SUMMARY

• 10+ Years of extensive experience in RedHat Linux / Solaris, AWS, Windows, Unix Administration on Sun, HP Servers for Mission Critical and Enterprise applications.
• Installation, administration, implementation, testing and maintenance of complex and heterogeneous networks consisting of Linux (Red Hat), Sun Solaris 8/9/10, SuSE, Windows.
• Installation, Configuration and Maintenance of Samba, Apache Tomcat, Web Sphere and Jboss servers in Sun Solaris and Linux environment.
• Expert in Configuring and administering Active Directory, Exchange Server 2007/2010, SQL server 2008 R2, IIS 6.0/7.0.
• Hardware configuration, installation and management on Sun, HP servers and Workstations.
• Configured ILOs and Console connections for HP and SUN servers.
• Worked on Installation and Configuration of High available IBM FileNet Connector.
• Experienced in system administration, System planning, co - ordination and group and user level management.
• Good working knowledge on Azure.
• Configuration, implementation and administration of NFS, NIS, DNS, and Sun Cluster and LDAP on Solaris and Linux environment.
• Understanding and troubleshooting skills with networking communications and protocols such as TCP/IP, NFS, DNS, SMTP, CCNA .
• Ability to perform firmware and operating system patching.
• Expertise in creating and managing Logical Volume Manager in Red Hat Linux.
• Expertise in Installation, Configuration of Package and Patch Management.
• Experience with Blade Logic project implementation for 2000+ servers including OS patching, provisioning custom reporting Development, BL packaging, Compliance reporting
• Experienced with installation, configuration of RAID volume management using Veritas Volume Manager and Solstice disk suit on Solaris Disk across & Quotas.
• Experience in Disaster Recovery and Planning.
• Deployed Docker Engines in Virtualized Platforms for containerization of multiple apps.
• Extensively worked on Automatic Scripting using shell scripts (bash, awk, sed).
• Experience with development tools and version control tools such as Confidential, Clear Quest, and Perforce.
• Tasked with both virtual and bare metal server builds
• Experience on backup and recovery software like Veritas Net backup 5.1 and 7.5 on Linux environment.
• Expertise in TSM, Data domain and Falconstor in large scale enterprise backup environment.
• Handling and generating tickets via the Remedy ticketing tool.
• Experience with configuration management and automation software such as Puppet and Chef.
• Experience in passing parameters to Control M job and creating job dependencies and Alerts.
• Maintained high availability of data using MC/Serviceguard, VERITAS cluster Server and Sun Cluster.
• Systems and network Planning and Administration.
• Backup and Restore Management like Veritas backup, Tape library and Disk library and EMC.

TECHNICAL SKILLS

Operating System: Solaris 10/9/8, HP-UX (10.20, 11.00, 11.11, 11.23), IBM AIX (4.3, 5.1L, 5.3L, 6.1), RedHat Linux (AS/ES 3/4/5), VMware ESX 4.X, Windows NT 4.0/2000/2003/ XP/vista, AutoSys.

Hardware: Sun Fire 280R/V 480/4800/3800/12 K/15K, TSeries, MSeries Server, Sun Enterprise 6500/5000/450/420 R,, HP 9000 K,L,N class server, IBM RS/6000, pSeries, Xserve’s, HP/IBM/Blade Servers.

VMware: VMware Infrastructure Client and VMware ESX Server 4.x/3.x/2.x.

Network Protocols/Services: DNS/Bind, Samba, TCP/IP, NFS, Telnet, DNS, LDAP, SSH, DHCP, NAT, LAN, WAN, ARP/RARP, FTP/TFTP, ifconfig, route, netstat, xinetd, HTTP.

Storage: SAN EMC Symmetrix 800/ DMX1000, 2000 & 3000, EMC CLARiiON 500, 600, 700, NetApp NAS 2000/ 3000 series

Databases: MySQL, PostgreSQL, SQLite, DB2, Oracle

Web /Application Server: Apache Tomcat, WebSphere, Weblogic

Automation Tools: Puppet, Chef, Kickstart, Docker, Kubernetes.

Mail Servers: SMTP, POP, IMAP, qmail, Sendmail, Postfix

Cluster: Veritas Cluster Server, MC/Service Guard, Sun Cluster

Languages: C, C++, Java, Shell, awk, Perl, Python

Security: SSH, SSL, IPchains, IPtables, Tcpdump, Wireshark, Tripwire, port scanners

PROFESSIONAL EXPERIENCE

Confidential, Naperville, IL

Sr.Linux/Unix Administrator

Responsibilities:

• System administrator responsible for maintaining Linux/Unix operating systems such as RHEL, UNIX, and Solaris servers.
• Provided L2/L3 Linux AHT Support (Above Hypervisor Support) to more than 500+ Customer Servers running RHEL 5, 6, 7.2
• Installations using PXE boot Maintenances and troubleshooting hundreds of Linux Servers.
• Adding/expanding new storage to existing/new systems using LVM, Veritas Volume management VXVM and Vxfs on Linux/SUN servers.
• Worked on Solaris servers supporting all the OS administration, application and hardware issues.
• Very good working experience on Redhat Satellite Server upgrading and patching.
• Building Linux servers by using VMware ESX 3.0 and also involved in channels and pushing the packages in RedHat Satellite Server.
• Responsible for leading the effort through full life cycle of the Upgrade project for Oracle and SAP environment from AIX P5 to P6 and AIX 5.3 to 6.1.
• Responsible for installation administration of AIX 4.3, 5.1, 5.2, 5.3, 6.1 and 7.1.
• Configured and Administered HACMP 5.3, 5.4, 5.5 IBM PowerHA.
• Installation, Configuration and administration of LPAR's.
• Installation, administration of VIO Server and VIO client LPAR's.
• Migrating AIX OS from AIX 4.3 to 5.1, 5.2 and 5.3, 5.3 to 6.1 on models of p - series hardware.
• Implemented upgrade of servers using Redhat Satellite Server.
• Setup NFS file systems and shared them to clients.
• Planning, Installation, administration, Trouble shooting of HP-UX (IA64) Servers
• Troubleshooting and configuring NAS and NFS mount points.
• Troubleshooting network, application, and server related issues.
• Scheduling of automatic repetitive Jobs, and Shell Scripts with Crontab.
• Monitoring Virtual memory, Swap management, and Disk and CPU utilization by using various monitoring tools.
• Monitoring and configuration of various servers using Puppet modules.
• Primarily applications support, config changes, troubleshooting server issues for QA/Stage/Production, monitoring issues through systems like Jira, Zabbix.
• Implemented rapid provisioning and life cycle management for RedHat Linux using kickstart and puppet.
• Improved Linux OS deployment and management by creating customized kickstart scripts and installing puppet.
• Patch updating of HP-UX servers and HPC cluster.
• Used puppet for central management of Linux configuration files and software package management.
• Implementing RAID 0, 1 and 0+1 levels using Veritas Volume Manager.
• Created RPM packages using RPMBUILD, verifying the new build packages and distributing the package.
• Installed Red Hat Linux on Intel Machines, Configured File Systems and Raw - Devices.
• Installed various RPMS on Linux.
• Involved in mass migration of data form old EMC Storage subsystems to new Subsystems.
• Installed and Configured Veritas Net backup client and advanced client software's in Production servers.
• Administer, maintain and troubleshoot EMC Clarion arrays.
• Creating volumes, LUNs and implementing different RAID levels on the same
• Configured and created snapshots of clones of LUNs using EMC Snap View
• Implemented replication of data within sub storage systems using SAN Copy and Mirror View software.

Confidential

Linux Engineer

Responsibilities:

• Installation, Maintenance, Administration and troubleshooting of Physical and Virtual server builds for Redhat/Oracle Linux.
• Experienced with installation of packages, patches, maintenance &RPM updates on Red Hat Linux.
• Experience in setting up IP Bonding for Veritas Cluster, configuration and File System maintenance.
• Expert in Upgrades, installs, configuration and administration security and monitoring tools on Linux.
• Experience in installing RedHat/Oracle Linux - 5/6/7.
• Provided 24/7 on-call rotation to the team and worked until issue was resolved.
• Used ITRS to monitor alerts during on-call rotation, any new issues were documented through JIRA and Service Now ticketing tools.
• Cleaned up space on filesystems crossing 90% threshold, using the du command to trace it down.
• Setup NFS file systems and shared them to clients.
• Troubleshooting network, application, and server related issues.
• Created RPM packages using RPMBUILD, verifying the new build packages and distributing the package.
• Dealing with user id deletion with removing entries from CRONTAB.
• Creating roles for users and adding them in proper groups using Centrify and Active Directory (AD).
• Extensive experience in scanning and assigning LUNs for the multipath configuration file.
• Installed/Configured/Managed Puppet Master/Agent. Wrote custom Modules and Manifests, downloaded pre-written modules from puppet-forge. Upgradation or Migration of Puppet Community and Enterprise.
• Worked with Puppet Enterprise tool for patch updates and stopping and starting various services and daemons.
• Used Puppet to deploy new Oracle user id creations and deploying the syslog/rsyslog services to a balabit server for audit purposes.
• Applied VMWare tools-patch updates for the virtual machines.
• Troubleshoot to bring up Linux servers through the maintenance mode and through the Netback up tool.
• Extensive experience in doing over 200 V2V’s from one nfs-data store cluster to another.
• Extensive experience in migrating 400 P2V’s from one datacenter to another using the VMWare converter tool.
• Extensive experience in the concept of LVM, User & System Resource Management and Job Scheduling.
• Responsible for patching and upgrading RHEL servers from 5.x to 5.11 and 6.x to 6.5.
• RPM and YUM package installations, patch and other server management.

Confidential, St. Louis, MO

AIX/Linux Administration/Engineer

Responsibilities:

• Installation, Configuration and Maintenance of VIO Servers versions 1.5, 2.1, 2.2
• Extensive experience in the concept of LVM, User & System Resource Management and Job Scheduling.
• Experience in Hardware and Software refreshes on the server.
• Performed common system administration task including adding users, creating file systems, configuring volumes weekly mksysb.
• Administered Linux servers Linux (Red hat - RHEL 3/4/5), for several functions including managing Apache/Tomcat server, mail server, MySQL database, and firewalls in both development and production.
• Setup NFS file systems and shared them to clients.
• Worked on SAN Migration from EMC Clarion to DMX for AIX/Linux
• Setup NFS file systems and shared them to clients.
• Troubleshooting and configuring NAS and NFS mount points.

Confidential, Boca Raton, Florida 

Jr. Linux/Unix Administrator

Responsibilities:

• Installed, upgraded and configured Redhat linux 5.x/6.x and IBM AIX 5.x/4.x. This included Kickstart Installation, NIM Installation and CD media.
• Installed/Configured Websphere and other Application Servers.
• Installed, configured and administration of Application Server 6.x, Network Deployment, MQ 5.x, 6.0, Jboss 4.x on Linux, AIX.
• Made custom profiles for the AIX POWER VMS on the frames by using Virtual Fiber channel adapters, Virtual Networks on P770.
• Installed Fix packs on Application Server and added patches using Update installer.
• Installation and configuration of LVM & HACMP on various AIX Servers..
• Worked with Oracle Database Administrators and reviewed the required maintenance tasks.
• Installed RPM packages on Linux Servers.
• Generated HTTP plug-in config and configured with web servers by doing manual edits.
• Used SMIT and LVM commands for administration and Disk Management for IBM AIX based Servers.
• Configured and administrated POWER VMs.
• Configuration of DHCP Server on Linux to get the IP Addresses Dynamically.
• Configuration and administration of DNS, LDAP, NFS, NIS, NIS+ and Sendmail in Red Hat Linux, IBM AIX and Solaris.
• Configured SAMBA to get access of Linux shared resources from Windows.
• Day to day Linux and AIX hardware support, problem and change ticket implementations, composing scripts, OS builds & upgrades along with day-to-day Storage & UNIX Administration.
• Tested and implemented Root disk mirroring.
• Taking Backup and restoring the data using mksysb.