SUMMARY

• 9 years of years professional IT experience, involved in Systems Administration/Engineering, Configuration Management, Build, Release and Deployment Automation, Agile Methodologies with Integration of DevOps tools, Platform Management, Security and Compliance, Operations and Support, Application/Platform Monitoring, Software Development, Application Development Lifecycle Support for both On - Premises and Public Cloud/Server Environments, Application Containerization/Orchestration, Cloud Migration based of Microsoft Azure/Amazon Web Services(AWS).
• Worked with Server Life Cycle Management Tools Such as Foreman Integrated with Puppet, IPAM, DNSsec, Provisioning and Deployment Templates for different Linux/Unix Based Environments (i.e RedHat, Ubuntu, Suse, Oracle Enterprise Linux) to Support Self Service Portal for On-Premises Streamlined Application Deployments.
• Expertise in AWS services Like EC2, Load Balancer, Lambda, S3, RDS, DynamoDB, ElasticSearch, Aurora, SQL, VPC, Route53, IAM, WAF, Security Hub, Macie, CloudFormation, AWS Fargate, Elastic Container Service (ECS),Elastic Kubernetes Service(EKS),Kinesis, EBS, Elastic Beanstalk, CloudWatch, CloudTrail, Security Groups, SNS, SQS, Direct Connect.
• Profusely worked on Version control tools like Subversion, GIT based Gitlab, Atlassian Stash to track and collaborate changes made by different people in source code.
• Efficient in writing Jenkins CI/CD pipelines to drive all MicroServices builds also creating Groovy Scripts for setting up Continuous Integration for new branches, build automation, Plugin management, Securing Jenkins.
• Profusely worked on Version control tools like Subversion, GIT based Gitlab, Atlassian Stash to track and collaborate changes made by different people in source code.
• Providing continuous improvement to Agile Software Development teams by working with GitLab/Atlassian based Version Control for Collaboration and Code Reviews. Used Jira Issue Tracking, Pipeline Management, and Wiki Documentation to integrate and automate the code checkout process and webhooks.
• Hands on experience in Branching, Merging, Tagging and maintaining across the environments using SCM tools like GIT, Subversion (SVN), TFS, Bitbucket and used webhooks for integrating with continuous Integration tools Jenkins, Bamboo and ANT, MAVEN and Gradle for generating builds.
• Utilized Kubernetes and Docker for the runtime environment of the CI/CD system to build, test deploy and good understanding of OpenShift platform in managing Docker containers using Docker Swarm.
• Experience in Monitoring performance of the applications and analyzing log information using ELK(Elasticsearch, Logstash, Kibana) stack.
• Installed and used monitoring tool like Splunk, Nagios, CloudWatch, New Relic, App Dynamics and Managed Monitoring Tools such as Nagios for Resources Monitoring/Network Monitoring/Log Trace Monitoring.
• Experience with container-based deployments using Docker, working with Docker images, Docker Hub, Docker registries like Docker.io, Quay.io and setting up private registries.
• Experience in configuring Chef Server/Workstation and bootstrapping Nodes. Wrote Chef Cookbooks and recipes using Ruby script.
• Knowledge on designing Puppet manifests and bootstrap scripts to allow instances for various roles without maintaining AMI’s and worked on Puppet for the deployment of servers with custom scripts.
• Implemented Office 365 and Azure Active Directory for single sign-on, authentication, authorization, and Azure Role-based Access Control (RBAC).
• Having Experience on creating and updating the Various PowerShell Scripts for windows, Active Directory, Azure AD and O365.
• Installed, configured, and managed full end-to-end GIT Lab integration, Pipeline Management. Also, utilized GIT Lab runners to support application testing and fill system level point of contact to support GIT Lab.
• Involved in the functional usage and deployment of applications in WebSphere, WebLogic, Jboss and Apache Tomcat Server.
• Proficient in Jira as bug tracking system and configured various workflows, customizations and plug-ins for Jira and integrated Jenkins with Jira.
• Proficient in writing automation scripts using Python, Ruby, Perl, Shell, here by automating build and deployment process in various enterprise environments.
• Managed and administrated of all UNIX servers, includes Linux operating systems by applying relative patches and packages at regular maintenance periods using RedHat Satellite server, YUM, RPM tools.
• Highly-motivated and able to work with low supervision independently as well as in a team environment. Have practical and terrific trouble shooting skills.

TECHNICAL SKILLS

Cloud Environments: AWS, MS Azure, Open Stack, PCF

Operating Systems: Linux (RedHat, CentOS, Debian Ubuntu), Unix, Windows

Configuration Management Tools: Ansible, Chef, Puppet, Salt Stack

CI/CD Tools: Jenkins, Bamboo, Azure DevOps, Team City, Octopus Deploy

Container Tools: Docker

Container Orchestration Platform: Kubernetes, Docker Swarm, OpenShift

Version Control Tools: Sub Version (SVN), Git, GitHub, GitLab, Bitbucket, TFVC

Build/Automation Tools: Gradle, Maven, Ant, Dotnet, MS Build

Monitoring Tools: Nagios, Splunk, Cloud Watch, ELK Stack, Datadog, AppDynamics

Scripting: Bash/Shell, Python, Ruby, JSON

Databases: Oracle, MySQL, MS SQL, Mongo DB, Dynamo DB

Web Servers: Apache HTTP, Nginx

Application Servers: Apache Tomcat, Apache HTTPD, JBoss, Web Logic, WebSphere

Networking: DNS, DHCP, SMTP, HTTP, SNMP

Repository Management tools: Artifactory, Nexus, Docker Hub, Azure Artifacts

Web Technologies: HTML, CSS, HTTP, Bootstrap, Xml and PHP

Bug/Ticket Tracking Tools: JIRA, Azure Boards

PROFESSIONAL EXPERIENCE

Confidential, Chicago, IL

DevOps Engineer

Responsibilities:

• Worked on AWScloud services like EC2, S3, RDS, ELB, and EBS for installing, configuring and auto-scaling.
• Involved in the migration of the existing legacy infrastructure and recreated the entire environment within Amazon's Web Services (AWS).
• Created functions in Lambda that aggregates the data from incoming events, then stored result data in Amazon Dynamo DB and S3.
• Design roles and groups for users and resources using AWS Identity Access Management (IAM) and implement Multi-Factor Authentication (MFA) on externally available servers and on AWS Console, Monitoring and alerting leveraging Cloud Watch and Cloud Trail.
• Expert level experience with AWS DevOps tools, technologies, and APIs associated with IAM, Cloud Formation, Cloud Watch, AIMs, SNS, EC2, EBS, S3, RDS, VPC, ELB, IAM, Route 53, Security Groups, Lambda, etc.
• Set up and managedELK/DataDog to collect, search and analyze log files across servers, log monitoring and created visualizations dashboards usingKibanain integration withAWS Cloud watch and Lambda.
• Used Lambda to run the code in response to HTTP requests using Amazon API Gateway.
• DevOps role converting existing AWS infrastructure to Server-less architecture (AWS Lambda, Kinesis) deployed viaCloudFormation.
• Experience with AWS S3 services creating buckets, configuring buckets with permissions, logging, versioning, and tagging.
• Responsible for writing the Ansible playbooks which is the entry point for Ansible provisioning, where the automation is defined through tasks using YAML format.
• Worked in an Agile development team to deliver an end to end continuous integration, continuous delivery product in an open source environment using tools like Jenkins.
• Developed and Implemented Kubernetes manifests, helm charts for deployment of MicroServices into k8s clusters.
• Worked in container based technologies likeDocker,KubernetesandOpenShift.
• Point team player on OpenShift for creating new Projects, Services for load balancing and adding them to Routes to be accessible from outside, troubleshooting pods through SSh and logs, modification ofBuild Config, templates,Image streams, etc.
• Managing theOpenShiftcluster that includes scaling up and down the AWS app nodes.
• Managed local Deployments in Kubernetes using Open shift platform, creating local cluster and deploying application containers and Implemented Kubernetes to deploy scale, load balance, scale and manage Docker containers with multiple name spaced versions.
• Extensively worked with Scheduling, deploying, managing container replicas onto a node using Kubernetes and experienced in creating Kubernetes clusters work with Helm charts running on the same cluster resources.
• Writing JSON and YAML templates for cloud formation contributing to our repository on GitHub. Responsible for proper functioning DEV/TEST/STG/PROD environments for these applications.
• Integrated GIT into Jenkins to automate the code check-out process. Managed GitHub repositories for branching, merging and tagging.
• Configuration of various plug-ins for Jenkins for automation of the workflow and developed, tested installation scripts for automated deployment.
• Installed and Configured CI/ CD Pipelines using Jenkins as needed by the application software lifecycle management.
• Responsible for CI/CD process implementation using Jenkins along shell scripts to automate routine jobs.
• Expertise in working with Terraform key features such as Infrastructure as a code, execution plans, resource graphs, change automation and created infrastructure in a coded manner using Terraform.
• Used CloudFormation, Terraform (IAAC) to deploy application architecture using Ansible in to AWS Environments.
• Deploying the spring boot micro services to pivotal cloud foundry (PCF) using build pack and Jenkins for continuous integration, Deployment in pivotal cloud foundry(PCF), binding of services in cloud and installed pivotal cloud foundry on azure to manage the containers created by PCF.
• Implemented Ansible to manage all existing servers and automate the build/configuration of new servers and Involved in Configuration Automation and Management with Ansible.
• Delivered environment mapping in AWS that included Active Directory, LDAP, AWS IAM roles for AWS API Gateway platform. Executed Micro Services with AWS EC Docker/Kubernetes for code building and packaging.
• Developed build and deployment scripts using ANT and MAVEN as build tools in Jenkins to move from one environment to other environments.
• Experience in working on Devops/Agile operations process and tools area (Unit test automation, Build & Release automation, Environment, Service, Incident and Change Management).

Environment: AWS including EC2, S3, VPC, RDS, IAM, AMI, EBS, ELB, Lambda, Apache, Maven, Jenkins, Ansible, Chef, Kubernetes, Helm Charts, Terraform, OpenShift, Docker, Docker Hub, Bash, GIT, Linux.

Confidential, Pittsburg, PA

Sr. Systems Engineer (DevOps)

Responsibilities:

• Worked with Cloud infrastructure based of VPC, EC2, Route53, S3, RDS, DynamoDB, SNS, SQS, Lambda, ECS, EKS, Network ACLs, ELB, NLB, Autoscaling, IAM on AWS using Cloud formation templates and Terraform.
• Used AWS Fargate in collaboration with AWS ECS and EKS for application containerization running to provide high availability, scalability, security and reliability.
• Worked on AWS CloudWatch, CloudFormation, Cloud Trail services and CloudFront to set up and Manage Cached Content Delivery for Both Static and Dynamic Assets.
• Migrating existing AWS infrastructure to Serverless Architecture (AWS Lambda) by deploying Terraform (Iac) code from GitHub repositories to implement AWS Lambda functions to run scripts in response to CloudWatch events in the Amazon DynamoDB table and S3 bucket to HTTP requests using Amazon API gateway and AWS SDK’s.
• Implemented DevSecOps with Jenkins to reduce threats, vulnerabilities and performed risk assessments to detect and analyze threats during the CI/CD process.
• Implemented Security Scans like Static and Dynamic Application testing at each layer of DevOps lifecycle and converted the existing DevOps methodologies/workflows to DevSecOps model.
• Worked with ELK (ElasticSearch, Logstash, and Kibana) Stack Setup for Log Monitoring and Elastic Curator to maintain the ElasticSearch Snapshots.
• Worked with Monitoring and Log Monitoring based tools like Nagios, ELK/EFK stack, Grafana Dashboards, Custom Plugins Distribution, Host and Service Group Configuration using Templates with Ansible.
• Implemented CI/CD strategy in involving Jenkins, Terraform Enterprise and AWS to track Security Vulnerabilities for applications running in AWS ECS using Amazon Security Hub.
• Worked on Terraform Template key features such as Infrastructure as a Code, Execution Plans, Resource Graphs, Change Automation and extensively used Auto Scaling launch configuration templates for launching Amazon EC2 instances while deploying MicroServices.
• Responsible for writing reusable Infrastructure as a Code (IaC) Modules by using Terraform for IaaS, PaaS and SaaS AWS cloud resources and mentoring the peers to write consumable code to automate the infrastructure provisioning for cloud applications.
• Implemented cluster services usingDockerand Kubernetes to manage local deployments by building a self-hosted Kubernetes cluster using Terraform and Ansible.
• Expertise in using Boto3 python libraries integrating with Ansible and Terraform for Managing EBS volumes and scheduling Lambda functions for AWS tasks.
• Experience in setting up and managing Kubernetes clusters by using Helm charts, for deploying any code changes made SCM tool's like GitHub, Bit bucket on the Kubernetes cluster.
• Worked with On-Premises Kubernetes HA Master/Worker Nodes Setup, for different Application Requirements.
• Worked with AWS CloudFormation and Terraform templates to deploy AWS infrastructure using Ansible.
• Involved in AWS Code Pipeline and Creating Cloud formation JSON templates, Terraform Templates and Configured S3 buckets with various Life Cycle Policies to archive the data to storage classes based on requirement.
• Experience in Configuration Automation and Centralized Management with Ansible and Implemented Ansible to manage all existing servers and automate the build/configuration of new servers.
• Virtualized servers using the Docker for the test environments and dev-environments needs and configuration automation using Docker containers.
• Experience with container-based deployments using Docker, working with Docker images, Docker hub.
• Experience in designing and implementing Cloud Automation and orchestration framework in private/public cloud environments involving AWS APIs, OpenStack, VMWare, Chef, Python, Ruby, and Workflow Engine.
• Performed Integrated delivery (CI and CD process) Using Jenkins, Nexus, Yum. Branching, Tagging, Release Activities on Version Control Tools: SVN, GitHub. Creation and editing of Team cityproject and build configurations.
• Experience in writing Automation scripts and provisioning Azure resources like Virtual Machines, Virtual Networks, Traffic Manager, Storage, Service Bus and Scheduler make calls to Ansible scripts that provision/ configure servers on the instances.
• Expertise in Azure Development, Azure web application, App services, Azure storage, Azure SQL Database, Azure Virtual Machines, Azure AD, Azure search, Azure DNS, Azure VPN Gateway and Notification hub.
• Deployed Cloud services (PaaSrole instances) andAzure IaaSVirtual machines (VMs) into secure subnets and VNets and designed Network Security Groups (NSGs) to control inbound and outbound access to network Interfaces (NICs),subnetsandVMs.
• Hand-On experience in Implement, Build and Deployment of CI/CD pipelines, managing projects often includes tracking multiple deployments across multiple pipeline stages (Dev, Test/QA staging and production). Implement CI/CD tools Upgrade, Backup, Restore, API call, DNS, LDAP and SSL setup.
• Deployed the java application into web application servers like Apache Tomcat.
• Worked on writing multiple Python, Shell scripts for internal applications for various organizational automation tasks.

Environment: AWS EC2, S3, EBS, VPC, Elastic search, Azure, Cloud Formation, Dynamo DB, RDS, SNS, Kubernetes, Ansible, Maven, Jenkins, Docker, Terraform, Team city, Shell scripts, Python, Git, GitHub, Jira.

Confidential, Seattle, WA

System/Cloud Admin

Responsibilities:

• Involving in Implementation of various AWScloud Application & deployment using AmazonEC2, S3, RDS(Mysql), Elastic Load Balancing(ELB),Auto scaling, Cloud Front, Elastic Block Storage(EBS), Elastic Beanstalk, Cloud Watch, Identity Access Management (IAM), ImplementingVirtual cloud platforms using Amazon Virtual Private Cloud (VPC),Cloud Formations, Lambda.
• Working on AWS ECS service and Setup clusters and deployed different tomcat-based applications on ECS and configured with Auto Scaling Groups and Load balancer for high availability.
• Implementing AWS services like EC2, Elastic Load balancing (ELB), Route53, S3, Cloud Front, SNS, RDS, IAM with existing projects.
• Monitored AWScloud resources and the applications that deployed onAWS by creating new alarm, Enable notification service using Cloud Watch.
• Implementation of a Continuous Delivery CD framework using Jenkins, Ansible, and Maven in Linux environment.
• Installed Jenkins/Plugins for GIT Repository, Setup SCM Polling for Immediate Build with Maven and Maven Repository (Nexus Artifactory) and Deployed Apps using custom ruby modules through Puppet.
• Installed, configured and administered Jenkins Continuous Integration tool on Linux machines along with adding/updating plugins such as SVN, GIT, Maven, ANT and Puppet.
• Managed Amazon Web Services (AWS) infrastructure with automation and configuration management tools such as Puppet.
• Orchestrated and migrated CI/CD processes using Jenkins and Cloud Formation, terraform templates and Containerized the infrastructure using Docker swarm setup in Vagrant, AWS and Amazon VPCs and to build new project framework using Jenkins & Maven as build tools.
• Migrated applications to the AWS cloud and Used Jenkins, AWS code Deploy plugin to Deploy.
• Researched and implemented an Agile workflow team to deliver an end to end continuous integration and testing of applications using Bamboo.
• Written Chef Cookbooks for various DB configurations to modularize and optimize end-product configuration, converting production support scripts to Chef Recipes and server provisioning using Chef Recipes within AWS environment
• Performed automation ofCI/CD pipelinein private cloud using Jenkins shared libraries and multi-branch pipeline and automated the static code analysis throughSonarQubein Jenkins pipeline for checking code quality.
• Worked on installation of Docker Swarm using Docker toolbox and setup the automated build on Docker Hub.
• Deployed the build Docker images on Mesos using Marathon by using multi-container setup deployed on Mesos.
• Worked in Building a CI/CD pipeline and automate the deployment with Jenkins, Maven, Docker and Ansible and integrated with SonarQube to test the Code Coverage and Quality, Sonar Metrics after static and dynamic analysis.
• Designed and implemented Nexus binary repository and process. Configured pom.xml files to publish the artifacts into Nexus repository as part of the continuous integration (CI) process.
• Created inventory in Ansible for automating the continuous deployment.
• Experience in managing Ansible Playbooks with Ansible roles. Used file module in Ansible playbook to copy and remove files on remote systems.
• Used Ansible to automate Configuration management and to manage Web Applications, Configured Files, Data Base, Commands, Users Mount Points and Packages.
• Responsible for writing the Ansible playbooks which is the entry point for Ansible provisioning, where the automation is defined through tasks using YAML format. Run Ansible Scripts to provision Dev servers.
• UsedAnsible Playbookswith EC2 Systems Manager, Run Command for running complex workloads on AWS and managing a large group of instances for better security, performance and reliability and also used these playbooks to provisionApache web servers, Tomcat servers, Nginx, Apache Spark.
• AutomatedJavabuilds in Jenkins withMavenPlugins and implemented multiple plugins for Code analysis. Installed and administered Artifactory repository to deploy the artifacts generated by Maven.
• Performed job scheduling usingAnsible Tower and automated various infrastructure activities like Continuous Deployment, Application Server setup, Stack monitoring using Ansible playbooks and has integrated with Jenkins.
• Proficiency in configuring and managing monitoring tools such as Nagios and Splunk.
• Engineered Splunk tobuild, configure and maintain heterogeneous environments and have in-depth knowledge of log analysis generated by various systems including security products.
• Maintained and administered GIT source code tool and Created Branches, Labels and performed Merges.
• Worked closely with QA Teams, Business Teams and DBA team and Product Operations teams to identify QA and UAT cycles release schedule to non-prod and prod environments.
• Manage and analyze cloud infrastructure Security incidents and Vulnerabilities by using AWS Config, Control Tower, which gives audit, logs, and reports. Also, recovery from computer-based attacks, unauthorized access, and policy breaches.

Environment: Linux, AWS, Chef, Puppet, Jenkins, AWS, Ansible, Docker, Nexus, GIT, CI/CD, Elastic Beanstalk, Maven, Amazon ECS, Cloud Formation, Splunk, Bash, Shell, Python, YAML, Confluence, Bitbucket.

Confidential

Linux Engineer

Responsibilities:

• Performed Installation, Configuration, Upgrades, Package Administration and Support forLinuxsystems on the clients usingRedHat Satelliteand worked on patches installation, patch upgrades onRedHat LinuxPlatforms.
• Worked on Installation/Configuration, Troubleshooting of Web Servers like IBM HTTP Web Server, Apache Web Server, WebSphere Application Servers, on Linux RedHat & CentOS.
• Building and configuring Red hat Linux systems over the network, implementing automated tasks through crontab, resolving tickets according to the priority basis.
• Linux Kernel, Memory Upgrades and Swap Management. Server builds using RedHat Satellite Server and RedHat Linux Kick Start Installations.
• Installation of patches and packages using RPM and YUM in Red hat Linux and Created and modified application related objects, created profiles, users, roles and maintained system.
• Installation of Adhoc Patches, Security Fixes, Packages on Linux/Unix for Security and Compliance Requirements using BMC Suite.
• Experience in Administration, Implementation, Development and Support of Server Life Cycle Management using Cobbler, Jumpstart and NIM methods for multi platforms like Redhat, SUSE, CentOS, Solaris, IBM AIX.
• Experienced in working onDevOps /Agileoperations process and tools area (Code review, unit test automation, Build & Release automation Environment, Incident and Change Management) including CI/CD based tools.
• Worked on Operations Support for different Vendor/HomeGrown/Custom Applications for Red Hat 6/7 Linux Servers, SUSE and CentOS for On-Premises.
• Responsible for installation and upgrade of patches and packages with BugFix/Security/Enhancement Advisories on RHEL 6/7 using RedHat Satellite 6.
• Production experience in large environments using configuration management tools Chef, Ansible, and Puppet supporting Chef Environment and involved in developing manifests/cookbooks/roles.
• Installing, configuring and administering Jenkins Continuous Integration tool on Linux machines along with adding/updating plugins such as SVN, GIT, Maven, ANT and Puppet.
• Designed variousJenkinsjobs to continuously integrate the process and executedCI/CDpipeline using Ansible PlaybooksandAnsible Tower.
• Using Jenkins AWS Code Deploy plugin to deploy to AWS.
• Built, Configured, Administered Jenkins Continuous Integration tool on Linux machines along with plugins Management such as SVN, GIT, Maven, Nexus, PHP, Puppet and more for CI/CD Practices.
• Configured Jenkins as CI engine to build and promote applications to QA, UAT and Staging to Linux environments.
• Worked in anAgiledevelopment team to deliver an end to end continuous integration/continuous delivery product in an open source environment using tools like Puppet & Chef.
• Worked with Jenkinsfor CI for new branches, build automation, plugin management and securingJenkinsand setting upMaster/Slave configurations.
• Managed Chef Cookbooks to automate system operations AWS Cloud management and Chef Automation.
• Involved in writing Chef Cookbooks and Recipes to automate the deployment process and to integrating Chef Cookbooks into Jenkins jobs forCDframework.
• Installed and used Chef Server Enterprise on premise, Knife Bootstrapping and Composed Chef Recipes, Roles, Environments and Cookbooks including testing with test-kitchen/chef spec.
• Configured Puppet Server for monitoring and installing Puppet Agents to perform automated LDAP Management, SSL Rotation, Core and Layered Products Installations and Configurations using Puppet.
• Experience in branching, tagging, and maintaining the version across the environments using SCM tools like Subversion (SVN), Git, Bit bucket, and GitHub.
• Worked with Custom Facts (Ruby, Shell, and Python) for Puppet/Ansible to be used for catalogue compilation for different application and platform requirements.
• Involved in integrating the GIT, Bit Bucket into the Puppet to ensure the integrity of applications by creating Production, Development, Test, and Release Branches.
• Created Ansible roles in YAML and defined tasks, variables, files, handlers and templates. Created inventory and configured the YAML files for parallel deployment in Ansible for automating the Continuous delivery process.
• Authored Shell/Perl/Python scripting for automation tasks in Linux/Unix to automate resource, job monitoring, alerting and configuration tasks.
• Ability to build deployment, build scripts and automated solutions, using scripting languages such as Shell, Perl, Python and Parsing Formats like Yaml, Json etc.
• Installed and used monitoring tool like Nagios and HPOV, Configured, and Managed Monitoring Tools such as Nagios for Resource Monitoring/Network Monitoring/Log Trace Monitoring, Monitoring focal.
• Systems monitoring and administration of servers for day-to-day problems, patches, user administration, hardware failure, monitoring log files, backup, configuration changes, and documentation.
• Manage file systems using Software RAID and recover an array, manage file systems using Logical Volume Management, resize file systems and protect them with LVM Snapshots.

Environment: Redhat Linux, Jenkins, GIT, GIT Hub, Ansible, Agile, Chef, Puppet, Bash Shell/Perl Scripting, Nagios, Firewall, Maven, Centos, ANT.

Confidential

Linux Admin

Responsibilities:

• As a Linux/Unix system maintained the various servers and Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment
• Installation, configuration and maintenance of DNS server, Mail server, FTP, NFS, RPM and Samba servers on Red hat Linux OS and troubleshooting of Red hat 4.x, 5.x, 6.x Ubuntu 10.x on various hardware platforms.
• Managing approx. 2000 Linux Servers: RHEL 4.x & 5.x, Bash scripting for automation of tasks.
• Worked on Grub, PXE boot, Kickstart, Packages, Yum, RPMs, LVM and file system configuration.
• Extensive use of Logical Volume Manager (LVM), creating Volume Groups, Logical volumes and disk mirroring in Red Hat Linux, HP-UX and AIX.Day to day trouble shooting for end users on UNIX/LINUX.
• Experiences in creating Disk Partitions, Logical Volume Manager (LVM) and RAID Technologies on different File Systems like Ext2, Ext3, Ext4, XFS on various Linux Distributions and also involved in creating Veritas volume manager on Solaris.
• Troubleshooting Backup and Restore Problems Creation of LVMs on SAN using Linux utilities and Linux network, security-related issues, capturing packets using tools such as IP tables, firewall, and TCP wrapper and NMAP.
• Administered Linux servers for several functions including managing Apache Tomcat server, mail servers, and Oracle, MySQL databases in both development and production.
• Experience installing and configuring SSH (Secure Shell) encryption to access securely on Ubuntu and Red hat Linux.
• Management of user accounts, files, and directory permissions, and securing UNIX systems to match industry best practices, such as System start-up/shutdown, and Backup strategy and scheduled cron jobs for job automation.
• Administered various Red Hat Linux Distributions with use of Kickstart to monitor, scale, plan capacity of Servers.
• Installed and used monitoring tool like Nagios and HPOV, Configured, and Managed Monitoring Tools such as Nagios for Resource Monitoring/Network Monitoring/Log Trace Monitoring, Monitoring focal.
• Experience in working with VERITAS Volume Manager vi5.x and VERITAS Cluster Server v 4.x, 5.x also upgrading Veritas Cluster from 4.x, 5.x.
• Job also includes creating templates and deploying Virtual Machines through templates, cloning Virtual Machines and managing Virtual Center permissions. Managing VMware cluster with HA and DRS.
• Using Virtual center server for HA, DRS and vMotion and Build templates from VMs and Creation of VMs from templates.
• Migrate / Upgrade ESXi 5.1 to ESXi 5.5. Experienced on Managing Servers, Storages and Networks.
• Built Linux Compute Nodes using automated scripts (Kickstart scripts) and NFS server.
• Monitoring the health and stability of Linux and Windows System environments.
• Automation of tasks using Cron/At, Shell scripting, and configuration management system.
• Experienced in configuring domain information utilities, such as Active Directory, AAA, LDAP, DHCP, WSUS, and DNS.
• Experience in installing, configuring, supporting, and troubleshooting Unix/Linux Networking services and protocols like TCP, SMTP, HTTP.
• Windows 2012 updates and migrated from Windows 2008R2 server and Build and configure new Windows Servers to include Clusters Windows Server 2003, 2008, 2008 R2, 2012 and 2012 R2 OS deployments, Windows 2003, Windows 2008 R2 and windows 2012 servers.
• Supporting Windows Cluster server running 2-4 nodes on Windows 2003/2008 & 2012 supporting applications like web servers, SharePoint and Active Directory environment.
• Worked on migration of storage level using EMC Replication Manager. Worked on HDS USP, USPV, AMS 1000, and AMS 2500, 9585.

Environment: Redhat 4/5/6, Centos 4.0, Window 2003/2008/2012 Server, Vmware ESXi 5.1, LDAP, San, NAS, Hp Rack Servers, Apache/Tom Web server,, Active Directory, DHCP, WSUS, DNS, Shell Scripting, HTTP, HTTPS, NFS.