SUMMARY

• System Engineer with over Seven years of experience with extensive experience in Installation, configuration, tuning, upgrade of operating system and application working in various designations like System Admin, System Engineer and DevOps Engineer.
• Close to 4 years of experience working on various DevOps Environments and various tools like Puppet, Chef, Ansible, GIT, SVN, Jenkins, Docker, Kubernetes, Bit bucket, Clearcase, Jira, CloudBolt, Artifactory as a DevOps Engineer.
• Experience working on various flavors of Linux and Unix like Red hat 4.x, 5.x, 6.x,7.x, Suse Linux, Ubuntu, CentOS, AIX 5.2 /5.3 /6.1 /7.1 and Solaris.
• Experience in scripting languages Ruby, Shell and Python.
• Experience with Configuration Management Tools (PUPPET, CHEF, Ansible).
• Deployed Puppet, Puppet Dashboard, Puppet DB for configuration management as part of architectural implementation.
• Experience in development and configuration experience with software provisioning tools like Chef, Puppet, and Docker.
• Created various modules and manifests in Puppet to manage client configurations.
• Experience of Jenkins/ Hudson, VS Build Pro, Apache Ant, Apache Tomcat, Subversion, Git, Maven.
• Extensively worked on various Version Control Tools like Bitbucket, GIT, SVN.
• Created instances in AWS as well as worked on migration to AWS from data Center.
• Experience in installing, managing vCenter Server, VMware ESXi Hyper - V.
• Implemented and configured Kickstart/Preseed installation on RHEL/CentOS/Ubuntu
• Experience in Installation, support and maintenance of UNIX/Red Hat Linux ES/AS 5.1/RHEL 5.x, 6.x, and 7.0 Ubuntu1404 servers.
• Worked on developing complex build, test, provision, secure and deployment systems and providing support to a large community of developers and testers.
• Installed and Configured security and application tool like TCP wrappers, SSH, BIND, LVM (Logical Volume Manager), array and raid-manager, disk-suite, admin-suite.
• Experience in managing and troubleshooting intranet, FTP and Mail Server and Managing Back-ups.
• Knowledge in Oracle, MySQL, Apache/Tomcat or Web Logic/JBoss Application Server.
• Experience in administration and maintenance of application service like DNS, Mail, HTTP, Apache, Tomcat, Squid, DHCP, SMPT, FTP, POP3, NIS, NFS and Samba.
• Worked on 24X7 off-hour call support rotation.

TECHNICAL SKILLS

Scripting Languages: UNIX shell scripting (Bash& Korn), HTML, VHDL, Perl 5, VI text editing, Awk&Sed, PL/SQL

Software: GNU Tools, Office 2013, Window OS XP/2003,2008, NT 4.0, MS Project, Solstice Disk suite, SVM, Apache, Sun Raid Manager 6.1.1,NFS, Veritas Volume Manager 3.2/3.5/4.1, Send mail 8.12.x, SQL (Oracle 8/9 & DB2), Veritas Netback up 5.1, BMC Remedy, CommVault, vSphere

Operating System: Red Hat Enterprise Linux 2/3/4/5/6.x,7SuSE 9/10, Sun Solaris (7, 8, 9 & 10)Windows 95/98/2000, NT, Ubuntu Server, CentOS, Oracle Linux, XenServer

Hardwares: Intel Based Servers/PCs, Dell/ HP BladeSystem and PCS. Sun Ultra 5/10/60Sun Enterprise (E250/450, 5000, 6500),Sun A1000/D1000/3310FC Array, Netra T1, Sun Fire (280R, 420R, V210, V240, V250, V440, V480, V490, V880, V890),Linux Server

Networking: NFS, AutoFS, NIS, DNS, DHCP, LAN, WAN

DevOps: Puppet, Chef, GIT, SVN, Jenkins, Docker, Bitbucket, Clearcase, Jira, CloudBolt, Artifactory

Virtualization: VCenter Server VMware ESXi, VSphere, VMware ESX.

PROFESSIONAL EXPERIENCE

Confidential, ROCHESTER, NY

DevOps Engineer

Responsibilities:

• Automated configuration and deployment of Linux and Windows machines using Puppet.
• Ticketed changes and requests through Jira and managed requests through an internal process.
• Worked on Designing, Implementation, Configuring, & Managing of Puppet & Ansible.
• Automated various applications, from scripting till production deployment using Puppet & Ansible
• Ran Puppet changes through continuous integration pipeline in Jenkins using the beaker-testing framework.
• DeployedJava/J2EE applications to application servers in an Agile continuous integration environment and also automated the whole process.
• Migrated servers from on Premises to AWS cloud as well as created EC2 instances in AWS cloud platform.
• Worked on AWS server provisioning and standardization using Puppet Manifests.
• Involved in deploying projects on private cloud environment like PaaS & IaaS
• Implemented cloud services IaaS, PaaS, and SaaS which include Openstack, Docker and OpenShift.
• Involved in development of application usingJava Script.
• Installed and configured Red Hat Satellite server for package transfer across servers, to store client’s system profile and to control other servers in the network.
• Wrote Puppet manifests on conditional expression based on agent specific data, which is available through Facter.
• Created various modules and Manifests in puppet to automate various applications.
• Virtualized the servers using the Docker for the test and dev-environments needs and used Docker containers for configuration automation.
• Install, configure, maintain and automatemultiple Redhat/CentOS Linux environments via Puppet and Foreman.
• Worked on Integrating Docker with Puppet Enterprise 2016.4.
• Monitored 4000 Nodes using Puppet console across 4 geo sites to support them using puppet.
• Used Bitbucket as Version control tool to push code and documented the purpose of each module in README for future reference.
• Worked on Liquibaseto check out code from Git to build and deploy WAR files to Tomcats, and SQL scripts to Oracle database.
• Introduced Hiera concept to deploy code to different geo’s to save time for the organization.
• Evaluated the benefits for upgrading to Puppet 2016.2.1 from 2015.3.1
• Used Ruby, Python coding for patch automation.
• Wrote Bash/Shell/Perl scripts for managing day-to-day transactions & for automation of routine tasks.
• Installed compile masters to reduce load on master server managing 4000 Nodes.
• Supported offshore team technically to evaluate automation tasks.
• Provided 24/7 on-call supports in debugging and fixing issues related to Red Hat Linux.

Environment: Linux (RHEL 5.x & 6.x), Ubuntu, Solaris, Windows, Oracle 11g/10g, LDAP, Bash, Ruby, Python, EMC Storage SAN, PRSTAT, Puppet, Artifactory, Clearcase, CloudBolt, Bitbucket, Nodes, Puppet console, Docker, AWS, EC2 instance, Hiera, Jenkins, Jira.

Confidential, AUSTIN, TX

DevOps Engineer/ Linux Consultant

Responsibilities:

• Installation/Maintenance of Hardware/Software in Production, Development & Test Environment and worked with the team for the automation of various servers and applications.
• Worked on Installation and configuration of DevOps tools Puppet & Foreman.
• Created and managed a Docker deployment pipeline for custom application images in the cloud using Jenkins.
• Created various modules and Manifests in puppet to automate various applications.
• Worked on migration of Application from Physical server to AWS cloud and managed the Cloud.
• Used Jenkins as a tool for build management to automate software build.
• Used source control and version control like GIT and SVN to manage the software code base and revisions in a repository.
• Created automation withPuppet/Foreman for migration.
• Used Nagios for system monitoring and Splunk for log management.
• Installed/Configured/Maintained/Administered the network servers DNS, NIS, NFS, SENDMAIL.
• Installed and configured Red Hat Satellite server for package transfer across servers, to store client’s system profile and to control other servers in the network.
• Wrote Bash/Shell/Perl scripts for managing day-to-day transactions & for automation of routine tasks.
• Monitored the performance of the system using PS, PRSTAT, VMSTAT, MPSTAT, PERFMETER and IOSTAT to check the CPU utilization, bottlenecks of I/O devices, Memory usage and Network traffic.
• Tuning the Kernel parameters for the performance of applications like Oracle, WebLogic.
• Responsible for configuring Postfix mail relays with Mail Exchangers, Bind DNS Server and clients, SNMPv3 and NTP relays.
• Provided 24/7 on-call supports in debugging and fixing issues related to Red Hat Linux.

Environment: Linux (RHEL 5.x & 6.x), SUSE 11/10, CentOS (5.x, 6.x), AIX 6.1, Oracle 11g/10g, LDAP, Puppet, Forman, Jenkins, GIT, SVN, AWS, Docker, Splunk, Nagios, F5 Load balancers, Site Minder 5.5/4.5, DNS, NIS, NFS, SNMP, NTP, PS, PRSTAT, VMSTAT

Confidential, DALLAS, TX

Systems Engineer/ DevOps

Responsibilities:

• Involved in Administration tasks on RHEL and documentation for the projects executed.
• Installed, monitored and supported Web and Application Servers on UNIX and Linux.
• Involved in installing and configure Oracle Cluster ware and Oracle RAC.
• Installed, configured and Maintained RHEL 6.x/7.x on HP c7000 Blade system.
• Extensively worked on Puppet to automate the environment.
• Extensively worked on creating Puppet modules as per the business requirement.
• Hands on knowledge on Ruby and Python scripting.
• Worked on AWS cloud: created instances and migrated various applications to AWS.
• Used Nagios as a monitoring tool to monitor the day-to-day activities of the servers.
• Worked on VERITAS Volume manager. Created disk groups, volumes, volume groups and RAIDs using VERITAS volume manager. Creating new file systems, mounting file systems and unmounting file systems.
• Created and maintained users, profiles, security, rights, disk space and process monitoring.
• User account management, worked with Perl, shell scripting (ksh, bash) to automate administration tasks.
• Extensively worked in Networking, DNS, NFS and TCP/IP.
• Worked with team for network & UNIX security procedures.
• Monitoring and reporting on all hosted servers (memory, disk space, log rotation, cleanup)
• Responded with the incident response team to assess any detected threats, as well as assist with the appropriate incident response to actively engaged threats.
• Worked on Change management application for management of problem tickets and production change requests.

Environment: RHEL 5.x, 6.x, Oracle Enterprise Linux, Oracle Database 12c, Puppet, Ruby, AWS, Nagios, VSphere 5.1, Windows 2008 Server, BMC Remedy IT Management Suite

Confidential, BENTONVILLE, AR

Linux - Unix Administrator

Responsibilities:

• Worked on RHEL 4/5/6 SUSE Linux 9/10/11, and Ubuntu (8.04 & 9.04).
• Installed and configured Linux servers using kickstart & supported various applications on Linux environment followed by performance tuning, patching and maintenance.
• Working knowledge on Apache, Tomcat and JBoss.
• Supported 300+ Linux servers in production/stage/development environment.
• Created VMware Lab setup as per requirement using VMware ESXi servers.
• Worked on VMware Virtual Center Server for centralizing ESX and ESXi servers.
• Collaborated with the EMC/Netapp team for the storage requirements in Blade Hardware.
• Troubleshoot and supported Linux Apache, MySQL.
• Provided Support of multi flavor UNIX & Linux environment with various responsibilities.
• Implemented Domain Name Server by Using Primary and Secondary DNS Servers.
• Configured Red Hat Enterprise Linux Server as a Data Storage Server.
• Installed/configured DNS, DHCP, NFS, NIS, http, ftp and other network related services.
• Unix/Linux user's creation, file/dir. level permissions, Sudo permissions etc.
• Used VM converter to convert Physical machines in VMware VMs.
• Updating/patching Linux Servers with latest rpm packages.
• Extensively Worked on Litespeed web technology, Apache web servers and Nagios.
• Day to day duties for Linux server maintenance and support to developer's team for their issues application, tuning, troubleshooting, and software running.

Environment: Red Hat Linux (4.x, 5.x), SUSE (9.x, 10.x, 11.x), Ubuntu (8.04, 9.04), Puppet, Apache, Tomcat, JBoss, VMware, XEN, KVM, ESX, MySQL, Subversion, Nagios, WAN, LAN, TCP/IP.

Confidential

LINUX/UNIX SYSTEM ADMINSTRATOR

RESPONSIBILITIES:

• Installing Linux RHEL, Centos operating systems on x86 and Dell PowerEdge server. This included provisioning the environments on VMs created on vSphere 4.0
• Involved in Disk administration using LVM’s and implemented file system expansion.
• Analyzed the performance of resources like CPU, Memory, Disk and Swap by using commands like prstat, vmstat, sar, iostat, swap.
• Managed/configured active directories; setup firewall and fixed the security issues.
• Configured password less login through SSH by generating key using ssh-keygen.
• Configured and implemented DHCP, DNS, SAMBA installation and configuration on different platforms in heterogeneous Network environment.
• Patch and package administration for installation of patches as per the company policy and installation of packaged application.
• Support and troubleshooting of Linux Apache, MySQL. Have knowledge on MySQL, Oracle Administration.
• Modified scripts in Bash and Korn shell for optimizing day-to-day administration.
• Creating and modifying Standing Operating procedures for the team.
• Following change management process and tickets using Remedy tool.

Environment: s: Redhat Linux 3,4,5 logical volume manager, server dell r10, r410, r910 servers, dns, nfs, smtp, web server apache 1.3x

Confidential

System/Network Administrator

Responsibilities:

• Deployment and maintenance of Redhat Linux, Windows Server 2003 & ESX/ESXi servers and app software in across the network mostly Dell, HP and IBM hardware.
• OS upgrades and installation of third party software, packages and patches.
• Involved in building the Unix/Linux servers, migrated data one datacenter to new datacenter.
• Build the Linux Firewall for network and implement to secure the network.
• Efficiently managed RAID, File system through LVM
• Provided on-call pager support for Critical Production Systems and applications and Documentation writing and re-organizing within portal
• Installed the latest patches for, Oracle on Red hat Linux servers, Configured and administered Sendmail, Samba, Squid servers in Linux environment,
• Worked on configuring SSL certificates in, Apache, Apache Tomcat, thread dumps
• Initiating the crisis management calls and provide troubleshooting during the outage situation
• Installed, Configured and Maintained the DHCP, DNS, NFS, NIS, send mail server & LDAP.
• Performance tuning and preventive maintenance, performed daily backup.
• Scheduled full & incremental backups using Net Backup on daily, weekly and monthly basis. Experience with adding and configuring devices like Hard disks and Backup devices etc.

Environment: Sun Solaris, Red Hat Linux, DNS, DHCP, NFS, SAMBA, Apache, SMTP