SUMMARY

• Over 7+ years of IT industry experience as a System Engineer on various flavors of Linux and Unix.
• Experienced in production support of various applications onRed Hat Enterprise Linux, CentOS, SUSE, Ubuntu, AIXandWindows environment.
• Extensively worked on Installation, Up gradation, Patching, Configuration, performance tuningonUNIXand systemsoftware & hardware.
• Used configuration management toolsChef,Puppet, and CF Engine to automate the workload.
• Supported AWS Cloud environment wif multiple AWS instances and configured Elastic IP & Elastic Storage and also experience working on implemented security groups.
• Strong technical background in Storage, Disk Management, LVM, andRAIDTechnologies using various tools likeVeritas volume manager,Solarisvolume manager.
• Expert on configuring and managing Puppet master server and also experience in updating and creating modules and pushing them to puppet clients.
• Strong experience utilizing Jenkins for enterprise scale infrastructure configuration and application deployments.
• Implemented multi - tier application provisioning in Open Stack cloud, integrating it wif Puppet.
• Analyzed and resolved conflicts related to merging of source code for GIT.
• Experience working on various web and application servers, which include but not limited to Installation and configuration of Apache/Tomcat/Java/MySQL.
• Working knowledge of Amazon EC2 setting up instances, virtual private cloud (VPCs), and security groups.
• Deploy and monitor scalable infrastructure on Amazon web services (AWS) & configuration management using Chef and Ansible.
• ExtensivelyusedVeritasCluster Server 4.x & 5.x.
• Experience in using Nexus andArtifactory Repository Managers for Maven builds.
• Installed, configured and maintained Samba,Web Sphere & Web Logic Application Servers, Nagios and Chef.
• Managed the code migration from TFS, CVS and Star team to Subversion repository.
• Involved in administration and configuration of DNS, NIS, NIS+, LAMP and LDAPonLinux server environment.
• Experience in Installation and configuration of Web hosting administrations likeHTTP, FTP, SSH, & RSH.
• Installed VMware ESX server and createdVMs and installed different guest OS.
• Responsible for creating and maintaininguser accounts, profiles,security, rights, disk spaceandprocess monitoring.
• Worked on Veritas Volume manager (VxVM), Mirroring, and striping,Parity,New File Systems,MountingandUnmountingFile Systems.
• Experience in Package management using RPM, YUM and UP2DATE in Red Hat Linux.
• Worked on Firewall implementation & Load balancer between various Windows servers.
• Strong use of Shell scripting languages likePython,Ruby, Perl, Bash and configuration
• Experienced on documentation and working on 24X7 Support.

TECHNICAL SKILLS

Operating Systems: Linux (Redhat, CENTOS ), Solaris 10/9/8, HP-UX 11.0, 11.11, IBM AIX (4.3/5.x), HPUX11i V1, V2 & V3, VMware ESX, SLES 8,9,10 & 11, Windows NT /2000/2003, MAC OS X 8/9.x/10.x.

Hardware: M5000, M8000, T5220, T5240, Work Group Servers E450, E420, E250, E220, Netra 1405, Netra X1, Ultra 80, 60, 30, 10, 5, 2, 1, Intel Servers

Networking: TCP/IP, NIS, NFS, FTP, DNS, DHCP, Samba, Apache, SMTP, SSH, IP-Tables

WEB Technologies: Tomcat, APACHE 2.x, 3.x, Web Logic (8/9/10) & Web Sphere 4.0/5.0

Programming, Scripting Language & Databases: RDBMS, MySQL, Oracle, Sybase, MSSQL, C, UNIX Shell Scripting, Perl Scripting, Python, Ruby, HTML, VB

Backup Management: Veritas Net backup 4.x/5.x/6.x, Ufsdump, Ufsrestore, TAR, cpio, dd, Tivoli, Symantec Netbackup 7.x

Third Party Software: VERITAS Volume Manager, VERITAS Cluster Service (VCS), HP Service Guard, Sun Cluster, Confidential Storage, RAID Technologies, SSL, Splunk

Protocols: TCP/IP, UDP RIP, OSPF, EIGRP, IGRP, SNMP, SMTP, TELNET

DevOps Tools: Puppet, Chef, Vagrant, Docker, SVN, GIT

PROFESSIONAL EXPERIENCE

Confidential, Lafayette, CO

DevOps Engineer

Responsibilities:

• Worked on administration of RHEL 5.x/6.x, Ubuntu, CentOS, AIX and Solaris servers that included installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual servers.
• Proficient in configuring JumpStart and Kickstart servers to initiate installation of Redhat Linux and Solaris on several machines at once.
• Installed and configured VMware ESX server instances for virtual server setup and deployment.
• Migrated applications from data center to AWS cloud.
• Gatheird client requirement and created platform in AWS, based on the requirement.
• Built webservers and migrated application in AWS for migration setup and making sure they functioning properly.
• Set up Infrastructure and Tools required for DevOps environment.
• Worked on installation, configuration and management of puppet master and puppet agent.
• Wrote custom Modules and Manifests, downloaded pre-written modules from puppet-forge as per the requirement.
• Deployed Puppet, Puppet Dashboard and PuppetDB for configuration management to existing infrastructure.
• Worked wif Jenkins, Github, Puppet and all internal build systems for the coredevelopment team on an enterprise-level Java-based cloud orchestration/automation tool.
• Automated application wifVagrant, and Ansiblefor development, test and deployment.
• Responsible for design and maintenance of the Subversion/GIT, Stash Repositories, views, and the access control strategies.
• Assisted developers to establish and apply appropriate branching, labeling/naming conventions using GIT source control.
• Installed packages and patches using Red Hat satellite servers.
• Assisted in installing a new version of RHEL Satellite server and implementing the frequent RHEL patching strategy.
• Worked on configuration and Administration of application server JBoss and Web ServerApache and Tomcat.
• Deployed J2EE applications to Application servers in an agile continuous integration environment and also automated the whole process. Build scripts using ANT and MAVEN build tools in Jenkins, Sonar to move from one environment to other environments
• Installed packages, patches and SSL certificates on all web servers.
• Experienced in Installing and configuring performance-monitoring tools Nagios, Splunk.
• Worked wif various scripting languages like Ruby, Perl, Python, Bash.
• Administration of GIT and SVN repositories.
• Strong Knowledge in implementation of enterprise storage solutions SAN, NAS, LVM.
• Performed configuration and administration of SENDMAIL server and testing the mail server.
• Troubleshooting performances on Linux network, security related issues, capturing packets using tools such as IP tables, firewall, TCP wrappers, NMAP, and familiar wif Satellite Server.
• Worked wif backup team to backup Linux servers using NetBackup.
• Technical support On-call 24/7 in debugging and fixing issues related OS.

Environment: RHEL 5.x/6.x servers (DELL Power Edge 2850, 2950, R805, R910, Puppet, AWS, Jenkins, Ant, Maven, SVN, GIT, Ubuntu 12.04, Kickstart, Oracle ASM, JBoss, Apache, Tomcat, SAN storage, HP DL360, 380, DL385, Cisco Blade servers, VMware ESX, GIT repository, Nagios, Splunk.

Confidential, Richardson, TX

System Engineer/DevOps Consultant

Responsibilities:

• SupportedRed Hat Linux, Cent OS and Solaris servers in production / stage / development environment.
• Worked on configuration and administration of Servers that includes Installation, upgrade & loading patches & packages Installation and configuration of Veritas Cluster servers.
• Performed automation on the infrastructure using system configuration tools like Puppet and Chef.
• Used Dockers to create several containers and setup images on those containers. Performed Continuous Integration using Dockers
• Deployed Dockers Engines in Virtualized Platforms for containerization of multiple apps.
• Wrote puppet modules to configure Apache, JBoss, Tomcat, and Web Logic for different web application to improve performance.
• Used Puppet to manage Web Applications, Configuration Files, Data Base, Commands, Users Mount Points and Packages.
• Involved in creating modules, manifests in Puppet using Python and automated various administrative tasks by creating modules and manifests on multiple servers using Puppet.
• Extensively worked on Installation, configuration and administration of Jenkins Continuous Integration tool on Linux machines along wif adding/updating plugins such as SVN, GIT, Maven, ANT, and Puppet.
• Created local, virtual repositories in Artifactory and integrated wif Jenkins.
• Working closely wif Web Administrators to setup anAnsibledeployment for SharePoint applications usingAnthillandSVNTools.
• Worked on VERITAS Volume Manager 3.x/4.x and Solstice Disk suite (SVM) RAID configuration, troubleshooting, maintenance, disk management & space allocation etc.
• Performed Installation, Configuration, troubleshooting & maintenance ofRed Hat cluster.
• Managed problem tickets and service request queues, responding to monitoring alerts, execution of change controls, routine & preventative maintenance, performance tuning, patching and maintenance of RHEL 5.x, 6.x.
• Worked on REDHAT Enterprise Linux Installation on various servers using Kick-start and configuration & support for various applications run on Linux environment.
• Worked on installation, configuration and trouble-Shooting of web servers like IBM HTTP Web Server, Apache Web Server, Websphere Application Servers, and Samba Server on Linux (Redhat & CentOS)
• Created and Modified Automation scripts for weekly and monthly backups in perl and shell
• Worked on UNIX Server monitoring for maximum availability using BMC patrol and other monitoring tools and taking steps to keep servers up and running under 24x7 environments for maximum uptime.
• 24x7 support rotating shift for production environment.

Environment: Red hat 5.x, 6.x, Solaris 8/9 wif NFS and NIS, Puppet, Chef, Ant, Ruby, SVN, GIT, Maven, Artifactory, Docker, Jenkins, VMware, SolsticeDisk Suites, Volume Manager (VxVm) 4.1,Veritas Cluster server (VCS), VMware.

Confidential, Phoenix, AZ

System Admin/Engineer

RESPONSIBILITIES:

• Responsible for Building and configuring Red Hat Linux Servers 5.x/6.x using Kick Start server as required for the project.
• Administration of RHEL 4, 5, Suse, CentOS and Solaris9, 10 that includes installation, testing, tuning, upgrading and loading patches, troubleshooting server issues.
• Deployed Red Hat Satellite server wif custom repositories to provide a stable management solution for the Linux environment.
• Worked on installation, integration, tuning and troubleshooting of Apache, Tomcat, WebSphere and Weblogic application server.
• Worked on installation and Configuration of configuration management tool Puppet.
• Ansiblesetup, managing hosts file, Using Yaml linter, authoring various playbooks and custom modules wifAnsible
• Worked on creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 3.5 and migrating servers across ESX hosts.
• Used puppet to configure servers manages profiles, push changes, writing manifests across all servers in UNIX and Linux environment.
• Installing and configuring Redhat Linuxusing kickstartand applying security policies for hardening the server based on the company's policies.
• Planned, scheduled and Implemented OS patches on both Solaris & Linux boxes as a part of proactive maintenance and Secure Shell (SSH) implementation.
• Managed systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Troubleshooting tickets, which includes storage, network, and system related issues and logging
• Worked on VERITAS volume manager to create disk groups, volumes, importing disk groups.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permission issues, user and group quota
• Worked on Veritas NetBackup 6.5, which includes installation, creating policies, configuration and upgrading servers.
• Installing, configuring, administering Veritas Cluster Server 5.0, creating service groups, adding resources, enabling attributes, testing fail-over.
• Adding patches to keep the servers updated against bugs present in the operating system as well as other applications like VERITAS Storage Foundation, Web Sphere and Oracle.

ENVIRONMENT: Red-Hat Linux Enterprise servers 4/5/6, (HP Proliant DL, ML Series, Dell Poweredge Servers R610, R710), X86/X64 platforms, Solaris 8/9/10/11, ASR, VMware, SAN( Confidential, Hitachi), NAS (Netapp), Blade Logic, Puppet, Veritas Volume Manager4.1, Sun Enterprise Server M4000, M5000

Confidential

System Administrator

Responsibilities:

• Installation of UNIX /Linux, VERITAS and building various environments.
• Worked on troubleshooting issues related to NFS, NIS, LVM, Grub corruption, configuration & maintenance of RAID (level 0,1,5), troubleshooting VERITAS Volume Management and cluster server environment.
• Performed production support & Systems engineering duties related to Redhat system administration like DNS, DHCP, NFS, NIS, LDAP, user account maintenance, backup & recovery, Auto-mounting, License Management, Printer configuration.
• Interaction wif the clients for gathering the requirements, so as to design and plan the software and hardware infrastructure also handled installation and configuration of SQUID Web proxy.
• Disaster Recovery and Change Management: Designed and implemented disaster recovery solutions such as clusters using VERITAS Cluster server for storage replication and to allow seamless failover of IP on the DR site.
• Managed e-mail systems, including POP, SMTP, text, and web-based clients, as well as virus scanning/filtering software; Installed, configured and managed DNS service for several domains; Performed OS installations and configuration for testing and implementing server environment based on virtualization.
• Worked wif different Linux Utilities like KICKSTART, SSH, FTP, AUTOFS, Quota Management, wrappers, User Management, Process Management, Memory Management, and Text processing tools, Log Management, Package Management, Disk Management and Swap Partition/Files Management.
• Handled installation and configuration of Sendmail and Postfix.
• Preparation of operational testing scripts for Log check, Backup and recovery and Failover. Creation and implementation of shell scripts to take care of DB backup, monitoring alert log and log rotation reports.
• Involved in weekly meeting and discussion to change management, datacenter and infrastructure issues.
• To provide ongoing support in systems management and administration of LINUX/UNIX in global-scale environment.
• Provided 24x7 supports for various divisions wifin the Company and resolve all production issues in a time sensitive environment.

Environment: s: Redhat Linux 3,4,5, Switches, VMware ESX 5.1, oracle 11, VERITAS Cluster Server 5, and VERITAS Operations Manager.