6.x, UBUNTU, Sun Solaris 10, VIO 2.0, HP UX, VMware ESX server4.0, NPIV, MPIO, ZFS, VXFS, Kickstart, Bladelogic, CFengine, LVM, NIS, DNS, Web sphere, Web logic, SAN/NAS, BMC, IBM P570, P590, P770, HP DL 380’s.

Confidential, Hartford, CT

Linux Administrator

Responsibilities:

• Installed, upgraded & configured RHEL 4.x using Kickstart and Jumpstart Installation respectively.
• Configured Printers, Print Server and Print Clients using commands like lp, lpstat, lpadmin, lpfilter &GUI.
• Managed disk operations, disk group operations, volume operations and volume configurations using vxdisk, vxdg, vxassist, vxmake and vxvol in VERITAS Volume Manager.
• Deployed Portlets manually using Admin Console.
• Performed disk Management in Linux using Veritas Volume Manager and LVM.
• Installed Veritas Cluster and Configured Resources and Service Groups Configuration in VCS.
• DNS, LDAP, NFS, NIS and Samba configured and administered in Red Hat Linux.
• Used ndd, traceroute, netstat, ifconfig and snoop in Network troubleshooting.
• Good knowledge of Hummingbird connectivity V7.1 in order to Administer and Manage Network Applications and Services like NFS.
• FTP Server configuration done in Linux and also did kernel tuning on Linux for play out software.
• Basic configuration and deployment of Java server.
• Created new users, groups and configured their home directories and given access restrictions to software and directories & files using access modes.
• Participated in Configuring DHCP server and giving IP addressing dynamically.
• Written Shell scripts to run Batch Jobs on Red Hat Linux servers.
• Provided system performance report on a regular basis along with updating all software at current versions, and maintaining a log of changes for tracking.

ENVIRONMENT: RHEL 4.x, Windows NT, weblogic 9.0/8.1, Logical Volume Manager.

Confidential

System Administrator

Responsibilities:

• System Installation and configuration (RHEL, Solaris, Windows Servers)
• Monitoring, analyzing, and responding to security events utilizing security event management and reporting tools.
• Account, user &group administration, Permissions policy management and quota implementation.
• Systemperformance monitoring, tuning andlog management
• TCP/IP Networking, Troubleshooting and Linux Network Administration
• Worked closely with network/incident analysts and IC analysts to monitor current attack and threat information to identify.
• Installation, Configuration, support and security implementation on various services like DHCP, SSH, NFS, SAMBA, DNS, HTTPD, SEND MAIL.
• Implemented and configured brand new VMware virtual infrastructure cluster running on servers and on storage array.
• Coordinated with application team in installation, configuration and troubleshoot issues with JBoss servers.
• Installation and configuration of database systems e.g. MySQL, Oracle.Involved in creating virtual machine using Oracle Virtual Manager, Creating server pool, VM Cloning.
• System monitoring and remote connection management usingtelnetandSSHconnections.
• Experience in setup Storage area Network (SAN) and NAS and file systembackup and restore.
• 24x7 on-call rotation for support of production systems.
• Installed and Configured RHEL 3.x & 4.x as well as administration of kickstart.
• Day-to-day maintenance of our IBM servers as well as deployment and upgrades of current production servers to RHEL4.
• Implemented Xen and VMware environments.
• Management of users using NIS.
• Package management using RPM and errata using UP2DATE.
• Performed Kernel upgrades and configuration and used Bourne shell for scripting.
• Trouble shooting the problems regarding NIS, DNS, SAMBA and DFS.
• Configured and maintained system security using IPTABLES and TCPWRAPPERS.
• Mounting, un-mounting, Partitioning and creating new file systems.
• Implemented mail server with send-mail servers.
• Installed RHEL 3&4 on HP Blade BL20p servers.
• Setup Linux workstations with hardware and software RAIDs and implement LVM. Configure and maintain clustered RAID subsystems.
• Creation of CRON tabs and scheduling tasks.
• Maintained uptime of production servers in 24x7 environments.

ENVIRONMENT: RHEL 3.x,4.x, VMware, Windows Server 2003, NIS, DNS, SAMBA, RAID, LVM, MSSQL. Dell PowerEdge and HP Proliant Servers and Blades