PROFESSIONAL SUMMARY:

• Over 7 years of IT industry experience as System Administrator, DevOps, and Production Support of various applications on Red Hat Enterprise Linux, CentOS, Debian, Ubuntu and skilled with Windows Server 2008 - r2/2012-r2 on various hardware platforms and AWS cloud.
• Extensively worked on AWS Cloud platform and its features that include EC2, VPC, EBS, ELB, S3, RDS, EBS, Cloud Watch and In-depth understanding of the principles and best practices of Software Configuration Management (SCM) processes, which include compiling, packaging, deploying and Application configurations.
• Deployed and configured chef server including bootstrapping of chef client nodes for provisioning and created roles, recipes, cookbooks and uploaded them to Chef-server, Managed On-site OS, Applications, Services, Packages using Chef as well as AWS for EC2, S3, Route53 and ELB with Chef Cookbooks.
• Supported AWS Cloud environment with multiple AWS instances and configured Elastic IP & Elastic Storage and experience working on implemented security groups.
• Worked in various levels in the infrastructure team on Installation, configuration and administration on Redhat-Linux (5x, 6x& 7x), CentOS (5x, 6x and 7x), Ubuntu (7x, 8x, 9x & 10x), SUSE Linux (9x, 10x & 11x), AIX (V5.3 & 6.1), Redhat Satellite 6, and Windows Environment like Windows Server 2008-R2/2012-R-2.
• Experience in System Administration, Configuration, upgrading, Patches, Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX & LINUX Systems.
• Extensive knowledge of VMware vMotion, HA and DRS including vSphere update manager, VMware Data Recovery, vCenter Manager and vCenter Orchestrator.
• Good knowledge of implementing configuration management tools Puppet, Chef, Ansible and treating Infrastructure as Code.
• Successfully configured and maintained multiple Hyper-V servers with multiple platforms including Windows Server 2012 R2, Windows Server 2008 R2, and Windows 10.
• Experience worked with VMware ESXi 5.1, 5.5 & 6.0, Physical to Virtual migration, Managing SAN data stores with iSCSI, FC, NFS.
• Experience in Installing, configuring, upgrading and managing Puppet Enterprise and Puppet Open Source and experience in updating and creating modules and pushing them to puppet clients, Worked and utilized Puppet hierarchy files, facts, and global variables.
• Installed and managed Middleware tools through Puppet such as WebSphere Application Server 7.x/8.x, JBOSS GA7/EAP6, IBM IHS, Apache, Tomcat, Active MQ and other web-oriented applications as necessary.
• Experience with OpenStack Services such as Compute, Network, Storage, Dashboard. Worked on OpenStack application for deploying, maintaining and troubleshooting in a Cloud environment.
• Extensively worked on Jenkins, Hudson, Bamboo, BuildForge and AnthillPro (AHP) by installing, configuring and maintaining for continuous integration (CI) and for End-to-End automation for all build and deployments.
• Expertise in using build tools like MAVEN and ANT for the building of deployable Artifacts such as war and ear from Source Code using MoM - RabbitMQ, Kafka.
• Expertise on all aspects of Chef concepts like Chef server, Workstations, Nodes, Chef Clients and various components like Super Market, Test Kitchen, Food Critic.
• Experience working on several Docker components like Docker Engine, Hub, Machine, creating Docker images, Compose, Docker Registry and handling multiple images primarily for middleware installations and domain configurations.
• Experience in implementing a Continuous Delivery pipeline with Docker, Jenkins and GitHub, Nexus, Maven and AWS AMI's.
• Experienced in building and maintaining Docker and Vagrant infrastructure in agile environment.
• Experience in working on version control systems like Subversion, and GIT and used Source control management client tools like Visual SVN, Tortoise SVN, SVN X, Uber SVN, Stash, Source Tree, GIT Bash, GitHub, GIT GUI and other command line applications etc.
• Expert knowledge in Technical and Functional features of TFS which includes Source Control, Work Items, TFS Builds, Reporting, SharePoint, Administered and performed maintenance on TFS 2010/2012/2013/2015.
• Provide SME in all areas of Cloud (IaaS, PaaS, SaaS) to existing and perspective clients on multiple cloud platforms vSphere, vCloud, CloudStack, Azure, AWS and various PaaS platforms such as Cloud Foundry, OpenShift.
• Managed all the bugs and changes into a production environment using the Jira, Remedy, HP Quality Center and IBM ClearQuest tracking tools.
• Expertise in scripting for automation, and monitoring using Shell, PHP, Python & Perl scripts.
• Experience NIC bonding/NIC Teaming configuration in Linux/UNIX/Windows/VMware systems to increase the bandwidth or redundancy based on requirement by the application.
• Experience in installation and management of network related services like DNS, Apache, LDAP, SAMBA, HTTPD, NTP, VSFTP, PROFTP, SMTP, SQUID, Active Directory, Postfix, Send mail, FTP, Remote Access, Security Management & Security troubleshooting skills.
• Efficiency in Installing, configuring and implementing the LVM, RAID Technologies using various tools like VERITAS volume manager, Solaris volume manager.
• Network trouble-shooting skills with general understanding of CISCO switches, PIX Firewall and Routers.
• Experience administering and configuring NoSQL Databases like Cassandra, MongoDB and RDBMS like MySQL, DB2, etc.
• Expertise in Shell Scripting and Perl Scripting for Environment Builds and Automating Deployment on WebSphere Application Servers and WebLogic Application Servers.
• Expertise in troubleshooting, back and recovery and experience supporting 24x7 productions computing environments and providing on call and weekend support.

TECHNICAL SKILLS:

Operating Systems: RHEL/CentOS 5.x/6.x/7.x, Ubuntu/Debian/Fedora, AIX, Sun Solaris 7/8/9/10, Windows Server 2003/2008/2012/ Vista

Automation/Build Tools: Puppet, Chef, Ansible, Ant, Maven, Jenkins, Hudson & Bamboo

Languages: Shell, Bash, Perl, Ruby and Python scripting

Databases: MySQL, MongoDB, Cassandra, PostgreSQL, SQL Server, CouchDB

Web/App Server: Apache, IIS, HIS, Tomcat, WebSphere Application Server, JBoss

Bug Tracking Tools: JIRA, Fisheye, Crucible, Rally, Remedy and IBM Clear Quest, Bugzilla, HP Quality Center.

Version Control Tools: Subversion, GIT, Tortoise SVN, Visual SVN

Web Technologies/Programing Languages: Servlets, JDBC, JSP, .net, XML, HTML, Java Script, Java/J2EE, C, C++, Ruby, Perl scripting, Python, Shell scripting.

WORK EXPERIENCE:

Confidential, Minneapolis, MN

Linux Admin/ Cloud Engineer/ DevOps Engineer

Responsibilities:

• Administration of Red Hat Enterprise Linux 6.x/7.x and CentOS includes installation, testing, tuning, upgrading, patching and troubleshooting day-to-day issues.
• Migrated on premise database to AWS Cloud and designed, built, and deployed a multitude of applications utilizing the AWS stack (Including EC2, R53, S3, RDS, SNS, and IAM), by focusing on high-availability, fault tolerance, and auto-scaling with opscode chef cookbooks and recipes.
• Defined AWS Security Groups, which acted as virtual firewalls that controlled the traffic allowed to reach one or more AWS EC2 instances. Worked on Multiple AWS instances, set the security groups, Elastic Load Balance r and AMIs, auto scaling to design cost effective, fault tolerant and highly available systems.
• Deployed Different kinds of AWS storage gateways for moving the on-prem data to AWS and utilize various services like S3, Glaciers, EBS volumes.
• Using Amazon Web Services (AWS) console and AWS CLI to launch and manage VM's with Public/Private subnet and setup load balancing, security groups etc. Created Cloud Formation templates and deployed AWS resources like EC2, Auto scaling, EBS, S3.
• Installed, configured and managed the Ansible Configuration Management Tool and manage the configurations of multiple servers using Ansible.
• Used Ansible / Ansible Tower as Configuration management, to automate repetitive tasks, quickly deploy critical applications, and proactively manages change and wrote Python Code using Ansible Python API to Automate Cloud Deployment Process.
• Implemented Continuous Integration by integrating with different tools like Maven, GIT, Sonarqube, Nexus with Jenkins. Involved in Installing Jenkins on Linux environment and implemented master - slave configurations to run multiple build operations in parallel.
• Worked with Docker Management platform, leveraged Custom Docker Images as Containerized Apps with in the Docker Engine as Multi Stack Application like LAMP.
• Day to day activities like building and deploying code in different environments like DEV, SIT, UTA, Pre-Prod and Prod using Jenkins, Docker, Kubernetes and ARM, CHEF and Ansible.
• Automated deployments, scaling, and operations of application containers across clusters of hosts, provided container-centric infrastructure by Kubernetes.
• Used Docker for packaging applications and designed the entire cycle of application development and used Virtualized Platforms for Deployment of containerization of multiple apps. Deployed Docker Engines in Virtualized platforms for containerization of multiple apps.
• Deployed J2EE applications to WebSphere Application Server in an agile continuous integration environment and automated the process with scripts using Ant and Maven build tools in Jenkins, Sonar to move from one environment to other environments.
• Utilized Jenkins for enterprise scale infrastructure configuration and application deployments - checking out code from Svn/Git and use Ant/Maven to build War/Ear artifacts.
• Developed terraform scripts to build, change and version infrastructure as code using AWS as provider and launch multi-tiered stack to be provisioned and configured with terraform scripts.
• Creating from scratch a new continuous integration stack for a web application based on Docker and Jenkins, allowing transition from dev stations to test servers easily and seamlessly. Deployed Jenkins for CI/CD, creating jobs with DSL plugin and automate the jobs using polling techniques.
• Involved in continuous integration and continuous deployment system with Jenkins on Google's Kubernetes container environment, utilizing Kubernetes and Docker for the runtime environment for the system to build and test and deploy.
• Involved in configuration of EMX XtremIO and provisioned storage to ESX and RHEL servers using XtremIO storage Management Application.
• Worked on web servers like Apache and application servers like Web logic, Tomcat, WebSphere, JBOSS to deploy code and Integrate with (CI) for End-to-End automation for all build and deployments.
• Installed and set up Nagios monitoring system on a dedicated Amazon EC2 server, developed several custom plugins for monitoring availability and performance of AWS EC2 instances, integrating Pingdom checks, monitoring MySQL databases and results of execution of certain queries, etc.
• Managed and installed Monitoring Tools like Nagios, Cloud Watch, Splunk to monitor the logfiles, Network Monitoring, Log trace monitoring and the hard drive status.
• Working Knowledge of Cisco UCS (Unified Computing System), created a Service Profile on UCS Blade and used it to Kickstart the Server. Actively participated and supported in the migration of production servers from old data center to New Data Center.
• Involved in data center migration - planning, designing, moving servers to new data center, Coordinating & troubleshooting issues with various data center, network, and application and storage teams.
• Administration of the whole NetBackup environment that included policy creation, install and configure NetBackup agent, troubleshoot failed backups on daily basis and make sure they succeed.
• Installation, Configuration and implementation of net back-up software on client servers Installation of NetBackup on master and media servers for 7.1, 7.6 environments.
• Effective Use of RPM and YUM utilities to install third party packages and patches from Patching Server and Red Hat Satellite Server. Established Satellite 6.1 with Puppet for internal RedHat Linux (5,6,7) patching as well as perform remote group administration of 100+ RedHat Linux hosts.

Confidential, Minnetonka, MN

Linux Admin/ DevOps Engineer / Cloud Engineer

Responsibilities:

• Build servers using AWS, importing volumes, launching EC2, RDS, creating security groups, auto-scaling, load balancers (ELBs) in the defined virtual private connection.
• Used AWS Beanstalk for deploying and scaling web applications and services developed with Java, PHP, Node.js, Python, Ruby, and Docker on familiar servers such as Apache, and IIS .
• Performed Elastic Load Balancing to distribute incoming traffic across multiple EC2 instances (Creating load balance, HTTPS Load Balancers, Monitoring etc.). Worked in automation deployments using AWS by creating the IAM roles and policies and used the code pipeline plugin to integrate Jenkins with AWS and created the EC2 instances to provide the virtual servers .
• Migrated the current Linux environment to AWS / RHEL Linux environment and used auto scaling feature and Involved in Remediation and patching of Unix/Linux Servers. Optimized volumes and EC2 instances, and created multiple AZ VPC instances.
• Created and configured the continuous delivery pipelines for deploying micro services and lambda functions using Jenkins CI server. Installed and administered Artifactory repository to deploy the artifacts generated by Maven and to store the dependent jar used during the build.
• Deliver Docker container deployment mechanism to decrease cost of teams building their own continuous delivery pipeline.
• Coordinate/assist developers with establishing and applying appropriate branching, labeling/naming conventions using Subversion (SVN) and Git source control.
• Administered and Engineered Jenkins for managing weekly Build, Test and Deploy chain, SVN/GIT with Dev/Test/Prod Branching Model for weekly releases. Analyzed the builds using the SonarQube and automated the test using the selenium.
• Deployed and configured GIT repositories with branching, forks, tagging, merge requests, and notifications. Converted and automated builds using Maven and Ant. Scheduled automated nightly builds using Jenkins.
• Written Chef Cookbooks for various DB configurations to modularize and optimize end product configuration, converting production support scripts to Chef Recipes and AWS server provisioning using Chef Recipes .
• Installed Chef-Server Enterprise On-Premise, WorkStation, Bootstrapped the Nodes using Knife. Planned and performed the upgrades on Linux and operating systems.
• Established Chef Best practices approaches to system deployment with tools with vagrant and managing Chef Cookbook as a unit of software deployment and independently version controlled.
• Worked closely with developers to define and configure application servers, virtual hosts, web applications, web resources, back-end resources as well as deployment of EJBs across multiple instances of WebSphere.
• Deployed applications (Web-Based) on multiple WebLogic Servers and maintained Load balancing, high availability and Fail over functionality ( disaster recovery ).
• Wrote Ansible Playbooks with PythonSSH as the Wrapper to Manage Configurations of AWS Nodes and Test Playbooks on AWS instances using Python. Run Ansible Scripts to provision Dev servers.
• Used Ansible Tower, which provides an easy-to-use dashboard and role based access control, so that it's easier to allow individual teams access to use Ansible for their deployments.
• Worked on daily monitoring tools include Zabbix, Appdynamics, Cloudwatch, Newrelics, Alien-Vault SIEM implementation etc.
• Extracted the data from MySQL, Oracle, SQL Server using Sqoop and loaded data into Cassandra . And also provided highly durable and available data by using S3 data store, versioning, lifecycle policies, and created AMIs for mission critical production servers for backup.
• Involved in the design, configuration, deployment and operational maintenance of Active Directory and Name services to ensure secure and reliable network access to internal resources. Worked on providing privileged access to users over 40,000 servers.
• Utilize third party tool QAS to display Active Directory information and generate software deployment plans using the minimum resources.
• Planning, implementation and testing of new Data Center for Disaster Recovery migrations.
• Worked on providing privilege and session management and role based access controls for servers. Maintained, administered root password vaulting.
• Worked on installation and management of network related services like DNS, LDAP, SAMBA, HTTPD, NTP, VSFTP, PROFTP, SMTP, SQUID, Active Directory, Postfix, Send mail, FTP, Remote Access, Security Management & Security troubleshooting skills.
• Involved in an Agile/ Scrum environment and daily standup meetings. Work with development, testing, deployment, systems/infrastructure and project teams to ensure continuous operation of build and test systems.

Confidential, EAGAN, MN

Linux Admin/ VMWARE Admin / DevOps Engineer

Responsibilities:

• Developed Cloud Formation scripts and utilized Cloud Formation Templates to automate launch of EC2 instances and deploying AWS resources using those templates.
• Involved in analyzing and implementing OS patches and hot fixes as well as other OS configurations and updates as well as Antivirus management . Updating vSphere hosts using update manager, Troubleshooting Windows Installer (MSI).
• Implemented large scale vSphere Infrastructure with 700+ ESXi 5.0 hosts and 4 VCenters in linked mode on Cisco UCS, HP C7000 Servers hardware with EMC VNX/VMAX storage and Cisco5k Switches with 10GB Network connectivity to support 3,000+ VMs.
• Advanced Performance Analysis and Troubleshooting across all layers of the Virtual infrastructure leveraging VMware VCenter Operations Manager and VMware Log Insigh.
• Implementation and Management of EMC VNX block based storage for the vSphere Infrastructure.
• Involved in Patching Team that is responsible for updating/upgrading Windows OS with latest patches using Bigfix Tool. Installing and upgrading Service Packs on Windows Server 2008 and Windows Server 2012
• Developed build and deployment scripts using ANT and MAVEN as build tools in Jenkins to move from one environment to other environments.
• Configuration and Management of vSphere High Availability, vMotion, vMotion, VAAI, Host Profiles, Network & Storage IO Control, VMFS, Storage Profiles, Resource Utilization, Contention Management and Advanced Performance troubleshooting.
• Wrote Maven Scripts for automating end-to-end build process and wrote Shell scripts for deployments and configuration of WebLogic server for all J2EE applications. Used Chef to automate the deployment workflow of JAVA applications on Apache Tomcat and Oracle Web logic servers.
• Designed, wrote and built deployment using Ant / Shell scripting and automate overall process using Subversion and Anthill pro.
• Configuring several Clouds in Jenkins administrator using several OpenStack instances and deploying build management using SVN and ClearCase. Configured workflows, writing jobs in Anthill Pro for performing automated builds and deployments.
• Worked in designing and implementing continuous integration system using Jenkins by creating Python and Perl scripts.
• Involving in installing chef node, workstation and server, maintained automated environment using Chef Recipes and cookbooks. Implemented Chef best-practices and introduced Berkshelf and Test kitchen to facilitate a more natural cookbook development work flow.
• Configuration of Continuous, Rolling, Scheduled, Gated Automated Builds with TFS 2012 Build Automation.
• Implemented a continuous Delivery Pipeline with Docker, Jenkins and GitHub. Whenever a new GitHub branches are created Jenkins automatically attempts to build a new Docker container from it.
• Managed Version Control Subversion (SVN) and GIT Hub Enterprise and Automated current build process with Jenkins with proposed Branching strategies to accommodate code in various testing cycles.
• Terraform template to create Load balancers, EC2 instance with auto scaling and monitoring on the fly for different environments. Creating an AWS RDS MySQL DB cluster and connected to the database through an Amazon RDS MySQL DB Instance using the Amazon RDS Console .
• Monitored the different Autosys Server Instances and escalated the critical Job failures to the respective department and analyzed the reasons for the job failure prepared the detail summary and reported the cause of failure.
• Creating Autosys Calendars and migrating those calendars from one environment to another environment.
• Involved in setting up JIRA as defect tracking system and configured various workflows, customizations and plugins for the JIRA bug/issue tracker.
• Integrated Splunk with Active directory and LDAP authentication and Performed Splunk administration tasks such as installing, configuring, monitoring and tuning.
• Migrated the VMware Virtual machines in to Openstack cloud environment and Design, Install, configure, and test Openstack environment (Nova, Swift, Cinder, Neutron, Horizon, Keystone & Glance).
• Configure and deploy several hypdervisors and VMs running OpenStack for testing and production environments.
• Troubleshooting Networking issues poor routing, network conestion, NIC duplex and speed incompatibilities using ethtool, ifconfig, tcpdump, netstat, ping, telnet etc.

Confidential, JERSEY CITY, NJ

Unix/Linux Admin / DevOps Engineer

Responsibilities:

• Worked with configuration management and automation tools such as Puppet, Ansible or custom-built, designing cloud-hosted solutions, specific AWS product suite for managing Amazon Web Services (AWS) infrastructure .
• Managed and provided support for UNIX infrastructure, including server build, upgrade, migration, patching, restore, troubleshooting for issues with OS, storage, network, and performance, running RHEL / Solaris / AIX and supporting application and middleware upgrades.
• Worked on VMware ESXi 5.1, 5.5 and 6.0, migration from Physical to Virtual machines and Managing SAN Data stores with iSCSI, NFS . Involved in Migration of VMware to AWS using VMDK Import tools.
• Managed, administered and maintained a multi-site, multi-domain Windows Server 2008 R2 Active Directory environment and Microsoft Exchange 2010 messaging environment with over 11,000 users and 4000 computers.
• Involved in Data center migration more than 250 ESX servers and large number of the windows physical servers and P2V and V2V conversions for Windows and Linux Environments using VMware/VCenter Converter.
• Build servers using AWS, importing volumes, launching EC2, RDS, creating security groups, auto-scaling, load balancers (ELBs) in the defined virtual private connection
• Leveraged AWS cloud services such as EC2, auto-scaling and VPC to build secure, highly scalable and flexible systems that handled expected and unexpected load bursts
• Design AWS Cloud Formation templates to create custom sized VPC, subnets, NAT to ensure successful deployment of Web applications and database templates.
• Worked on Puppet extensively for deployment for servers, creating on custom scripts and managing changes through Puppet master server on its clients.
• Assembled Puppet Master, Agent, and Database servers on multiple Red Hat Enterprise Linux Platforms. Created profiles in Puppet and pushed them across all the servers in UNIX and Linux environment.
• Used Puppet Master to keep in sync configuration on hosts running agents. Managed user level administration, configuration files on all servers from centralized Puppet master server
• Worked with vMotion / Site Recovery Manager, Replication Manager vRealize Automation Center and Fiber SAN for hosting VMWARE vSphere HOSTS in a HA / DRS Environment. Working on OpenStack workload servers for scalable, high performance Linux OS for virtual machines with Red Hat OpenStack.
• Managed Servers and Reports using Foreman and Puppet through host groups and puppet modules and manifests.
• Deployed Puppet, Puppet Dashboard, and PuppetDB for configuration management to existing infrastructure. Used Puppet for automation and scheduling automated jobs.
• Installed, Configured, Managed Puppet Master / Agent . Wrote custom Modules and Manifests . Upgradation or Migration of Puppet Community and Enterprise .
• Downloaded Puppet-Forge modules, modified them and adapted the manifests to suit infrastructure and environment. Managed, admintrated Puppet nodes using mcollective . Wrote Puppet manifests on conditional expression based on agent specific data, which is available through Facter.
• Defined site-specific and global variables using Puppet Hiera (YAML and JSON) for creating re-usable modules, Troubleshooting Puppet errors and inspecting configuration settings in Puppet.
• Automate Deployment using configuration Management tool like Puppet to provision Amazon AWS Instances to enable continuous Deployments. Developed automation scripting in Python (core) using Puppet to deploy and manage Java applications across Linux servers.
• Deploy and monitor scalable infrastructure on Amazon web services (AWS) & configuration management using puppet .
• Provide support for artifact management using puppet. Used nexus yum plugin to provide yum integration from repository server. Automate the current manual build process to automatic build process using Jenkins CI and its plugins.
• Worked on migration of consumer data from one production server to another production server over the network with the help of Bash and Perl scripting.
• Installed and configured CA Site minder for Apache web Server to enable SSO (single sign-on) in various applications for different environments.
• Monitored availability and performance of production and development environments (servers, databases, network and Web services) using customized Nagios monitoring system, MRTG and other monitoring tools.
• Installed and configured monitoring tools Nagios for monitoring the network bandwidth and the hard drives status .
• Installed VERITAS Volume Manager. VCS cluster Server for fail-over and for mirroring and RAID level configuration on EMC storage frames. Applied the Clustering Topology that meets High Availability and Failover requirement for performance and functionality.
• Designed the Mongo DB database for the financial system using the concepts of indexing and Sharding and worked on creating various types of indexes on different collections to get good performance in Mongo database.
• Installation, configuration and management of network related services like DNS, Apache, LDAP, SAMBA, HTTPD, NIS, NFS, SMTP, Active Directory, Sendmail, FTP, Remote Access, Security Management & Security troubleshooting on RHEL/Debian Servers.
• Responsible of the ServiceNow tool administration module and creation of new Groups, IT Services, Application, Business Services, Routing rules and Blackout Freeze rules.

Confidential, Minneapolis, MN

Systems Engineer

Responsibilities:

• Installing and managing Redhat Linux enterprise servers as like existing versions 5.x, 6.x versions and Designed and implemented an automated system installation and configuration system, based on Linux Kickstart builds for common server configurations
• Upgraded RedHat linux and Ubuntu on HP/Dell Servers and workstations . Added necessary patches using patchadd utility and scripts . Creating the filesystems using redhat volume manager and performing the health check on regular basis for all Linux serves. Designed, built, and used PowerShell scripts for Active Directory (AD)
• Involved in analyzing and implementing OS patches and hot fixes as well as other OS configurations and updates as well as Antivirus management. Updating vSphere hosts using update manager, Troubleshooting Windows Installer (MSI)
• Configured and maintained new VMs and Installed Microsoft Windows 2012/2008/2003 OS, updated configuration management database (CMDB), installed the VMware Tools and other tools like Symantec, Nimsoft on them.
• Assisted in configuring the application servers with other components such as database, web servers, LDAP directory, Active Directory, BEA web logic etc. and working experience on the installation, configuration and provisioning of VNX, VMAX, VBLOCK, Centera, DMX4, CX4-960, Vplex, RecoverPoint, XtremIO and NS series, HDS and IBM.
• Performance Tuning and Management for Linux/AIX server and working with the application / database team to resolve issues. Migration of Redhat Linux servers from 4.x version and working with the application team to resolve the issues post migration.
• Successfully configured and maintained multiple Hyper-V servers with multiple platforms including Windows Server 2012 R2, Windows Server 2008 R2, and Windows 10.
• Creating the filesystem and RAW logical volumes for the Oracle RAC based on the requirement and upgraded the kernel in all the Redhat Linux servers and creating initrd image to boot from the Upgraded kernel.
• Provided day-to-day system administration and technical support for Windows 2003 and 2008 Servers. Worked SQL clusters on Windows 2008/2012 administration.
• Being a system administrator, responsible for maintenance of WebLogic Application Servers, iPlanetWeb servers, and ORACLE Database Servers.
• Worked on hard disk mirroring and stripe with parity using RAID controllers on RedHat and Solaris servers. Resolved configuration issues and problems related to OS, NFS mounts, LDAP user ids DNS and issues.
• Creating, cloning virtual machines on VMware 3.5, 4.0, installed ESX hosts, performance monitoring of virtual machines, taking vmware snap-shots, recovery, creating Vswitches and applying security patches to the ESXi servers
• Worked with VMWare tools like vCenter & vSphere to manage VM’s running on ESX cluster nodes and experience working vMotion. Creating and cloning virtual machines in VMware environment using Virtual Infrastructure client 3.5 and VSphere 4.0. Storage / Servers daily checks, performance tuning, performance monitoring and health checks.
• Extensive use of Logical Volume Manager (LVM), creating volume groups, logical volumes and disk mirroring in HP-UX and Linux.
• Installed/Configured redhat Linux cluster 5x version & Configuring the cluster resources and Adding storage to the cluster disks and increasing/decreasing the filesystem in RHEL .
• Working on SAN storage on ESXI servers and assigning the LUNs to the Virtual Machines running on the ESXi server. Consolidation of the Datacenters using Vcenter4.0 and installation, configuration and managing the ESXi 4.0 Update to Servers and Vcenter .
• Installation, Configuration, Administration of WebLogic, Apache Tomcat and deploying applications to integrated Dev environment. Worked on JBOSS clustering, set up new configurations for JDBC providers, Data Sources, connection pools, connection factory settings, virtual hosts etc.
• Extensively worked with the LAN/WAN, firewalls and routing for Internet and Intranet connectivity using different protocols like TCP/IP, DHCP, HTTP/s, FTP, SMTP and SSH.
• Performed Vup 5.0, Sybase 11.5.1, Perl Scripting, NIS, NFS, LDAP server, Weblogic, Apache Tomcat, EMC Storage SAN . Comfortable in working in a Data center environment - swapping of disks, attaching/detaching storage, increasing utilization.

Confidential

Linux/Unix Administrator

Responsibilities:

• System administration support involving server build, installation, configuration and implementation on Linux flavors and Solaris/AIX servers. Worked on Disk Partition, mirroring root disk drive, configuring device groups in UNIX/LINUX environment.
• Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, network using the tools NAGIOS and BMC Tools .
• Installation of Web logic, upgraded to service pack updates, installed BEA patches, configuring and creation new domain & services starting & stopping.
• Worked on planning and implementing system Backup and Recovery procedures using Ufsdump, Ufsrestore, tar and cpio. Created UNIX bash scripts to automatically provision profile permissions, directories, and chroot settings per profile or user role.
• Setup of full networking services and protocols on UNIX, including NIS, NFS, DNS, SSH, DHCP, NIDS, FTP, TCP/IP, ARP, Applications and print servers to insure optimal networking and printing functionality.
• Developed Cron jobs and Shell Scripts for automating administration tasks like file system management, process management, backup and restore.
• Installation, administration of VIO Server and VIO client LPAR’s, Upgrading VIO Servers and AIX Servers, Upgrading AIX TL from AIX 5.3 TL8 to AIX 5.3 TL9 and from 5.4 to 6.1.
• Used Jumpstart for Solaris and Kickstart for RedHat for Automatic provision of OS. Monitoring day-to-day administration and maintenance operations of the company network and systems working on Linux and Solaris Systems.
• Server Virtualization using VMware for Red hat Linux also worked on FTP servers for sending and receiving files between local and remote servers.
• Set up and configure small private and corporate network operation systems and infrastructure including servers, routing, switching, DHCP, and DNS. Maintain alerting system regarding network concerns and outages.
• Installed and configured the RPM packages using the YUM Software manager, JBOSS, Apache, Tomcat, and WebSphere. Configured logical volumes using logical volume manager (LVM) and configured mirroring.
• Developed multiple shell scripts (KSH, Bash, AWK) for system monitoring, regular and periodic jobs and for sysadmin jobs. Experience in installing and configuring Splunk tool 3.x and 4.x versions on Linux machines.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP, wrappers, NMAP . Responsible for Basic Router Configuration and network equipment (Cisco, Linksys, Net gear, DLink, Brocade Switches.
• Deploying Veritas Clusters and Oracle test databases to implement disaster recovery strategies, ensuring uninterrupted availability of the global systems.
• Configured Logical Storage Manager (LSM ) for root disk encapsulation and implemented root disk mirroring for fault tolerance. Setting up NIS/NFS on RedHat servers, setting up JBOSS cluster and oracle 10g cluster, configuring load-balancing on apache .
• Performed FTP, SFTP, VSFTP installation, SSHtectia upgrade and SSH key password less configuration, OS upgrade, Kernel upgrade, SAN stack upgrade, Vulnerability Threat Management patching.
• Monitoring the ticket queue all the time, working on the tickets and resolving them within the time frame. Repaired bad spots on the disk using and analyze. Used format and fdisk / parted for disk configuration and disk crash recovery.