SUMMARY:

• Over 7+ years of IT industry experience as a System Administrator, Dev Ops and Production Support of various applications on Red Hat Enterprise Linux, Sun Solaris and Windows environment.
• Experience in installing, configuration, support, upgrading and patching Linux servers using Red hat Satellite Server and also worked on registering different client servers and involved in building channels and pushing the packages to master Red hat Satellite Server
• Experience in installation and management of network related services like DNS, Apache, LDAP, SAMBA, HTTPD, VSFTP, PROFTP,SMTP, SQUID, and Active Directory.
• Experience in Installing, configuring and maintaining Samba, Web Sphere & Web Logic Application Servers, Nagois and Chef.
• Experienced in Amazon EC2 setting up instances, virtual private cloud (VPCs), and security groups.
• Expertise in different versions of Cloudstack,Openstack,Vmware and other private clouds.
• Experience in Installation of VMware ESX server and creation of VMs and install different guest OS.
• Responsible for deploying enterprise applications from Admin console and enabling security using LTPA and LDAP for admin console and application components on both UNIX and windows platforms.
• Expertise to handle tasks in RedHat Linux includes upgrading RPMS using YUM,kernel, HBA driver, configure SAN Disks, Multipathing and LVM file system.
• Well experienced in hands on, Kickstart (PXE) and Jumpstart installation of various fully and mostly POSIX compliant systems like Solaris 9 &10, RedHat 4,5 &6, CentOS 5 &6 and open SUSE 11 & 12.
• Performed P2P and P2V migrations across OpenVZ, VMware and Amazon EC2 environment.
• Hands on experience in Puppet deployment, dashboards configurations and PuppetDB.
• Experience working with DHCP/LDAP/NIS/NFS services.
• Support enterprise Storage Area Networks (SAN), and Tape Backup/Restore technology in a mission critical environment.
• Extensively worked on tools like Veritas Volume Manager (vxvm) and Veritas file System.
• Good experience in setting up of RAID0, RAID1 (mirroring) and RAID5 for data redundancy using Veritas Volume Manager and Veritas File System on Sun Solaris.
• Core expertise with Sun Cluster and Sun Volume Manager maintenance and troubleshooting.
• Strong knowledge in Weblogic 5.1/ 6.1/7.0/8.1/9.1/9.2 Application Server and very good experience in Weblogic 6.1/7.0/8.1/9.1/9.2 Clusters.
• Installation Configuration and Administration of VERITAS Volume Manager, VERITAS Cluster Server 5.0, VxFS, Disk arrays in SAN environment and extensive experience in creating and managing Logical volume manager (LVM) in Red - hat Linux.
• Experience in using various network protocols like HTTP, UDP, POP, FTP, TCP/IP, and SMTP.
• Experience in storage technologies like Net Backup, Hitachi, EMC storage, NetApp, SAN.
• Software package deployment, disaster recovery/contingency of business management.
• Expertise in implementation and designing of disaster backup and recovery plan.
• Hands on experience in Puppet deployment, dashboards configurations and PuppetDB.
• Experience in Installation of Oracle, MS SQLServer and MYSQL.
• Worked with Database administrators to tune kernel for Oracle installations on RedHat Linux and Solaris Servers.
• Very good understanding in the concepts and implementation of high availability, fault tolerance, fail over, replication, backup, recovery, Service Oriented Architecture( SOA) and various Software Development Life Cycle(SDLC) methods.
• 24/7 support for issues arising in production for mission critical and enterprise level applications.

TECHNICAL SKILLS:

Operating Systems: Red Hat, Fedora, SUSE, Debian, Ubuntu, CentOS, IBM-AIX, Sun Solaris, and HP-UX, Windows - NT/ 2000/2003/2007 Server/XP Pro/Vista/7

Hardware: DELL (PowerEdge), HP (ProLiant G7 & G8), IBM BladeCenterSun-Fire X-series and T-series Enterprise Servers

Tools: Weblogic 10.x/9.x/8.x, Websphere, Apache HTTP/Tomcat/Jboss, VERITAS Volume Manager, VERITAS Net backup, Cluster server 3.5 &4.1, Sun Cluster 2.x & 3.x, Nagios, Splunk, Web Methods, Puppet, Chef,Ansible,Cloudstack,Vmware

Languages: Shell scripting, Perl, C, C++, JAVA

Networking: TCP/IP, NIS, NFS, DNS, DHCP, LAN, FTP/TFTP, SSH, SFTP, ARP

RDBMS: ORACLE, MySQL, PostgreSQL and MS SQL Server

Storage: LVM, SCSI, SATA, Ext 2, Ext 3, Ext 4 and NAS(NFS, SAMBA, RAID 0/1/5) and SAN(iSCSI, FibreChannel) NetApp filers.

PROFESSIONAL EXPERIENCE:

Confidential, Phoenix, AZ

Sr. Linux Administrator/DevOps Eng

Responsibilities:

• Supported Linux environment with around 2500+ servers running Redhat Linux.
• Configured cluster pools, enabled HA and DRS features using vSphere 5.x.
• Worked on Virtualizing RedHat servers using vSphere 4.1/5.0 and managed ESX servers using vCenter and also worked with ESX Cluster and vMotion.
• Wrote and executed various MYSQL database queries from python using Python-MySQL connector and MySQLdb package
• Used Python and Django to interface with the jQuery UI and manage the storage and deletion of content.
• Installed, Configured and Maintained RedHat Linux (5.x, 6.x & 7) Kickstart and Solaris x86 VM’s.
• Supported 200+ AWS cloud instances running Ubuntu, Redhat and Windows environments.
• Launching Amazon EC2 Cloud Instances using Amazon Images (Linux/ Ubuntu) and Configuring launched instances with respect to specific applications.
• Experienced in Amazon EC2 setting up instances, virtual private cloud (VPCs), and security groups.
• Setting up databases in AWS using RDS, storage using S3 bucket and configuring instance backups to S3 bucket
• AIX installation and maintenance and all the required upgrading
• Implemented DNS systems using BIND, Route53(AWS), powerDNS
• Involved in P2V Linux migrations on VMWare ESX 5 Cluster environment and performed physical and Storage vMotion and experience using tools like vCenter and vSphere.
• Monitoring incident alerts using HP Open View Service Desk and Open View Operation (OVO).
• Installing the agent bundle that comprises of OVO and OVPA based on the requirement.
• Involved in SNMP Network management
• Developed and supported the software Release Management and procedures
• Performed all necessary day-to-day subversion/GIT support for different projects
• Developed multiple system maintenance scripts both BASH and Korn Shell.
• Configuring servers,router and switches to send SNMP traps to Network Management System (Nagios).
• Automation of various administrative tasks on multiple servers using Puppet and Chef
• Installation and configuration of backup clients like Veritas Netbackup on Linux servers.
• Performed migration of data from Xymon to Nagios Monitoring.
• Installed and Configured Nagios client on 2000+ servers.
• Experience working with HP Openview client and server configuration.
• Experience in writing scripts to automate jobs and debugging scripts.
• Experience in using protocols like NIS, NFS, SSH, SFTP & DNS.
• Expertise DevOps Support/Monitoring
• Performed SAN Migration on RHEL and solaris servers using Double Take tool.
• Data migration at Host level using Red Hat LVM, Veritas Volume Manager and Solaris LVM
• Installation and support of various applications like Apache 2.x, Weblogic server 10, WebSphere 6.1, Jboss 4.x, Oracle 10g, Mysql on Solaris 10.
• Mirroring of root disks using Hardware Raid Controller on HP & Dell HW.
• Troubleshooting and performance tuning of various systems problems such as application, network and hardware related issues.

Environment: Red-Hat Enterprise Linux 5.x, 6.x, 7.x, AWS, Solaris 9 & 10, SAN (Netapp), NAS, Veritas Netbackup, Windows 2008, 2012, Nagios 3.5, Shell programming, Jboss 4.x, JDK 1.5,1.6,Oracle Weblogic, IBM WebSpehere, VMware ESX 4.x, vSphere 4.x & 5.x

Confidential, City of NJ

Sr. Linux Administrator/AWS

Responsibilities:

• Deployment, configuration and administration of VMware VSphere 5.1 environments as well as Red Hat (5.x and 6.x) and Oracle Enterprise Linux (OEL) environment and installed required binaries and packages.
• Wrote Python scripts to parse XML documents and load the data in database
• Installation and configuration of Oracle RDBMS 11.2.0.3 RAC on Oracle Enterprise Linux
• Configured and monitored Disk mirroring, stripping using LVM
• Managed Disk File Systems, server Performance, Users Creation and granted file access Permissions.
• Used Python programming and language to develop a working and efficient network within the company.
• Created Python notebook apps (Anaconda software stack) for collaborating with others on data processing components.
• Created groups, added Users ID to a group as a primary or secondary group, removing Users ID from a group as well as adding users in Sudoers file.
• Incharge of the AIX platform used by large IT firms to design solutions for their clients
• Performed administration tasks related to DNS, BIND, DHCP, NIS, LDAP.
• Setup and configured DHCP, Kickstart, and PXE servers for automated system builds.
• Configured servers, install patches, and support the virtual infrastructure
• Worked on the configuration of server monitoring tool like Nagios XI.
• Configured Resource Pool, V Motion, Alerts, Alarms, NTP, HA, DRS and deployed virtual servers using template.
• Migrate Physical Servers to Virtual Serves using VMware Converters and migration of Virtual Machines using V-Motion.
• Configuration and Installation of JBOSS 5.x on Linux servers.
• Installation/Activation of F5 Load balancers, configure routing logic, creation of new service pools, members, virtual servers etc.,
• Installed and configured Apache Webserver, edited httpd.conf settings and installed mod proxy for load balancing.
• Deployed Java applications/Web-services using CI/CD tools like Jenkins, Puppet in standalone and clustered environments
• Installed JON Agent and configured dashboards, alerts for JVM monitoring
• Installation and configuration of Web Services and JBoss4.0 Application Server on Solaris and Linux boxes.
• Installed and configured JBoss application servers for DEV, QA and PROD systems.
• Deployed application from console of JBoss Eap 5.1 as well as done the hot deployment and configured Apache for JBoss domains with virtual servers.
• Performance tuning included tuning the existing heap values, DB Connection settings etc.
• Created Templates from VM’s, deploy VM’s from templates and allocate resources
• Setting up Users and Groups for access to the Virtual Center.
• Migrated VM from one LUN to another LUN using Storage V-Motion.
• Performance tuning of VMware servers, Virtual sessions and management of servers resources between Virtual Machines.
• Managed shared NFS files system, mounting and unmounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services.
• Worked on configuration and administration of LVM as extending Logical Volume and Physical Volume Size .
• Worked on iLO and iDRAC setup and configuration.

Environment: Red Hat Enterprise Linux 5.x, 6.x, LVM, JDK 6.x and 7.x, HITACHI, EMC, VMware VSphere 5.1, DNS, DHCP, DIG, SNMP, SMTP, Ethernet, netstat, NFS, NIS, nslookup, TCP/IP, tcpdump, Korn shell, Cisco switches & routers, VLAN, Fiber Channel, Nagios XI, Perl, Bash, Tomcat and Apache and JBoss Eap 4.x.5.x

Confidential, St. Louis, MO

Sr.Linux Systems Administrator

Responsibilities:

• Installed and configured several hundred Red Hat Blade and VMware ESXi 4.1, 5& 5.5 Virtual Environment.
• Configured Red Hat Cluster Nodes for any legacy applications and verified the daily health check on the Cluster Nodes.
• Assisted in physically installing, racking and cabling new BM Blade Center S and Cisco UCS 5108 Chassis environment.
• Installing and configuring Red Hat Enterprise Linux 5, 6.1 using kick start servers and virtual
• Media based installs on several hundred Cisco UCS B200 /B250 and BM Blade Center S as required for UAT/Production Oracle Web logic. Red hat JBoss, Oracle Enterprise Database and MySQL Database Server requirements.
• Responsible for installation, Configuration and administration of Oracle10g/11g database on SCO Unix, Linux and Windows 2003 Servers and also an integral part of the backup and recovery.
• Installing and updating packages using YUM (custom YUM servers/repositories) and Red Hat Satellite Server.
• Maintain, grow and improve the TVX Splunk environment and Support large-scale deployments across multiple datacenter
• Configured and Administered Apache, VSFTPD services, MYSQL and Tomcat.
• Configured various alerts, captured support logs and configured resource pools utilizing Cisco UCS Manager.
• Configured and deployed patches, upgrades, bug fixes on both physical and virtual Red Hat Linux servers using satellite servers.
• Implemented rapid provisioning and life cycle management for Redhat LINUX using kickstart
• Implemented in VMX, IBM
• Implemented chef configuring the Servers
• Expertise in security hardening (iptables/selinux) major Production Servers, and compiling, building and installing web server based Linux tools.
• Experience in performing, uploading and upgrading new firmware on the Interconnects and Chassis
• Familiarity with Java-based server applications & logging framework
• Proficient in providing support on the deployed Red Hat Enterprise Linux & Sun Solaris servers from both operating system level and application Level.
• Expertise in working with MySQL databases, Apache Web server, Tomcat Application Servers
• Troubleshooting any performance or configuration issues with MySQL and Oracle.
• Expertise in hardening, Linux Server and Compiling, Building and installing Apache Server from sources with minimum modules.
• Extensive experience in network management TCP/IP, NIS, DNS, NFS, VLAN.
• Experience in database replication using OCFS2 file system with oracle 10g and 11g database
• Experience in deploying RHEL 5.x, 6.1 in a blade environment.

Confidential, Atlanta, GA

Sr. Unix/Linux Administrator

Responsibilities:

• Expertise in creating VM Templates, cloning and managing Snapshots.
• Worked on Grub, PXE boot, Kickstart, Packages, Yum, RPMs, LVM, Boot from SAN, filesystem configuration
• Configure dynamic and static network settings for IPv4 and filter packets, Review file system management concepts, removable media and configure NFS shares with AutoFS.
• Secure migration experience on Amazon AWS private cloud via encryption and tokenization.
• Performed system performance monitoring, created alerts and benchmarking for performance analysis on all application & production servers.
• Performed administration tasks related to DNS, BIND.
• Experience configuring Open LDAP and setting up clients for Open LDAP.
• Developed multiple shell scripts for system monitoring and converting raw data into Splunk format.
• Configured Java agent for monitoring PHP, .Net, Apache, and Glassfish.
• Upgraded Splunk application from 5.0.7 to 6.1 and also have expertise in configuring Forwarders on Splunk, installing and using of applications on splunk, performing splunk searches.
• Involved in configuring network bonding and troubleshooting networking issues
• Installed and configured HP OpenView tools
• Enable Fault Monitoring by installing Base OS templates and custom monitoring templates.
• Application process monitoring using monitor templates.
• AIX installation and maintenance and all the required upgradin
• Installing and configuring snmp on 500+ servers.
• Setup monitoring cpu,memory,http checks on the 500+ servers.
• Worked on generating and consolidating weekly Tripwire Reports.
• Provided support on applications like Splunk and Web-Methods and major Cloud applications like Cloudstack, Vsphere and DevOps.
• Expertise DevOps Support/Monitoring
• Working in war-room, providing continuous technical support throughout release and production period.
• Expertise in handling crisis during heavy load on servers and maintaining zero downtimes.
• Monitored server and application performance & tuning via various stat commands (top, sar, iostat, vmstat, netstat, mpstat, prstat, nfsstat, prtconf, prtdiag, iostat, top, printmgr, hpimliview, dmidecode, smc etc) and tuned I/O, memory etc for SUN Solaris and RHEL Servers.

Environment: Red-Hat Enterprise Linux 5.x, 6.x, Cloud Stack, Solaris 8, 9 & 10, SAN, NAS, NIS, EMC Avamar, Windows 2003, 2008, Shell programming, VMware ESX, JBoss, Splunk, IBM TSM Tivoli Storage Manager 5.3.4, IBM Tape Library 3584 with LTO 3580 tape drives.

Confidential, Minneapolis, MN

Linux Administrator / System Analyst

Responsibilities:

• Installation Red hat Linux Enterprise Server 5/6 on Dell and HP x86 HW.
• Installed and configured Solaris 10/11 on Sun T and M Series servers Mirrored root disks on all the servers by using ZFS & VxVm.
• Installation of Web logic, upgraded to service pack updates, installed BEA patches, configuring and creation new domain & services starting & stopping.
• Planning and implementing Backup and Restore procedures using Ufsdump, Ufsrestore, Tar” and “Cpio”.
• Installed and configured the Red Hat Linux 5.1 on HP-Dl585 servers using Kick Start.
• Monitoring day-to-day administration and maintenance operations of the company network and systems working on Linux and Solaris Systems.
• Configured the NIS, NIS+ and DNS on Red Hat Linux 5.1 and update NIS maps and Organize the RHN Satellite Servers in combination with RHN Proxy Server.
• Installed and configured the RPM packages using the YUM Software manager.
• Configured logical volumes using logical volume manager (LVM) and also configured mirroring.
• Production support of Apache, PHP, My SQL, Tomcat including installation, configuration, management and troubleshooting.
• Implemented DNS systems using BIND, Route53(AWS), powerDNS.
• Involved in developing custom scripts using Shell (bash, ksh) to automate jobs.
• Defining and Develop plan for Change, Problem & Incident management Process based on ITIL.
• Networking communication skills and protocols such as TCP/IP, Telnet, FTP, NDM, SSH, rlogin.
• Security auditing using Korn programming. Shell Programming for day to day system administration.
• Kick start the Red Hat Linux RHEL 6 on HP Power edge servers and Cisco UCS servers.
• Deploying Veritas Clusters and Oracle test databases to implement disaster recovery strategies, ensuring uninterrupted availability of the global systems.
• Configured Logical storage Manager (LSM) for root disk encapsulation and implemented root disk mirroring for fault tolerance.
• Experience in BIOS UPGRADE and OS installations and configurations and maintenance
• Worked on JBoss clustering, set up new configurations for JDBC providers, DataSources, connection pools, Connection factory settings, Virtual hosts etc.
• Installed and configured JMX-based services on JBOSS.
• Configured JNDI and JMS on JBOSS.
• NIS, NFS, AUTOFS, NTP Configuration and Administration.
• Define Mapping Servlets, Filters, and Session Configuration on JBOSS.
• Production support of Apache and JBoss including installation, configuration, management and troubleshooting. Installation and monitoring of Veritas Volume Manager, VeritasNetBackup and Veritas Cluster Server on SAN Environment.
• Worked on the administration of the JBoss 4.2.2 servers including installation and deployments.
• Extensive experience in Security Patching.
• Also coordinating with storage team and networking teams

Environment: REDHAT LINUX 4.x,5.x,6.x, SUN fire T2000, T4k, M 5000, JBOSS AS 4.x,and Veritas volume manager5.x, Veritas Net backup 6.5, Web logic 10.x.,Oracle 10G/ 11i/RAC, HP 9000 Superdome SX1000, Volume Manager, VMWare ESX SERVER,, Shell scripting, SAN/Mc Data Switches, puppet, Brocade Switches, chef, RED hat satellite server

Confidential

Linux Administrator / System Analyst

Responsibilities:

• Setup a couple of hundred VM's running CentOS to be used for web,database,application, mail, ftp, monitoring and git repositories.
• Installed and configured Red Hat Linux Kickstart and Solaris jumpstart Servers.
• Used Python programming in Linux platform to design the front-end portion of the plug-in.
• Wrote python routines to log into the websites and fetch data for selected options.
• Used python modules such as requests, urllib, urllib2 for web crawling.
• Designs, configures, implements, and maintains UNIX hardware and operating system environments including; AIX, HP-UX, and Solaris.
• Worked on redhat 4.x and performed daily tasks using CRON scheduler and automated it.
• Discussed and planned the development issues with the team members and the lead.
• Used languages like html, JavaScript and Ajax to create the back-end portion of the plug-in.
• Daily tasks such as taking data backups, cleaning junk content and updating software.
• Configuration of Hardware and Software RAID on Digital & Sun Servers.
• Developed entire frontend and backend modules using Python on Django Web Framework.
• Installation of Oracle Patches and Troubleshooting, Creating and modifying application related objects, Creating Profiles, Users, Roles and maintaining system security.
• Configuration and maintenance of NIS, NFS, DHCP and DNS Servers on Solaris.
• Administrative tasks such as System Startup/shutdown, Backup strategy, Printing, Documentation, User Management, Security, Network management, dumb terminals and devices carried out.
• Responsible to handle the Server Administration and Asterisk Server Installation and Configuration in Linux. .
• Worked as part of Testing Team in Application testing using Manual methods and Scripts.
• Installed and implemented NAS with RAID 1 and RAID 5 configurations.
• Monitored load and performance on the infrastructure and added capacity as needed.
• Installation, configuration and management of postgresql & mysql database servers.
• Client interaction for requirement gathering, so as to design and plan the software and hardware infrastructure.
• Familiar with Disk Management Utility. Hands on experience in file system creation and file system management.

Environment: Red-Hat Enterprise Linux 8/ 9/ AS3.0/ AS4.0, Solaris 8 & 9, AIX, NFS, NIS, Windows NT 4.0, VERITAS Netbackup, HACMP, WebS