SUMMARY

• Overall 6+ years of IT industry experience as a System Engineer, DevOps and Production Support of Various applications on Red Hat Enterprise Linux, Ubuntu, and Windows environment.
• Experience in installing, configuration, support, upgrading and patching Linux servers using Red Hat Satellite Server and worked on registering different client servers and involved in building channels and pushing the packages to master Red hat Satellite Server.
• Implementation and administration of VMware ESXi 4.x, 5.x, vCenter for running Redhat Linux, windows Servers on Production and Development.
• Experienced in various source code management activities using tools like GIT, SVN involving branching and Merging strategy, configuration and administration maintenance, daily merges, tagging and remote repository.
• Expertise in scripting for automation, and monitoring using Shell, Ruby, Python and Perl scripts.
• Extensively worked and Administered with automation tools like Jenkins and Bamboo to implement the End to End Automation.
• Strong proficiency in supporting Production Cloud environments (AWS and VMWare) as well as traditional managed hosted environments.
• AWS Cloud platform and its features which includes EC2, VPC, EBS, AMI, SNS, RDS, EBS, CloudWatch, Cloud Trail, CloudFormation AWS Config, Autoscaling, CloudFront, IAM, S3.
• Managed virtual machines using VMware, AWS.
• Experience in using configuration management tools like Puppet/Ansible and knowledge on Chef.
• Application Deployments & Environment configuration using Puppet and Ansible.
• Managed the software configurations using Ansible and Puppet for configuration management to existing infrastructure.
• Installation of Python and setting up SSH connection on remote nodes for configuring, managing and deploying software application on the nodes, using a powerful automation software called Ansible.
• Develop, enhance and maintain the build, deployment and configurations for continuous integration and automate regression and acceptance testing.
• Written Chef Recipes to automate our build/deployment process and do an overall process improvement to any manual processes.
• Knowledge on creation of Puppet manifests files.
• Worked with build tools like MAVEN and ANT for the building of deployable artifacts such as war and ear from source code.
• Experienced is using Apache Tomcat, JBOSS, and WebLogic Application servers for deployments.
• Experienced with monitoring tools such as Nagios and CloudWatch.
• Experienced in using databases like MySQL and Oracle.
• Experienced in integrating unit tests and smoke test with code quality analysis tools like JUnit, Jira and Selenium.
• Managed environments DEV, SIT, QA, UAT and PROD for various releases and designed instance strategies.
• Experience in installation and management of network related services like DNS, Apache, LDAP, SAMBA, HTTPD, VSFTP, SMTP and Active Directory.
• Experienced with IT security compliance and server hardening.
• In - depth understanding of the principles and best practices of Software Configuration Management (SCM) processes, which include compiling, packaging, deploying and Application configurations.
• Network installation and configuration. Troubleshooting general TCP/IP/DNS, DHCP, Network problems switches and port map network drives.
• PC, Desktop-Laptop Refurbishing following standardized checklist for system diagnosis, operating system installation and troubleshooting, hardware setup & configuration, software installations including Windows.
• 24/7 support for issues arising in production for mission critical and enterprise level applications.

TECHNICAL SKILLS

Platforms: Linux (Red Hat 4.x, 5.x, 6.x,7), CentOS 5,6 and Ubuntu 12,14, Unix (Solaris 8,9,10,11), Windows

Programming Languages: Core Java, Java Script, Shell, Python, Perl, Bash, Ruby

Version Control Tools: GIT, GitHub and Subversion

Networking: HTTP/HTTPS, FTP, NFS, SMB, SMTP, SSH, NTP, TCP/IP, NIS, DNS, DHCP, LDAP, LAN, WAN, Routers/Switches

Storage: LVM, NAS, SAN, TSM, Rubrick, NetApp filers and Oracle ZFS

Build tools: Ant and Maven

CI and CD tools: Jenkins, Bamboo

Configuration tool: Ansible, Puppet and Chef, Salt Stack

Cloud Technologies: AWS

Web/Application Servers: Web logic, JBoss, WebSphere, Apache Tomcat

Bug Tracking Tools: JIRA, Fisheye

Monitoring Tools: Nagios and Splunk, SolarWinds

Database: Oracle, PL-SQL SERVER and SQL.

PROFESSIONAL EXPERIENCE

System/DevOps Engineer

Confidential

Responsibilities:

• Installation, Administration, Support and Maintenance of Red Hat Enterprise 4,5,6,7, Centos 5,6,7 and AIX on VMs and physical servers.
• Analyzing and resolving problems associated with servers, hardware, applications, and software.
• Responsible for creating package collections for Linux operating systems, installation and deploy applications, updates, and security patches.
• Installed, configured and Deployed Latest Red hat satellite from scratch and migrated systems.
• Performed Patches, upgrades, bug fixes on both physical and virtual Red hat Linux servers using remote execution from Red Hat subscription management service (RHSM).
• Work with security team to modifying application users' password policies, group policy, UID and GID assignment policies.
• Administrated server consolidation program through use of VMware ESX server and VMware Virtual Center, using Virtual Center, ESX, creating VMs, using/building VM templates and customization files, Snapshots and scheduling tasks.
• Expertise in Installation & Setup of code versioning tools like GIT/ SVN Repository (Version Control System) on Linux at client side.
• Extensive experience using JENKINS CI/CD PIPELINES, MAVEN and ANT as a Build Tool for the building of deployable artifacts (war & ear) from source code.
• Designing and implementing for fully automated server build management, monitoring and deployment by Puppet.
• Worked on puppet to create manifests and Modules to automate deployments and install rpms.
• Created Puppet manifests, profiles and roles module to automate system operations.
• Extensive working experience with broad range of AWS Cloud Services like EC2, ELB, Auto Scaling, VPC, Route53, RDS, S3, IAM, SNS, SQS, Dynamo DB, Elastic search and Cloud Watch.
• Creating S3 buckets and managing policies for S3 buckets and utilized S3 bucket and Glacier for storage and backup on AWS.
• Designed roles and groups for users and resources using Identity Access Management (IAM).
• Expertise in setting up Docker daemon, Docker client, Docker hub, Docker registries, Docker images from Docker file and handling multiple images by storing them in containers to deploy.
• Worked on Kubernetes orchestration.
• Used Kubernetes for scaling the applications.
• Worked with others administrator to ensure Splunk is actively working and monitoring on the current infrastructure implementation.
• Created tuned alerts for event classes and error reporting and response mechanisms Integrated SolarWinds alerting functions with automated trouble ticket creation.
• Good experience in reviewing system logs and setting up cron jobs for backups and monitoring process.
• Supported several Servers in Dev, QA, Staging and Production environments plus primary support to all kind of issues for Red hat 5.x, 6.x and 7x Linux and VMware.

Environment: Red Hat Enterprise Linux 5,6 and 7, CentOS 5, 6, 7, VMware, Active Directory, Puppet, AWS, Docker, Kubernates, GIT, NetApp, Service-now, DELL PowerEdge 6650, HP ProLiant, Rubrik, TSM, Satellite, SolarWinds, Splunk.

System/DevOps lead Engineer

Confidential, Austin, Texas

Responsibilities:

• Installed and configured of hardware and OS (Ubuntu 12.04, 14.04) on x86 servers.
• Perform planning, configuration, deployment and maintenance work associated with the production environments, supporting 25,000+ Linux servers globally, using KVM based Virtual Machines and bare metal servers.
• Worked on Salt-Stack Configuration Management tool. This include Master and Minion set up and configuring Minions, Create, Update and modify Salt Formula and push them to GIT.
• Experience on deploying servers using FAI as an Automated unattended installation on Bare Metal servers across the world.
• Strong knowledge in designing and implementing VLANS and network design in the entire infrastructure.
• Managing DNS zone and many internal tools.
• Actively participate in evolving design and architecture of infrastructure automation, release tools and processes.
• Expertise experience in Systems/Network Administration/Troubleshooting.
• Worked on Scripting (Bash, Python).
• Expertise experience in upgrading/patching thousands of servers in low traffic time.
• Experience in designing workflow for implementing CrayBots in slack using Rest-Api for automated server provisioning and several repeated tasks.
• Experience on running/troubleshooting tests before/after Cluster maintenances during down time.
• Involved in router maintenance during downtime.
• Configured of backbone routers such as Cisco, and Juniper.
• Worked on many datacenter maintenances across globally, including monitoring servers and in low traffic time upgrading servers.
• Experience on deploying CDN Clusters in different server regions.
• Using monitoring tool ELK/Nagios.
• Support for Live/On-Demand configurations utilizingvarious streaming technologies.
• Customer service notification/resolution/updates/ticket queue monitoring.

Environment: Ubuntu 12.04/14.04, KVM, CrayBots, Dell PowerEdge R730 (rack mounted), ServiceNow, Juniper switches and routers, SVN, Git, Salt stack, Nagios, ELK.

DevOps Engineer

Confidential, Atlanta GA

Responsibilities:

• Daily administration of RHEL 4, 5, 6 & 7 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting server issues.
• Build servers, installed tools, configured and provisioned servers as per enterprise standards.
• Building & configuring Redhat Linux systems over the network, implementing automated tasks through crontab, resolving tickets according to the priority basis.
• Exposure and experience on handling NFS share mode operations in ZFS Oracle Storage at share & project level by automation.
• Configured and worked on scripts for DNS look up tests on net group, auto mounting & unmounting the shares at Linux end.
• Experienced on migrating LDAP configuration to host by index at server end.
• Worked on creating and exporting the volumes in NetApp storage.
• Experienced on migration of LDAP in NetApp.
• Experienced in design and maintenance of the Subversion and GIT repositories.
• Managed the software configurations using Ansible for configuration management to existing infrastructure.
• Used Ansible playbooks to setup Continuous Delivery pipeline. This primarily consists of a Jenkins and Sonar server, the infrastructure to run these packages and various supporting software components such as ANT and Maven.
• Wrote several Playbooks and created various roles for applications using Ansible and deployed the Applications/Services on the client hosts.
• Integrated Ansible to manage all existing servers and automate the build/configurations of new servers.
• Build Automation and Build Pipe Development using Jenkins and Maven.
• Managed Confidential Web Services (AWS) infrastructure with automation and configuration management tools such as Ansible or custom-built.
• Created Ansible YAML Playbooks to automate system operations and Created monitors, alarms and notifications for EC2 hosts using CloudWatch.
• Migrated VMWARE VMs to AWS and Managed Services like EC2, S3 Bucket, Route53, ELB, EBS with Ansible Playbooks/Hosts.
• Worked on migration from Datacenter to AWS.
• Migrated various applications from on-premises to the AWS cloud using CloudFormation templates and using Interfaces Directly with Confidential Simple Storage Service (S3).
• Used IAM to create new accounts, roles and groups and Configured S3 versioning and lifecycle policies to and backup files and archive files in Glacier, Configured Elastic Load Balancers (ELB) with EC2 Auto scaling groups.
• Launching Confidential EC2 Cloud Instances using Confidential Images (Linux/Ubuntu) and Configuring launched instances with respect to specific applications.
• Developed build and deployment scripts using ANT, MAVEN as build tools in Jenkins to move from one environment to other environments.
• Designed and developed Continuous Integration pipeline for Continuous Delivery and automated using integrating infrastructure tools SVN, GIT, Jenkins, Ansible and Maven.
• Automated and created templates for deployment of internal applications to Dev, Test and Production environments including the automation of the release processes using Ansible.
• Troubleshoot the build issue during the Jenkins build process.
• Used ANT and MAVEN as a build tools on java projects for the development of build artifacts on the source code.
• Installed multiple instances of Apache Tomcat and helped with the deployment of JARs and WARs on development environments.
• Operations - Custom Shell scripts and Perl VMs and Environment management.
• Involved in the development environment includes Windows Server 2012 R2, Power Shell 4.0, as well as web interfaces for Atlassian Stash, Crowd and Confluence. Public services included GitHub, Bit bucket, CentOS, Ubuntu.
• Used the Elastic Beanstalk to create the web applications with the integration of Docker.
• Worked on Docker container snapshots, attaching to a running container, removing images, managing Directory structures and managing containers.
• Experience working on several Docker components like Docker Engine, Hub, Machine, Compose and Docker Registry.
• Experience working on Docker hub, creating Docker images and handling multiple images primarily for middleware installations and domain configurations.
• Automated jobs by developing custom scripts using Shell (bash, ksh), monitored the servers and Linux scripts regularly and performed troubleshooting steps.
• Responsible for DNS and Configured DNS Servers and Clients, troubleshooting DNS issues.
• Troubleshooting and performance tuning of various systems problems such as application, network and hardware related issues.
• Performed problem determination and restored service using standard procedures.

Environment: Red-Hat Enterprise Linux 5.x, 6.x, SAN, NAS, NIS, VMware ESX, JBoss, Splunk, Oracle ZFS, NetApp Storage, vSphere 4.x & 5.x, ANT, and Maven, Jenkins, Perl, Bash, Python, Ruby, JIRA, AWS, Docker.

DevOps Engineer

Confidential, Frankfort, KY

Responsibilities:

• Support for Windows and Linux problems assigned by client operations.
• Administration of RHEL 5,6,7 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting on both PSeries and VMware virtualization systems
• Creating, cloning Linux Virtual Machines, templates using VMware vSphere client 5 and migrating servers between ESXi hosts.
• User account management and support.
• Managed shared NFS files system, mounting and unmounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services.
• Installing RedHat Linux using Kickstart and applying security polices for hardening the server based on the company policies.
• Performed package administration on Linux using RPM and YUM through RHN Satellite and subscription manager.
• Build and configure a virtual data center in the Confidential Web Services cloud to support Enterprise Data Warehouse hosting including Virtual Private Cloud (VPC), Public and Private Subnets, Security Groups, Route Tables, Elastic Load Balancer, Cloud Watch, Cloud Trail, and Security Management VPC.
• Build application and database servers using AWS EC2 and create AMIs as well as use RDS for Oracle DB.
• Worked on AWS OpsWork, AWS Lambda, and AWS code deploy AWS cloud formation and cloud foundry.
• Install, configure and administer log analyzer tool Cloud Watch.
• Worked on migrating VMware to AWS using snowball and VM Import/Export.
• Experience working on AWS code deploy, lambda, VPC and CLI.
• Experiencing with Nagios, Splunk and SNMP monitoring.
• Configure EC2 Instances, VPC, Route 53, ELB, Subnets, etc.
• Automate site configuration using Puppet.
• Experience with shell scripting (sh, bash, csh, ksh)
• Worked on version control using GitHub.
• Worked on automating builds using Jenkins.
• Worked on automating tasks using puppet
• Worked on tomcat, Jboss install configuration and mongo dB, MySQL.
• Deploy Puppet to completely provision and manage AWS EC2 instances, volumes, DNS, and S3.
• Involved in RPM package building according to the requirement using fpm and deploying the package using puppet enterprises to puppet agent.
• Worked on creating queues for new data center and reporting on console for finalization.
• Used UNIX/Linux shell scripting to automate system administration tasks, system backup/restore management and user account management.
• Implemented and administered In-System Replication using Shadow Image.
• Creation of Oracle and MS-SQL server databases. Maintenance of tables paces in oracle.
• Backup and restore of databases in Oracle and MSSQL Server DB’s.
• Performing Manual backup and resume of the servers or data using Net backup and TSM (Tivoli Storage Manager).
• Responsible for reviewing all open tickets, resolve and close any existing tickets.

Environment: RedHat LINUX 5.5/6.3, Ubuntu, Windows, Oracle, DB2, Jenkins, Git, Subversion, Vsphere, VMware, AWS, Chef, Puppet, Apache Webserver, JBoss, WebSphere Application Server & UNIX shell scripting.

System Engineer

Confidential 

Responsibilities:

• Performed automated installation of operating system using kickstart for Linux.
• Primary Supported to all kind of issues for all Linux Platforms.
• Developed, Customized and build RPMs on Linux for deployment on various servers through software Development life Cycle.
• Assist with day-to-day administration on RHEL 5/6 which includes Installation, upgrade and loading patch management and packages.
• Experience using Kickstart and modified Kickstart based on server profiles and hardware specifications.
• Day to day problem handling like related to File Systems, Disk, Memory, CPU, Network etc.
• User Administration, adding and removing user accounts, changing user attributes.
• Installation and administration of DNS, NIS, NFS, NTP, SAP, Samba, SNMP & DHCP servers.
• Applied patches every quarter regularly to meet audit requirements using Red Hat Satellite server, YUM, RPM tools.
• Installed and Configured SAMBA Server in Linux for accessing the shared files from the windows environment.
• Trouble shooting various networking issues on UNIX machines.
• Installed and configured SSH to enable secure access to the servers.
• Limiting user account privileges using SUDOERS.
• Creation and Maintenance of User Accounts file systems and successfully created logins IDs on large number of servers.
• Developed shell scripts for automating routine day-to-day tasks, management reports, set up alerts for server resources utilization (CPU, memory, disks, etc.).
• Monitor everyday systems and evaluate availability of all server resources and perform all activities for UNIX machines.
• Configuring and Maintaining of Network File Systems (NFS) and Auto mount over the networks.
• Installing and updating Kernel, created and modified swap files and added swap space.
• Good LVM skills, using LVM created VGs, LVs then crated file systems and disk mirroring.
• Installation and troubleshooting, hardware setup and configuration, software installations including Windows.
• Worked on the configuration of server monitoring tool like Nagios.
• Provided 24x7 on-call/ Remote Support for Linux Production Problems.

Environment: RHEL 4.x, 5.x, 6.x, SAMBA, SSH, DHCP, DNS, SMTP, Kickstart, Linux and RPM, NFS, LVM, Bash.