SUMMARY

• Around 9+ experience as Linux/UNIX system administrator on Red Hat EL 5.x, 6.x, 7.x, 8, Centos 5, 6, 7, 8, Solaris 8, 9, 10, 11, VMware ESXienvironment 7.0/6.7/6.5/6.0/5.5/5.1/5.0/4. x, expertise in automation using Ansible/Shell/Jenkins and managing Azure and AWS workloads.
• Hands on work on utilizing VMware/KVM for installing the RHEL OS on VMs and HP/ CISCO/IBM/Dell hardware running on ESXi.
• Expertise with RHEL provisioning, upgrades, patching, configuring and performance tuning in virtualized environments.
• Installed, configured, and troubleshot various web and application servers like JBoss, Tomcat, and WebLogic.
• Having extensive experience in cloud strategy, technical assessment, solution design, migration, infrastructure setup, network, storage and virtualization, implementation, and support.
• Strong knowledge of large - scale Linux deployment methodologies, kernel configuration, performance monitoring, and tuning.
• Resolving system Hardware and software errors and crashes, huge file sizes, file system full errors.
• Managed packages using RPM/YUM on Red hatLinuxand maintaining patching on Solaris servers.
• Experience in installing, configuring, supporting, and troubleshooting Unix/Linux Networking services and protocols like NIS, LDAP, DNS, NFS, DHCP, FTP, SSH and SAMBA.
• Expertise in Installation, Configuration and file system management through VERITAS Volume Manager, VERITAS File System, Solstice Disk Suite and Logical volume Manager (LVM) with multiple RAID Levels.
• Problem determination and troubleshooting, Security using SSH.Installed and configured the Samba Server and Apache Web Server.
• Networking communication skills and protocols such as TCP/IP, Telnet, ftp, SSH, rlogin.
• Worked on (AWS) infrastructure with automation and configuration management tools such as Puppet and all Amazon web services like etc. EC2, EBS, IAM, S3, ELB, RDS, VPC, Route 53, Cloud Watch.
• Used Cloud Front to deliver content from edge locations to users allowing for further reduction of load on front-end serve.
• Experience in designing cloud architecture, PoC, Cost Estimation, implementation of AWS cloud infrastructure.
• Experience in System Administration, System Builds, Server builds, Installs, Upgrades, Patches, Migration, Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX Red Hat Linux Systems.
• Extensively worked with VMware ESXi 5.1/5.5/6.x/7, vCenter Server, Host Clustering with HA, DRS, Replication Manager, Site Recovery Manager, vMotion, Physical to Virtual Migration and Managing SAN Datastores with, iSCSI, NFS & FC.
• Created and maintained user accounts, profiles, security, rights, disk space and process monitoring.
• Worked on version controls like GIT and SVN. Worked on Agile Methodologies.
• Have good hands on experience on some of the monitoring tools like Nagios, Splunk and Zabbix.
• Extensive experience in configuring Global File SystemGFSand Zeta byte File SystemZFS.
• Extensively written bash script for various tasks automation using ansible playbooks.
• Have good hands-on experience working on Cloud platforms like VMWARE vCaC and Amazon Web Services.
• Proficiently skilled over Years with Infrastructure Administration in LINUX (RHEL/CENTOS 5/6/7/8, Ubuntu), Windows Server 2008 R2/2012 R2, AWS and Tools that are used for Automation in CI/CD (Continuous Integration & Deployment/Delivery) Pipeline under DevOps Culture.
• Proficient in Red Hat High availability (HA) and Gluster Storage.
• Experienced in Installation of Operating Systems, Packages and Patches, adding peripherals, maintaining user accounts, System Security maintenance, backup/recovery, performance tuning, troubleshooting at various levels etc.
• Extensive experience with Kickstart in Red hatSatellite Linux, Jumpstart, Live Upgrade, Flash Install in Solaris, and Ignite in HP-UX.
• Developed tools to automate manual tasks using shell scripting, Python and integrated them inCI/CDpipeline through Jenkins.
• Experience in installing DB2 software, creating instances, databases and configuration management on DB2 servers.
• Experience in DB2 Linux System/Application DBA skills including HADR, setting up cronjobs for monitoring disk space, memory utilization, watchdog etc.
• Installed Jenkins/ Plugins for GIT Repository, Setup SCM Polling for Immediate Build with Maven and Maven Repository (Nexus Artifactory).
• Deployed latest patches for, Linux and Application servers, performed Red Hat Linux Kernel Tuning.
• Migrated physical Linux servers to Virtual Servers with all set of service configured.
• Implemented day-to-day tasks in Red Hat Linux that include upgrading kernel, HBA driver, configuring SAN Disks, Multipathing, NAS Mount and Unmounts.
• Experience in creating VM for Linux, Windows andSolaris. LVM, ZFS and zone management.
• Experienced on migration of VMGuest from one ESX Host to another ESX Host as well as performed storage VMotion.
• Responsible for monitoring Linux server's performance ensuring security and stability with the help of available UNIX utilities.
• Responsible building and supporting Red hat Satellite in Linux 5, 6 and 7.
• Configuration and deployment of Nagios Monitoring system for managing all the Linux warehouse systems.
• Installed, Configured, Monitoring Tools such as Splunk, Nagios and iCinga for Resource Monitoring/ Network Monitoring/Log Trace Monitoring.
• Provisioned and migrated Linux servers (from BSD to Red Hat).
• Experience in IT industry as Agile operations, Linux Administrator, Build/Release Management, Change/Incident management and Cloud Management.
• Good experience on DevOps tools such as Chef, Vagrant, Oracle Virtual Box, Puppet, Jenkins, Maven, ANT, IBM UDeploy, SVN, GIT and Docker.
• Network Services: SUSE 9.x 10.x and 11.x, Tru64 Unix v4.0& 5.x, Redhat Linux 9, Fedora Core 2 & 4, Solaris 2.6, 2.7 & 2.8, BSD & FreeBSD Unix.
• Administering Linux Desktop & Dev Server Shared Cluster Storage (LVM, gluster, piranha IPLB/LVS, NFS, NIS, autofs)
• Experience in System Administration, System Builds, Server builds, Installs, Upgrades, Patches, Migration, Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX Red Hat Linux Systems.
• Experience NIC bonding/NIC Teaming configuration in Linux/UNIX/Windows/VMware systems to increase the bandwidth or redundancy based on requirement by the application.
• Configure servers for storage, including creation of VDs and all supported RAID levels. (CEPH, Samba and LDAP)
• Configuring the Docker containers and creating Docker files for different environments on building Docker images including setting the entry point and volumes also ran Docker containers.
• Created Ansible Playbooks and Puppet Manifests to provision Apache Web servers, Tomcat servers, Nginx, Apache Spark and other applications. Strong use of Shell scripting languages including BASH for Linux.
• Worked with Chef Enterprise Hosted as well as On-Premises, Installed Workstation, Bootstrapped Nodes.
• Managing DNS, LDAP, FTP, Tomcat & Apache web servers on Linux servers.
• Expertise in implementation and maintenance of Apache Httpd, SMTP, DHCP, NFS, NIS, NIS+, LDAP, DNS, SAMBA, SQUID, Postfix, send mail, FTP, Remote Access, Security Management & Security trouble shooting skills.
• Experienced with the installation, configuration of volume management using VERITAS Volume Manager and Solstice Disk Suite on Solaris and experienced in RAID configurations.
• Experience in Backup Tools like NetBackup, Veeam Backup and Replication Suite.
• Installed, Configured, Managed Monitoring Tools such as Splunk, Nagios, iCinga for Resource Monitoring/Network Monitoring/Log Trace Monitoring.
• Expertise in writing Bash Scripts, Pearl Scripts (hash and arrays), Python programming for deployment of Java applications on bare servers or Middleware tools.
• Installation, Configuration and Management of RDBMS and NoSQL tools such as SQL Server, MySQL, DB2, PostgreSQL, MongoDB and Cassandra.

TECHNICAL SKILLS

Operating Systems: Windows 2008/2012/2016/2019 , UNIX, LINUX, MAC, Ubuntu, Sun Solaris, Ubuntu Server, VMware ESX 4.0/5.x/6.x/7.0, SUSE, IBM AIX, CentOS 5/6/7/8, Fedora, RHEL

Hardware: Dell Power edge, IBM Blade Center, Blades, EMC, Sun Fire.

Versioning tools: CVS, SVN, GIT, Perforce, PVCS, Clear Case, RTC, VSS, TFS, Bazaar.

Virtualization Tools: VMware, vSphere, ESX/ESXi, vCenter server.

Cloud Computing: AWS (EC2, ELB, S3), Azure

Test & Build tools: MAVEN, make file, ANT, MS Build, Jenkins, bamboo, Nagios, GRADLE, build forge.

Continuous Integration tools: Chef, Puppet, Docker, Ansible, Bamboo, Kubernetes.

Networking: TCP/IP, SMTP, DNS, DHCP, LDAP, HTTP/HTTPS, SSH.

Database Tools: Oracle 10g, 11g/12c RAC, Cassandra DB, MongoDB, DB2, MS Access, PL/SQL, MySQL, PostGre SQL

Monitoring Tools: Nagios, Net cool, Big Brother, Ipmonitor, Solar Winds, Splunk, Sar, Iostat, Vmstat, Top, Zabbix, Graphite, SolarWinds, Icinga

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

Web servers: Web logic, Web Sphere, Apache Tomcat, JBOSS.

Language/Scripting: C, C++, Perl scripting, shell scripting, Ruby, Python, Bash, VMware ESX.

PROFESSIONAL EXPERIENCE

Confidential, Beaverton, Oregon

Linux Admin/Engineer (Automation, VMware & Cloud)

Responsibilities:

• Extensive experience on Implementations, troubleshooting, and proactively monitored Red Hat systems for the Enterprise.
• Hands on experience on installation and configuration: Linux, Red Hat Enterprise Linux 4/5/6/7/8, SLES, CentOS, Ubuntu.
• Monitor systems capacity and performance, plans and executes disaster recovery procedures using various tools like Splunk, New Relic, ForgeRock and various IBM proprietary tools.
• Used Kubernetes for container orchestration that runs Docker containerized applications in a cluster of EC2 instances in a Linux environment.
• Develop and maintain automated CI/CD pipelines for code deployment using Jenkins.
• Designed and built a vmware environment using the free version of ESXi 6.5 and FreeBSD for NFS storage.
• Expertise in file system concepts like LVM, SVM, VxVM. Creating new file systems, increasing and decreasing file systems, mounting file systems, unmounting file systems and troubleshooting Disk space issues. Involved in System Analysis and Performance Monitoring of Red Hat Linux.
• Designed and implemented for fully automated Server build management, monitoring and deployment using DevOps Technologies like Ansible playbook.
• Implemented and monitored clustering on SPARC servers using Veritas Clustering.
• Designed AWS Cloud Formation templates to create custom sized VPC, subnets, NAT to ensure successful deployment of web applications and database templates.
• Created ZFS,ext3,CIFS,NFS filesystems on Solaris 10 and Redhat Linux environment.
• Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client and migrating servers across ESX hosts.
• Jumpstart Solaris servers, custom configure, install packages, patches, harden. Creating LDOMs, installing Solaris, creating volumes & installing packages.
• Automated the workflow using shell scripts.
• Worked on building Veritas Clusters from scratch and performed failover and High Availability tests.
• User management with LDAP and setting up Kerberos authentication for cluster and creation of volumes.
• Working knowledge on Automatic Storage Management (ASM) and experience in Shell scripting (Ksh/Csh/bash/Sed/Awk).
• Document all Deployments and / or configurations to Cisco Meraki, Firepower Threat Defense and ASA 55XX Series firewalls, Switches and Routers.
• Design and implementation of all SCCM and Distribution Points across the organization
• Design, Deploy and Operate High Availability Enterprise PCI Certified, Cloud-Only IaaS & PaaS, using a pure Cloud-Stack in Azure.
• Provide Sr Systems Engineering & Administration in a Cloud-Only, multi-OS systems environments to support & secure our clients.
• Installed, Deployed Red HatSatellite Enterprise Linux 6.x/7.x/8, CentOS and installation of packages and patches for Red Hat Linux Servers.
• Implemented, configured tested the following: firewalls, POP point of presence, Sun Solaris/AIX/ RedHat Linux/FreeBSD servers
• Involved in creating and configuring Zones/Containers, zfs filesystems in Solaris 10 environment.
• Building and managing Weblogic Server with Apache proxy and load balancing with haproxy.
• Build queries against the SCCM database for reporting purposes.
• Performed Installations, updates of new system packages using RPM, YUM in Linux servers.
• Worked on Linux based virtualization such as VMware vSphere web client.
• Integrating UNIX file systems using packages like SAMBA.
• Involved in Weblogic Server Administration, Apache Reverse Proxy and haproxy load balancing, web services.
• Worked with CI/CD system with Jenkins on Kubernetes container environment, utilized Kubernetes and Docker for the runtime environment for the CI/CD system to build, test and deploy.
• Worked on HAProxy load balancers.
• Leveraged Docker Engine to run Multiple Tomcat Instances as Containerized App Servers.
• Team role included working in VMware Orchestrator, VMware vRealize Automation Center 6.0 (vRA) catalog management creating cloud server provisioning entitlements, creating, and defining business groups, creating catalog items, creating services for the catalog items, creating Windows 2008/2012/2016/2019 ) and Linux (Red Hat 6/7/8) blueprints.
• Assist DEV-OPS teams, in supporting all infrastructure and platform requirements.
• Use Visual Studio &Shell Scripting to support all areas of our environments, to run a smooth and beyond cost effective solutions in which we pass the saving to our clients and their clients.
• Manage SCCM SQL Database and Create SQL Report and manage SCCM reporting Services’
• Migrated VMWARE VMs to AWS and Managed Services like EC2, S3 Bucket, Route53, ELB, EBS.
• Experienced in Red Hat Linux package administration using RPM and YUM.
• Built AWS S3 buckets and managed policies for S3 buckets and used S3 bucket and Glacier for storage and backup
• Disk space management, LVM, Mirroring, User & System Resource management, Paging Space management, job scheduling.
• Creating new file systems, monitoring disk usage, checking and backup of log files administration and monitoring the disk-based file system.BASH/Shell scripting. Created Shell Scripts for automation of many routine processes.
• Performed vMotion and Storage vMotion of VMDK and VMF files to target landing zones.
• Performed p2v of standalone Red Hat Linux machines to virtual instances using VM converter and PlateSpin.
• Deploy, configure & secure Web Apps and Azure SQL servers. Integrate them into the IaaS virtual networks.
• Expertise onRed HatSatellite Linux, Ubuntu, Solaris, AIX, CentOS, Fedora, Windows environments,andVMware vSphere. Experience in Installing, upgrading and configuringRed HatLinux5.x, 6.x and 7.x and Debianusing Kickstart Servers.
• Experience in Installing Firmware Upgrades, kernel patches, systems configuration, system Performance tuning on Unix/ Linux systems Installation and troubleshooting on VMware running Linux(Red Hat) and Windows (Wintel, windows 7/8/10, XP, Vista).
• Creating, cloningLinuxVirtual Machines, templatesusingVMware 4/5/6/7 and migrating serversbetween ESX hosts. Implement and maintain ESX host clusters and security.
• Managed Cloud/On Premises environments automated the provisioning of VM’s, patching, software installs, deployments and part of DevOps team in troubleshooting and fixing issues.
• Use PowerShell to connect to Exchange & SharePoint 2016 and for Office 365.
• Setup, configure and administer all mail connectors, groups, and personnel.
• Work in Hyper-V and VMware cluster environments on Dell-EMC SANS.
• Use Azure Recovery Services Vault to backup, recovery and migrate Azure & On-Premises VM's.
• Resolve cloud deployments, which include PaaS, IaaS, IOPs, storage uses and networking designs.
• Resolve Active Directory replication problems, GPO and DNS issues.
• Deploy, configure, and patch Ubuntu and Red Hat Satellite Linux servers.
• Properly and professionally document all work completed or in process of being done, using Visio, OneNote, Confluence.
• Setup virtual desktop infrastructures using tools such as openstack, glusterfs, and many other open source technologies.
• Setup & support Visual Studio Team Services online and TFS (in Azure) for Dev Ops Engineers
• Migrated all our hosted VMware datacenter to become a "Cloud-Only" using platform.

Confidential, San Diego, California

System Administrator (Linux, VMware)

Responsibilities:

• Installation, configuration, and upgrade of RHEL 6.x, 7.x, VMware 4.x, 5.0, 5.1, 5.5, windows 2008 R2, 2012 operating systems.
• Install and configure Web and Application Servers on Linux and the same procedure on MySQL Maintain the CEPH storage clusters for our storage team.
• Installation configuration ofRAIDVolume Management usingVERITASVolume Manager in Solaris, ZFS file system on Solaris.
• Installed and configured LDAPServer, MailServer, Samba Server, NFS Server
• Built, configured, and administered Jenkins Continuous Integration tool on Linux machines along with adding/updating plugins such as SVN, GIT, Maven, ANT, and Puppet. Installed, configured, and supported Puppet to create and enforce standardization across environments.
• Worked on Management of Puppet and Ansible automation tool including installation of Puppet agent on client.
• Worked on Puppet extensively for deployment for servers, creating on custom scripts and managing changes through Puppet master server on its clients.
• Implemented and managed all aspects of core virtualization technology such as vMotion, Storage vMotion, HA, DRS, Affinity Anti-Affinity rules and resource pools.Hot and Cold Cloning of Virtual Machines usingVMwareConverter.
• Installed, configured, upgraded, administered and troubleshot issues on application/web servers comprised of JBoss EAP, Nginx, Tomcat.
• Implemented Ansible to manage all existing servers and automate the build/configuration of new servers.
• Created multiple VPCs and public/private subnet for distribution as groups into various AZ of VPC. Established a VPC peering with different AWS accounts.
• Created scripts to automate daily tasks like creating LAMP stack VPS's, ZFS backup scripts, VPS load testing, SSL installations.
• Configure apache reverse proxy to handle multiple application servers for load balancing and protect the servers from internet.
• Performed automated installation of hp and cisco servers using linux kickstart server.
• Worked on linux kernel parameter tuning as per the requirements given by the dba team
• Updating RHEL servers, applying security patches using satellite server.
• Generated NAT gateways and instances to allow communication from the private instances to the internet through bastion hosts.
• Used security groups, network ACLs, internet gateways and route tables to ensure a secure zone for organization in AWS public cloud. Shell scripting for Jenkins automation, Jenkins and System, Network monitoring.
• Managing Linux servers Red Hat Enterprise Linux like updating Kernels, deploying security patches and package management.
• Manage SCCM infrastructure health and maintenance
• Administration of mail server involves user creation and defining alias groups.
• Administration of Apache web server for space management and review performance management.
• Configuring and managing and NFS servers.Backups using tape drives.
• Managing Compaq blade servers, HP DL-360, HP DL-380, IBM x series (rack servers).Automation of jobs using cron jobs
• Contact vendors for hardware procurement and replacements. Monitoring various logs of applications to fix problems.
• Built and Maintained VMware infrastructure with Windows Servers, Windows XP/7/8/10 Clients across Test and Demo Environments. Implemented VMware View to distribute Client Desktops to user accounts
• Worked on creating Virtual machine Templates with customized guest OS. rpm package administration in linux using rpm build, installing packages and restoring corrupted rpm database.
• Conducted Characterization Test Iterations on test floors with Process Automation Software package to collect performance data and to size the software installed Virtual Environment.
• Created Zetabyte file system ZFS inSolaris10.
• Configure proxy and load balancing servers to access app servers.
• Conducted Log Analysis and Troubleshoots on Performance of ESXi environment
• Was managing user accounts for the team access for Red Hat Satellite Server. created RPM packages using RPMBUILD, verifying the new build packages and distributing the package. Worked on SAN/EMC storages with HBA card configuration and different level of RAID configuration.
• Provided Consultation for Troubleshooting in Virtualization, SAN Configuration, Active Directory group policy design & Implementation and ESXi Distributed vSwitch Network Configuration
• Provided Technical Recommendations for Installation and Implementation of Virtual Environments in Industrial Plants. Identified Administrative Standards, Issues and Process Improvements
• Created scripts in VB, Perl, powershell to Automate Tasks in the Guest VMs.Built and maintained VMware and Windows Server Infrastructure. Involved in Installation and Configuration of vCenter Heart Beat.
• Involved in SRM Setup and Performed Failover Testing.
• Provided technical assistance and best practices for customers to simulate in their own environment
• Worked on developing technical papers on Virtualization for Process Automation Systems
• Used IAM for creating roles, users, groups and implemented MFA to provide additional security to the AWS account and its resources.
• Installed, Create Virtual machine (KVM, VMware) and configured Redhat Enterprise Linux (RHEL5/6/7), Centos 5/6/7.
• Server racking, cabling and server built (kickstart).
• Install and maintain security patches on the operational and development system, which includes but is not limited to, Centos, Red Hat Linux and Solaris 10.
• Worked on installation, configuration and maintenance Redhat, CentOS and Suse Servers at multiple Data Centers.
• Responsible for CI and CD using Anthil Pro, UrbanCode Deploy, Jenkins integrating with TFS, MS Build, Maven, Git, SVN, Rundeck and Chef.
• Written/Developed Chef Cookbooks to automate the entire deployment process as well as Infrastructure admin tasks.
• Installed Chef-Server Enterprise On-Premise/WorkStation/ Bootstrapped the Nodes using Knife. Planned and performed the upgrades on Linux operating system.
• Developed Chef Cookbooks/recipes to migrate the VMWARE VMs to AWS and managed Services like EC2, S3Bucket, Route53, ELB, EBS.
• Managed VMWARE vSphere HOSTS in a HA/DRS Environment with vMotion/ Site Recovery Manager, Replication Manager vRealize Automation Center and Fiber SAN.Experience working with production servers at multiple data centers.
• Implemented Migration from VMWARE to AWS using VMDK Import tools.
• Managed and improved build systems and integrated test automation framework, providing support for continuous, nightly and milestone builds across multiple streams of development and assisted developers with the timely resolution of any build failures.
• Worked on Installation/Configuration/Administrated VMware ESXi 5.1/5.5 & 6.0 and migrated existing servers into VMware Infrastructure.
• Worked on UNIX, Red hat Satellite Linux 5x, 6x, 7x, Linux Desktop, SUSE Linux Enterprise Server 9.0.
• Maintains UNIX/Linux Operating System to provide optimum performance and system availability.
• Worked closely with Cloud teams to build and deploy VM's using Open Stack and VMware.
• Installed and deployed the VMware ESX containers for the VM cloud and Vsphere
• Provided daily monitoring, management, and implementation of RHEL 6/7 servers across various environments.
• Created and configured ELB and auto scaling groups to distribute the traffic in MultiAZ for fault tolerance and high availability.
• Generated and configured the S3 buckets with access and life cycle policies.
• NAT, and multiple instances to ensure successful deployment of web applications.
• Implemented DNS through route 53 to have highly available and scalable applications.
• Automated configuration management and deployments using Ansible playbooks and Yaml for resource declaration. And creating roles and updating Playbooks to provision servers by using Ansible.
• Involved in monitoring and managing Microsoft Azure cloud and VMware environments. Involved working on source control tool like GITHUB.
• Good Knowledge of writing Ansible playbook and running mobile Ad-hoc commands.
• Administration of AIX Logical Volume Manager (LVM). LPAR administration and Resource management.
• Managed Amazon Web services such as EC2, S3, Route-53, RDS, SNS, Cloud watch, Cloud trail.
• Created the EFS and mounted the share on systems using the nfsv4 protocol.
• Monitored system log files and performed OS patching, user administration, backup, and software upgrades on RHEL servers.
• Working with vendor to resolve issues. Working on Incidents/Problems/Tasks/Change Requests to maintain workflow.
• Working with clients to resolve the reports/file process issue.
• Participated in a 24x7 on-call rotation in my team.
• Analyzed and resolved any issues on the servers like network connectivity and storage.

Confidential, Phoenix, Arizona

Linux/Unix, VMware Sys Admin

Responsibilities:

• Installed, configured and Administrated of all UNIX/LINUX servers, includes the design and selection of relevant hardware to Support the installation/upgrades of RedHat 5/6/7, CentOS 5/6/7, operating systems and VMware environment 5.x/4.x.
• Writing NSH/BLCI as well as Shell scripts for the infrastructure management or monitoring.
• Worked along with the team to migrate Linux Redhat.
• Creating the server profile and making the network and SAN virtual configuration using Virtual Connect in blade center C7000.
• Creating the file systems using RedHat volume manager and performing the health check on regular basis for all Linux serves.
• Scanning the newly assigned LUNs to the serves and assigning them to volume group and increasing the filesystem using RedHat volume manager
• Worked with File System includes UNIX file System, and Network file system.
• Mounted/un-mounted new file systems, mounted file systems on remote servers using NFS Server & client configurations, performed disk configurations and crash recovery.
• Established network security using Linux Firewall and troubleshoot problems relating to boot loaders (GRUB,LILO).
• Administering Disks and file systems using LVM.Configure and maintain NFS Servers for both media and data sharing between servers and resolved any shared server issues. Familiar with OS installation, Device configuration and Driver Installation.
• Strong storage / Network knowledge and Hands-on (I.e.FC /SCSI)
• Good at system level troubleshooting and Network/ Storage debugging skills.
• Installation and configuration of Web /Application Server Apache-Tomcat.
• Deployment and Configuration of Red Hat Satellite Server, including creating maintaining any customized kickstart configuration channels to deploy RHEL.
• Configured Red Hat Cluster Nodes for my legacy applications and verified the daily health check on the Cluster Nodes.
• Maintained user account management, configured servers to register with Red Hat Network (RHN)
• Satellite Server, monitored servers - workload assessment, service console monitoring. Installation, configuration and management of Apache 2.24 and Tomcat servers.
• Installation and administration of RHEL 4/5/6, configured kickstart server and updating/applying patches to the servers using Redhat Satellite server. Automation of jobs through crontab and autosys.
• Remote system administration using tools like SSH, Telnet, and Rlogin.
• Installing Red Hat Enterprise Linux 4.x/5.x/6.x, CentOS and installing packages, patches for Red Hat Linux servers, Administration of RHEL which includes installation, testing, tuning, upgrading, troubleshooting server issues.
• Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
• Configuration and administration of LDAP, NFS, FTP, SAMBA and POSTFIX Servers in Red Hat Enterprise Linux.
• Yum configuration & package installation through YUM. Configuring and deploying of iSCSI server and Client.
• Installation of Red Hat Enterprise Linux. Configuration and troubleshooting for Red Hat Linux. Performances, CPU and Memory monitoring of Red Hat Enterprise Linux.
• Deployed VMware 5.5 architecture from scratch to deploy Cisco Wireless, SolarWinds server and Management servers for the infrastructure team. Use Veeam Backup - to backup all VM's.
• Deployed Windows 2012/2016 domain controller servers, as well as Windows 2008 R2 servers, to include. Install & support SQL 2008R2 & 2012.
• Worked on IP bonding for load balancing and fail over, Firewall, SELINUX. Heartbeat clustering for high availability in Apache.
• 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.
• Production support of Apache and JBoss including installation, configuration, management and troubleshooting. Installation and monitoring of Veritas Volume Manager, Veritas NetBackup and Veritas Cluster Server on SAN Environment.
• Create mount points for database administrators for Oracle database install. Hosting and securing web pages using Apache (Httpd) web server and SSL.
• Experienced in configuration maintaining RedHat Cluster, Veritas Cluster server, NetBackup, Veritas volume manager and Veritas file system. Experienced in Virtualization Products KVM, XEN
• Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Creating Hardware Raid and LVM's and administering them in RedHat Linux.
• Configuring RedHat systems over the network, implement automated tasks through cronjobs, resolving tickets according to the priority basis.
• Installation of patches and packages using RPM and yum in RedHat Linux.
• Setup, configured, and debugged network configurations for RedHat servers and workstations
• Installed RedHat Linux using kickstart.
• Worked in infrastructure team on installation, configuration and administration of RHEL 5.x/6.x/7 & CentOS 5.x/6. x.
• Installed and configured ESXi Servers on Blade servers. Creating Virtual machines. Creation of templates from VMs and Creation of VMs from templates.
• Performance Tuning and troubleshooting of Linux server and working with the application/database team to resolve issues
• Create, deploy and manage Linux and windows VM using Red Hat Enterprise Virtualization Manager, which involves moving and migrating VM from one cluster to another cluster or within the same cluster.
• Handling troubleshooting issues like Booting, RPM packages, User management and backup.
• Experience in creating Clusters in Virtual Center and adding ESXi Hosts to Virtual Center Cluster. Experience in setting up VMKernel Network and Enable VMotion.
• Monitoring system performance and kernel tuning to enhance the system performance.
• Performing troubleshooting production issues, root cause analysis and preventive actions.
• Creating RAW and ASM disks for oracle.
• Managed and reviewed Hadoop log files and installed and reviewed Hadoop components. Monitoring application servers’ OS (Linux) performance and initial troubleshooting.
• Performed physical to virtual (P2V) and (V2V) migrations for approximately 500 physical servers utilizing VMware Converter.
• Firmware upgrade, managing the servers, collecting Logs, open KVM console for troubleshooting. Performed file system backups and restores using local archiving utilities to include tar, Gzip.
• Send weekly Report to management on overall system performance and health checks took turns for 24/7 production support.

Confidential, Dallas, Texas

Unix Sys Admin

Responsibilities:

• Build servers from scratch using hypervisors (Oracle Virtual box and VMware ESXi). Platforms involved Linux (RHEL 4/5, Centos 6/7, UNIX
• Managed1200+ serverslocated in Europe using remote tools.
• Installation, configuration, and upgrade of Red HatLinux4/5.
• Patches and package management onLinuxservers.
• Involved in setting up Kick-start server for network installation inLinuxEnvironment.
• Worked on installation, configuration, and support for RedHat Satellite Server.
• Working with RedHat Satellite Server for upgrading and patchingLinuxServers.
• Involved in creating new volumes using Logical Volume Manager (LVM).
• Experience installationRHEL OSand configured required network onHPC cluster.
• Installation, Configuration & Upgrade ofSolaris, AIX, HP-UX, Linux (Red hat and SuSE)operating system.
• ManagedHPC cluster, performed hardware, BIOS and application upgrade.
• Configured and managed Apache web server and Managed software and hardwareRAID systems.
• Design and Implementation of migration strategy for consolidating Data Centers from around the world to centralized locations in US which involves numerous servers of various LINUX versions.
• Identification, planning and migration of P2V candidates and new builds from each site with ZERO downtime.
• Performed tons of P2V Migration, Created clones and templates of Virtual Machines
• Deployed VMs Through OVF/OVA Templates, Created & Troubleshot Virtual Networks and vSwitches
• Configured Netbackup Client thorough planning was done for downtime, knowing each server usage & their placement in Datacenter.
• Experience inSystem monitoring,Performance tuningand OS hardening to secure the environment.
• Administered tasks likeuserandpasswordmanagement, allocating quotas to users as well as systemstartupandshutdown,monitoringandpartitioning.
• SetupNISincludingconfigurationandtroubleshooting of master, slave serversand clients.
• Experience in configuration ofNFSand Naming services likeNISandDNS.
• Creating Data centers in the Vsphere Web client and adding the Hosts to the Data center
• Configuring the Host profiles in VMware
• Creating port groups tagged with different VLans and assigning to each individual VM
• Managed System Firewall utilizing IP Chains, IP Tables. ImplementedSSH SSL
• Setup and maintainedDNSPrimary, Secondary, Cache-only servers, DHCP servers and DNS clients.
• Introduce UNIX/Linux, Windows server to the LAN.
• Create User Account and Enable SSh for terminal access in UNIX/Linux Disabling and enabling GUI in Solaris and RHEL/ CentOS
• User and security management such as disabling and setting passwords. Configure Access Security using chown, chgroup, chmod, acl.