PROFESSIONAL SUMMARY:

• Experience of 8+yrs working on Red Hat Enterprise Linux, Fedora Linux, Debian Linux, SunSolaris, Ubuntu Linux, SUSE Linux.
• Worked as Linux/Unix system administrator on RedhatEL 5.x, 6.x, CentOS, SUSE, Solaris and VMware ESX environment.
• Working experience in implementing and administering VM's using VMware ESX 4.x, 5.xand VCenter.
• Troubleshoot of server virtualization products like KVM, XEN, VMware, and Virtual Box.
• Planning, Installation and configuration of RHEL 5.x/6.x along with installation and configuration of Kickstart.
• Experienced in Kickstart, Jumpstart, Cobbler Infrastructure setup and Installation Methods.
• Proficient in Linux utilities like KICKSTART, SSH, FTP, AUTOFS, Quota Management, wrappers, UserManagement, Process Management, Memory Management, and Text processing tools, Log Management, Package Management, Disk Management and Swap Partition/Files Management.
• Accomplished Disk Mirrors and RAID 0, 1 and 5 levels on several UNIX/LINUX servers.
• Performed kernel tuning based on the applications to be installed and the number of users.
• Excellent concepts of LVM and SVM creating new file systems, increasing and decreasing file systems.
• Mounting file systems, un - mounting file systems and troubleshooting Disk space issues and experienced in Deploying RHEL 5/6in an enterprise setting.
• Experienced on Redhat Satellite Server with custom repositories to provide a stable management solution for the Linux environment.
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoringFile System servers with NFSwith Auto mount clients.
• Troubleshooting skills with network protocols such as DNS, TCP/IP, SMTP, and SNMP and worked SAN and NAS technologies.
• Coordinated with SAN Team for storage allocation and Disk Dynamic Multi-pathing (DMP).
• Knowledge in load balancing and setting up load balancer and firewall rules in and enterprise environment.
• Experience working with version control tools like SVN and GIT .
• Experience working with build automation tools like Jenkins, Bamboo and Junit.
• Experience in using Tomcat and Apache web servers for deployments and for hostingtools.
• Experience in using Nexus and Artifactory Repository Managers for Maven builds.
• Highly experienced in installing, configuring, and implementing Virtualization EnvironmentusingVMware, Oracle virtual box, Windows Active Directory and LDAP.
• Experience in implementation and maintenance of Amazon Web Services (AWS).
• Installation of Database servers and user’s management such as Oracle, MYSQL, SQL Server, Diskspace and File system managementusingLogical Volume Manager, ZFS and Monitor Disk space andspace as needed in LVM.
• Worked on VERITAS Operations Manager (VOM).
• Experience with ticketing tools such as Remedy and Service Now.
• Experience in bug tracking tools like JIRA, HP Quality Center and IBM clear Quest.
• Experience in writing shell scripts to automate the administrative tasks and management using cronjobs.
• Good working experience in basic UNIX Scripts using bash.
• Installation of Operating Systems, Packages and Patches, System Security, backup recovery, and
• Performance tuning. Knowledge of system analysis, troubleshooting, and performance tuning system operating Systems.
• Experienced in implementing the workload Management (WLM) using cloning and clustering.
• Extensive experience working with AWS  provided Solutions like EC2, ELB, VPC , Route 53 , RDS , S3 , IAM , and Cloud Watch .
• Written KB article in confluence.
• knowledge of Openstack   services such as Nova, Glance, Cinder, and Neutron.
• Planning and setup of Disaster Recovery Servers.
• Worked with Vendors on system issues and bugs for its resolution.
• Provide and reviewed technical support for technical documentation of UNIX/LINUX servers.
• Willingness to work on flexible hours for production, backup and on-call support for 24/7 environments.
• Self-motivated, committed to work, detail oriented, and excellent problem solving skills with leadershipQualities.

TECHNICAL SKILLS:

Operating Systems:  RHEL 4.0/5.0/6.0, Solaris 9/10, Centos 4.0/5.0/6.0, VMware, ESX/ESsssXi 4.x & 5.x, OEL 5/6, Windows XP/2003/2007.

Networking:  LDAP, DNS, NIS, NFS, FTP, DHCP, SSH.

Backup/Monitoring Tools:  TOP,SAR,tcpdump,Wireshark,CronJobs, SendMail, Postfix, Nagios, sensu.

Version control Tools:  Svn,Git .

Automation Tools:  Chef and puppet.

Cluster: VERITAS Cluster Server, RHN satellite cluster .

 Web/Application Server:  Tomcat, Apache, WebSphere, WebLogic, JBoss, AWS.

Scripting Languages:  Kshell, bash, bourne and python.

Database:  Oracle 9i/10g, oracle 11g RAC, MySQL, SQL SERVER 2007 .

Hardware:  Dell-2950, HP Proliant, HP-460C Blade ,IBM F-series P-series RS6000, SUN M5000 & T2000 servers with SUN ZFS.

Virtualization:  VMware, XEN, KVM, Vsphere client.

PROFESSIONAL EXPERIENCE

Confidential, Burbank, CA

Responsibilities:

• Created servers in different environment in datacenter and automated that server by using chef.
• Written cookbooks to replicate the services to newly build servers.
• Written KB article on Chef in Confluence.
• Automating infrastructure in AWS  with Chef .
• Design EC2 instance architecture to meet high availability application architecture and security parameters.
• Focus on continuous integration and deployment, promoting Enterprise Solutions to target environments.
• Configuring and Networking of Virtual Private Cloud (VPC).
• Written Cloud formation templates and deployed AWS resources using it.
• Creating S3 buckets and also managing policies for S3 buckets and Utilized S3 bucket and Glacier for storage and backup on AWS.
• Creating Cloudwatch alerts for instances and using them in Auto scaling launch configuration.
• Bootstrapping instances using Chef and integrating with auto scaling.
• Manage the configurations of Multiple servers using Chef .
• Written multiple manifests and also customized facts for efficient management of the Chef clients.
• Written scripts in Python to automate log rotation of multiple logs from web servers.
• Implemented and maintained the monitoring and alerting of production and corporate servers/storage using AWS Cloudwatch.
• Used GIT version control to push the modules to the Git .
• Set up and managed Jenkins build farm of mixed Linux, Mac OS, and Windows slaves.
• Worked with a complex environment on Red Hat Linux and Windows Servers while ensuring that these systems adhere to organizational standards and policies.
• Worked on disk space issues in different servers .
• Monitored infrastructure on monitoring tools sensu.
• Strong in building Object Oriented applications using Java, writing Shell Scripts on UNIX.
• Generated Perl & UNIX scripts for build activities in QA,StagingandProduction environments.
• Used tracking tool JIRA and also triaged the issues and maintained bugs using JIRA tool.
• Manage the integration of new software projects and products into the build environment.
• Work with product development to resolve build-related issues in all projects.
• Involved in scrum ceremonies (stand-up, grooming, planning, demo/review and retrospective) with the teams to ensure successful project forecasting and realistic commitments .
• Involved in scrum meetings, product backlog and other scrum activities and artifacts in collaboration with the team .
• Migrating the data to respective DEV and QA Oracle database before doing code roll-out.
• Handled several projects go-live deployment/upgrade activities.
• Provided on-call support for production issues.
• Troubleshooting various production related outages.

Confidential, PA

LINUX System Administrator

Responsibilities:

• Experience administering, installing, configuring and maintenance of Linux.
• Patching of RHEL EMC Powerpath Upgrade for VMAX migration.
• Creation of VMs, cloning and migrations of the VMs on VMware vSphere .
• Experience installing, upgrading and configuring RedHatLinux usingKickstart Servers and Interactive Installation.
• Responsible for creating and managing user accounts, security, rights, disk space and process monitoring in Solaris, CentOS 5.x/6.x and Redhat Linux.
• ConfiguringDNS, NFS, FTP, remote access, and security management.
• Installing, upgrading and managing packages via RPM and YUM package management .
• InstalledFirmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/LinuxSystems.
• Installing, configuring and supportingApache on Linux production servers.
• ManagingPatches configuration, version control, service pack and reviews connectivity issues regardingSecurity problem.
• Managing systems routine backup, scheduling jobs and enabling cron jobs.
• Working with Database administrators to tune kernel for Oracle installations.
• Applied patches every quarter regularly to meet audit requirements using Oracle OpsCenter, Red Hat Satellite server, Up2Date, YUM, RPM tools.
• Integration tools configuration (Jenkins) on Redhatdistributions .
• Worked on all facets of HP-UX Systems Admin including Oracle DB tuning at OS level,Creating, Resizing and managing online JFS Filesystem for users upon user request using Veritas Volume manager (VVM) and LVM.
• Perform LAMP installation and configuration on Ubuntu, Red hat and Amazon Linux Instances.
• Installed and configuredDrupal and Wordpress on both Amazon Linux and Ubuntu EC2 instances.
• Extensively involved in Backup & Restores.
• Installation/Configuration of ESXi 4.x and 5.1 servers and applying security patches to the ESXi servers.
• Experienced in monitoring and debug performance issues on different OS Linux (RHEL & Centos),Systems log management, Data backup and restoration with UNIX native tools (tar/dd).
• Installed and maintain puppet-based configuration management system, configure and managing LVM on Linux using tools like lv extend, lv create, resize2fs etc.
• Scanning the newly assigned LUNs to the serves and assigning them to volumegroup and increasing the file system using Redhat volume manager.
• Worked on FTP servers for sending and receiving files between local and remote servers.
• Worked with MySQL, MS SQL Server, and their feature set and created database in Mysql as per the requirement.
• ITM agent installation, configuration and setup monitoring for application logsMonitored system performance using sar, prof, vmstat, iostat, netstat, Nagios.
• Working with the native multipathing for the high availability installation / configuration on Red Hat clusters.
• Experience in administration & configuration management of Puppet on Linux and puppet enterpriseManagement from the console.
• Modifying the manifest as per the requirement on Puppet.
• Providing 24*7 on-call support on rotation basis and Handling High priority incidents through bridge calls.

Confidential, NJ

LINUX System Administrator

Responsibilities:

• Worked on the installation, configuration, and maintenance and troubleshootingof RHEL Ubuntu, SUSE, AIX servers.
• Created and managed user/group and sudo access on Redhat Linux.
• Worked on migration from physical to virtual (P2V) environment.
• Work on installation of VMware ESX migration of VM's and data storage, patch management, snapshot and template and clone.
• Install packages using RPM and YUM.
• Created a mirror copy of bare metal into a virtual environment and switch production from bare metal to virtual.
• Setup static IP address for new server.
• Setup logrotate for application logs and system logs.
• Created and managed FTP web interface to manage and send files to customer FTP site using PHP.
• Installed and managed apache, MySQL, PHP, Perl modules on Redhat Linux servers. Managed user and database on the MySQL database.
• Used apache proxy to access Jenkins.
• Wrote scripts to automate daily tasks like creating LAMP stack VP's, VPS load testing, SSL installations, MySQL replication.
• Worked on solving issue related to LAMP stack web servers, both shared and VPS.
• Used Puppet for creating scripts, deployment for servers, and managing changes through Puppet masterServer on its clients.
• Assembled Puppet Master, Agent and Database servers on Red Hat Enterprise Linux Platforms.
• Installation and configuration of ­­­Webserver Apache , MySQL and PHP in a LAMP stack.
• Designing and creation of process workflow maps and documents to understand a work process.
• Installed and configured Samba to help printing and file sharing.
• Deployed Linux hardware Nodes to host several KVM templates.
• Patch and Package administration to keep the servers updated with the patches and that implementingPackages developed for deployment.
• Created Bash scripts to monitor processes and making sure process startup when operating system restart using chkconfig and RC startup levels.
• Performed recovery from failed backup.
• Testing for Incident, Problem, Change, and Service Catalog, Knowledge Management.
• Troubleshoot experience with API, Apache Tomcat issues.
• Troubleshooting OS and user problems on various Servers and on different platforms.
• Configuring, administering and troubleshooting of NFS.

Confidential, TX

LINUX Administrator

Responsibilities:

• Responsible for installing and configuring Red Hat Linux using Kick Start server.
• Installation and configuration ESX hosts. Making new virtual machines, with Linux Redhat server, making templates, cloning VMs using VMware Virtual Client .
• Created new File systems and Logical Volumes, performed file system management and troubleshooting in Redhat.
• Installing Redhat Linux using Kickstart and applying security policies for hardening the server based on the company's policies.
• Configuration of LVM (Logical Volume Manager) to manage volume group, logical and physical partitions and importing new physical volumes.
• Involved in SAN migrations at host level using LVM mirroring and SVM Mirroring.
• Installing and updating packages using RPM.
• Managed users, disks, group’s administration, File Sharing Permissions, backup and restore operations, and networking service.
• Configuration and installation of DHCP, DNS, web (Apache), mail (SMTP, IMAP, POP3) and file servers on Linux servers.
• Setup, configured and maintained NFS, NIS, and TCP/IP network, setting up SSH and SCP features between hosts.
• Lockdown the local accounts to secure the environment using NIS.
• Setup user and group login ID's, password and network configuration.
• Implemented early stages of a continuous integration process based on Jenkins.
• Worked with DBAs on installation of Oracle database.
• Installed and configured Oracle RAC 11g for database purpose.
• Worked and performed data-center operations including rack mounting, cabling.
• Automate configuration through Puppet.
• Responsible for installing, integrating, tuning and troubleshooting Apache, Tomcat, Websphere and Weblogicapplication server.
• Collaborate on monitoring and troubleshooting Servers using various third party tools like Nagios.
• Maintenance, performance, tuning and testing of servers for proper functioning.
• Network troubleshooting using 'netstat', 'ifconfig' and Worked closely with vendors on Hardware Problems, software fixes.
• Managing routine backup, scheduling jobs, enabling system logging and network logging.
• Troubleshooting tickets using BMC remedy.
• Developed bash shell scripts to automate routine activities.

Confidential

LINUX System Administrator

Responsibilities:

• Responsible for installing and configuration of RHEL , CentOS , and SuSe.
• Implemented day-to-day tasks in RHEL including user access, setting up sudo rules upgrading.
• Installed and configured RAID 0, RAID 1 and RAID 5.
• kernel, firmware, and rpms as well as adding SAN disks.
• Data Centers support contains 700 + servers.
• Configure IBM RS/6000 for production, staging and test environments.
• Worked with installation and configuration of VMware ESX servers.
• Installation and Configuration of SSH, TELNET, FTP, DHCP, DNS.
• Installation and configuration of NFS, NIS, TCP/IP and ZFS.
• Monitoring and troubleshooting issues of operating systems.
• Trouble shoot network issues using 'ndd', 'traceroute', 'netstat', 'ifconfig' and 'snoop' etc.
• Local and Remote administering of servers, routers and networks using Telnet and SSH.
• Installation and configuration of Web Sphere, Apache, Web Logic, LDAP, and mail servers.
• Use of packages like SAMBA in integrating UNIX file systems.
• Setting up printers on UNIX / NT machines to work seamlessly across platforms.
• Interacting with various teams such as Database, Net-backup and SAN teams.
• Worked with Veritas Netbackup for enterprise wide backup and recovery.
• Installation and configuration of Volume Manager, Cluster Servers.
• Document process and procedures for system and database usage.
• Creation and management of user accounts and groups according to the security needs and adding thePackages and patches when needed.
• Helped Development team to provide the information and troubleshooting.
• Network & Firewall troubleshooting.
• Documenting processes and troubleshooting scenarios on runbooks.
• Provided support for large number Production, Development and Test systems.
• Providing 24*7 on-call support on rotation basis and Handling High priority incidents through bridge calls.