SUMMARY

• Skilled professional 7+ years of experience as certified Red Hat Linux Administrator.
• CI/CD (Continuous Integration / Continuous Deployment) process, Strong background in Linux/Unix Administration, Build and Release Management and Cloud Implementation all within that suites the needs of an environment under DevOps Culture.
• Experience inConfiguration management toolssuch asHPSA, Open View, & Kickstart.Knowledge on Python and JSON scripting.
• Deployed and configuredYUMserver including kickstart configuration of automatic network settings, filesystems and latest kernel patching updates with Bashor Shell scripting.
• Working as Cloud Administrator on AWS, involved in configuring virtual machines, storage accounts, resource groups using AWS Cloud formation templates. Worked on remote login to Virtual Machines to troubleshoot, monitor and deploy applications.
• Experienced with deployments, Maintenance and troubleshooting applications onOracle Cloud & AWS.
• Deployed VMs as scale sets (VMSS), availability sets (Availability sets), with it, the application will have the scalable ability to grow up or contract as per the needs.
• Deploying and managing applications in Docker & Constrainers and storing the artifacts in Artifactory for various on - premises and microservice applications.
• Experience in Administration/Maintenance of Source Control Management Systems such as Git and Sub Version (SVN). Created tags and branches, fixed merge issues and administered software repositories.
• Knowledge in migrating on-premises applications to Oracle Cloud and configuredVNETsandsubnetsas per the project requirement also performedPowerShell scriptingto doPatching,Imaging, andDeployments inOracle Cloud.
• Worked in anAgiledevelopment team to deliver an end to end continuous integration/continuous delivery product in an open source environment using tools like Chef.
• Experienced in working onDevOps /Scrumoperations process and tools area (Code review, unit test automation, Build & Release automation Environment, Incident and Change Management) including various tools.
• Expert with Installation of Linux and Windows OS such as RHEL 5.x/6.x/7, CentOS, SUSE Linux, Ubuntu. Installed RHEL using Kick start with Pre-Installation & Post-Installation Scripts, PXE & Azure Templates.
• Configuring and Administering NFS, DNS, NIS, DHCP, NIS+ and LDAP on Linux server environment. Knowledge of networking concepts (DNS, TCP/IP, UDP, HTTP, SSH, OSI layers, Client/Server architecture and Firewalls).
• Automated the Continuous Build process, monitored, maintained, and controlled software configurations in secured distributed environment for various application systems.
• Handling and troubleshooting Windows, VMware & LinuxVM’s related incidents.
• Virtualization within private cloud using VMware (ESX), Oracle VM’s and Open-stack (KVM hypervisor) and writing scripts to develop test automation for Linux and Cloud.
• Performance tuning with SQL and enhancing application performances.
• Performance Tuning SQL using Explain plan, SQL*Trace and Auto Trace utility.
• Experience in Debugging crash dumps using kernel-debugger and root cause investigation for performance related issues. Also, in-depth knowledge of using, configuring and fine-tuning the HPOA, Tivoli and Service Now monitoring tools.
• Proficient working with NAS, SAN and DAS storage architectures. Have experience in migrating storage from other storage architectures on to Storage Area Networking (SAN).
• Experience and administrating the Remote Console, ILO and DRAC systems for HPE, DELL & Oracle Systems.
• Expertise in file system concepts LVM, SVM, VxVM. Creating new file systems, increasing and decreasing file systems, mounting file systems, unmounting file systems and troubleshooting Disk space issues. Efficiency in installing, configuring and implementing the RAID Technologies using various tools like VxVM and SVM.
• Involved in large data center migration - planning, designing, moving servers to new data center, coordinating and troubleshooting issues with various data center, network, application and storage teams

TECHNICAL SKILLS

Cloud: AWS, Oracle Cloud and Microsoft Azure

Operating Systems: Red Hat Linux 6.x/7.x SUSE 11/12.x, Ubuntu, OEL, CentOS, Windows & VMware/ESXi

Hardware: HPE ProLiant DL 380, 580, 720 Generations, Oracle x86 Hardware, Oracle Cloud or DOM servers.

DevOps: Docker, Kubernetes, JSON, HPSA

Web Application: Apache, WebSphere, JAVA

Databases/Languages: Oracle, DB2, MySQL/SQL 2008/2012/2014 , Shell, SAP HANA

Service Management: Service Now, HP Service Manager, IBM Remedy, ITILv3, Scrum, Agile

Technologies Certified: Oracle DB Administrator, Red Hat Linux Certified System Administrator (RHCSA), Android Developer

PROFESSIONAL EXPERIENCE

Confidential

Linux System Administrator/ Cloud Engineer

Responsibilities:

• Working as Linux &Cloud Administrator on Oracle Managed Cloud Services involved in configuring virtual machines, storage accounts, resource groups using ARM templates. Worked on remote login to Virtual Machines to troubleshoot, monitor and deploy applications.
• Automate manual tasks involved in server builds and server modifications using Ansible playbooks. Used Ansible to manage configuration within the Linux servers, install and configure services using cookbooks and playbooks as part of automation.
• Worked with WindowsOracle Cloud (IaaS) migrating like creatingOracleVMs, storage accounts, VHDs, storage pools, migrating on premise servers toAZUREand creating availability sets inAZURE. Deployed VMs as scale sets (VMSS), availability sets (AV-sets), with it, the application will have the scalable ability to grow up or contract as per the needs.
• Involved in creating and managing multiple instances of Apache Tomcat and deployed several test applications in those instances for QA environment.
• Worked with completely fair schedulers to maximize CPU utilization by thread affinity.
• Implemented NIS and NFS for administrative and project requirements.
• Installed and Configured Web and investigate the configuration changes in the production environment.
• Responsible for multicasting of various components as a system administrator.
• Worked closely with database administration staff to ensure optimal performance of databases, and maintain development applications and databases
• Wrote Python Scripts to Monitor Variety of Services &Perl Scripts with Hash/Arrays to Insert/Delete/Modify content in multiple servers. Wrote Python and Shell scripts to monitor installed enterprise applications and to get information from the logs and database in the required format and other daily activities and jobs.
• Configured CI/CD system with Jenkins on Kubernetes container environment, utilizing Kubernetes and Docker for the runtime environment for the CI/CD system to build and test and deploy.
• Experience working on severalDockercomponentslike DockerEngine, Hub, Machine, Compose and DockerRegistry.
• Troubleshooting issues on Ansible, Red Hat satellite servers, Chef and Azure portal. Resizing the servers and adding storage on cloud servers through PowerShell and Oracle Customer portal.
• Installation of Red Hat Linux, Kickstart Installation through SATELLITE Server, Installed and configured Efficiently managed Disk and File system through Veritas Volume Manager, Logical Volume.
• Using vmstat, iostat, SAR, tnsping & netstat to determine the system and network health. Performing failover and integrity test on new Red hat servers before rolling out to production.

Confidential

Linux System Administrator/ Cloud Engineer

Responsibilities:

• Working as Cloud Administrator on Oracle Managed Cloud Services involved in configuring virtual machines, resource groups using ARM templates. Worked on remote login to Virtual Machines to troubleshoot, monitor and deploy applications.
• ImplementedOracle Disaster Recoverysite andOracle Backup agent is configured and virtual machine backup, EnabledOracle Virtual machinebackup from theVaultand configured theHigh-Availability design.
• ManagedOracleInfrastructureOracleWeb Roles,Worker Roles,VM Role, Oracle DB,Azure Storage,LDAP licences, virtual machines Backupand Recover from a Recovery ServicesVaultusingAzure PowerShellandOracle client portal.
• Automate manual tasks involved in server builds and server modifications using Ansible playbooks. Used Ansible to manage configuration within the Linux servers, install and configure services using cookbooks and playbooks as part of automation.
• Worked with WindowsOracle Cloud (IaaS) migrating like creatingOracleVMs, storage accounts, VHDs, storage pools, migrating on premise servers toAWSand creating availability sets inAWS. Deployed VMs as scale sets (VMSS), availability sets (AV-sets), with it, the application will have the scalable ability to grow up or contract as per the needs.
• Involved in creating and managing multiple instances of Apache Tomcat and deployed several test applications in those instances for QA environment.
• Building RHEL (Linux) servers using kickstart process getting the kickstart file from the kickstart server.
• Adding Multipath disks for oracle RAC (Real Application Cluster) high-availability and configuring in under configuration filesystems in Linux.
• Configured System imager for Linux Servers and used it for Cloning, software distribution and OS updates and performed installations using pxe-boot, on hundreds of Linux Servers
• Good working experience with RedHat Satellite Server for upgrading and patching Linux Servers.
• Installed, Configured and maintenance of DNS servers, DHCP Servers, Mail Servers, FTP, NDM servers, NIS, Samba and web servers.

Confidential

Linux Administrator

Responsibilities:

• Deployment and maintenance of Red hat Linux and ESX/ESXi servers and app software in across the network mostly Dell, HP and IBM hardware. Managed OS upgrades and installation of third-party software, packages and patches as per client requirement.
• Involved in Designing Network and Datacenter for different customers and build the Unix/Linux servers, migrated data one datacenter to new datacenter.
• Involved in installation and configuration operating system Red hat Enterprise Linux (RHEL5.3 and RHEL 5.4) in development and test environments almost six levels on HP physical servers and Virtual Machines.
• Build the Linux Firewall for network and implement to secure the network, efficiently managed RAID, File system through LVM.
• Provided on-call pager support for Critical Production Systems and applications and Documentation writing and re-organizing within portal.
• Configuration of LVM (Logical Volume Manager) to manage volume group, logical and physical partitions and importing new physical volumes
• Installed the latest patches for, Oracle on Red hat Linux servers, Configured and administered Send mail, Samba, Squid servers in Linux environment.
• Worked on configuring SSL certificates in, Apache, Apache Tomcat, thread dumps.
• Worked with DBA team for database performance issues, network related issue on Linux / Unix Servers and with vendors for hardware related issues.
• Coordinating with QA/DEV/Project/Delivery/Production support/Managers and Performance teams to consider concerns, issues and addressing those aspects to meet the delivery dates
• Installed and configured monitoring tools Nagios for monitoring the network bandwidth and the hard drives status
• Installing, Configuring and Maintaining the DHCP, DNS, NFS, NIS, send mail server and LDAP.
• Managing systems routine backup, scheduling jobs like disabling and enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• User Account Management, Group Account Management, configuring dumb terminals, adding modems, formatting and partitioning disks, manipulating swap, local and remote printer management, taking and restoring backup, scheduling jobs.
• Performance tuning and preventive maintenance performed daily backup.
• Resolving TCP/IP network access problems for the clients. Implementing Remote System Monitoring with Sun Microsystems. Develop, Maintain, update various scripts for services (start, stop, restart, recycle, cron jobs) Unix based shell.
• Debugging critical infrastructure issues and general on-call duties.
• Scheduling full and incremental backups using Net Backup on daily, weekly and monthly basis. Experience with adding and configuring devices like Hard disks and Backup devices etc.

Confidential

Linux/DBA Administrator

Responsibilities:

• Deployment and maintenance of Red hat Linux and ESX/ESXi servers and app software in across the network mostly Dell, HP and IBM hardware. Managed OS upgrades and installation of third-party software, packages and patches as per client requirement.
• Deployment and maintenance of Linux systems and configuring the filesystems based on application/DB requirements.
• Run-of-business activities included DNS, FTP, crontab, and web configuration management, OS patching or upgrades, and security fix deployment. Installation and Configuration of SAMBA, NFS servers & clients.
• Installation and managing Oracle DB &MySQL servers; Creation of DB users, tables, executing queries, backup of DB etc. DB fine tuning and troubleshooting.
• Basic knowledge about cluster environment.Handling and Troubleshooting of Operating Systems & Software Installations.
• Creation of User Accountsand Password Reset. Also, Configuring and Troubleshooting of Servers in Network.
• Technical Support for Remote Users. Also, Day to day Windows, Linux & VM admin activities
• VMware related server incidents handling and basic request handling.
• Managing and maintaining Reports of technical Components, preparing batch schedules etc.
• Installing & configuring the monitoring software and incidents handling.
• Basic understanding Storage and SAN configurations.