SUMMARY

• Around 8 years of specialized experience in Linux/Unix System Administration, Network Administration and Application Support working on RedHat Linux 4/5/6/7, SUSE Linux 9/10/11 IBM AIX and Ubuntu 10/11/13/15
• Experience in installation, configuration, backup, recovery, maintenance, and support of Several Unix/Linux Servers.
• Extensively worked on tools like Veritas Volume Manager (VxVM), Veritas file System, Logical Volume Manager (LVM) and Solaris Volume Manager (SVM).
• Good experience in setting up of RAID0, RAID1 (mirroring) and RAID5 for data redundancy using Veritas Volume Manager and Veritas File System.
• Experience in building Servers using Kickstart in Linux andManual installation.
• Experience in implementing High Availability Solutions using VERITAS Cluster and RedHat Cluster Server.
• Worked on OS migrations, upgrade and BIOS and NIC firmware upgrades.
• Configuration and administration of Fiber Card Adapter’s and handling of SAN (SAN arrays, HITACHI, EMC).
• Installation and upgrade of Packages and Patches configuration mgmt, version control, service pack & reviewing connectivity issue regarding security problem.
• Implemented day - to-day tasks in RedHat Linux include upgrading packages, kernel, and drivers.
• Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in RedHat Linux.
• Experience in setting up Kernel Based Virtual machines (KVM).
• Experience in configuration of NIS, NIS+, LDAP, DNS, DHCP, NFS, LDAP, Automount, Sendmail, FTP, remote access, Active Directory, Security management and Security trouble shooting skills.
• Experience in writing shell scripts to automate the administrative tasks and management using cron and at.
• Experience on webservers such as Tomcat 5.x/4.x/3.x & Apache Server 2.x/1.x
• Experience in Installation of Oracle, MS SQL Server and MYSQL.
• Experienced in administering Web server Apache and Application server JBoss.
• Extensive experience in configuring Global File System (GFS) and Zetta byte File System (ZFS).
• Experience in VMware ESX/ESXi Server to build guest OS using cloning.
• Analyze, troubleshooting, and resolve RedHat Linux and Server HW, Network problems in a Production Server environment.
• Good working experience with Redhat Satellite Server for upgrading and patching Linux Servers.
• Experience working with production and 24 x 7 on call environments.
• Good team player, strong interpersonal and communication skills combined with self-motivation, initiative and the ability to think outside the box.
• Scripting done in bash and perl for automated tasks.
• Experience on JIRA which is a bug tracking tool.
• Knowledge on AWS services like EC2, S3, EBS.
• Worked on puppet for configuration management.
• Experience on monitoring tool like Nagios and Solarwinds.
• Worked on automation tools like Ansible.

TECHNICAL SKILLS

Operating Systems: Linux (RedHat 3.x, 4.x, 5.x, 6.x., 7.x SUSE 9/10,11 Cent OS), 8.0/9.0/10.0 , AIX (5.1L, 5.3L) Windows 2003/2008/2012 , VMware ESX/ESXi, SUSE and UBUNTU 10/11/13/15

Hardware: IBM RS/6000, P Series (520, 550, 570, 575, 590, 595, 630, 650, 670, M80, S80, H70 and H80), HP Blade c7000,c3000,, IBM 3494, 3583, Automated Tape Library HP DL (380s and 580s), DELL PowerEdge (1650,2850,2950,6400). IBM HS22 Type 7870, 1936 and HS23 Type 7875.

Programming Languages: Unix Shell Scripting (shell/Bash), Perl, Python

Web/Application Servers: Apache Server 2.x/1.x, Tomcat 4.x/5.x, iPlanet, Web Sphere Application Server 5.x/6.x, IBM HTTP Server 6.x, WebLogic Server 5.1/ 6.1/7.0/8.1/9.1/9.2 , HTML, DHTML, XML.

Cluster: Veritas Cluster Server, Redhat Cluster Server, Oracle Cluster

Applications: HACMP, Samba, Tivoli (TSM), Nagios, Veritas NetBackup, Veritas Volume Manager, LVM, EMC Powerpath

Networking: TCP/IP, NIS, NFS, DNS, DHCP, Cisco Routers/Switches, WAN, SMTP, LAN, FTP/TFTP.

RDBMS: IBM UDB2, Oracle 8i/9i/10g, MS-SQL Server 7.0/6.5

Tools: Ansible, Jenkins (Ant and Maven builds), Puppet

PROFESSIONAL EXPERIENCE

Confidential, Orlando, FL

System/VMware administrator

Responsibilities:

• Installing, Configuring and maintaining Red Hat Linux 5/6/7, SUSE linux and Ubuntu servers.
• Performed security updates and patches on Ubuntu and Linux servers using the IBM’s BigFix tool.
• Worked on users creating and management in Linux and Ubuntu boxes.
• Installed the McAFee agents and antivirus on the Linux and Ubuntu servers.
• Performed the installation of CA Control Minder which provides user account privileges and UNIX authentication across the servers.
• Worked on QIP to lease out and assign IP addresses to the servers.
• Installed the Symantec Data Center Security software across the Redhat and Ubuntu Systems.
• Knowledge on Oracle RAC clusters and was involved in applying the security updates across the oracle RAC clusters.
• Implemented KVM on Redhat 6 and on Ubuntu 10.04.
• Performed installation of packages on Ubuntu servers using apt-get and dpkg.
• Installed and configured Ansible and created simple playbooks.
• Writing Shell and Perl Scripting for automation of job.
• Adding/expanding new storage to existing/new systems using LVM
• Installing, Configuring VMware ESXi 5.5 Hosts and adding to the Clusters in vCenter.
• Involved in P2P, P2V and V2V migration.
• Involved in deploying templates and appliances on VMware Infrastructure. Configured storage on different types of platforms.
• Worked on ticketing system called Service Now and change management process.
• Provided 24/7 On call Support.
• Installed and configured puppet and puppet nodes.
• Experience with Solar Winds which is a system monitoring tool.
• Worked on Openstack Cloud environment supporting Windows & Linux instances.
• Analyze, troubleshooting, and resolve RedHat Linux, Windows and Server Hard Ware, Network problems in a Production Server environment.
• Created VPC in AWS & launching instances in it.
• Implemented JenkinsWorkflow and Plugins for repeatable deployments of multi-tier applications, artifacts.
• Created Security Groups in AWS & managed them.
• Configure EC2 Instances, VPC, Route 53, ELB, Subnets, etc.
• Setting Cloud Watch Alarm for monitoring & integrating it with ELB, EC2, Autoscale etc.,
• Setting Elastic Load Balancers & attaching AWS EC2 instances under it.

Confidential, Dearborn, MI

Linux /System Administrator

Responsibilities:

• Evaluate, install, test, configure, maintain, tune, and troubleshoot Redhat Linux 4/5/6, Ubuntu 10/11 and Windows 2k8 & 2k12 operating system software and third party commercial off-the-shelf (COTS) products with primary responsibility being for the UNIX operating systems.
• Extensive use of Logical Volume Manager (LVM), creating Volume Groups, Logical volumes and disk mirroring across Linux and Ubuntu servers.
• Worked on Redhat Satellite Server for upgrading and patching Linux Servers.
• Worked on migrating data from EVA, XP to 3-PAR Storage on Linux.
• Installation and configuration of MySQL on RedHat Linux cluster nodes
• Package management using RPM, YUM and UP2DATE in Red Hat Linux.
• Package management using apt-get and dpkg in Ubuntu servers.
• Extensively worked on tools like Veritas Volume Manager (VxVM) and Veritas file System, Logical Volume Manager (LVM).
• Worked on Vertitas Netbackup software.
• Managed Patching and worked on Firmware Updates for Blades and Enclosures.
• Configuration of multi-pathing using multipathd.conf and EMC Powerpath.
• Experience in building Servers usingKickstart in Linux andManual installation.
• Configuration and administration of DNS, LDAP, NFS, NIS, NIS+ and Sendmail on RedHat Linux.
• Experience in implementing High Availability Solutions using VERITAS Cluster, HP Service Guard and RedHat Cluster Server.
• Extensive experience in configuring Global File System(GFS) and Zeta byte File System(ZFS).
• Installed various software like TWS, COBOL, NPUM/UNIFI, HPSA on Linux.
• Created luns in EVA and presented luns to Linux/Windows/Ubuntu Servers.
• Worked on migrating VMware to AWS using snowball and VM import/export.
• Good working experience with Redhat Satellite Server for upgrading and patching Linux Servers.
• Managed Patching and worked on Firmware Updates for Blades and Enclosures.
• Setup and configured KVM on Red hat and Xen and installed guest OS on KVM and Xen.
• Analyzed and troubleshooted issues with KVM.
• Analyze, troubleshooting, and resolve RedHat Linux, Ubuntu and Server HW, Network problems in a Production Server environment.
• Troubleshoot and resolve Windows OS related issues.
• Experience working with production and 24 x 7 on call environments.

Environment: RHEL 6.x/5.x/4.x, Ubuntu 10/11, IBM blade servers, Websphere 5.x/6.x, Apache 1.2/1.3/2.x, iPlanet, Oracle 11g/10g/9i, Logical Volume Manager, Veritas netbackup 5.x/6.0, SAN Multipathing (MPIO, HDLM, Powerpath), ESX/ESXi, IBM and HP series servers.

Confidential, Auburn hills, MI

Linux /Unix System Administrator

Responsibilities:

• Installation, Configuration and Administration of AIX 5.3, Solaris 9/10 and Linux (RHEL 4/5)
• Installed, Configured and Maintained Debian/RedHat Servers and Ubuntu at multiple Data Centers.
• Configured RedHat Kickstart server for installing multiple production servers.
• Configured, managed ESX VM’s with virtual center and VI client.
• Experience with KVM and AWS.
• Cloning and troubleshooting VM ESX/ESXi hosts and guest servers.
• Configuration and administration of DNS, LDAP, NFS, NIS, NIS+, Postfix and Sendmail on RedHat Linux/Debian Servers.
• Installed KVM hypervisor on Linus machines and created Virtual machines using KVM.
• Installed the specific KVM kernel modules.
• Installed the KVM packages with kickstart file.
• Configured application servers (JBOSS) to deploy the code.
• Hands on experience working with production servers at multiple data centers.
• Involved in writing scripts to migrate consumer data from one production server to another production server over the network with the help of Bash and Perl scripting.
• Installed and configured monitoring tools munin and nagios for monitoring the network bandwidth and the hard drives status.
• Automated server building using System Imager, PXE, Kickstart and Jumpstart.
• Planning, documenting and supporting high availability, data replication, business persistence, fail-over, fail-back using Veritas Cluster Server in Redhat Cluster Server in Linux.
• Automated tasks using shell scripting for doing diagnostics on failed disk drives.
• Configured Global File System (GFS) and Zetta byte File System (ZFS).
• Configured system imaging tools Clonezilla and System Imager for data center migration.
• Configured yum repository server for installing packages from a centralized server.
• Installed and configured Ansbile and created play books to automate simple tasks.
• Installed and configured DCHP server to give IP leases to production servers.
• Management of RedHat Linux user accounts, groups, directories and file permissions.
• Implemented the Clustering Topology that meets High Availability and Failover requirement for performance and functionality.
• Performance monitoring using Sar, Iostat, VMstat and MPstat on servers and also logged to munin monitoring tool for graphical view.
• Performed Kernel tuning with the sysctl and installed packages with yum and rpm.
• Installed and configured PostgresSQL database on RedHat/Debian Servers.
• Performed Disk management with the help of LVM (Logical Volume Manager).
• Configuration and Administration of Apache Web Server and SSL.
• Backup management Recovery through Veritas Net Backup (VNB).
• Password-less setup and agent-forwarding done for SSH login using ssh-keygen tool.
• Documented strongly the steps involved for data migration on production servers and also testing procedures before the migration.
• Provided 24/7 on call support on Linux Production Servers. Responsible for maintaining security on RedHat Linux.

Environment: RHEL 5.x/4.x, IBM blade servers, DELL serevrs, Websphere 5.x/6.x, Apache 1.2/1.3/2.x, Oracle 11g/10g/9i, Logical Volume Manager, Veritas netbackup 5.x/6.0, SAN Multipathing (MPIO, HDLM, Powerpath), VM ESX 3.x/5.x, Solaris,Ubuntu 9/10

Confidential

System Administrator

Responsibilities:

• Worked on Red Hat Linux 5, 6 and Cent OS.
• Worked on installing and configuring Windows operating systems (2003 & 2008)
• Hands on experience on vCenter, vSphere Client, ESX and OS installation & configuration.
• Proactively and independently resolve issues, yet also function well within a team.
• 24*7 working environment experience.
• Configured, tested, and managed software installs.
• Created and managed user group accounts and account permissions.
• Worked on AWS cloud instances and services.
• Installed and managed packages using YUM and RPM.
• Monitored system performance using top, ps, netstat, nmon, and cpuinfo to check CPU utilization, network traffic and memory usage.
• Worked extensively with Network File System (NFS) for storage.
• Creating logical volumes, extending the filesystems using LVM.
• Performed automated installations of Operating System using kick start for Red Hat Enterprise Linux 5/6.
• Patch Management, Package Installation/Upgrades and Kernel upgrades.
• Monitored System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
• Remote monitoring and management of server hardware.
• Extensively worked on hard disk mirroring and stripe with parity using RAID controllers.

Environment: HP Blade BL870C,890C i2. IBM pSeries p520, p570, p690 & RS6000, VM ESX 4.x/5.xRHEL 5/6, Cent OS, HP Blade c7000, c3000, HP ProLiant DL (360, 580 G7, 580 G5, 380 G4, G5 ), IBM ( 8840, 9115, 8877 and 7985)