SUMMARY

• IT professional wif over 8 years of experience working as a LINUX / DevOps Administrator wif expertise in Red - hat Linux 4.x, 5.x and 6.x, SuSe, Ubuntu, Cent OS Puppet, Ansible, Jenkins, Jira, Service Now, Windows, Tomcat, JAVA, J2EE Applications and SQL.
• Worked on installation, configuration, maintenance and troubleshooting of Red Hat Linux 7.x,6.x, 5.x, 4.x, Ubuntu 16.04 LTS, 14.04 LTS, Cent OS, SUSE Linux, AIX, Solaris and Windows 2012 standard, 2012 R2 servers
• Strong experience in troubleshooting, monitoring, and 24/7 production support in mission critical environments.
• Experience wif Continuous Integration Tools like Jenkins, Hudson and Bamboo.
• Worked on new projects builds framework using Jenkins & maven, ANT as build framework
• Skilled in implementing Chef, Puppet, Ansible, and Salt Stack. Expertise in Java, .Net build tools Ant, Maven, Gradle, Nant and MSBuild.
• Experience wif Version Control Systems like GIT, CVS, SVN (Subversion)
• Expertise in Installation and configuration of automated tool like Puppet which includes Puppet Master, Puppet Agent Nodes and an administration control workstation.
• Worked wif Docker images & Docker Container. Automated tasks on various Docker components like Docker Hub, Docker Engine, Docker Machine and Docker Registry.
• Extensively involved in DevOps, Build & Release, Configuration Management, Cloud Infrastructure, Monitoring, and Automation using Jenkins, Ant, Maven, Chef, Puppet, Dockers, Vagrant, AWS, Azure, Nagios, SVN, GIT, Apache Tomcat, and Linux etc.
• Expertise in Installation, Configuration, Integration, Tuning, Backup, Crash recovery, Upgrades, Patching, Monitoring System Performance, System and Network Security and Troubleshooting of Unix Servers.
• Strong on middleware application (WebSphereApplication Server Base,WebSphere MQ, JBOSS,WebServers Apache).
• Well Versed in WebServer, Weblogic, JBOSS, Apache, LDAP, Reverse Proxy, Load balancer and Trouble shooting skills.
• Experience in implementing and monitoring High Availability environment using VERITAS Cluster Server, Sun Cluster and Red hat Cluster Configured and used Jump start and Kick start to install OS.
• Strong experience in VERITAS Clusters in supporting high availability mission critical servers.
• Experienced in installation, configuration and volume/File system management using VERITAS Volume Manager (VxVM), Logical Volume Manager (LVM) Backup management and recovery policies using VERITAS Net-Backup.
• Experience in creating physical volume, logical volume, and volume groups using LVM’s in Linux/AIX.
• Proficient in Networking, configuring TCP/IP, DNS, NFS, NIS, NIS+, SAMBA, LDAP, SSH, SSL, SFTP, SMTP, SNMP.
• Worked on AWS cloud and various services on AWS like RDS, Cloud Watch, EC2.
• Exposure to teh Devops environment wif experience working on Configuration Management, CI/CD, Containerization, Cloud and Automation.
• Worked on installation of VMware and monitored Virtual environments wif ESX4, 5.x servers and Virtual Center 2.X.
• Worked on Storage Area Network (SAN), EMC Symmetrix DMX, EMC Mirror View, HP storage and Hitachi data storage.
• Expert in Installation and configuration of Patches and Packages.
• Expensive experience on Puppet and Chef Configuration management.
• Proficient in Installation, Configuration, Support & Maintenance of various SunSparcEnterprise hardware’s and RedHat5.x, 6.x Linux Servers located at Remote Locations.
• Worked on package and configuration management using Puppet, Ansible and Chef.
• Worked on 24/7 technical support to Production environments and Experience in configuration and testing Disaster Recovery Site.
• Experience in writing Shell/Perl Scripts.

TECHNICAL SKILLS

Hardware: SUNEnterprise- E 5000/5500/6500 , SUNFIRE 3800/4800/6800 , E10K/15KSeriesServers, HP-9000, rx8640, rp7420, rp8420, N-Class, L-Class, D-Class, K-Class, IBMe-ServerRegattaP690, P570, RS6000, IBM/HP/DELLBladeServers, SAN(EMC, Hitachi), NAS (NetApp)

O / S: RedHatLinux (RHEL 3.x/4.x/5.x/6.x/7.x), Solaris 10.x/9.x/8.x, HP-UX (11.x), IBMAIX (5.x), Windows 2012 Standard/2012 R2

Version control: GitHub, SVN, CVS

BackupManagement: VERITAS Netback up 4.x/5.x/6.x,UFS dump, UFS restore, TAR, DD, CPIO

ScriptLanguages: Shellscripts, PERL, YAML, Powershell

WebTechnologies: Apache 2.x/3.x, IPLANET 4.x/5.x, WEBLOGIC 8, Web sphere 4..x/5.x

Storage: SAN, EMC Symmetrix / Clarion, iSCSI, SNAP, NAS, DAS

Cloud: AWS, Azure, VMware, Open stack(Rackspace), Docker and salesforce

Build/Version Control tools: Ant, Maven, GNU Make, rpm

Continuous Integration tools: Jenkins, Hudson, Bamboo, TFS, Team City, Build Forge

Configuration Management tools: Chef, Puppet, Ansible

Tracking tools: Jira, Remedy, Bug Zilla, Service Now

PROFESSIONAL EXPERIENCE:

Confidential, Chapel Hill, NC

Sr Unix Engineer

Responsibilities:

• Installed, updated, maintained and deployed applications, software, and patches using automation tools like Ansible and Puppet.
• Performed all necessary day to day Gitlab support for teh project along wif implementing and maintaining teh branching and build/release strategies.
• Installed and managed different automation and monitoring tools on Ubuntu servers like Zabbix and Nagios.
• Installed, configured and administered Jenkins a continuous integration tool on linux machines along wif adding/updating plugins such as SVN, GIT, Maven, ANT and Ansible.
• Used Ansible for automation of repetitive process like installation of Apache Tomcat, Mysql, user administration, file management and directories permissions.
• Managed SSL s for web and application servers.
• Performed configuration of standard linux and networking protocol such as SMTP, DHCP, DNS, LDAP, NFS, HTTP, SNMP, SCP, TCP and others.
• Managed systems routine backup scheduling jobs like enable and disable cron jobs, enable system, logs and network logs of servers for maintenance, performance, tune as well as test.
• Installed, configured, cloned VMs on VMware 5, Vsphere 4.0, configured ESX hosts, added datastore to ESX hosts, created Vswitches, templates and migrated VMs across ESX hosts.
• Configured kickstart server and applied patches to Ubuntu 16.04/14.04 LTS servers.
• Performed physical to virtual, virtual to virtual migration of servers to support data center migration projects.
• Handled day to day operations, installed software, applied patches, managed file systems, monitored performance and troubleshooted alerts.
• Developed and implemented Software Release Management strategies for various applications prominent agile methodologies.
• Wrote Ansible playbooks for installing different packages, setting parameters, managing web applications, configuration files, versioning, commands and user mount points.
• Involved in writing playbook for scratch to upgrade servers, reduce downtime of running site.
• Analyzed and resolved conflicts related wif merging of source code for GIT.
• Used Jenkins for continuous integration and deployment into Tomcat application server.
• Researched, analyzed and performed extensively on configuration management tool like Ansible puppet, Chef and Salt stack according to client environment and need along wif installation and configuration of these tools in development environment.
• Installed and configured Microsoft Hyper-V server as well as applied patches, installed software and applications as per server owner request.

Environment: Ubuntu 14.04/16.04 LTS, Nagios, Ansible, Puppet, Chef, Jenkins, Apache, JDK, Git, SVN, VMware, DNS, LDAP, SCP, TCP, Mysql, Tomcat, Microsoft Hyper-V, Active Directory

Confidential, Alpharetta, GA

Sr. System Engineer (Unix/Linux)

Responsibilities:

• Responsible to work on Red Hat Enterprise Linux 6.5/7.2 and Oracle Enterprise Linux 6.5 which included installation, configuration as well as day to day maintenance and troubleshooting of those servers in test and dev environment.
• Worked on Windows 2012 Standard/2012 R2 Standard including installation, configuration of servers along wif operating system patches and software applications.
• Deployed and configured VMs using templates through VMware vSphere 4.0 as per client requirement.
• Handled migration of VMs (V2V and P2V) across ESXi hosts to perform maintenance task.
• Pushed patch and software policies using HP Opsware to physical and virtual servers.
• Managed compute and storage resource capacity to optimize system performance increasing VM density.
• Wrote scripts on Bash and Shell to perform various task from backup, recovery and automating jobs.
• Managed configuration of SAPM (Shared l Password Management) on physical and virtual devices.
• Supported offshore team for Netbackup and LDAP registration, VMs location issues, as well as asset verification of SAN and NAS.
• Completed application and server migrations from legacy environments while maximizing utilization and density.
• Facilitated new hire for building servers, decommissioning of server, managing tickets system for change request and incidents.
• Installed, integrated, tuned, and troubleshoot Apache, Tomcat, Java and Oracle Web logic 10.3 application servers.
• Decommissioned physical servers using DBAN image, verified teh physical server for any NAS and SAN storage and Serial Numbers before wiping teh disk. Deleted teh virtual server from teh VMware as per server owner request.
• Performed daily backups, restoration of data as per requests from developers using Veritas Netbackup.
• Veritas File system and Veritas Volume Manager 2.5 are used to configure teh RAID 1 and RAID 5 Storage Systems.
• Troubleshoot network and DNS issues and handled Veritas Netbackup server & client connectivity problem.
• Attended daily scrum meeting through Webex for project update and status of request ticket.

Environment: RHEL 6.5/7.2, Oracle Enterprise Linux 6.5, Windows 2012 Standard/2012 R2, VMware ESXi, VMware vSphere 4.0, HP Opsware, HP Proliant DL780- G7, G8 & G9, SAPM, DNS, LDAP, SAN, NAS, Bash, JBoss, Apache, NFS, NIS, FTP, Weblogic, Active Directory, Cyber Ark

Confidential

DevOps /Linux Administrator

Responsibilities:

• Installation, update, maintenance and deployment of application, servers, service and software using Puppet automation tool.
• Performed automated user management, installation and configuration of various services and backup-using Puppet.
• Deployed servers using Puppet and wrote puppet manifests for automating build and patching process
• Build and supported AWS and VMware based cloud infrastructure.
• Setup Jenkins jobs using Jenkinsfile instead of traditional Jenkins freestyle job for defining CD Pipeline and better visibility and maintainability storing teh jenkinsfile in Github
• Weekly release of web applications under dotnet and Ruby environment using Git and SVN
• Monitor AWS resources through Cloudwatch. UsedAWSSDK to connect wif Amazon SQS for bulk email processing.
• Extensive experience on installation, configuration and maintenance of AIX, SLES, CentOS, UBUNTU, AIX in Test, development and production server
• Responsible for installation (using kickstart), configuration and administration of RedHat Enterprise Linux4.x/5.x and RHEL 6 at other data center over network.
• Installed and Configured Samba (CIFS) to halp printing and file sharing in teh mixed Environment
• Installed and configured Oracle10g on Linux for teh development team.
• Installed Weblogic 9i/10.3 and configured Domains, Admin and managed servers for Applications to be deployed.
• Setup and configuration of Application Servers JBoss, WebLogic WebSphere, Tomcat .
• Setup and maintained NFS, NIS, and TCP/IP network, configured teh systems for TCP/IP Networking wif teh existing LAN, setting up SSH and SCP features
• Performed Kernel Tuning (for Oracle installation), memory upgrades and RedHat Linux Kickstart installations
• Provided support for multi-path Fiber Channel storage systems, configured multiple Fiber Channel (FC) Host Bus Adapters (HBA) on a Storage Area Network (SAN).
• Configured Firewall and security using SSL, IPtables, TCP Wrappers, SELinux Tripwire, and port scanners.
• Installation & Configuration of software packages in Red Hat Linux. (Using both yum and rpm installations)
• Performed application installation and management on Linux servers for applications like Apache and Tomcat
• Migrating teh Customer VMs from vSphere 4 to vSphere 5.0 Responsible for creating backup and recovering software using EMC Networker in teh office environment.
• Responsible for monitoring servers, applications and switches using Nagios.

Environment: RedHat Linux 4.0,5.0 AS ES, AIX 5.1,5.2,5.3, Veritas Netbackup, SAN Storage, 4.5.5, IBM-z/VM, Oracle 9i/10g, Samba, Windows 2000/2003/2008 Server, Web Logic 9i/10.3, VMware ESX 2.x,, Tomcat, Apache Server 2.x, Puppet, Chef, Ruby

Confidential, Irving- TX

Linux/Aix System Administrator

Responsibilities:

• Installed and configured Red hat Enterprise Server 5.x, 6.x on Dell PowerEdge Blade servers and HP C6000, C7000 blade centers using Kickstart wif PXE for LAMP (Linux, Apache, MySQL and Perl/PHP) installations.
• Installation, Maintenance, Administration and troubleshooting of OEL, Linux, Sun Solaris, AIX, HP-UX, Red hat, Cent OS and Windows systems.
• Used Logical Volume Manager for teh management of Volumes including creation of physical and logical volumes on Linux.
• Developed, customized and build RPMs on Linux for deployment on various servers through Software Development Life Cycle.
• Installed and Configured SSH for secured access on Red Hat Linux Systems.
• Installing, configuring various software applications and packages like Apache, Tomcat Weblogic, Oracle.
• Installed and Configured system network monitoring tool (Nagios) and troubleshoot virtual machine issues
• Responsible for Patching (both Operating System and Application Server) and supported configuration of DNS
• Involved in migration of Web Sphere Application Server from 5.1 to 6.0.
• Involved in enabling WebSphere global security using Local OS and LDAP/LTPA mechanism, SSL configuration and Ordering digital certs for Pre-prod and Prod environments.
• Installed PostgreSQL database and written shell script for startup in SuSE Enterprise Linux
• Configured Linux as a router/firewall wif IP Forwarding and ipchains / iptables
• Installed, configured and maintained EMC Backup Advisor for backup
• Setup kick start server and wrote scripts to install RHEL, CentOS and SuSE
• Setting up FTP and NFS servers for file sharing.
• Setting up and configured Samba for file and printer sharing in heterogeneous environment.
• Configuring, administering and troubleshooting of NFS, AutofS (Direct and Indirect Maps), NIS (master, slave and client) and DNS in multi-platform networks Monitoring System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
• Tuning teh Kernel parameters for teh better performance of applications like Oracle, Web Logic.
• Maintained system security, including password checks, permission scans, implementation of security using ASM to ensure Linux environment.
• Responsible for managing teh Puppet Automation tool including installation, deployment, trouble shooting and updating.
• Experienced on Socket level TCP-IP programming Installation of SAMBA 3.3.x server for interface between Linux servers and Windows servers to share files.
• Setting up cron jobs for teh user to deploy scripts on production servers.
• Worked on User administration setup, maintaining account, Monitor system performance.

Environment: HP-UX 11i v1 & v3,Redhat 5, NFS, LVM,Veritas Volume Manager 5.1, DHCP, DNS, SMTP, Puppet, Apache, Dell 6450,1350, F5 load balancing tool and firewall.

Confidential, Boston, MA

Linux/UNIX Administrator

Responsibilities:

• Supported Linux System Administrator customers wif RHEL/SUSE a combination of systems architecture, systems development.
• SAN support from a directory standpoint, technology scaling, server builds, migration and/or transition planning, project planning, and standards validation/development, troubleshooting and problem resolution.
• Installed OAS (Oracle Application Server) on Solaris 9 and its configuration wif oracle database. Installed and configured of hardware and OS (Solaris 10 and RHEL 4/5) on x86 servers.
• To provide ongoing support in systems management and administration of LINUX/UNIX in global-scale environment.
• Patch and Package administration to keep teh servers updated wif teh patches and that implementing packages developed for deployment and load-balance using Local Traffic Manager (LTM) .
• Handled TEMPeffectively Issues related to NFS, NIS, and LVM, Grub corruption, configuration & maintenance of RAID (level 0, 1, and 5).
• Troubleshooting VERITAS Volume Management and cluster server environment.
• Used VERITAS Netback up tool for Backup and recovery, Developed and executed test plans for Veritas Cluster wif Netapp SAN.
• VMware configuration, auto mount, installing Solaris/Linux software and patches, NTP and swap space, memory and capacity alerts, SSH and k5login and hung system reboots.
• Writing scripts in PERL and SHELL to automate teh process.
• Created Korn shell scripts to monitor system resources and system maintenance and Performed administrative tasks such as System start-up/shutdown, and Backup strategy and scheduled cron jobs for job automation.
• Experience in using protocols like NIS, NFS, SSH, SFTP & DNS. Created test scenarios for testing NIS, NFS, DNS and other functionality of teh OS.
• Daily backup and restore operations. Installed and maintained web servers Apache Tomcat and Apache HTTP (1.3, 2.2) Web server in Red Hat Linux.
• Dealt wif Linux Utilities: KICKSTART, SSH, FTP, AUTOFS, Quota Management, wrappers.
• Maintaining device installation and configuration.
• Installation of Firewall checkpoint. Installed and configured IPFilter, to protect Linux system that was placed on teh Internet.

Environment: Red hat Linux 3,4,5,6 Sun Solaris 8,9,10 Sun V440, V890, T5220, T5240 Sparc M4000, Switches, VMware ESX 5.1, oracle 11g, Veritas Cluster Server 5, F5 load balancing tool.

Confidential

Linux/Unix System Administrator

Responsibilities:

• Administration and maintenance of Redhat Linux and SUSE Linux Servers.
• Linux system administration including security, regular auditing for intrusion detection.
• Installation of VMware ESX 3.0x 4.0x infrastructure on HP Proliant Server and administration of VMs Trouble shoots and corrects hardware and OS related problems.
• Worked on teh configuration of server monitoring tool like Nagios.
• Performed application installation and management on Linux servers for applications like Apache and Tomcat.
• Maintain Web Servers, file servers, firewalls using Application Security Manager (ASM)
• Installation & Up-gradation of Linux Configuring Hardware in all range of Machines from workstations to Enterprise servers.
• Implementing and Administering Network File Systems using Auto-mounter and administering user and OS data files in LDAP, NIS, Windows Active Directory and NFS environment.
• Tuning Kernel parameters for teh better performance of applications like Oracle and disaster recovery solution. Deployment and load-balance of applications and software using Local Traffic Manager.
• Experience in Shell scripting to automate system administration jobs.
• Responsible for all day to day system administrator tasks (Disk Space /File System /User logins) Change Management and Implementation of Changes to teh Environment Management of user accounts and groups, File systems and disks.

Environment: Redhat 4.0, 5.0, CentOS, E15K, E12K, E10K, E6800, E-6500, E5500, E-4500, E-3500, F5 Security and load-balancing, Veritas file system, Web logic 8.1.