SUMMARY

• Experienced IT professional with Seven years of experience in System Administration with specialization in Installation, Configuration and Administration of LINUX/UNIX, with expertise in Red Hat Linux 4, 5, 6.x, Solaris 9, 10, 11, SUSE, AIX and Windows.
• 3 plus years of hands on experience as a DevOps Engineer, expertise in AWS, Azure, Open stack, Chef, Puppet, Ansible, Jenkins, Apache, Tomcat and JBoss.
• Configured and used Kickstart for RHEL 4.x, 5.x, 6.x. and Jumpstart for Solaris 9/10 servers to install OS. Configured and maintained VMware.
• Expert in Installation configured Puppet operation of patches and packages using Red Hat Satellite Server.
• Experienced with the installation, configuration and volume/File system management using Veritas Volume Manager (VxVM), Logical Volume Manager (LVM) and Solaris Volume Manager (SVM).Experience in installing, configuring and implementing RAID 0, RAID 1 and RAID 5 Technologies.
• Expertise in user administration, backup, startup, shutdown scripts, crontabs, and automation using Perl, Python, Ruby, shell scripting (bash, ksh) for RHEL, Solaris, and AIX systems.
• Strong experience in Veritas Cluster Server 4.x, 5.x in supporting high availability mission critical servers.
• Hands on experience in creating virtualizing using VMware ESX, ESXi 4.x, 5.x, Templates and vCenter.
• Involved in recovering OS from VM snapshots and working on Maintenance mode through VM console.
• Experience in configuration of NIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, postfix, FTP, SFTP, Telnet, TCP/IP security management and Security trouble shooting skills.
• Highly knowledgeable in Cisco networks as well as their installation and maintenance.
• Experience in installation and configuration of Web hosting administration HTTP, FTP and SSH.
• Experience on Web servers such as Nginx 1.x and Apache Server 1.x, 2.x, Tomcat 6.x, and 7.x container and integrating them with WebLogic 10.x, 11.x servers
• Experience in build technologies like Hudson, Jenkins, Maven, Integration and automation of source control applications like GIT, SVN and Artifactory.
• Experience in using Nexus and Artifactory managers for Maven Repository builds.
• Experience in automation using Python, Ruby, Shell, Ksh, csh and Perl scripting and experience in using automation tools like Puppet and Chef.
• Strong proficiency in supporting Production Cloud environments (AWS and VMware) and managing cloud software deployments, with a continuous integration using GitLab, GitHub, SVN, Jenkins and Bamboo
• Experience in AWSdeploying instances like Red Hat, Ubuntu, CentOS, and Windows.
• Expertise in managing Amazon instances by taking AMIs and performing administration and monitoring of Amazon instances using Amazon Cloud Watch.
• Experience setting up instances behind Elastic Load Balancer in AWSfor high availability.
• Experience in DevOps tool Chef in provisioning AWS machines. Experience in creating, maintaining Chef Recipes and cookbooks for automated initialization of servers, installation and deployments of services.
• Experience with configuration management tools like Puppet, Chef, Ansible integrated CI/CD and version control systems.
• Excellent understanding of Network topologies such as LAN, WAN, VPN, and Firewalls.
• Expert - level understanding of the SDLC Processes, Project roles and CM plans.
• Excellent analytical, problem solving communication and interpersonal skills.
• Quick learning capability, delivering solutions as an individual and a good team player.

TECHNICAL SKILLS

Operating Systems: UNIX, Linux (RHEL 4,5,6.x), CentOS 5/6 Sun Solaris 10.9/8/7, Ubuntu, Windows

Programming Languages: C, C++, XML, HTML, Java, Bash Shell scripting, Perl, Python, SQL, VBScript

Scripting: Ant/Nant, Maven, PowerShell, Perl, VB, and Shell.

Disk Management: Logical Volume manager, Veritas Volume Manager, Solaris Volume Manager

File Systems: Logical Volume manager, Veritas Volume Manager

Virtualization: VMware VSphere, vCenter Server, Xen Server

Web/Application Servers: AWS, WebSphere, WebLogic, Apache Tomcat, JBoss

Tools: Puppet, Chef, CVS, Subversion, VSS, GIT, Rational, Nagios, IpTables, Red hat clusters, Clear Case(Unix/Win) 7.0/7.1, ANT, JIRA, SVN, Jenkins/Hudson, GitHub, GitLab Cruise Control, Archiva, Nexus

Networking: TCP/IP, DNS, NFS, NIS, SSH, DHCP, Cisco Routers / Switches and LAN

Databases: Oracle 11g/10g/9/8, MYSQL, Mongo, SQL server.

PROFESSIONAL EXPERIENCE

Confidential - Houston, TX

System admin/ DevOps

Responsibilities:

• Involved in DevOps migration/automation process for build and deploy systems.
• Used SVN for branching, tagging and merging, also maintained SVN repositories for DevOps environment: automation code and configuration.
• Monitored and administered Subversion (SVN), Jenkins, GIT and Sonatype Nexus on RHEL Linux environment and Amazon EC2 cloud environment.
• Experienced on AWS cloud resources like IAM, EC2, S3, EBS, VPC, ELB, Cloud Watch, SES, and SNS.
• Developed the automated provisioning of AWS cloud environments using Jenkins and Chef.
• Set up the rules to each security groups that associated to instances.
• Created new accounts using IAM, roles and groups and engaged in enabling lambda functions for dynamic creation of Roles.
• Created monitors, alarms and notifications for EC2 hosts using Cloud Watch.
• Configured and automated the Jenkins Build jobs for Continuous Integration.
• Installed and configured chef server, chef-solo along with writing Chef Recipes.
• Used Chef-apply for a single recipe for quick testing purpose and Chef-client to apply one or more cookbooks.
• Installed and configured Nagios network monitoring tools (3.2/3.3/3.4) using Chef.
• Installed and Configured Nexus to manage the artifacts in different Repositories.
• Created tags and put release baseline on the branch after successful application development.
• Support the code builds by integrating with continuous integration tool (Jenkins)
• Wrote Maven and shell scripts and Installed Jenkins for end-to-end build and deployment automation.
• Modeled and automated the end to end Continuous Integration/Deployment/Delivery pipeline which included building a Continuous Integration server utilizing tools like Jenkins, Nexus, Maven, Jira, Subversion, GIT, and Ant
• Integrated delivery (CI and CD process) Using Jenkins, Nexus, Yum and Chef.
• Experienced creating scripts for system administration and AWS using languages such as BASH, Perl and Python.
• Configuration Management using Subversion (SVN) and maintaining admin related files.
• Configured and maintained codebase to support the build and deployment of code on servers.
• Automating the regular tasks in Subversion and streamlining the process of access to SVN.
• Migrated Projects from SVN to GIT.
• Deployed the Java Applications into Web Application Servers like Apache Tomcat.
• Used ANT and Mavens a Build Tools on Java Projects for the Development of Build Artifacts on the Source Code.
• Used Remote system administration tools like SSH, Telnet, MobaXterm and Rlogin.

Environment: Amazon AWS, Chef, Jenkins, Apache, Apache Tomcat, Mavens, ANT, MySQL, LDAP, Java, MySQL, SVN, GIT, CentOS V5.x 6.x, Bash, Perl, Python, VMware, MobaXterm, Google Docs.

Confidential - Houston, TX

Sr. DevOps Engineer

Responsibilities:

• Installed, configured and administered UNIX servers, which include selection of relevant tools and hardware to support the installation, upgrade, and update of RHEL 6.4, 6.5 and Solaris 10 and 11.2 operating systems.
• Created Solaris Jumpstart and Linux Kickstart servers and processes to automate and standardize the installation process, reducing installation time and post installation errors.
• Participated in weekly release meetings with Technology stakeholders to identify and mitigate potential risks associated with the releases.
• Designed and deployed AWS Solutions using EC2, S3, EBS, Elastic Load balancer (ELB), auto-scaling groups.
• Managed infrastructure provisioning (S3, ELB, EC2, RDS, Route 53, IAM, and security groups - CIDR's, VCP, and NAT), deployment, and EC2 Installs with CentOS, Ubuntu and RHEL 6.
• Automated deployment using Puppet to provision Amazon AWS Instances to enable continuous Deployments.
• Configured and monitored distributed multiple platform servers using Puppet.
• Used Puppet server and wrote puppet manifests to automate configurations of broad services.
• Managed virtual instances and disks using Puppet.
• Deployed Puppet, Puppet Dashboard for configuration management to existing infrastructures.
• Implemented GitHub for version control of Puppet modules and process documentation.
• Implemented & maintained the branching utilizing Subversion /GIT.
• Install EMC Power Path and create Storage RAID groups, LUN's and assigning them to the servers.
• Used Jenkins as a continuous integration tool for automation of daily process.
• Managed build results in Jenkins and deployed using workflows in Jenkins.
• Configured the user's accounts for Continuous Integration - Jenkins, Nexus and Sonar.
• Used Docker containers with Jenkins to make deployment easier.
• Deployed front-end applications on Nginx and Apache webservers and integrated with JBoss.
• Administered Linux servers for several functions including managing Apache/Tomcat server,
• Created Virtual Machine Profiles in VCenter Server, allocating storage and installing Red hat Linux using Kickstart.
• Managed released Communication and Co-ordination Process.

Environment: Linux, Solaris, RHEL, Amazon Aws, Puppet, GitHub, Subversion, Jenkins, Docker, Nexus, Apache, Nginx, Sonar, LUN’s, GitHub, Perl, Python, subversion, Bash, Shell, JBoss, VMware.

Confidential - Houston, TX

System Administrator

Responsibilities:

• Worked on installation, configuration, upgrading loading patches, tuning and troubleshooting of RHEL 5.x/6 .x, Centos and Solaris 9.x /10 OS.
• Installed Solaris 9, 10 on Sun Fire and Enterprise server using Jumpstart and RHEL servers using Kickstart custom configuration like installing packages, configuring services.
• Installed diverse packages using YUM and Red hat Package Manager (RPM) on various servers.
• Managed and scheduled systems routine backup jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Worked on partitioning disks with Veritas VM and Solaris Disk Suite and maintained cluster settings using Veritas VCS.
• Used Veritas Volume Manager for creating disk groups, volume groups and RAIDs.
• Installed and configured the VMware ESX for the VM cloud and vSphere 4.x, 5.x.
• Worked with DBA team for database performance issues, network related issues on Linux Servers.
• Performed vMotion using the VCenter 5.0 on the ESX machines for migrating the VMs online.
• Wrote Python, Shell, ksh, and bash scripting to automate the tasks.
• Worked on SAN, NAS and DAS storages with HBA card configuration and different level of RAID configuration.
• Worked in installation and administration of DNS, NIS, NFS, NTP, Samba, SNMP & DHCP servers.
• Tested scenarios for testing functionality of the OS as NFS, NIS and DNS.
• Installed, configured and managed PHP, MySQL and SQL server and consoles while integrating with Linux Server Windows environment (LAMP/WAMP) for test and development environment.
• Worked on configuring & troubleshooting of SuSE Linux 10.x/11.x.
• Administered and Supported the Continuous Integration Server Infrastructure. Completing software builds and elevations, creating directories and security groups, and recreating prior versions.
• Used various Bug Tracking tools like JIRA, Bugzilla and integrated with JUnit, HP, QC and other software testing procedures.
• Maintained and Troubleshooting of FTP Server of the client Managing Red Hat Cluster, HPC environment etc.
• Acted as an Integrator for performing merge, rebase and baseline operations Metadata.

Environment: Red Hat Linux (RHEL 4/5), SuSE Linux 10.x/11.x, Logical Volume Manager, Global File System, Red Hat Cluster, Python, Perl, Bash, Ksh, Perl, VMware, vSphere Servers, MySQL, JUnit, DNS, NIS, NFS, Apache, Tomcat, LVL, YUM, UNIX, JIRA, Bugzilla, LAMP/WAMP.

Confidential - Houston, TX

System Administrator

Responsibilities:

• Installed, configured and administered UNIX servers, which include selection of relevant tools and hardware to support the installation, upgrade, and update of Red Hat 4.x, 5.x, Solaris 9, 10, operating systems.
• Created Solaris Jumpstart and Linux Kickstart servers and processes to automate and standardize the installation process, reducing installation time and post installation errors.
• Build customized RPMs on Linux and packages on Solaris for deployment on various servers through SDLC.
• Configured and maintained Zones, ZFS file system, Zone administrative commands i.e.; Zpool, zfs, Zonesfg, and Zoneadm on Sun Solaris servers.
• Extensively worked on hard disk mirroring and stripe with parity using RAID controllers.
• Converted Linux systems from local password authentication to LDAP and NFS homes significantly increasing administrative efficiency.
• Involved in administration and setup of various High Availability clusters on Linux and Solaris servers using VCS 5.x and Red Hat Cluster Suite.
• Installation and configuration of networks, router configuration and wireless access point/router with security, TCP/IP, VPN, Content Filtering, Access Control Lists on router/switches, VLANS (port mapping, naming etc.), and routing IP address in both LAN/WAN and wireless networks.
• Designed bash, ksh, and Perl scripts to automate application and system management activities with the functionality of application startup and shutdown, monitored systems and applications health, and web site management.
• Created shell scripts and cron jobs that monitored and reported security issues.
• Configured DNS, maintained and distributed a central directory using NIS, maintained file system and printer sharing using NFS.
• Upgraded system software and hardware components as requires; coordinated backups.
• Administered various system level technologies including Samba, LDAP, Package Management (yum/up2date), High Availably Networking (NIC Bonding), and Log Management (rsyslog, syslogd, syslog-ng)
• Wrote shell scripts to backup log files and extract files according to customer's needs.

Environment: Red Hat Enterprise Linux 4, 5, Solaris 9, 10, Logical Volume Manager, Red Hat Cluster Server, MySQL, DNS, NIS, NFS, Apache, Tomcat.

Confidential - Houston, TX

System Administrator

Responsibilities:

• Installed, upgraded, mirrored and configured of RHEL 4.x/5.x, Solaris 9, 10, SuSe 9.x, 10.x servers.
• Configured kickstart server and applied updated patches to the servers using Red Hat Satellite server.
• Planned and applied system upgrades including hardware, operating system and periodical patch upgrades.
• Performed capacity analysis, monitored and controlled disk space usage on systems.
• Automated administrative tasks using scripting tools like Perl, Bash and Ksh.
• Worked on virtualizing environments using VMware vSphere ESXi 3, 4, 5 and vCenter operations Management.
• Installed, configured, cloned VMs configured ESX hosts, adding data stores to ESX hosts, creating vSwitches, templates, migrating VMs across ESX hosts.
• Installed, maintained and administered Oracle 10g and DB2 Server on Sun Servers.
• Worked on Volume management, Disk Management, software RAID solutions using Veritas Volume manager and Solaris Volume Manager.
• Performed file system tuning and resizing using Veritas File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Installed, configured Nagios on Linux, Solaris clients.
• Set up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
• Set up user and group login ID's, printing parameters, network configuration, password, resolved permissions issues, user and group quota.
• Created and maintained user accounts, profiles, security, rights, disk space and process monitoring.

Environment: RHEL 4.x 5.x, SUSE 9, 10, Solaris 9, 10, VMware 4.x, 5.x, Nagios, Sun SPARK T Series, HP ProLiant DL Series, Veritas NetBackup, Veritas Volume Manager, Samba, NFS, NIS, LVM, Linux, Shell Programming.