SUMMARY:

• Overall 8 years of extensive experience in Automating, configuring and deploying instances on cloud environments and Data centers. Experience in the areas of DevOps, CI/CD Pipeline, Build and release management, AWS/Azure and Linux/Windows Administration .
• Involved in designing and deploying applications utilizing all the AWS stack Including EC2, Route53, S3, ELB, EBS, VPC, RDS, DynamoDB, SNS, SQS, IAM, KMS, Lambda, Kinesis and focusing on high - availability,fault tolerance and auto-scaling in AWS CloudFormation, deployment services DevOpsWorks and Cloud Formation and security practices IAM, Cloud Watch, Cloud Trail.
• Experience in creating and maintaining IAM roles, policies, Autoscaling groups and Load balancer for EC2 instances. Extensively worked on Amazon Redshift to analyse petabytes of data by running standard SQL quiries.
• Expert in configuring AWS Elastic Beanstalk to deploy applications, to perform application health checks, & autoscaling of application resources. Experienced in integrating AWS Lambda with AWSDynamoDB to automatically respond to events in DynamoDB streams.
• Extensive experience with AWS (Storage, Application Services, Deployment and Management) and managed servers on AWS platform instances using Puppet, Chef Configuration management.
• Manage configuration of Web App and Deploy to AWS cloud server through Ansible.
• Experienced in Azure IaaS, Provisioning VM's, Virtual Hard disks, Virtual Networks, Deploying Web Apps and Creating Web-Jobs, Azure Windows server, Microsoft SQL Server, Microsoft Visual Studio, Windows PowerShell, Cloud infrastructure.
• Strong knowledge of various Azure components like Virtual Network, Express Route, Traffic Manager, Load Balancer, Azure Active Directory, Azure AD DS and Azure DNS .
• Expertise in working with Docker to improve our Continuous Delivery (CD) framework to streamline releases. Worked on Docker container snapshots, attaching to a running container, removing images, managing directory structures and managing containers.
• Responsible for Installing and configuration of Dockers, setting up Change Management process and standardizing the policies for various applications.
• Developed Ansible scripts for an automated server provisioning and Docker images, reducing the time between provisioning and deployment from over 3 hours to less than 10 minutes.
• Building/Maintaining Docker container clusters managed by Kubernetes Linux, Bash, GIT, Docker, on Google Cloud Platform (GCP). Utilized Kubernetes and Docker for the runtime environment of the CI/CD system to build, test deploy.
• Managed Kubernetes charts using Helm and creating reproducible builds of the Kubernetes applications, managed Kubernetes manifest files and Managed releases of Helm packages .
• Developed Ansible scripts in YAML for an automated server provisioning and Docker images, reducing the time between provisioning and deployment.
• Experienced in writing Ansible playbooks to automate the given process and Ansible Tower as Configuration management tool, to automate repetitive tasks, quickly deploys critical applications.
• Production experience in large environments using configuration management tools like Chef, Ansible and Puppet supporting Chef Environment with 500+ servers and involved in developing manifests. Developed Chef Cookbooks to manage systems configuration.
• Expertise in de ve loping of Chef recipes through Knife command-line tool through Ruby scripts to create Chef co okbooks to mana ge s y ste ms conf ig u ra ti on on Chef Server to initiate Chef Nodes.
• Experienced in Branching, Merging, Tagging and maintaining the version across the environments using SCM tools like GIT and Bitbucket, Subversion (SVN) on Linux platforms.
• Used Ant/Maven for building Java/J2EE Applications and experience in converting build.xml into pom.xml to build the applications using MAVEN.
• Extensively worked on Jenkins by installing, configuring and maintaining for Continuous Integration(CI) and for End to End automation for all build and deployments on JAVA and J2EE based applications.
• Implemented CI and CD for application using Jenkins as CI tool for integrating different tools like Github, Maven, Junit, and Nexus Artifactory and used Ansible as configuration management tool for continuous deployment into testing, staging and Production Environment.
• Create Jenkinsfile in the root of a repository that contains a definition of Jenkins Pipeline to automatically manage and execute jobs based on repository branches.
• Experienced in branching, tagging and maintaining the version across the environments using SCM tools like GIT, Subversion (SVN) and TFS on Linux and windows platforms.
• Experience in using monitoring tools like Nagios and Splunk to improve application performance, helps to get the visibility & business context to meet business demands.
• Setup Nagios for monitoring the servers, and implemented SPARK communication tool chat BOT for triggering alerts.
• Developed a POC log management & auditing framework using Logstash, InfluxDB, Grafana and the PCF logs are streamed to Logstash and parsed for extracting audit data.
• Extensive experience in Maintaining scalable, redundant, and replicate data systems including, but not limited to, PostgreSQL, RDBMS, MySQL, and various NoSQL databases like Cassandra and MongoDB.
• Worked with Application Performance Monitoring (APM) tools like AppDynamics for monitoring JAVA, .NET and PHP applications along with NewRelic for monitoring performance like browser and for tracking issues in SQL statements.
• Hands-on experience in handling ANT and Maven, Ruby and Shell Scripts in automating build process.
• Experience with JIRA software development tool for bug tracking to give perfect product planning, release and report.
• Experience in Virtualization technologies VMWare, Virtual box, Vagrant for creating virtual machines and provisioning environments.
• Experience in Administration of Production, Development and Test environment's carrying Windows, Ubuntu (RHEL) Red Hat Linux and CentOS servers.
• Excellent understanding of Software Development Life Cycle in the Waterfall and Agile testing models and QA processes.
• Troubleshooting any part of the lifecycle services within the OpenStack including log files, message queues, database, compute hardware, and network connectivity.
• Day-Day application support on production and technical documentation for critical production issues, on-call pager support 24/7 environment.

TECHNICAL SKILLS:

Operating Systems: Linux, Ubuntu, Fedora, Windows, Server/NT/XP/Vista.

Languages: C, JAVA/J2EE, PHP, HTML.

Scripting Languages: Shell Script, ANT Script, Python Script, Ruby Script Power Shell

DevOps tools: Ansible Chef, Puppet, Docker, Vagrant., Packer

Cloud: AWS, Microsoft Azure, Open Stack, Google cloud.

Bug tracker & Testing: JIRA, Bugzilla, Junit, NUnit.

Project Management Tools: Atlassian Tools, Base Camp, MS Project, MS Share point.

SDLC: Agile, Scrum Methodologies, Waterfall.

Servers: JBOSS, Apache Tomcat, Oracle Web-logic, IBM Web-sphere, IIS.

Environment: Eclipse, MS Visual Studio, Rational Application Developer.

Build Tools: Ant, MS Build and Maven, gradle

CI Tools: Jenkins, Bamboo, AnthillPro.

SCM Tools: GIT Hub, Subversion, TFS, Perforce.

Database Systems: SQL, Oracle, PL/SQL, MS Access, DB2, Mongo DB, Cassandra.

Monitoring Tools: Nagios, Cloud Watch, Splunk, ELK.

PROFESSIONAL EXPERIENCE:

Confidential, Jacksonville, Florida

Sr. DevOps/Cloud Engineer

Responsibilities:

• Designed, Configured and Deployed Amazon Web Services (AWS) for a multiple of applications using the AWS stack (EC2, Route53, S3, RDS, Cloud Formation, Cloud Watch, SQS, IAM), focusing on high-availability, fault tolerance and auto-scaling.
• Implemented and maintained Ansible Configuration management spanning several environments in vRealize and the AWS cloud.
• Handled migration of on premises applications to cloud and created resources in cloud to enable this. Used all critical AWS tools, used ELBs and Auto-Scaling policies for scalability, elasticity and availability.
• Wrote Cloud Formation Templates (CFT) in JSON and YAML format to build the AWS services with the paradigm of Infrastructure as a Code.
• Configure ELK stack in conjunction with AWS and using LogStash to output data to AWS S3.
• Create automation and deployment templates for relational and NoSQL databases including MSSQL, MySQL, Cassandra and MongoDB in AWS.
• Created Python scripts to Automate AWS services which include web servers, ELB, Cloud front Distribution, Database, EC2 and Database security groups, S3 bucket and application configuration. This Script creates stacks, single servers or joins web servers to stacks.
• Utilized Amazon IAM to grant fine-grained access to AWS resources to users. Also, managed roles and permissions of users to AWS account through IAM.
• Leveraged "Azure Automation" and PowerShell, Chef and Ansible to automate processes in the Azure Cloud.
• Deployed Azure IaaS virtual machines (VMs) and Cloud services (PaaS role instances) into secure VNets and subnets.
• Involved in configuring Cloud platform such as Virtual Networks Multi-site, Cross-site, VMs, Azure AD, Load Balancers, Azure SQL, Cloud Services, etc.
• Established connection from Azure to On-premise datacenter using Azure Express Route for Single and Multi-subscription connectivity.
• Adding Compute nodes into OpenStack cloud platform. Responsible for supporting and maintaining Openstack in a production environment.
• Troubleshooting any part of the lifecycle services within the OpenStack including log files, message queues, database, compute hardware, and network connectivity.
• Design, deploy, and operate OpenStack and SDN based IaaS, PaaS, and SaaS service platform network in multiple datacenters.
• Experience with container based deployments using Docker, working with Docker images, Docker Hub and Docker-registries and Kubernetes.
• Developed procedures to unify streamline and automate applications development and deployment procedures with Linux container technology using Docker swarm and Docker compose.
• Clustering the Docker containers with the help of kuberneteis on the OpenShift platform.
• Experience with setting up Chef Infra, Bootstrapping nodes, creating and uploading recipes, node convergence in Chef SCM.
• Implemented a production ready, load balanced, highly available, fault tolerant, auto scaling Kubernetes AWS infrastructure and micro service container orchestration.
• Created Chef Cookbooks and wrote recipes in Ruby Script to install and configured Infrastructure across environments and automated the process using Python Script.
• Involved in Setting up Chef Workstation, boot strapping various enterprise nodes, setting up keys.
• Automated the cloud deployment using Chef, Python and AWS Cloud Formation Templates. Used Chef for unattended bootstrapping in AWS.
• Installed and Implemented Ansible configuration management system. Used Ansible to manage Web applications, Environments configuration Files, Users, Mount points and Packages.
• Maintained high availability clustered and standalone server environments and refined automation components with scripting and configuration management (Ansible) and experienced in writing Ansible scripts.
• Played a key role in converting 600+ existing Jenkins jobs into the new pipeline process.
• Build Jenkins jobs to create AWS infrastructure from GitHub repos containing Terraform code and administered/engineered Jenkins for managing weekly builds .
• Implemented GitHub Organization Pipeline job which will automatically manage repositories with a Jenkinsfile within them consisting of series of independent steps that are automated through Production.
• Experience in working on version control systems like Subversion and GIT and used Source code management client tools like Visual SVN, Tortoise SVN, Stash, Source Tree, GitBash, GitHub, Git GUI and other command line applications etc.
• Written Terraform Templates for AWS infrastructure as a code to build staging and production environments.
• Developed many Openshift/Kubernetes templates for various applications like Jenkins, Kafka, Cassandra, Memcache and Grafana.
• Integration with Splunk for API traffic monitoring and health checks.
• Involved in SDLC requirements gathering, analysis, design, development and testing of application, developed using AGILE/Scrum methodology.
• Created detailed documentation of complex build and release process for Demand ware, post release activities process, JIRA workflow and Release notes.

Environment: Redhat Linux 7.x, AWS, AZURE, Chef, Docker, Ansible, Jenkins, Terraform, Kubernetes, ANT, Maven, Ruby, Shell, Python, Load Balancers,Apache Tomcat 7.x, Virtualization, Configured plug-ins for Apache HTTP server 2.4, Nginx, LDAP, JDK1.7, XML, SVN, GitHub, Nagios, Splunk.

DevOps/AWS Engineer

Responsibilities:

• Responsible for day-to-day management of all Development, Test, Stage, and Production for various enterprise applications.
• Used OpsWorks in AWS to maintain Chef server by automatically patching, updating & backing up the server. Created encrypted EBS volumes to store data. To restore EBS volumes created snapshots & stored in S3.
• Troubleshooting and monitoring of various proprietary Acxiom and Third-party applications using Splunk and Cloud Watch in the Amazon Web Services (AWS) environment.
• Created tagging standards for proper identification and ownership of EC2 instances and other AWSresources.
• Performed AWS S3 buckets creation, policies and on the IAM role based polices and customizing the JSON template.
• Managed Amazon instances by taking AMIs and performing administration and monitoring of the Amazon instances like EC2 using Amazon CloudWatch and Nagios, Splunk.
• Experience in Automating, Configuring and deploying instances on AWS and Azure Cloud environments.
• Designed AWS Cloud Formation templates to create custom sized VPC, subnets, NAT to ensure successful deployment of Web applications and database templates.
• Managing AWS Infrastructure with automation and configuration management such as Chef.
• Responsible for setting up Chef Infra, Bootstrapping nodes, creating and uploading recipes, node convergence in Chef SCM.
• Written Chef Cookbook, recipes to automate installation of Middleware Infrastructure like Apache Tomcat, JDK and configuration tasks for new environments etc.
• Worked on AWS/One Cloud and provisioned the WebLogic Domain Provision and Web Server provision, JDK install, WebLogic 12c1 Install by writing Ansible playbooks.
• Used Ansible Tower for running playbooks stream in real-time and amazed to see the status of every running job without any further reloads.
• Virtualized the servers on AWS using the Docker, create the Docker files and version control to achieve Continuous Delivery goal on high scalable environment, used Docker coupled with load-balancing Nginx.
• Accomplished deployment automation, scaling and operations of application containers across cluster of hosts using Kubernetes and worked closely with the development teams and performance test engineers for EC2 optimization and Docker build containers.
• Used Docker to virtualize deployment containers and push the code to EC2 cloud using PCF. Built additional Docker Slave nodes for Jenkins using custom built Docker images and instances.
• Configured Continuous Integration (CI) and Continuous Deployment (CD) pipeline by setting up Build, test, & deploy automation Jobs in Jenkins using Conditional Build steps pipeline by integrating Jenkins, Maven, Artifactory, CodeHub and XL-Deploy.
• Scheduled the Linux Cron jobs and Jenkins jobs for build automation. Developed Perl and shell scripts for automation of the build and release process.
• Written cookbooks for WebLogic, JDK, and Jenkins, Tomcat, JBoss and deployment automation.
• Experienced in provisioning and optimizing of compute, network, and storage services with OpenStack through dashboard, command-line and API utilities.
• Setting up private networks and sub-networks using Virtual Private Cloud (VPC) and creating security groups to associate with the networks.
• Used MCollective, Facter, Hiera frameworks to amend the automation pipeline built around Puppet.
• Developed automation scripting in Python (core) using Puppet to deploy and manage Java applications across Linux servers.
• Created and updated Puppet manifests and modules, files, and packages stored in the GIT repository.
• Performed backup and administration activities for SVN/GIT branching, merging, tagging.
• Configured and Administered Nexus Repository Manager for GIT repositories and builds.
• Writing various puppet manifests files with Hiera and customized functions and defined resources
• Assisted developers with establishing and applying appropriate branching, labeling conventions using GIT source control.
• Maintained build related scripts developed in shell for Maven builds. Created and modified build configuration files including POM.xml.
• Good experience in converting build.xml into pom.xml in order to build the applications using MAVEN.
• Maintain build related scripts developed in ANT, Ruby,Shell and Python.
• Setup a Jumpstart/Flash and Kickstart servers for provisioning of servers with different profiles.
• Installation of Red Hat EL 4.x, 5.x using Kickstart and PXE on HP DL380 G3.

Environment: AWS, Chef, Puppet, Jenkins, Maven, ANT, Ruby, Shell, Python, WebLogic Server, Load Balancers, WLST, Apache Tomcat, Docker, Virtualization, Configured plug-ins for Apache HTTP server, Nginx, LDAP, JDK, XML, SVN, GitHub, Cloud watch, Splunk, Nagios.

DevOps/Cloud Engineer

Responsibilities:

• Performed the automation deployments using AWS by creating the IAM and used the code pipeline plugin to integrate Jenkins with AWS and also created the EC2 instances to provide the virtual servers.
• Used IAM to create new accounts, users, roles and groups.
• Configured Elastic Load Balancers with EC2 Auto scaling groups.
• Setting up databases in AWS using RDS, storage using S3 buckets and configuring instance backups to S3 bucket.
• Configured S3 versioning and life-cycle policies to and backup files and archive files in Glacier.
• Maintaining the user accounts (IAM), RDS, Route 53, SES and SNS services in AWS cloud.
• AWS Import/Export accelerates moving large amounts of data into and out of AWS using portable storage devices for transport.
• Designed an Architectural Diagram for different applications before migrating into amazon cloud for flexible,cost-effective, reliable, scalable, high-performance and secured.
• Create and Manage cloud watch configurations for Auto scaling (In & Out) launch configurations.
• Worked on creating Docker containers and Docker consoles for managing the application lifecycle and worked on setting up the automated build on DockerHUB.
• Created the Docker file and built various containers using Docker engine and Docker Machine environments.
• Automated the deployment of applications inside software containers and Configured Docker container for branching purposes.
• Built Chef Development workflow and best practices around configuration management as well as buildinga strong and diverse internal Chef community.
• Used Git for source code version control and integrated with Jenkins for CI/CD pipeline, code quality tracking and user management with build tools Maven and Gradle.
• Defined dependencies and plugins in Maven pom.xml for various activities and integrated Maven with GIT to manage and deploy project related tags.
• Coordinated in pushing the code to GitHub and automating process of release by pushing all the code to GitHub.
• Responsible for design and maintenance of the Subversion/GIT,Stash Repositories, views, and the access control strategies.
• Responsible for on boarding Application teams to build and deploy their code using GitHub, Jenkins, Nexus and Ansible.
• Experience modeling data in and deciding application paradigms using PostgreSQL and NoSQL.
• Designed and built a continuous integration and deployment framework for Chef Code using test driven development.
• Installation, configuration and administration of Linux (Redhat/SUSE, Centos)
• Configuring network services such as NFS/NIS/NTP for UNIX/Linux Servers.
• Experience in analyzing and monitor performance bottlenecks and key metrics in order to optimize softwareand system performance.
• Setting up UNIX/Linux environments for various applications.
• Creating a change requests, work orders and problem tickets using BMC Remedy tool and getting approvals from higher officials.
• Deployed VPC with VPN attachment to physical datacenter.
• Automated the front-ends platform into highly scalable, consistent, repeatable infrastructure using highdegree of automation using Chef, Vagrant, Jenkins, and cloud Formation.
• Automated the process of configuring property files and JDBC related settings on WebLogic server during deployment using WLST scripts.
• Debugging Chef Recipes and their execution trying to pull logs into Splunk and monitor deployments.
• Scripted Linux repository database comparisons using Python.
• Monitored developed applications using Zabbix as a monitoring tool and fixed issues related to load and performance testing for complex systems.
• Understanding of Software Development Life Cycle, Test Driven Development, Continuous Integration andContinuous Delivery.
• Written XMLs and used Ant scripts to deploy to Websphere and Weblogic environments.

Environment: AWS Cloud, Redhat Linux, AIX and Windows, BMC Remedy, Chef, Shell, Python, WebLogic Server 11g, IBM WebSphere MQ, Load Balancers, WLST, Apache Tomcat, Nginx,JDK, XML, Oracle, SVN, GitHub.

DevOps Engineer

Responsibilities:

• Responsible for Design of different Release Environments for new projects and monitoring.
• Involved in DevOps migration/automation processes for build and deploy systems.
• Implementing a Continuous Delivery framework using Bamboo, Chef, Maven and Nexus in Linux environment.
• Configured Project Server with Team Foundation Server (TFS) to synchronize task/work item tracking process
• Worked extensively with Nagios monitoring system as well as other monitoring tools.
• Experienced in installation of software tools in a DevOps Environment.
• Implemented and maintained automated tools which support DevOps processes.
• Deployed and troubleshoot of various Jenkins issues. Installed and uninstalled, upgraded and downgraded various plugins in Jenkins.
• Performed DevOps for Linux, Mac and windows platforms.
• Maintain and enhance current build procedures for all software development projects.
• Mange build and deployment using Maven, Jenkins, SCM tools.
• Configured Git with Jenkins and schedule jobs using Poll SCM option.
• Wrote, maintained, reviewed and documented modules, manifests, Hiera configurations and Git repositories for Puppet Enterprise on RHEL and Windows platforms.
• Created chained jobs with conditional behavior by adding conditional logic to Freestyle jobs from within the Jenkins web UI.
• Worked on Jenkins continuous integration server installation and configuration for all GIT Repositories.
• Worked in deploying applications to Oracle Weblogic, JBOSS, TOMCAT and IIS Servers.
• Managed MAVEN project dependencies by creating parent-child relationships between projects.
• Good understanding of building the Android Applications using the Maven and Jenkins.
• Jenkins is used as a continuous integration tool for automation of daily process.
• Responsible for designing and deploying best SCM processes and procedures.
• Troubleshoot and resolved Build failures due to infrastructure issues reduced by 95% stabilizing the Build process. Setup and executed process to code review system effectively.
• Responsible for defining branching & merging strategy, check-in policies, improving code quality, automated Gated Check-ins, defining backup and archival plans.
• Troubleshoot Build and Deployment Issues, with little downtime.
• Debugging Chef Recipes and their execution trying to pull logs into Splunk and monitor deployments.
• Documented release metrics, software configuration process. Used Maven scripts to build the source code. Supported and helped to create Dynamic Views and Snapshot views for end users.

Environment: Auto scaling groups, Bamboo, Chef, Maven, Nexus, Nagios, yum, rpm. Linux, Mac, Unix, Windows, Chef.

Build and Release Engineer

Responsibilities:

• Management of Customer Requirements and documentation of the Project Plan as per the requirements.
• Experienced in working with CVS environment and configuring the version tool for the project development.
• Installation and customization of rational tools like Clear Case and Clear Quest, support and maintenance of these tools.
• Managed daily builds and releases to QA. Debugged build failures and worked with developers and QA personnel to resolve related issues.
• Created and enforced Configuration Management policies and procedures, project configuration management, adhere to the Company policy, was successful in implementing it.
• Customized TFS 2010 Work Item Templates and Workflow of the Work Items.
• Involved in the product release activities, including Change Control Management, Release Management, Defect tracking using Clear Quest tool and Version Management using CVS tool.
• Developed and build and deployment standards with input from development, IT/operations, and IT security.
• Installed Jira and Confluence on Tomcat server.
• Evaluated build automation tools (Open Make and Anthill Pro), recommended Anthill Pro.
• Configured and deployed Anthill Pro in Solaris 10 environment with multiple zones/containers, using Oracle database and multiple CVS servers and repositories. Configured services using SMF and XML.
• Completing software builds and elevations, creating directories and security groups, and recreating prior versions. Monitored software, hardware, and/or middleware updates and utilizing technologies like Hudson, Ant and MS Build.
• Initiating other CM users for developing the product, regular communication with the team members and documenting their duties.
• Diagnosing and solving Configuration Management issues related to defect tracking and version management, also involved in migration within Version tools like CVS and Clear Case.
• Researched and implemented code coverage and unit test plug-ins with Maven/Hudson.
• Configured and maintained Hudson to implement the CI process and integrated the tool with Ant and Maven to schedule the builds.
• Deploying Java Enterprise applications to Apache Tomcat, Web Server, JBoss Application server.
• Script writing by using Shell (Korn& Bourne) and knowledge skills in ANT and Perl.
• Installation and configuration of CM related software in UNIX and Windows environments, using UNIX commands and Windows Navigation.
• Deployed the build artifacts into environments like QA, UAT & Production according to the build life cycle. Worked on Develops automated tools that produce repeatable, auditable software builds and deployments across all environments and a variety of platforms.
• Team activities other than work related, in the process of Initiation and encouragement were done.

Environment: Rational Clear Case, Rational Clear Quest, TFS, Hudson, Maven, Jira, UCM, SQL, J2EE, Shell, Perl, ANT, Anthill-Pro, UNIX, Windows NT/2000.

Linux Administrator

Responsibilities:

• Managed and administrated of all UNIX servers, includes Linux operating systems by applying relative patches and packages at regular maintenance periods using Red Hat Satellite server, YUM, RPM tools.
• Prepare specs for new infrastructure and VMware servers, disk storage, and network switches, routers, firewalls, and VPN.
• Planned and performed the upgrades to Linux (RHEL 5x, 6x, SUSE 10, 11, CENTOS 5, 6) operating systems and hardware maintenance like changing memory modules, replacing disk drives.
• Handling NFS, Auto Mount, DNS, LDAP related issues. Install and configure DHCP, DNS (BIND, MS), web (Apache, IIS), mail (SMTP, IMAP, POP3), and file servers on Linux servers.
• Monitoring CPU, memory, physical disk, Hardware and Software RAID, multipath, file systems, network using the tools NAGIOS 4.0 monitoring.
• Deployment and Configuration of application server Tomcat deploying Java and Web Application.
• Writing Shell scripts for automation of daily tasks, documenting the changes that happen in the environment and in each server, analyzing the error logs, analyzing the User logs, analyzing the /var/log/messages.
• Design, build, and maintain production servers and RAID storage system.
• Performing kernel and database configuration optimization such that it limits I/O resource utilization on disks.
• Diagnosed hardware and software problems and provided solution to them.
• Worked with DBAs on installation of RDBMS database, restoration and log generation.
• Identify, troubleshoot, and resolve problems with the OS build failures.

Environment: UNIX, RedHat Satellite Server, NFS, Auto Mount, DNS, Tomcat, NAGIOS4.0, Java, RDBMS.