SUMMARY:

• 10+ years of experience specialized in System Administration working on Redhat Linux, Solaris, SUSE Linux, AIX, Cent OS, HP - UX 10.2x,11.3x. Oracle Enterprise Linux and Windows environments.
• Involved in installation, configuration and administration of RHEL 4.x/5.x/6.x/7.1, SLES 10/11/12, and AIX 5.3,6.1 and 7.1).
• Experience in System Administration, System Builds, Server builds, Installs, Upgrades, Patches, Migration, Trouble shooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning.
• Experience with Pivotal Tracker.
• Install, configure and support of Tomcat 5 & 6; configuration of virtual hosts containers into server.xml file
• Created playbooks for OpenStack deployments and bug fixes with Ansible.
• Deployed and tested playbooks in Docker containers before pushing changes in Git.
• As part of Cisco Cloud team fixed issues related to OpenStack components Nova, Glance, Neutron, Keystone,
• Debug and resolve Pre-Post OpenStack deployment failures.
• Excellent hands on experience in OpenStack Environment Implementation.
• Implemented Cloud Infrastructure as a Service environment using open source technology OpenStack to enable portability of cloud services across hybrid cloud environments.
• Experience in Operational Intelligence using Splunk
• Good knowledge about Splunk architecture and various components (Indexer, Forwarder, Search heads, Deployment server), Heavy and Universal forwarder, license model
• Expertise in Preparing, arranging and testing the Splunk search strings and operational strings
• Worked on application based on technologies Java/J2EE/EJB's/ Struts/Hibernate using databases like Oracle and SQL Server and MYSQL 5.5.
• Developed modules, manifests, classes to deploy database servers, J2EE web applications, web servers.
• Worked on large datasets to generate insights by using AppDynamics
• Experience in developing AppDynamics queries and dashboards targeted at understanding application performance and capacity analysis
• Experience in working with AppDynamics authentication and permissions and having significant Experience in supporting large scale Splunk deployments
• Expert in installing SAppDynamics apps for Linux and UNIX environments
• Knowledge on Configuration files in AppDynamics (PROPS.CONF, TRANSFORMS.CONF, OUTPUT.CONF, INPUTS.CONF, INDEXES.CONF, DEPLOYMENTCLIENT.CONF) Time chart attributes such as span, bins, Tag, Event types, creating dashboards, reports using XML
• Monitor server applications, use monitoring tools OEM, AppDynamics log files to troubleshoot and resolve problems
• Involved in multi-tiered J2EE design utilizing MVC architecture (Struts Framework) and Hibernate.
• Optimized the inventory levels at retail stores and transport operations using advanced resource planning modules using J2EE and RDBMS technologies.
• Worked on various scripting language like Bash, Shell, Perl and Python.
• Creation& Maintenance of user/service accounts & passwords & profiles, home directories, initialization of files, groups' creation and management, setting file permissions, customizing shell environment setup for users.
• Experienced working script in shell.
• User account management, worked with Perl, shell scripting (bash) to automate administration tasks.
• Involved in troubleshooting shell scripts.
• Extensive use of Koran shell, Bash for scripting.
• Support of Apache httpd.conf configuration for creating virtual hosts and much of the same for Tomcat Jakarta using the server.xml configuration file.
• Web based experience with Apache, Tomcat in supporting live websites and changing live content on demand and restarting the web process. Migrating over websites from one server to another with backups and rsync. Other related webserver application experience working with Netscape Enterprise Server, Apache, IBM HTTPD, iPlanet, LDAP and Oracle OAS Client installs
• Worked on Apache tomcat and Weblogic Server configuration and implementation etc.
• Strong experience with cloud infrastructure of AWS (Amazon Web Services), IAM, Azure, Pivotal Cloud foundry (PCF) and computing AMI virtual machines on Elastic Compute Cloud (EC2).
• Experience with AWS opswork, AWS Lambda, AWS code deploy, AWS cloudformation and Pivotal cloud foundry (PCF).
• Good knowledge to analyze, diagnose, replicate, troubleshoot, and resolve standard to highly complex technical customer reported issues around Pivotal Cloud Foundry.
• Executed PaaS platform with Pivotal Cloud Foundry (PCF) on VCE VBlock IaaS platform as a pilot PaaS platform for Kaiser Permanente.
• Design/Plan/Architect Pivotal Big Data Suite roadmap including use of the HDP / HDF Hadoop technology stack
• Excellent experience and knowledge with designing installing and implementing VMware ESX server, VMware virtual center, setting up V-Motion, HA, DRS.
• Installation and configuration of Oracle RAC 11g on Solaris, AIX and Red Hat cluster nodes.
• Proficient in shell scripting (Ksh/Csh/bash/Sed/Awk), PERL, Java Scripts for Oracle and Java Applications and XML.
• Assist applications team in deploying and troubleshooting Weblogic, Websphere, siteminder Eclipse Tomcat Apache server, Sybase db2 and oracle in development and production environment.
• Apache tomcat, Jboss, siteMinder and Identity Minder administration and support.
• Supporting Applications teams for installing Splunk, Arcsight, Siteminder, LDAP, MariaDB,Bladelogic,Apach.
• SQL (PostgreSQL) and No-SQL (Cassandra) database management.
• Experience with specific database management languages including SQL.
• Working with MS SQL/Oracle Databases.
• Databases: MS SQLserver, SQL, ODBC, ADO etc.
• Providing Development and Production support for DB2 AIX and Linux.
• Providing solutions and support for 24/7 DB2 LUW databases
• Building out DB2 databases for e-commerce platform
• Experience in installing, configuring, supporting and troubleshooting Unix/Linux Networking services and protocols like NIS, NIS+, LDAP, DNS, NFS, DHCP, NAS, FTP, SSH and SAMBA.
• Well versed in configuring Volume Groups and Logical Volumes, extended logical volumes for the system growth needs using Logical Volume Manager (LVM).
• Experience in administering, Installation, Configuration, Backup, Recovery, Maintenance, Support of Sun Solaris & Linux.
• Good Knowledge of using different protocols like FTP, SFTP, SSH, HTTP, and HTTPS
• Linux Server setup and Installation for HTTP(apache), FTP, etc
• Worked with DBAs on installation of RDBMS database, backups and restoration and log generation Configured and maintained TSM Clients on TSM 5/4 servers running AIX 6.1 and IBM HTTP Server.
• Experience in Installing, upgrading and configuring Red Hat Linux 4.x, 5.x, 6.x using Kickstart Servers and Interactive Installation.
• Experience in Installing, upgrading and configuring SUN Solaris 2.6, 7, 8, 9 and 10 on Sun Servers using Jumpstart Servers, Flash Archives and Interactive Installation.
• Worked with Database administrators to tune kernel for Oracle installations.
• Experience with Veritas Volume Manager (VxVM), Veritas File System (VxFS), HP MC Service Guard, Veritas Net Backup, Veritas Clustering with SAN, NAS environment.

TECHNICAL SKILLS:

Operating Systems: RHEL Solaris Release, IBM-AIX 5.X, HP-UX, Windows 98, Windows 2000, windows 7,8 and NT.

Hardware: HP Proliant, Blade servers, Sun Servers E450, E3500, E4500, E5000, E6500, E10k, E15k, E25k, Sun Ultra's, V210, V280, V490, V880, V6800 SUN Ray (1g Ultra Thin Client) SUN Desktops (SPARC 10, 5), DMX3 and DMX4 Storage Arrays, F5, HP 9000, HP Net Server L series.

Software: Veritas Volume Manager 3.5/4/5, Veritas File System, Veritas Cluster Server 3.5, Veritas NetBackup 6.0, MS-Office/MS-Project.

Web/ Application Server: Tomcat, Apache, DB2, Oracle, JBoss, J2EE.

Network Protocols: TCP/IP, UDP, LAN, WAN, NFS, LDAP, DNS, SANDHCP, DIG, DNS, SNMP, SMTP, Ethernet, IOS, netstat, NFS, NIS, nslookup, RIP, OSPF, BGP, TCP/IP, and tcpdump.

Cluster Environment: Sun Cluster Servers 2.2, 3.1, 3.2 and VERITAS Cluster Servers 4.1.

Programming Languages: C, SQL, HTML, PHP, XML, Perl and Shell Programming, JSP, Python

Virtualization: VMware and Vsphere, and VIOEducation

WORK EXPERIENCE:

Sr. Linux/Unix/Devops/Vmware/Windows/Openstack Systems Engineer

Confidential

Responsibilities:

• Administration of RHEL 6.x, 7 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Perform live upgrades from RHLE 5 to RHEL 6/7 for different application areas such as Oracle, DB2, ETL, Border Protection and other application areas.
• Configured the suitable Load Balance methods, Profiles, Persistence, Monitors on the virtual servers.
• Expertise installing, configuring and testing OpenStack environment (Nova, Swift, Cinder, Neutron, Horizon, Glance and Keystone) on RedHat and Ubuntu distribution.
• Experience in Design, deploy, and operate OpenStack and SDN based IaaS, PaaS, and SaaS service platform network in multiple datacenters.
• Manage and troubleshooting Openstack components like Heat, Neutron, Cinder, Glance, Nova, Swift, Keystone and Ceilometer.
• Involved in testing of components Neutron (networking subcomponent) and Horizon (Openstack dashboard).
• Deploying the OpenStack components on multimode with High availability environment using Mirantis Fuel.
• Executing all Java/J2EE coding to meet business requirements and in accordance with industry best practices, client standards, and Citywide security policies.
• Managed a number of Java applicatio which inculde Websphere, Tomcat, Glassfish and other application server.
• Provided techical support to user related to Java application secuirty.
• Participated in full stack development using J2EE and web services.
• Developed J2EE based SDK for Android based applications
• Developed login module in the application using Java/J2EE and by integrating SSO
• Installed, configured, cloned VMs on VMware 5, Vsphere 4.0, configured ESX hosts, adding datastores to ESX hosts, creating vswitches, templates, migrating VMs across ESX hosts.
• Worked on VRA/VRO for orchestrating purpose and created blue prints for various OS versions such as RHEL, SLES and Windows2012.
• Shell scripting for sys. Admin purposes and performance monitoring (bash).
• Used bash shell scripting to do administrative automation tasks including, installing, configuring, managing files, users, and repositories, applications, debugging, and troubleshooting.
• Creating BASH shell scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation.
• Monitor server applications, use monitoring tools OEM, AppDynamics log files to troubleshoot and resolve problems
• Installing, configuring and administering AppDynamics enterprise essentials and AppDynamics forwarder on Redhat Linux and windows servers
• Experience on setup AppDynamics Forwarders for new application tiers introduced into existing applications
• Getting data and Managing AppDynamics apps
• Used AppDynamics for Application Log, Security Log and performance monitoring
• Troubleshoot AppDynamics indexers, forwarders and search heads Problems
• Extensive use of Bash shell for scripting and performance monitoring as well as back-up jobs.
• Bash and Python scripting for automation
• Creating Customized Bash Scripts to Automate Daily Tasks
• Strong Scripting skills in Bash, PowerShell, Perl, YAML, Json, Ruby and Python scripts to automate the deployments and for environmental changes.
• Using DB2 command line tools like db2top and db2advis to monitor and tune table indexes, long running SQL statements
• Web based experience with Apache, Tomcat in supporting live websites and changing live content on demand and restarting the web process. Migrating over websites from one server to another with backups and rsync. Other related webserver application experience working with Netscape Enterprise Server, Apache, IBM HTTPD, iPlanet, LDAP and Oracle OAS Client installs
• Worked on Apache tomcat and Weblogic Server configuration and implementation etc.
• Configured and Administered Apache, VSFTPD services, MYSQL and Tomcat.
• Expertise in working with MySQL databases, Apache Web server, Tomcat Application Servers
• Executed PaaS platform with Pivotal Cloud Foundry (PCF) on VCE VBlock IaaS platform as a pilot PaaS platform for Kaiser Permanente.
• Design/Plan/Architect Pivotal Big Data Suite roadmap including use of the HDP / HDF Hadoop technology stack
• Playing a pivotal part as a Remote System Administrator for InterTech media, (A Web-Hosting and Web design unit); successfully working on 67 Red Hat Linux Enterprise Servers.
• Exclusively worked with Pivotal Cloud Foundry (PCF) architecture and design, troubleshooting issues with platform components, and developing global/multi-regional deployment models and patterns for large scale developments or deployments on Cloud Foundry.
• Create, bind the user defined and built in services in Pivotal Cloud Foundry (PCF). Build, Test and deploy applications by using pivotal cloud foundry
• Extensive hands on experience in Pivotal Cloud Foundry and other PaaS platforms.
• Redesigning skewed data for DB2 DPF tables
• Designing a sandbox environment with Core production tables for application development in DB2
• Installed and configured the complete LAMP on the VMs and also have very good knowledge on Single Sign on Authentication with Siteminder and LDAP implementation on middle ware servers for multiple applications.
• Experience in using BladeLogic, SiteMinder, Introscope wily, Gomez, Event coordinator, Control-M GUI.
• Created Policies, Realms, Rules, and Responses on SiteMinder to protect the applications and authenticate the users to work under SSO environment.
• SQL Server installation, clustering configuration for Windows Server 2008.
• Worked extensively on Oracle, Teradata, and SQL Server with Micro strategy Suite.
• Experience in Install LAMP stack, backup and restore MySQL database.
• Build data warehousing solutions in SQL and MongoDB, Hadoop HBase, Cassandra for structured and non-structured financial data.
• Enforcing all db2 activities be logged on the database level
• Configuring IP Tables/Firewall rules for new servers to enable communication with application, Oracle 10g servers.
• Configuring servers to provide networking services, including HTTP/HTTPS, File Transfer Protocol (FTP), network file system (NFS) and server message block (SMB), Simple Mail Transfer Protocol (SMTP), secure shell (SSH) and Network Time Protocol (NTP).
• Created Self-Signed Certificate Authority to sign Certificate Requests for SSL and configured secure talk for ldaps, https, and smtps.
• Install, configure, maintain and run PUPPET, NIS, HTTP, DHCP, DNS, SMTP, SNMP, FTP, WEB, LDAP, servers.
• Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostatetc) and tuned I/O, memory, etc.
• Experience in creating alarms and notifications for AWS EC2 instances using Cloud Watch.
• Working on AWS Auto Scaling for providing high availability of applications and EC2 instances based on the load of applications by using Cloud Watch in AWS.
• Performed the automation using Puppet Configuration management and managing the infrastructure environment with Puppet.
• Configured DHCP, DNS, HTTP, Windows and Linux update servers for internal networks
• Troubleshot and maintained TCP/IP, Apache HTTP/S, and DNS applications
• Network Services included DNS, DHCP, WINS, Proxy Services (Threat Management Gateway/TMG) and IPAM requests.
• Install and configure DHCP, DNS (BIND, MS), web (Apache, IIS), mail (SMTP, IMAP, POP3), and file servers on SUSE and Linux servers.
• Worked on WebSphere and IBM HTTP Server installation, configuration, and troubleshooting.
• Upgrading the Webspere application on AIX and Linux servers.
• Installation, configuration and upgrade of Apache, Oracle & IBM Databases on the RHEL Systems manually and also through Puppet.
• Create and manage user accounts including SUDO access.
• Automate Deployment using configuration Management tool like puppet to provision amazon AWS Instances to enable continuous Deployments.
• Creating a local YUM repository for updating packages.

Sr. Linux/Unix/Aix/Vmware/Openstack Systems Engineer

Confidential, IL

Responsibilities:

• Administration of RHEL and AS 4, 5, 6 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Installation, configuration, administration of Solaris 9, 10 on SPARC based servers using Jumpstart.
• Creating, cloning Linux Virtual Machines, templates using VMware Vsphere 4.0 and migrating servers between ESX hosts.
• Configured and Administered Apache, VSFTPD services, MYSQL and Tomcat.
• Expertise in working with MySQL databases, Apache Web server, Tomcat Application Servers
• Responsible for 100's of Apache/Tomcat Servers in a Load-Balancing Configuration on RedHat Enterprise Linux 4
• Involved in testing of components Neutron (networking subcomponent) and Horizon (openstack dashboard). Tested and verified two major platform releases of Mirantis Openstack.
• Magnum OpenStack Container, Puppet (Cloud Configuration Management), Ansible, CFEngine.
• Worked on Open Daylight as SDN controller and Ceph as SDS in OpenStack.
• Manage partnership with various SDN solutions with SDN vendors.
• Configured Builds on Jenkins with ansible playbooks to perform OpenStack Deployment and Administrative Work.
• Experience of different J2EE Design Patterns like MVC, Data Access Object, Data Transfer Object / Value Object, Business Delegate and Singleton.
• Worked extensively on design and development of applications using Java, J2EE, Spring, Hibernate, jQuery.
• Experience in Struts (MVC architecture), spring framework, J2EE Design Patterns, Spring IOC, Java and Hibernate
• Anonymize the PII (personally identifiable information) data in Splunk
• Masked sensitive information such as SSN numbers, address when sowing results in Splunk
• Configured Splunk indexer cluster for data replication and search replication
• Configured Splunk forwarder to send unnecessary log events to null queue using props and transforms configuration to reduce costs
• Standardize and implement Splunk Universal Forwarder deployment, configuration and maintenance in Linux and Windows platforms
• Worked on log parsing, complex Splunk searches, Including external table lookups.
• Created Splunk Search Processing Language (SPL) queries, Reports, Alerts and Dashboards
• Set up Splunk Dashboard for continuous monitoring for production support
• Create role-based AD access for Splunk
• Developing scripts for build, deployment, maintenance and related tasks using Jenkins, Docker, Maven, Python and Bash.
• Responsible for continuous integration (CI) and continuous delivery (CD) process implementation-using Jenkins along with python and shell scripts to automate routine jobs.
• Created Python scripts to automate AWS services which include web servers, ELB, Cloudfront distribution, databases, security groups and application configuration.
• Involved in maintaining and editing Python scripts for application deployment automation.
• Wrote serverless applications (Lambda functions) in python, node.js to perform various transformations and analytics on large data sets in EMR clusters.
• Worked with Ansible Tower to manage Multiple Nodes and Manage Inventory for different Environments and developed Python Modules for Ansible Customizations.
• Setup Apache Tomcat as a high-availability application serving platform.
• Create, bind the user defined and built in services in Pivotal Cloud Foundry (PCF). Build, Test and deploy applications by using pivotal cloud foundry
• Extensive hands on experience in Pivotal Cloud Foundry and other PaaS platforms.
• Integrated Pivotal Cloud Foundry and SonarQube functionalities using REST API's.
• Implemented micro services using Spring Boot and Pivotal cloud foundry.
• Deployed Spring boot application using Pivotal Cloud Foundry
• Installing Red Hat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Installing and upgrading HPUX on HP PA-RISC and Itanium Servers 5 on HP DL 380 G3, 4 and 5 & Dell Power Edge servers.
• Monitored system operation efficiencies and services such as HTTP, FTP, MySQL etc. with Nagios.
• Expertise in Capacity Planning and Performance Tuning of Sun ONE DS and SiteMinder.
• Highly experienced in SAML federations using CA SiteMinder R12's Federation Security Services SAML 1.1, 1.2, 2.0 / Affiliate agents, Ping Federation Manager and Simple SAML PHP (used for testing purpose).
• Installed, configured and administered CA Siteminder from 6.X to R12 SP1 on Linux and windows 2003/2008
• Working with SQL developer, Teradata, MySQL Server to interact with different databases.
• Wrote Puppet manifests for deploying, configuring, Install shield and managing collected for metric collection and monitoring.
• Installation and configuration of Webserver Apache, MySQL 5.5 and PHP in a LAMP stack.
• Experience in administering SQL technologies like Oracle and Teradata.
• Built additional essential programs for database restores, roll-forwards, database create base scripts, db2 restart script for HADR and database instance upon server reboot, database log cleanup and a weekly process to capture growth.
• Providing solutions and support for 24/7 DB2 LUW databases
• Designing and architecting the DB2 database server environments for optimal performance ie SQL processing, transaction logging, batch jobs
• Upgrading DB2 Connect clients to V10.5
• Installation and configuration of Oracle HTTP server (OHS).
• Expertise in Installing and Managing LDAP, NIS, NIS+, NFS, DHCP, SAMBA, HTTP, FTP, SSH, DNS etc.
• RPM and YUM package installations, patch and other server management.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Worked and performed data-center operations including rack mounting, cabling.
• Worked on HP-UX servers in an MC Service Guard high availability cluster.
• Experience working with HP LVM, creating physical, volume groups, logical volumes both physical and SAN disks.
• Installation and deployment of a Red Hat Network Satellite Server 5.4.1.
• Installed and configured GNUPG to encrypt file and ftp to remote ftp server.
• Decommissioning of the old servers and keeping track or decommissioned and new servers using inventory list.
• Troubleshoot various systems problems such as application related issues, network related issues, hardware related issues etc.

Environment: Red Hat Linux 5/6, KVM, Acronis, VMWare, ESX, Solaris, Sun Enterprise Servers, SUN FIRE 6800/E6500/E4500, Sun Sparc1000, IBM RS/6000, Disk Suite, POP, Veritas Volume Manager, LDAP, DNS, NIS, NIS +, SNMP, Shell scripting, SENDMAIL, Apache, Puppet, WebSphere, Sun and Veritas Clusters.

Sr. Linux/Unix/Aix/Vmware/Openstack Systems Administrator

Confidential, RI

Responsibilities:

• Administration of RHEL 5.x, 6.x, 7 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Installation, configuration, administration of Solaris 9,10 on SPARC based servers using Jumpstart.
• Experience in Package Management using RedHat RPM/YUM and RedHat Satellite server and Kernel upgradation in RedHat Linux and CentOS servers.
• Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 4/5 and migrating servers between ESX hosts.
• Configured URL Rewrite policy for several application& web servers load balanced on internal NetScaler VPXs.
• Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Installed and maintained Splunk universal forwarder in different platforms
• Part of POC validation team for IT operation on Splunk Implementation involved in implementing real time data analytics through Splunk created Splunk saved searches, event types thus reducing the complexity of search to the business users
• Created advanced Dashboards, alerts, reports, advanced splunk searches and visualization in Splunk Enterprise.
• Experience with Splunk Searching and Reporting modules, Knowledge Objects, Administration, Add-On's, Dashboards, Clustering and Forwarder Management.
• Expertise in Installation, Configuration, Migration, Troubleshooting and Maintenance of Splunk, Apache Web Server on different UNIX, Linux.
• Developed Splunk Search Processing Language (SPL) queries, created Reports, Alerts and Dashboards and customized them; Implemented Dynamic drilldowns that provide greater flexibility to the end user.
• Worked on Amazon AWS, configuring, launching Linux and Windows server instances for Splunk deployment.
• Monitoring Splunk Dashboards, Splunk Alerts and configure Scheduled Alerts based on the internal customer requirement.
• Configured and monitored NFS environment and Worked on various protocols: HTTP, UDP, FTP, TCP/IP, DHCP, DNS, NFS, NIS etc
• Installing DB2 V10.5 AESE version with root privileges using DB2 install
• Configuring all previously created DB2 databases to use TSM server for database logging
• Enforcing all db2 activities be logged on the database level
• Implementing db2 audit facility to monitor both database and instance level usage
• Automating server configuration/management with Opscode Chef.
• Set up and maintain Content Manager OnDemand 7.1 on AIX/Linux servers.
• Established Chef Best practices approaches to systems deployment with tools like vagrant and test-kitchen andmanaging Chef Cookbook as a unit of software deployment and independently version controlled.
• Experienced in Writing Chef Recipes to automate our build/deployment process and do an overall process improvement to any manual processes.
• Administration, package installation, configuration of Oracle Enterprise Linux 5.4.
• Installing, configuring and troubleshooting Apache 2.2.x web server on Redhat Linux and Sun Java System Web Server 6.x, 7.
• Setup, Implementation, Configuration, documentation of Backup/Restore solutions for Disaster/Business recovery of clients using TSM backup on UNIX, SUSE & Red hat Linux platforms.
• RPM and YUM package installations, patch and other server management.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Configuring SUDO and granting root permission to users for performing certain activities.
• Worked and performed data-center operations including rack mounting, cabling.
• Configured servers and infrastructure running Redhat on JBOSS, using PUPPET to configure, install, manage and bring up JBOSS and applications.
• Installation, configuration and upgrade of Apache, JBOSS, Web sphere, MQSeries, Oracle & IBM Databases on the RHEL and OEL Linux Systems manually and also through Puppet.
• Installing, configuring Redhat servers via Cobbler, automating scripts, tasks using Cobbler.
• Creating profiles, manifests for new servers, and pushing them to servers using puppet.
• Experience in creating VMware templates and cloning VMs.
• Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager & Solaris Volume Manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
• Installed, configured, cloned VMs on VMware 5, Vsphere 4.0, configured ESX hosts, adding datastores to ESX hosts, creating vswitches, templates, migrating VMs across ESX hosts.
• Experience in configuring VMware Cluster with HA and DRS enabled.
• Worked on KVM, installing, configuring Linux VMs.
• Deployed and monitored scalable infrastructure on Amazon Web Services (AWS) & configuration management using Puppet.
• Build servers using AWS, Importing volumes, launching EC2, RDS, creating security groups, auto-scaling, load balancers (ELBs) in the defined virtual private connection.
• Implemented Migration from VMWARE to AWS using VMDK Import tools.
• Configuring multipath, adding SAN and creating physical volumes, volume groups, logical volumes.
• Gathering requirements from customers and business partners and design, implement and provide solutions in building the environment.
• Installed and administered CI tools like Jenkins, Perforce and Artifactory.

Linux/Unix/Aix/Vmware Systems Administrator

Confidential, TX

Responsibilities:

• Installation, configuration and Operating System upgrade on, Red Hat Linux 6.x, 5.x,
• Administrated server consolidation program through use of VMware ESX server and VMware Virtual Center
• Used and worked on Kick Start configuration to handle issuances and kernel configurations.
• SWAP box configuration, Implementation of disaster backup and recovery.
• Performance Management & Tuning of RHEL.
• Created, and Installation of VIO Server and configured several VIO client LPARS on power6 (p550 and 570) models.
• Installed and configured SAMBA server for windows and Linux connectivity.
• Implemented NIS and NFS for administrative and project requirements.
• Migrated Unix applications to Linux platform (ETL Informatica, Oracle, DB2, AD/LDAP etc.)
• Worked with several teams and guided 1st Level and 2nd Level teams to handle Incidents related to OS, Applications and Hardware.
• Discussed and documented Internal WIKI pages about the SLAs, OLAs and other ITIL best practices used to address the tickets in a timely manner.
• Excellent understanding of HP Service Manager and ability to create/modify/edit Interaction (SD-Service/Request), RFCs, Change Records, Incidents, Problem Record, CAB/eCAB, Test and Production Implementation Readiness.
• Helped the team in migration activities and actively involved in Pre-Assessment Phase, Assessment Phase, Build Phase, Validation Phase, UAT-1 (by Application Areas), Implementation Readiness (Change Records, Change Windows, Impact analysis), Migration, Cut-Over/Night-of-Implementation, UAT-2 (Final Validation by Application Areas) followed by Final Transition from Project to Service.
• Installed and Configured Web and investigate the configuration changes in the production environment.
• Responsible for multicasting of various components as a system administrator.
• Worked closely with DBA team to ensure optimal performance of databases, and maintain development applications and databases
• Tuning the kernel parameters based on the application/database requirement.
• Monitoring system resources, logs, disk usage, scheduling backups and restore
• Set up Quotas for the user accounts & limiting the disk space usage.
• Configuring SUDO and granting root permission to users for performing certain activities.
• Configure Crontab entries and update automation scripts.
• Knowledge in Adobe, Hyperion, development servers.
• Upgrading RHEL 5.0 to RHEL 5.9/6.4 using live upgrade and manual upgrade.
• Created BASH shell scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation.
• Work with security team to modifying application users' password policies, group policy, UID and GID assignment policies.
• Monitored the performance of the system using top, sar, ps, prstat, vmstat, netstat, iostat, and cpuinfo to check the CPU utilization, bottlenecks of I/O devices,, memory usage and network traffic.
• Troubleshoot network connectivity used ping, netstat, ifconfig, and trace route commands. Login to the remote system using sudo, putty, and telnet. Transfer files across the systems on the network used ftp, scp, and rsync commands.
• Experience managing various file systems using LVM and also configured filesystems through network using NFS, NAS, SAN methodologies and installed RAID devices.
• Linux technical support and prepared technical documentation for check in verification.
• Regular backing up of critical data and restoring backed up data. Worked in solving tickets issued on day to day activities and problems related to development and test servers.

Environment: Red Hat Linux 5/6, VMware ESX 5.x, Weblogic 12/11, Oracle 10g, VMWARE, NFS, SAN, NAS,ITIL,Unix/LinuxAdministrator