SUMMARY:

• 8+ years of extensive experience in Unix/Linux systems as System Engineer in Devops, AWS, UNIX & Linux (RedHat&SuSE), and System Administrator on versions of RHEL 4/5/6/7/8, SUSE, CentOS, and VMware Infrastructure 5.x, 6.x,6.0, 7.0. Installation& Configuration and Windows environment.
• Experienced in Installs, Upgrades, Patches, Configuration, performance tuning on UNIX and system software & hardware
• Extensive experience in performing System Integration/Administration for Microsoft Windows 2003/2008/2012/2016/2019 Servers, Windows 7/ Windows 8, 10 and Red HatLinux.
• Experience in Installing, configuring, and maintaining Samba, Web Sphere & Web Logic Application Servers, Nagios and Chef.
• Efficiency in installing, configuring, and implementing the LVM, and RAID Technologies using various tools like Veritas volume manager, Solaris volume manager.
• Implemented day - to-day tasks in Red Hat Linux including upgrading RPM's, Kernel tuning, HBA Driver, configure SAN's, Multipathing and Logical Volume Manager LVM and Automation in CI/CD
• Virtualization of an operating system, servers and network resources. (Ldom, zone)
• Disk space and File system management using VERITAS Volume Manager, Solaris Volume Manager, and Logical Volume Manager LVM and RAID Volume Management.
• Configuration Installation of Red hat Linux 5/6/7/8 and Oracle Enterprise Linux by using Kick Start, Red Hat Satellite Server and customized bash/perl scripts. Integrated Jenkins with various DevOps tools such as Nexus, SonarQube, and Chef etc.
• Performed automated installation of Operating systems using kickstart forLinuxand Jumpstart for Solaris.
• Developed tools to automate manual tasks using shell scripting, Python and integrated them inCI/CDpipeline through Jenkins.
• Experienced in installation of Operating Systems, Packages and Patches, adding Peripheral, maintaining user accounts, System Security, backup/recovery, performance tuning, troubleshooting at various levels and having knowledge on retail/e commerce domain.
• Strong analytical, diagnostics, troubleshooting skills to consistently deliver productive solutions, with debugging an operating system issue inLinuxsystem.
• Experienced working in a transformingDevOpsculture implementingCI/CDprocess using tools like GIT, Jenkins, Maven and Chef.
• Amazon Web Services, EC2 Storage Managements integration and utilization within this infrastructure and applications.
• Experience in Installation and configuration of VMware ESX(i) server on Dell and HP Proliant servers and configured VMs for Solaris x86 and Linux. Experienced using Red Hat Satellite server to deploy, monitor, update, and manage systems.
• Continuous deployment CD using Ant, Maven. Perl, Power shell, Shell, Puppet, Chef, Packer, Terraform on to prem., AWS and Azure
• Extensive experience using Maven, Ant, Gradle, Jenkins and Bamboo as a Build Tool for the building of deployable artifacts (war & ear) from source code.
• Experience in creating inventory, job templates and scheduling jobs using Ansible Tower and expertise in writing Ansible Playbooks.
• Create and maintain fully automatedCI/CDand CT pipelines for code build and deployment pipelines for multiple applications using Bamboo.
• Planning and implementation of data and storage management solutions inAzure(SQL,Azurefiles, Queue storage, Blob storage), Migrating the current code to CI/CD pipeline via Ant to Maven and Anthill Pro to Jenkins.
• Implementing scripts with Power Shell for Run books. Implemented High level report using Power BI and SQLAzurefrom continuous web job
• Hands on experience in installing, configuring, and supporting web servers like APACHE, TOMCAT, IIS, iPlanet over DMZ (Demilitarized Zone) in order to enhance the security of the server access.
• Experience in System Administration, System Builds, Server builds, Installs, Upgrades, Patches, Migration, Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine tuning on UNIX and Red Hat Linux Systems.
• Experienced in Python and Shell scripting to automate the provisioning and deployment. Implemented continuous integration using UDeploy. Good experience on DevOps tools
• Worked with Ansible playbooks for virtual and physical instance provisioning, configuration management, patching and software deployment. Experienced in shell scripting using ksh, bash, perl, Ruby and python to automate system administration jobs.
• Ability in execution of XML, BASH, Shell Scripts, Perl Scripts, Ruby scripts, Python Scripts and JAVA Scripts.
• Experience in applying security patches and updating Redhat Linux OS version using Red Hat Satellite server.
• Deploy and monitor scalable infrastructure on Amazon web services & configuration management using Ansible.
• Implemented Migration from VMWARE to AWS using VMDK Import tools.
• Experience in implementation and maintenance of VMware, DNS, DHCP, NIS, NFS, SMTP and AmazonLinux instances..
• Experienced in Setting up Chef Server/Workstation and Bootstrapping Nodes. Wrote Wrapper cookbooks, recipes and utilized community cookbooks as well. Performed testing with Kitchen and Unit Testing.
• Deployed Docker Engines in Virtualized Platforms for containerization of multiple apps.
• Worked with Ansibleplaybooks forvirtual and physical instanceprovisioning, configuration management, patchingand software deployment.Maintained data files and monitored system configuration to ensure data integrity.
• Established capabilities in application design, implementation, troubleshooting, monitoring using solarwinds, nagios, continuous improvement and change controls. Enhances and automates internal processes to generate efficiency.
• Experience with VMware VSphere7.0, 6.7, 6.5, 6.0, 5.5 and 5, VMware vCenter 5.5, vCenter5, VCenter 4.1, HA, DRS, VMware VCenter Converter, Host Profiles, VMotion, Storage VMotion, Virtual Appliance, update manager, powerCLI, Remote CLI.
• Involved in Data Center Migration for P2P, V2V and P2V environments.Worked extensively on Templates and clones.
• Involved in upgrading ESX 4.1 to ESXi 5.0, 5.1, 5.1 and 6.0/6.5/6.7/7.0, P2V and V2V conversions using VMware Converter.
• Installing and Configuring VMware vCenter Server and use the vSphere client to connect and manage vCenter Server. Licensing VMware vSphere.Creating and Managing VMFS Data stores and connecting NFS Shares to vCenter Servers.
• Good knowledge on HP, IBM, Cisco UCS and Dell hardware, like analyzing the DSA and IML logs, configuring HP Array and extending the drive size on local drives.
• Experience in Installing, Configuring, Administration and Troubleshooting Microsoft Windows 2000/ 2003/2008/2012/2016/2019 Operating Systems.

TECHNICAL SKILLS:

Operating Systems: Linux (Red Hat 4.x, 5.x, 6.x, 7.x, 8, SUSE 9,10,11, Unix-Sun Solaris 8,9,10,11 VMware ESX 3.5,4.0,5.x, 6.x,7.0 Ubuntu

Networking Environment: NFS, AutoFS, NIS, DNS, DHCP, Cisco Routers/Switches, WAN, SMTP, LAN, FTP/TFTP

Monitoring Tools: Nagios, Tivoli, snmp, EM7, splunk, Xymon, Zabbix

Web/Application Servers: Amazon Web servers (AWS), JBoss, Web Logic, WebSphere, Apache Server, Apache Tomcat

Programming Languages: C, C++, Unix Shell scripting, Python, Perl and Ruby scripting, HTML, PL/SQL

Disk Management: Logical Volume Manager, Veritas Volume Manager, Solaris Volume Manager

Hardware: Cisco UCS/HP/Dell/IBM/Sun Blade Servers, Sun Sparc.

RDBMS: Oracle 8i/9i/10g, DB2, MS SQL Server.

Clustering Solutions: Veritas Cluster Server, Red hat Cluster Server, HP Service Guard, and Oracle RAC.

Storage System Software: Veritas Volume Manager, Solaris Volume Manger, Logical Volume Manager.

Back up Administration: Veritas NetBackup 4/5/6.x, Data Domain, Avamar, Netbackup.

Build and CI tools: Puppet, Chef, Ansible, Maven, Ant, Jenkins, JIRA

WORK EXPERIENCE:

Confidential

Sr.Linux /VMware/DevOps Engineer

Responsibilities:

• Responsible for the design, maintenance, scalability, and architecture of United Airline’s Big Data infrastructure from OS (RHEL 6.x/7.x/8) perspective.
• Develop python/bash scripts for automations manually performed tasks like regular health Checks, alerting tools, monitoring tool, etc.
• Experience with monitoring applications using AppDynamics & Prometheus & Grafana for monitoring and alerting application teams.
• Maintained maximum uptime and maximum performance capacity for Enterprise
• Experienced in the kick-start installations, support, configuration and maintenance of RHEL 5.5/6/7/8, and x86-64 Servers under heterogeneous environments.
• Supported technologies, such as Active Directory Federation Services, Azure Active Directory, Azure cloud migration/ deployments - Azure SQL and PowerShell
• Installed, Deployed Red Hat Enterprise Linux 6.x/7.x, CentOS and installation of packages and patches for Red Hat Linux Servers.
• Assisted in administering VMware SRM to accommodate virtual machine replication.
• Performed p2v of standalone Windows 2008/2012 R2/2016/2019 machines to virtual instances using VM converter and Platespin. .
• 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) and Linux (Red Hat6) blueprints.
• Migrated VMWARE VMs to AWS and Managed Services like EC2, S3 Bucket, Route53, ELB, EBS with OpsCode Chef Cookbooks/Recipes.
• Experienced in Red Hat Linux package administration using RPM and YUM.
• Strong understanding of infrastructure automation tooling using Docker and Ansible.
• Installation, Configuration and Administration of Web logic, Web sphere and Apache Servers in Linux and Solaris Servers.
• Deployed updates with Red Hat Satellite Server for OS upgrading and patching RedHat Linux and AIX Servers.
• Configured SSL/TLS in every application layer and configuration of mutual authentication, manually using puppet.
• Experience in System Administration, System Builds, Server builds, Installs, Upgrades, Patches, Migration, Trouble Shooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on Red Hat Linux Systems.
• Having experience with a series bioinformatics structural software including Sybyl, Discover Studio, Gromacs, Amber, Homology Model)
• Installing, upgrading, maintaining and configuring Red Hat Enterprise Linux on Servers using Custom and kick start installation.
• Worked with file/disk encryption technology/products on servers, Data Security tools, and File System Encryption.
• Installation of RPM packages to upgrade Linux packages.
• Installation, Configuration, and Administration of Web sphere and Apache Servers
• Having production experience supporting and deploying to web application servers such as BEA WebLogic, RedHat JBoss, Apache, Tomcat, and Apache HTTPD servers.
• Created Word documents for Installation Process of Application on different platform like Linux and Windows and uploaded on SharePoint. Managed Run Books for Migration and Decommission of Server (Linux and Windows)
• Tune Linux kernel using kernel parameters as requested by database administrator. Configured Kernel Parameters for Oracle database install. Conducted Linux System security and auditing and did Performance Monitoring and Tuning.
• Solaris zones configuration for application; Server Build from the scratch with CD and Automated Installation; Implemented Security Hardening per company policy; Trouble shooting system and user problems
• Performed Continuous Integration, Building and administrating using Jenkins.
• Provided administrative supports and performed branching and merging operations using GIT
• Used Bash, Perl, and Python shell scripting for monitoring and to automate the build and deployment process.
• Applied patches every quarter regularly to meet audit requirements using Oracle Ops Center, Red Hat Satellite server, Up2Date, YUM, RPM tools. Configure services running on Red Hat Enterprise Linux deployed through CloudForms and Red Hat Satellite.
• Installing RPM packages on Red hat Linux Security Servers and applying patching on RHEL 6/7/8 versions
• Performance Tuning and Management for Linux/AIX server and working with the application/ database team to resolve issues.
• Worked on Installation/Configuration/Administrated VMware ESXi 5.1/5.5 & 6.0/7.0 and migrated existing servers into VMware Infrastructure.
• Scripted Ansible Playbooks to manage configurations of AWS Nodes and test Playbooks on AWS instances other operational tasks using Ansible.
• Used CI/CD tools Jenkins, GIT, Jira, and Docker registry/daemon for configuration management and automation using Ansible.
• Worked on creating theDockercontainers andDockerconsoles for managing the application life cycle.
• Working on Ansible Playbooks for mapping of hosts to a set of roles.
• Worked with JIRA for creating Projects, assigning permissions to users and groups for the projects & Created Mail handlers and notification Schemes for JIRA.
• Applied patches every quarter regularly to meet audit requirements using Oracle Ops Center, Red Hat Satellite server, Up2Date, YUM, RPM tools.
• Scientific Fortran Programming, Molecular Dynamics simulations using Tinker and Gromacs
• Scanning the newly assigned LUNs to the serves and assigning them to volume group and increasing the file system using Red Hat volume manager.
• Mounting & un-mounting the NetAPP storage LUNs to the Red Hat Linux servers and troubleshooting the issues encountered.
• Planned and performed the upgrades on Linux and AIX operating systems and hardware maintenance on HP and POWER servers like increasing memory, disk, replacing failed hardware.
• Provide drill down reporting for application teams to use in monitoring their application resource usage/performance.

Confidential

Linux /VMware Engineer (Automation)

Responsibilities:

• Configured an AWS Virtual Private Cloud (VPC) and Database Subnet Group for isolation of resources within the Amazon RDS Oracle DB cluster. Implemented CI/CD pipeline using Jenkins, Ansible Playbooks and Ansible Tower.
• Migrating present Linux environment to AWS by creating and executing a migration plan, deployed EC2 instances in VPC, configured security groups & NACL’s, attached profiles and roles using AWS Cloud Formation templates and Ansible modules.
• Implemented CI/CD pipeline using Jenkins, Ansible Playbooks and Ansible Tower.
• Trouble shooting missing jsp pages and blank pages in hardware Load Balancer environment.
• RADIUS, Diameter, ftps, HTTPs SS7-Sigtran) Linux and Networking Protocols (OSPF, IS- IS, BGP, MPLS, EIGRP, RIP, TCP/IP, OSI model, UDP, ARP).
• Experienced in migrate an On-premises Instances or Microsoft Azure Classic Instances to Azure ARM Subscription with Azure Site Recovery. Configure services running on Red Hat Enterprise Linux deployed through CloudForms and Red Hat Satellite.
• Created, managed and performed container-based deployments using Docker images containing Middleware and Applications together and Evaluated Kubernetes for Docker container orchestration. Worked on containerizing Openstack services in Docker using ansible.
• Strong use of Shell scripting languages including BASH for Linux.
• Add project users to theAzureaccount with multifactor authentication enabled and least privilege permissions.
• DesignedAzureARM Cloud Formation templates to create custom sized VPC, subnets and NAT
• Installing, Upgrading, Patching, Configuring and Administrating (Red Hat Linux) RHEL 5, 6, 7, OVM, CentOS 6.X using Kickstart, Jumpstart, custom configuration like package management, volume management of servers.
• Setting up Red hat cluster with 3 nodes for Production application and maintenance of cluster.Worked on Multi-pathing for Red hat cluster
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Installed, managed and deployed Linux RedHat Enterprise, HP-UX, Ubuntu, CentOS and installation of packages and patches for Red Hat Linux Servers. Mass Build of Linux/Solaris OS servers using Kickstart /jumpstart automation application.
• Created EC2INSTANTCES on AWS. Experience in writingAnsibleplaybooks to automate the given process.
• Expertise in implementing the Configuration Management Tools like Chef, Puppet andAnsible
• Installed and configured DHCP Client/Server. Managing the configurations of multiple servers usingAnsible.
• UsedAnsibleto document all infrastructures into version control. UsedAnsibleto document application dependencies into VC
• Installation of Oracle 11g and Sybase open-client, Apache 2.x on Linux environment.
• Creating and cloning virtual machines in VMware environment using Virtual Infrastructure client 4.x and 5.5.
• Actively monitor, research and analyse ways in which the services inAWScan be improved.
• Launching Amazon EC2 Cloud Instances using Amazon Images (Linux/Ubuntu) and Configuring launched instances with respect to specific applications. Experience in migrating databases to Amazon Web.
• Closely worked with various application development teams to deployed J2EE applications (WAR, EAR and JAR files) in WebSphere, Weblogic, Jboss/Wildfly andTomcat.
• Installation and maintenance ofAIXSystems. Administration ofAIXOperating Systems.
• Patch Management, Package Installation/Upgrades and Kernel upgrades.
• Experienced in Technical and troubleshooting skills with relational databases (Postgres, MySQL).
• Configuring multipath, adding SAN and creating physical volumes, volume groups, logical volumes.
• Installed/Configured the WebSphere server, JBoss application server, WebLogic server; Managed tuning and performance of high profile applications (peoplesoft, SAP) running on them.
• Software package and patch administration, involving adding and removing software packages and updating patches.
• Created the AWS VPC network for the Installed Instances and configured the Security Groups and Elastic IP's accordingly.
• Responsible for provisioning, maintaining and improving upon server infrastructure, split between physical data centers
• Administration of Web Application Servers and performing tunings for better performance.
• Performed OS, Network tunings on the Apache and Nginx web servers.
• Installation Red hat Linux 5.x, 6.2 and 6.3, 7.0, upgrade of and Linux operating system. Configuring DNS, DHCP, NIS, NFS in Sun Solaris 8/10/11& other Network Services.
• Management and monitoring of various services using Service Management Facility and Service Administration.
• Implementation and administration of VMware ESXi 5.x, 6.0 vCenter for running Redhat Linux, windows Servers on Production and Development.
• Experience with application servers such as Tomcat or Web Sphere Application Server Community Edition
• Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Performing Failovers in HACMP / cluster environment, monitoring servers using solarwinds, .
• Experienced in maintenance and troubleshooting ofHACMP 5.3/5.4and Performed HACMP Failover.
• Experience in configuring Kick Start servers to initiate installation of RedHat Linux on several machines at once.
• Create status reports, project plans and attend team meetings to coordinate activities.
• Created Bash, shell, ruby, perl& python scripts for various Systems Administration tasks to automate repeated processes.
• Giving Customer support for DB2 and WebSphere Users on AIX and Linux servers Performance Tuning and Management for Linux/AIX server. Installed SQL Servers 2008 and 2012, and various databases (oracle, mysql)
• Installation of Redhat Linux, Suse and Sun Solaris, kick start & Jump start.And Installation through Satellite Server, CF engine.
• Worked on Installation/Configuration/Administrated VMware ESXi 5.1/5.5 & 6.0/6.5 and migrated existing servers into VMware Infrastructure and Administration and troubleshooting of HACMP clusters.
• Worked with new Jenkins plugins and implemented them to improve build process.
• Configured Jenkins for integrated source control, builds, testing, and deployment.
• Creating the file systems using Red Hat volume manager and performing the health check on regular basis for all Linux servers.
• Configuring DRS, HA & Resource Pools in ESXi 5.5 and 6.0. &Deployment of VM’s through PowerShell scripts.
• Updating and patching ESXi servers, Virtual Center servers using VMware Update manager.

Confidential

Linux /VMware System Admin

Responsibilities:

• Installed, maintained, and upgraded RedHat Linux and Solaris Servers using kickstart based network installation.
• Building software packages on Red Hat Linux (RPM) and Solaris (Data stream package format. Installed and implemented NAS with RAID 1 and RAID 5 configurations.
• Patching the servers for Oracle install which include different required RPM installation on the servers. LDAP, SSL integration, which require communication with LDAP team. Handling a JBOSS application server PPM application and Quality Center.
• Plan and Schedule the Online/Offline Backups. Database and Log Backups & Restoration, Backup Strategies, Scheduling Backups. Backing up master &File System management include in-built volume managers and mainly VERITAS Volume Manger
• Configuration and maintenance of NIS, NFS, DHCP and DNS Servers on Solaris.Administrative tasks such as System Startup/shutdown, Backup start, Wrote tools in Perl to login & interrogate Sun ILOM & XSCF & HP ILO via SSH and telnet.
• Wrote tools in Perl & shell to run parallel SSH connections to remediate configs & QA on several thousand hosts.
• Maintained several hundredLINUXservers running RHEL on HP and Dell hardware. It includes Application servers, database servers, web servers (Apache). Installed and upgraded software packages using YUM and RPM.
• Set up and configured a YUM local repository server for Dev environment.
• Established an NFS server using AUTOFS in order to have automated access to NFS server shared mount point.
• Created various cron jobs using crontab in order to schedule certain tasks.
• Configured and maintained the volume groups, logical volumes using LVM, VERITAS Volume Manager and Solaris Volume Manager.Performed High availability designing using VERITAS Cluster Server 5.0 on Redhat Linux and Solaris Servers.
• Performance tuning by configuring JVM arguments, JDBC connection pooling & caching.
• Configuration and upgradation of Linux, Solaris and AIX Operating Systems.
• Responsible for upgrades to RedHat Linux with Software packages, patches and maintained them in accordance with established policies, procedures and service level agreements. Experience in building Linux virtual servers by using VMware ESX 4.
• Experienced deploying VMs using VMware templates. Installation, Configuration & Upgrade of Linux, Solaris, AIX and Windows operating system.
• Experience in creation of environments on virtual machines to be handed over to development and QA teams.
• Installed, configured and maintained Web and Application Servers including Apache, tomcat and jboss.
• Good experience in installation/upgradation of VMware ESXi 4.1
• Maintaining the CPU & Memory utilization of Servers reports on the WEB.
• Administrated server consolidation program through use of VMware ESX server and VMware Virtual Center, using Virtual Center, ESX, creating VMs, using/building VM templates and customization files and scheduling tasks.
• Created disk groups, volumes with RAID architecture and layered volumes using VxVM.
• Performed automated installations of operating systems using Jumpstart for Solaris, and Kickstart for Linux.
• Managed Veritas Cluster Server configured new service group & resources for new application in Veritas Cluster Server.
• Performance monitoring and performance tuning using top, prstat, vmstat, ps, iostat etc.
• Configuring Network Printers.Creating, configuring and Troubleshooting (Local user Account, Domain user Account, Organization unit, Group policy, Ownership files & folder permissions and share permissions.
• Creation, Management & Administration of Active Directory user/Application accounts and groups inwindowsServer 2003.Troubleshooting file and folder access issues onWindows2000 andWindows2003 servers.

Confidential

System Administrator

Responsibilities:

• Administered several LINUX/UNIX servers running Red hat Linux 4/5/6, and Virtual machines hosted on ESXi servers.
• Installed and configured Red Hat Linux, Solaris operating system using kickstart, Jumpstart.
• Administering & Managing Apache webserver and Tomcat servers cluster Infrastructure, Code Deployment coordination.
• Linux Administration Level 3 support, Cams Policy Server Administration, NetBackup, Configuration, Node management with Puppet, F5 and Kickstart automated installs.
• Administration of RHEL 5 which includes installation, configuration, testing on both physical and virtual machines.
• Acquired comprehensive requirements from Project Managers, Team Leads pertaining to the servers to be migrated.
• Expert in Datacenter Operations including hardware, software setup monitoring, troubleshooting on a 24 x 7 basis with Tivoli monitoring tool, Remedy, and HP
• Supported a major initiative to migrate SAN storage utilized by Solaris, Linux andAIXservers (typically large Oracle data bases, web and application servers). Cluster Monitoring using Groundworks, Splunk, Nagios Troubleshooting OS issues.
• Excellent in patches and packages installation on Linux/Unix Enivronment
• Build, configure and deploy Virtual machines and templates.
• Hands on experience in configuring ESX, ESXi and vSphere4 with virtual center management.
• Took part in VMware ESX (3.5,4.1) installation, updates, patches, and gathered information for capacity and performance analysis to identify potential servers for virtualization. Experience in Linux kernel configuration.
• Updating YUM Repository and Redhat Package Manager (RPM).
• Monitored Linux server for CPU Utilization, Memory Utilization, and Disk
• Setting up cron schedules for backups and monitoring processes.
• VMware Infrastructure 5.x Installation & Configuration.
• Automated server building using System Imager, PXE, Kickstart and Jumpstart, for Solaris and RHEL Servers.
• Expert in Upgrades, installs, configuration and administration security and monitoring tools on Linux.
• Involved in developing custom scripts using Python, Perl & Shell (bash, ksh) to automate jobs.
• Provided L2 support, 24x7 on-call / Remote Support for Linux Production Problems on weekly rotation basis.