SUMMARY:

• IT professional with 8 years of experience as DevOps & Cloud Engineer, Build/Release Management, Linux administrator in all phases of SDLC like Analysis, Design, Development, Deploying, Testing and Maintenance of various web - based applications.
• Experience in managing the security groups on AWS , focusing on high-availability, fault tolerance, and auto-scaling using Terraform templates, along with Continuous Integration and Continuous Deployment with AWS Lambda and AWS Code Pipeline .
• Experience in automating the deployments in cloud using AWS Cloud Formation Templates and designed the Cloud Formation templates to create custom sized subnets , NAT , VPC for successful deployment of Web applications.
• Strong Experience in Administration and Troubleshooting of Azure IAAS Components ( VM , Storage , VNET , OMS , NSG , Site to Site VPN , RBAC , Load Balancers , Availability Sets). Experience in creating PaaS Builds , PaaS Deployments, Storage-Accounts, Queues, CDN, Azure Service Bus.
• Excellent knowledge of Azure compute services, Azure Web apps , Data Factory & Blob Storage , Azure Networking , and Identity & Access Management , Azure AD , Multi-Factor Authentications .
• Experience in migrating on-premises applications to Azure and configured VNETs and subnets as per the project requirement also performed PowerShell scripting to do Patching , Imaging , and Deploymen ts in Azure .
• Experience in deploying, maintaining and troubleshooting the OpenStack environment with Keystone, Nova, Neutron, Glance, Swift, Cinder Heat and Ceilometer.
• Experience in deploying the Spring Boot Microservices to Pivotal Cloud Foundry (PCF) using build pack and Jenkins for continuous integration, Deployments in Pivotal Cloud Foundry (PCF) and binding of Services in Cloud and Installed Pivotal Cloud Foundry (PCF) on Azure to manage the containers created by PCF.
• Hands-on experience on Terraform for building, changing and versioning of Infrastructure and wrote Templates for AWS infrastructure as a code using Terraform to build staging and production environments.
• Experience in working on Ansible Playbooks , Inventory files, Vault feature to configure the servers, deploy software, encryption of data file & orchestrate continuous deployments or zero downtime rolling updates. Worked on Ansible Tower which provides an easy-to-use dashboard, & role-based access control.
• Experience in working on Chef Roles , Cookbooks , Recipes , Templates , Resources , Attributes & Data bags . Proficient in the setup of Chef servers , workstations & bootstrapping infrastructure Chef nodes for configuration management and system deployment tools like vagrant , berkshelf and test-kitchen .
• Experience in Implementing Puppet agent based & agentless configurations, Puppet dashboards , MCollective with active MQ server , plugin-sync , stored configs, Hiera , Factor & and wrote Puppet manifests.
• Experience working on Docker Hub , Docker Compose , Docker Swarm, Docker Container network , creating Image files primarily for middleware installations & domain configurations. Evaluated Kubernetes for Docker Container Orchestration.
• Experienced with deployment automation of all the microservices to pull the image from the private Docker Registry and deploy to Docker Swarm Cluster using Ansible .
• Experience in managing Kubernetes charts using Helm . Created reproducible builds of the Kubernetes applications, managed manifest files & releases of Helm packages. Created Pods and managed using Kubernetes.
• Experience in Implementing CI/CD for J2EE , SOA & Micro services Architecture Environment ( NodeJS , .Net Core , Zookeeper , Kafka , Redis ) using Jenkins , Anthill Pro & uDeploy . Used Jenkins with SonarQube to get the better quality of the Source code.
• Experience in deploying JAR, WAR, EAR and J2EE applications on Apache tomcat server using Jenkins for auto deployment and integrated with ANT and Maven to schedule the builds.
• Expertise in setting up CI/CD using Bamboo with the Artifactory repository ( Nexus, JFrog Artifactory’s ) and resolved update, merge & password authentication issues in Bamboo & JIRA .
• Expertise in Implementing and maintaining the branching, tagging & build/release strategies using SCM tools GIT , TFS , Bitbucket and maintained build packages using Team Foundation Server (TFS) on Linux & Windows platforms.
• Experience in working with the ELK (Elastic Search, Logstash, Kibana) stack & Splunk to analyze & visualize large volumes of log data obtained from servers.
• Experience with Application Performance Monitoring (APM) tools like AppDynamics for monitoring JAVA, .NET, PHP applications along with NewRelic for monitoring performance like browser and for tracking issues in SQL statements. Also had experience with monitoring tools like Nagios , Dynatrace , Datadog and Zabbix to monitor thousands of metrics collected from servers and virtual machines.
• Expertise in the Agile environment of JIRA refactoring existing components & widgets to keep in sync with the emerging new trends of AEM.
• Proficiency in scripting for automation, & monitoring using Shell Bash, PowerShell, PHP, Java, Python, YAML, Ruby & Perl scripts.
• Experience on web servers such as APACHE HTTP server, NGINX, Apache TOMCAT. Worked on application servers such as Oracle WebLogic 9.x, 10.x, IBM WebSphere 6.x, 7.x, 8.x, JBoss 4.1.
• Good working experience with databases like MySQL , Oracle , DynamoDB , NoSQL , Word press , MongoDB, Cassandra and involved in creating stored procedures , functions , triggers and complex queries .
• Experience in implementation and administration VMware , vSphere ESXi 5.x , 4.x , ESX 3.x platform, vCenter 5.x, 4.x and consolidating resources via Virtualization VMware & Hyper-V .
• Experience in Performing OS installations, OS Upgrades, & Server Patching by configuring PXE & DHCP server using Kickstart & Jumpstart scripts on Red Hat Linux 5.x, 6.x & 7.x .
• Experience in creating Disk Partitions , Logical Volume Manager (LVM) & RAID Technologies on different File Systems like Ext2, Ext3, Ext4, XFS on various Linux Distributions & involved in creating Veritas volume manager on Solaris.

TECHNICAL SKILLS:

Clouds: AWS, Azure, OpenStack, PCF

CM Tools: Chef, Puppet, Ansible

CI/CD and Build Tools: Jenkins, Nexus, Hudson, Bamboo, Artifactory, uBuild/uRelease/uDeploy, ANT, Maven, Gradle

Container Tools: Docker, Kubernetes, OpenShift

Version Control Tools: SVN, Git, Bitbucket

Monitoring Tools: Nagios, New Relic, Splunk, ELK, App Dynamics, Dynatrace

Operating Systems: Windows Server, RedHat, Ubuntu, CentOS, Debian, Solaris, SuSe, Mac.

Languages/scripting: Shell Scripting, Python, JSON, YAML, Java Script, HTML, Groovy, Bash, Perl, Ruby

Web/Application servers: Apache HTTP, Tomcat, Nginx, JBoss, Oracle/BEA Web Logic, IBM Web Sphere

Databases: Oracle, DB2, MySQL, MySQL Server 2008, Dynamo DB, MongoDB, Cassandra

Virtualization Tools: Oracle Virtual Box, VMWare, vSphere, ESXi, vCenter, Vagrant

Bug Tracking and Ticketing tool: JIRA, RALLY

PROFESSIONAL EXPERIENCE:

Confidential, Phoenix, AZ

Sr. Cloud/ DevOps Engineer

Role & Responsibilities:

• Worked on data migration projects involving Cloud & Big Data technologies like Microsoft Azure Data Lake, Azure SQL Data warehouse, Apache Spark , Azure Data Factory , Azure Service Bus , Azure Functions Virtual Machine Backup and Recover from a Recovery Services Vault using Azure PowerShell and Portal . Monitoring and implementing security on Azure IAAS VMs and virtual networks.
• Created, configured and managed a cluster of VMs that are preconfigured to run containerized applications using Azure container services and worked on Azure Web Roles, Worker Roles , SQL Azure , Azure Storage , Azure Virtual Networks, subnets, network settings and Azure AD Licenses .
• Involved on migrating SQL Server databases to SQL Azure Database using SQL Azure Migration Wizard and used Python API to upload agent logs into Azure blob storage also configured three types of blobs such as block blobs , page blobs , and append blobs in Azure for storing large amount of unstructured object data such as text or binary data, that can be accessed from anywhere via HTTP or HTTPS.
• Led implementation of Azure Active Directory for single sign-on access to thousands of cloud SaaS applications like Office 365 , Dropbox . Also configured Azure Role-based Access Control (RBAC) to segregate duties within our team and grant only the amount of access to users that they need to perform their jobs.
• Created AWS cloud formation templates to create custom-sized VPC, subnets, EC2 instances, ELB, security groups. Worked on tagging standard for proper identification and ownership of EC2 instances and other AWS Services like Cloud Front, Cloud watch, Ops Works, RDS, ELB, EBS, S3, Route53, SNS, SQS, KMS, Cloud Trail, IAM.
• Encrypted EBS volumes via KMS ( key management service ) to monitor, create alarms and notifications for EC2 hosts using Cloud watch.
• Automated various infrastructure activities like Continuous Deployment, Application Server setup, Stack monitoring using Ansible playbooks and has Integrated Ansible with Jenkins .
• Used Ansible Playbooks to manage Web applications, environment configuration files, Users, Mount points, and Packages. Customized Ansible modules for finding facts about Azure Monitor alarms and taking actions to manage those alarms during deployments.
• Written several Chef Cookbooks & Recipes with Ruby scripting to automate the installation of WebLogic domain & JDK & customized Recipes from Chef Supermarket to align with current requirements.
• Installed and used Chef Server enterprise on-premise, workstation and bootstrapped the nodes using Knife command. Created various Roles & Environments & used Chef Handlers for auto kick-off requirement jobs.
• Written various Docker - Compose files in YAML to run multi-containers applications. Worked on Docker Version Manager to switch between Docker Clients.
• Worked on Docker, OpenShift to manage micro services for development and point team player on OpenShift for creating new projects, services for load balancing and adding them to routes to be accessible from outside.
• Created Terraform templates for provisioning virtual networks , subnets , VM Scale sets, Load balancers and NAT rules and used Terraform graph to visualize execution plan using the graph command.
• Established a local dev workflow that centered around minikube to validate deployments in Kubernetes . Created REST API to store, update, read & delete bucket information on Console using Kubernetes interfaces.
• Involved in setting up Kubernetes (k8s) to cluster & orchestrate Docker containers for running microservices by creating Pods. Took several microservices into production with Kubernetes backed Infrastructure.
• Managed artifacts generated by Jenkins & configured jobs with the Maven for various deployments of .Net enterprise applications in Agile environment, automated solutions using Python & managed JFrog artifacts in SonarQube NEXUS repository.
• Integrated Jenkins with Docker container using CloudBees Docker pipeline plugin to drive all microservices builds out to the Docker Registry and then deployed to Kubernetes . Integrated Selenium automation regression test suite in Jenkins build pipeline.
• Integrated Maven with Jenkins by which the Surefire test reports and Javadoc produced by Maven are captured and to build parallel modules for larger maven projects.
• Worked on authoring pom.xml files, performing releases with the Maven release plugin, and managing artifacts in maven internal repository.
• Coordinated & assisted developers with establishing & applying appropriate branching, naming conventions using GIT source control.
• Performed automation engineer tasks and implemented the ELK (Elasticsearch, Logstash, Kibana) stack for Azure VM hosts, Architected and built out data analysis and dashboarding infrastructure utilizing ELK stack.
• Integrated Splunk with Azure deployment using chef to collect data from all VM Systems into Splunk where it has enabled minimal sharing of private keys on Azure infrastructure across application teams since they no longer had to rely on direct logging to systems.
• Worked on MongoDB and MS SQL Server DB Tasks (DML, DDL Executions, Log Rotations, Table space alterations, user management etc.).
• Implemented JIRA to track all issues pertaining to the software development lifecycle & integrated JIRA with repositories of GIT to track all code changes.
• Created and maintained the Python deployment scripts for Tomcat web application servers. Written Shell scripts to apply the Integration label to all the files which needs manual labelling of files.
• Managed Active Directory Services, created service accounts and monitored Windows event logs to identify issues and troubleshoot. Configured & administered LDAP, NFS & NIS in Linux & implemented Samba for sharing of resources between Linux & Windows environment.
• Configured & administered LDAP, NFS & NIS in Linux & implemented Samba for sharing of resources between Linux & Windows environment . created and cloned Linux Virtual Machines, templates using VMware and migrating servers between ESX hosts using VMotion .

Environment: Microsoft Windows Azure, ARM Templates, Azure Network, AWS, Git, Jenkins, Maven, Chef, Ansible, Docker, Kubernetes, Terraform, .Net, WebLogic, Windows Server, JIRA, Splunk, Elasticsearch, Logstash and Kibana (ELK), Nginx, Tomcat, Windows, Active Directory, PowerShell, Ruby, YAML, Shell, Bash, Python, MS SQL.

Confidential, Palo Alto, CA

Cloud /DevOps engineer

Role & Responsibilities:

• Worked in complete cycle of migrating physical Linux machines to AWS Cloud & configured Apache webserver in the Linux AWS Cloud environment using Ansible automation. Using Ansible with AWS allowed me to reduce costs for the department and eliminate unwarranted resources.
• Deployed Chef and Terraform towards AWS for building, updating, and versioning infrastructure safely and efficiently, as well as creating custom in-house solutions with Chef configurations and designed AWS CloudFormation templates to create custom sized VPC, subnets, NAT to ensure successful deployment of Web applications and database templates.
• Involved in triggering the changes in AWS Dynamo DB integrated it with Lambda, created Cron jobs for initiating our daily batch data pulls, executing our continuous integration tests done under Jenkins & backup the Dynamo DB streams.
• Configured AWS Identity and Access Management (IAM) Groups and Users for improved login authentication. Provided policies to groups using policy generator and set different permissions based on the requirement along with providing Amazon Resource Name (ARN).
• Built the OpenStack cloud platform components like Nova-Compute, Neutron-Networking, Swift-Object Storage, Glance- Image Service, Cinder-Block Storage, Horizon Dashboard and Keystone-Identity Service and so forth.
• Built & managed a large deployment of Red Hat Linux instances systems with Ansible , Terraform Automation and provision virtual servers using vagrant and kitchen in Red Hat VM , provisioned servers in Amazon EC2 .
• Experienced in writing Chef Cookbooks, Recipes, Resources, run lists, managing Chef-Client nodes, and uploading cookbooks to chef-server.
• Used Chef, Knife, Ohai to create cookbooks and recipes to install packages that automate with Linux Setting up Chef Cookbooks to perform build and deployment management.
• Wrote Python and Shell scripts to monitor installed enterprise applications and to get Managed configurations of multiple servers using Chef. Created multiple recipes and customized facts for efficient management of the Chef clients.
• Wrote CHEF recipes for automated uDeploy agent installs/updates, uDeploy agent relays install/update and configuring the same with the uDeploy server.
• Created reproducible builds of the Kubernetes applications, managed Kubernetes manifest files, Helm packages and scheduled, deployed and managed container replicas onto a node cluster using Kubernetes and converted VM based application to microservices and deployed as a container managed by Kubernetes.
• Worked on installing of Docker using Docker toolbox and Strong knowledge on Docker components like Client, Server, Images, Containers and Registries.
• Involved in Writing Docker file to build customized images for creating containers and Also worked on Docker container snapshots, removing images, Docker container image registries and managing Docker volumes.
• Integrated parameterized trigger plugin to pass parameters between jobs during downstream/upstream Jenkins projects.
• Configured Nexus repository manager for managing the Maven artifacts and Implemented JIRA tool for project tracking and work flow control.
• Configured Git with Jenkins & automated the build process through SCM polling. Created post-commit & pre-push hooks using Python in Git repositories. Resolved merging issues during rebasing & re-integrating branches.
• Installed/configured Git and implemented branching strategy suitable for Agile/Scrum development also provided continuous support and maintenance of software builds.
• Troubleshooted, Configured and deployed various enterprise applications in WebLogic, WebSphere and Tomcat.
• Managed in marathon in binding volumes to applications and running databases like MS SQL and PostgreSQL.
• Responsible for performance monitoring of the API's using Grafana for log monitoring, Dynatrace for web request, response time and CPU percentage.
• Implemented & configured Nagios for continuous monitoring of applications in the production environment & enabled notifications via emails & text messages.
• Installed, configured, maintained Virtual Machines , VMware ESXi 5.0/5.5 Host Server , vSphere Suite with P2P & P2V .
• Installed RedHat Linux using Kickstart , applied security policies for hardening server, based on the company policies and also Performed upgrades, patch updates to hardware, operating systems, and applications.
• Working on a variety of Linux platforms RHEL 5.x, 6.x, 7 which includes installation, configuring and maintenance of applications for Prod, Stage and Dev environments.

Environment: Amazon Web Services(AWS), Open Stack, Docker, Kubernetes, Chef, Jenkins, Maven/ANT, GIT, Nagios, Java, .Net, JIRA, Grafana, Dynatrace, WebLogic, Apache Tomcat, MongoDB, Linux/RHEL, Vagrant, Active Directory, LDAP, VMWare Servers, Windows, PowerShell, Ruby, Shell, Bash, Python, Linux, VMware ESX/ESXI Server and Workstation.

Confidential, Cleveland, OH

DevOps Engineer

Role & Responsibilities:

• Worked on multiple AWS EC2 instances , set the security groups , Elastic Load Balancer (ELB) & AMIs , Auto scaling to design cost-effective, fault-tolerant & highly available systems. Migrated VMWARE VMs to AWS with VMDK import tools.
• Utilized Amazon Elastic Block Storage (EBS) which provides persistent block storage volumes for use with EC2 instances in the AWS cloud. Implemented NAT gateways for web apps hosted on private subnets.
• Worked with AWS S3 services like creating buckets, configuring buckets with permissions, logging, versioning, tagging & lifecycle policies to back the data from AWS S3 to AWS Glacier . Worked on Kinesis for gathering the user input data and log files for security purposes and export them to S3 if needed.
• Used AWS Beanstalk for deploying & scaling web applications & services developed with Java , PHP , Node.js , Python , Ruby on familiar servers such as Apache .
• Set CRON Jobs to download daily backups of critical services to on-premise using AWS-CLI . Used AWS API Gateway to make REST API call to Dynamo DB .
• Hands on experience with AWS IAM to set up user roles with corresponding user and group policies using JSON.
• Experience in deploying the Spring Boot Microservices to Pivotal Cloud Foundry (PCF) using build pack and Jenkins for continuous integration, Deployments in Pivotal Cloud Foundry (PCF) and binding of Services in Cloud and Installed Pivotal Cloud Foundry (PCF) on Azure to manage the containers created by PCF.
• Capable of doing Ansible setup, managing hosts file, using Yaml linter, authoring various playbooks and custom modules with Ansible.
• Demonstrated how Ansible along with Ansible Tower can be used to automate different software development processes all over the organization and Looked into Kerberos security for Ansible Tower.
• Created and maintained various DevOps related tools for the team such as provisioning scripts, deployment tools and staged virtual environments using Docker.
• Experienced with deployment automation of all the microservices to pull the image from the private Docker Registry and deploy to Docker Swarm Cluster using Ansible.
• Created scripts in Python which integrated with Amazon API in SaaS environment to control instance operations. Implemented zero downtime deployment process in WebLogic using Python, Shell script & automated it using Jenkins.
• Used different Jenkins plugins like Global Build Stats plugin, job generator plugin to help developers create new jobs, Hudson Post build task Plugin to publish artifacts to repositories once the build is succeeded and to perform some other tasks depending on the output of the build, Amazon EC2 plugin to create slaves on EC2 servers etc.
• Implemented Maven Release Plug-in through Jenkins Jobs for deploying the artifacts to GIT repository .
• Initiated responsibility for administering the GIT servers which included install, upgrade, backup, adding, users, creating repository/branches, troubleshooting merging, tagging issues & maintenance.
• Configured JIRA as defect tracking system and configured various workflows, customizations, and plugins for the JIRA bug/issue tracker .
• Implemented & configured Data Dog for continuous monitoring of applications in the production environment & enabled notifications via emails & text messages.
• Worked on testing, evaluation & troubleshooting of MongoDB NoSQL database systems & cluster configurations to ensure high-availability in various crash scenarios.
• Configured Linux servers for clusters of Oracle Real Application and configured SAN-based mount points as well.
• Gained experience with Red Hat Linux kernel, memory upgrades, and swaps area. Installed RedHat Linux using Kickstart & Sun Solaris with JumpStart. Configured DNS , DHCP , NIS , NFS in Sun Solaris 8, 9 & other Network Services.

Environment: AWS, PCF, Ansible, Docker, Jenkins, Git, Nagios, JIRA, PowerShell, Java, .Net, Bash Scripting, Python, MongoDB, Maven, Nagios, Shell, Perl, JBoss Application Servers, Windows, WebSphere Application Server, Python, Linux, Solaris.

Confidential

Build and Release engineer

Role & Responsibilities:

• Involved in DevOps migration/automation processes for build and deploy systems. Used Bamboo and implemented CI/CD pipeline using plugins like conditional build step, deploy to Bitbucket.
• Administered Bamboo servers which includes install, upgrade, backup, adding users, creating plans, installing local/remote agent, adding capabilities, performance tuning, troubleshooting issues and maintenance.
• Created various modules and automation of various facts in Puppet , adding nodes to enterprise Puppet master and managing Puppet agents . Creating Puppet manifests files and implementing Puppet to convert Infrastructure as code.
• Involved in writing Puppet manifests and modules to automate the deployment process and to integrating Puppet manifests into Bamboo jobs for a continuous delivery(CD) framework and deployed Puppet , Puppet Dashboard and Puppet DB for configuration management to existing infrastructure.
• Participated in configuring and monitoring distributed and multiple platforms servers using Puppet Version . Used Puppet Server and Workstation to manage and configure nodes.
• Involved in setting up CI/CD using Bamboo with the Artifactory repository. Resolved update, merge & password authentication issues in Bamboo & JIRA.
• Installed and configured Bamboo server for CI to automate the release management for applications and created a continuous delivery pipeline.
• Managed and optimize the Continuous Integration using Bamboo and troubleshoot the deployment build issues using the trigged logs.
• Used Bitbucket version control to manage the source code and integrating with Bamboo to support build automation and integrated with JIRA to monitor the commits.
• Worked on Python to pull report from access report from Bitbucket through Rest API and configured through Bamboo.
• R esponsible to perform Build operations with ANT Scripts, while implementing the required modifications in the ANT Script to perform build operations, in accordance with requirements of the project.
• Wrote build.xml using the build tool like ANT for declaring the dependencies and managing the application framework.
• Integrated the Bitbucket by using Webhooks and Scripted Rest API in ServiceNow and stored the information in ServiceNow table.
• Created and maintained the Power Shell scripts and Perl scripts deployment scripts for Tomcat application servers.
• Installation and configuration of Tomcat for development and Testing Environments and Application performance monitoring (APM) by AppDynamics.
• Built, Configured and Maintained Apache web server , kickstart , NFS , Samba and DNS servers on Red Hat and CentOS.

Environment: Bamboo, Bitbucket, ANT, Puppet, Web Logic, Apache Server, Tomcat, Nexus, AppDynamics, Power Shell, Perl scripts, Red Hat, CentOS .

Confidential

Linux / System Analyst

Role and Responsibilities:

• Administered Red Hat Linux 5.x/6 servers for several functions including managing Apache Tomcat server, mail server, MySQL database and Firewall in both Development and Production.
• Responsible for package management like installing, updating and removing different packages using RPM and YUM to update specific packages.
• Installed and configured DHCP, DNS, TCP/IP, UDP, FTP, NFS server and clients, Assigning IP addresses to client hosts, and performed Troubleshooting.
• Worked on Linux Logical Volume (LVM), created volume groups, Logical volumes, file systems, and troubleshooting.
• Responsible for maintaining security on RedHat Linux and provided support to various Linux users.
• Experienced in monitoring system performance and check the status of the system using utilities such as SAR, VMSTAT, IOSTST, NETSAT etc .
• Worked on Updating and developing new scripts using Grep , AWK and regular expression as per the requirements.
• Configured all the authentication information needed at the time of operating system installation in Kickstart file.
• Responsible for Active directory , GPO , Domain users , Administrating users and groups and given appropriate permissions and privilege to access LAN and Domain environment including shared files.
• Migrated large amount of LDAP data across the environment to create identical production environment to support load testing.
• Worked on changing the application run time process using Python scripts for WebLogic configuration and shell scripts for database configuration.

Environment: RedHat Linux, Debian, CentOS, Ubuntu, Sun Solaris, AIX, NFS, DHCP, DNS, SAMBA, FTP, HTTP, TCP/IP, SSH, LVM, TCP/IP, LAMP, Nagios, Wireshark, VM Ware ESXi Servers.

Confidential

Jr. System Administrator

Roles & Responsibilities:

• Involved in design, configuration, installation, implementation, management, maintain and support for the Corporate Linux servers RHEL 4x, 5.x, SOLARIES 9, CENTOS 5.x.
• Installed and configured Linux virtual machines, standalone servers for various applications via kickstart.
• Creation of disk volumes, Volume groups and Logical volumes (LVM) for Linux operating systems. Installed and configured Apache/ Tomcat web server .
• Worked with DBA team for database performance issues, network related issues on Linux Servers.
• Developed Perl and shell scripts for automation of the build and release process. Developed automation scripting in Python to deploy some applications.
• Maintain and administer Active Directory Servers , including daily monitoring, troubleshooting and performance analysis and responsible for daily operational duties.
• Troubleshooting and administering High Availability using VERITAS Cluster Server on various business critical database & application production servers.
• Monitoring and troubleshooting Network like TCP/IP, NFS, DNS and SMTP in Linux servers and System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
• Authorized Solaris users/groups to access various applications and troubleshot various user problems using management tools.

Environment: Red Hat Linux (RHEL 4/5), RPM, YUM, Logical Volume Manager (LVM), Cent OS, Jumpstart server, kickstart, Red Hat Cluster Servers, Oracle, MySQL, DNS, NIS, NFS, Apache Tomcat.