SUMMARY

• Very strong proven experience as a Linux administrator on Redhat EL 5.x 6.x, 7.x Debian, CentOS 4.x, 5.x, Suse 9, 10, 11 & 12, Oracle Enterprise Linux 6 & 7 Solaris 8, 10 and VMware vSphere ESX/ESXi 5.x, 6.x environment.
• Installation, configuration, system maintenance, and data - migration on Solaris/Linux servers.
• Virtualization of an operating system, servers and network resources. (Ldom, zone)
• Disk space and File system management using VERITAS Volume Manager, Solaris Volume Manager, Logical Volume Manager LVM and RAID Volume Management.
• Performed automated installation of Operating systems using kickstart for Linux and Jumpstart for Solaris.
• Experience in Linux Systems administration including Filesystem Management, Local Security Implementation, Software Management, and Shell scripting.
• Extensive experience in Linux performance monitoring by using top and prstat and load balancing, security setup, and troubleshooting.
• Implemented multipleCI/CDpipelines as part of DevOps role for on-premises and cloud-based software usingJenkins, Chef, and AWS/Docker.
• Experience in migration of On-Premises RHEL and Windows servers to cloud platforms including AWS EC2 and Azure.
• Experience working wif Red Hat GFS and VERITAS Cluster File systems
• Experience in administration and maintenance of application services like DNS, DHCP, FTP, LDAP, and NFS.
• Experienced in installation of Operating Systems, Packages, and Patches, adding Peripheral, maintaining user accounts, System Security, backup/recovery, performance tuning, and troubleshooting at various levels.
• Strong analytical, diagnostics, and troubleshooting skills to consistently deliver productive solutions, wif debugging an operating system issue in a Linux system.
• Experience in dealing wif Windows Azure IaaS - Virtual Networks, Virtual Machines, Cloud Services, Resource Groups, Express Route, VPN, Load Balancing, Application Gateways, Auto-Scaling, and Traffic Manager.
• Installation and configuration of RedHat NetworkSatellite Server
• Experience configuring Firewall and security using SSL, IP tables, and TCP Wrappers.
• Filesystem creation, system security, and troubleshooting on server related issues.
• Provide support for server-side applications (Web sphere and Oracle server based applications, web server based applications).
• Extensive experience in VMware ESXi 5.1/5.5/6.0, vCenter Server, Host Clustering wif HA, DRS, Replication Manager 5.x/6.0, Site Recovery Manager, vMotion, Physical to Virtual Migration and Managing SAN Data stores wif, iSCSI, NFS & FC.
• Expertise in performance resource monitoring tools wifSplunk,Nagios core and XI, tuned wif teh services likessh, disk space, check memory, ftp.
• In-depth knowledge on Amazon EC2, S3, Simple DB, RDS, Elastic Load Balancing, SQS, and other services in teh AWS cloud infrastructure such as IAAS, PAAS and SAAS.
• Experience in administering VMware Infrastructure Client 3.5 vSphere 4.0, 5.x & 6.0 and Preboom -Experience in administering RedHat Enterprise Virtual Environment (RHEV)
• Experience in Creation and managing user accounts, security, rights. Disk space and process monitoring in RedHat Linux *Experience in configuration of NFS.
• Experience in setting up Amazon EC2 cloud instances Amazon Images (Linux/Ubuntu), and Configured Inbound/Outbound in AWS security groups.
• Utilize Cloud formation andPuppetby creating DevOps processes for consistent and reliable deployment methodology.
• Expert in Server Builds, Installs, Upgrades, Patches, Configuration and Performance Tuning in Red Hat Linux/Windows Server 2003/2008 on VMware virtualized environments.
• Participate in project development as required providing project plans, documentation and training material as necessary.
• Major focus onConfiguration, SCM, Build/Release Management,Infrastructure as a code (IAC)and asAzure DevOpsoperations Production and cross platform environments.
• Experience inOracle RACclustering.
• Ability to work in high pace environment wif demonstrated strength in customer satisfaction.
• Installed and configured wireless networking equipment, network software, including security or firewall software, ensuring integration wif existing network systems.
• Experience in monitoring tools likeNagios, Splunk and Syslog.
• Associated wifDBAs, OBIEE, IAM, BRM, BI, OAMfor installation of Oracle database on Linux servers
• Experience in scheduling jobs and administrative task using crontab. -Creating
• Linux Virtual Machines using VMware Centre.
• Excellent scripting skills in UNIX Shell, Perl and python.
• Strong written and oral communication skills-Leadership Skills-Excellent

TECHNICAL SKILLS

Hardware: Sun Fire servers, T-series (T3, T4, T5) M-series (M3K, M5K, M-10), Splunk, HP servers.

Databases: Oracle, MySQL, PHP, Linux OS, Microsoft ADProtocols DNS, SSH, SMTP, NFS, TCP/IP, HTTP, FTP, UDP, Routing Protocols.

File System: UFS, ZFS, EXT, VXFS, XFS

Languages: Unix Shell Scripting

Web Application Server: Apache server, Apache Tomcat, WebSphere, WebLogic

Virtualization Tools: VM ware, Virtual Box

Monitoring Tools: Nagios, HP open view

Open source: Puppet, Ansible, Dockers, Kubernetes, Chef, etc.

PROFESSIONAL EXPERIENCE

Confidential - NYC, NY

Senior Linux System Engineer

Responsibilities:

• Installation, configuration, and upgrade of Linux,and Solaris operating systems.
• Responsible for upgrades to Red hat Linux wif software packages, patches and update kernel on RHEL 5. x,6.2 and 6.5 servers using RPM, YUM and maintained them in accordance wif established policies, procedures and service level agreements.
• Installation, configuration and upgrade ofRedhat Linux 3/4/5/6, Oracle Linux 5/6 Cent OS5.7 operating systems.
• Worked on solaris 10 container technologies, created zones and installed applications on separate responsible for configuring and maintaining global and local zones.
• Administration, Installation, Configuration, troubleshooting and Performance tuning ofLinux distributions such as Red Hat EnterpriseLinux, CentOS, OEL.
• Managed different on-premises infrastructure resources including Cisco UCS, HP C7000, VMs and even Docker containers and different Cloud service providers like AWS and Azure.
• Extensive experience in UNIX performance monitoring and kernel tuning and Load balancing (F5 Load Balancer) to ensure stable performance.
• Worked in anagiledevelopment team Devops to deliver an end to end continuous integration/continuous delivery product in an open source environment using tools like Confidential & Jenkin
• Performed installation, configuration, upgrades, Package administration and support for Linux systems on client side using Redhat satellite network server.
• Developed automation scripting in Python core using Puppet to deploy and manage Java applications across Linux servers.
• Installed, configured python in linux machines and automated many jobs using python scripting
• Installation, configuration and upgrades on Red HatLinux4.x, 5.x and 6.x, 7.x.
• Performed automated installations of Operating System using Jumpstart, Kickstart forLinux.
• Responsible for upgrading Critical patches and development, pre-production and production environment systems asLinuxdistributor server.
• Experienced Cloud and DevOps engineer in Automating, Configuring and deploying instances on AWS, AZURE Cloud environments and Data centers.
• Utilized Redhat Satellite Server for kickstarting VMware virtual servers wif teh Redhat RHEL 5/6/7 OS Versions.
• Expert in troubleshooting Cluster Load Balancing and High Availability Environments
• Configured Kickstart Servers and booting teh images using PXE in Red HatLinux.
• Installed, monitored RHEL, OEL servers using Xymon.
• Monitor Performance on Red Hat EnterpriseLinux4/5/6/7.
• Manage systems using remote consoles like ILO for HP and DRAC for Dell Hardware.
• Managed Disks and File systems using LVM onLinux, Kernel patching.
• AdministeredLinuxservers for several functions including managing Apache/Tomcat server, mail server, My-SQL database, and firewalls in both development and production.
• Associated wifDBAs, OBIEE, IAM, BRM, BI, OAMfor installation of Oracle database on Linux servers for tuning, backup and restore.
• Knowledge of Logging and APMDevOpstoolsAppDynamics, Zabbix, Splunk, ELKandGrafana.
• Maintained and developed Docker images for a tech stack including Cassandra, Kafka, Apache, and several in house written Java services, running in Google Cloud (GCP) on Kubernetes.
• Experience in creating Docker Images and in Kubernetes container platforms.
• Involved in developing custom scripts usingPython, Perl Shellbash, ksh to automate jobs.
• Installation, configuration and administration of Veritas cluster server, Apache, samba, Web Sphere & Web Logic Application Servers. Configured new service group and resources for new application in Veritas Cluster server.
• Adding Oracle ASM disk to teh server. Creating managing volumes using LVM.
• DevOps role converting existing AWS infrastructure to Server-less architecture (AWS Lambda, Kinesis) deployed via terraform.
• Performed automated installations of Operating systems using Jumpstart for solaris and kickstart for Linux.
• Expertise in configuration of NIS, NFS, DNS, DHCP, FTP, LDAP and web servers.
• Created disk groups, volumes wif RAID architecture and layered volumes using VxVM.
• Monitoring system resources, logs, disk usage, scheduling backup and restore.
• Performed upgrades of Packages and Patches in Oracle Linux and Linux
• Installed and configuredOracle Real Application Cluster RACon Linux Servers. Creation and scheduling cron jobs for backup, system monitoring and removal of unnecessary files.
• Extensively worked on hard disk mirroring and stripe wif parity using RAID controllers.
• Experience in building Linux servers by using VMware ES X 5.0.
• Worked wif CI/CD system wif Jenkins on Kubernetes container environment, utilized Kubernetes and Docker for teh runtime environment for teh CI/CD system to build, test and deploy.
• WritingSPLUNK Queriesto generate teh report.
• Wrote shell, perl, python, ruby scripts to automate daily repetitive activities.
• Troubleshooting Backup and Restore Problems Creation of LVMs on SAN using Linux utilities, monitored overall system performance, performed user management, system updates and disk and storage management.

Environment: Solaris 9/10, Linux RHEL 6/7, T-series and M-series servers, Dell and HP servers, NFS, VxVM, shell scripting, Apache Web server.

Confidential - Alpharetta, GA

Sr. Linux System Admin

Responsibilities:

• Installation, configuration, administration of RHEL 6/7 and solaris 8/10 using kickstart, Jumpstart, custom configuration like package management, volume management of servers.
• Hands on knowledge in teh deployment, configuration and optimization of vmware technologies including vc center server, ESXi, virtual networking and Worked on enabling SELinux for Ansible.
• Involved installation and managing different automation and monitoring tools on Redhat Linux like Nagios, bash and python scripts.
• Monitoring and analysis of systems performance onHP-UX,Solaris, andRed Hat Linux serverssupporting Oracle, Progress Databases and several other middle-tier applications
• Setup and Configured Red Hat Satellite and Foreman/Kickstart Servers for Red Hat Enterprise Linux/CentOS 5/6/7 installs, maintain repositories and leveraging Ansible for patching cycle across all environments (DEV, STAGE, and PROD) both on-prem and AWS/Azure.
• Supporting Database environmentsOracle,DB2.Provisioning andBuild /ReleaseLinux servers both Physical and Virtual usingVmware.
• Utilize Cloud Formation and Puppet by creating DevOps processes for consistent and reliable deployment methodology
• Developed automation and deployment utilities Devops using Ruby, Bash, Power shell, Python and Run deck.
• Maintained software packages on servers using RHEL Satellite and Repository servers.
• Creating, installing, and configuring Zones, LDOMs in Sun Solaris 10.
• Install, configure and manage HA/Load Balancing Red Hat Cluster.
• Experience in Managing Systems using Red Hat Satellite and CentOS Spacewalk Server
• Having good knowledge about Veritas volume system, Solaris volume system and logical volume manager.
• Technical and troubleshooting wif relational database (MySQL, Sysbase).
• Understand teh latest features like (Azure DevOps, OMS, NSG Rules, etc..,) introduced by Microsoft Azure and utilized it for existing business applications
• Monitoring, traffic tracking and trend analysis using Network Management Tools Splunk, SiteScope, Insight Manager.
• Installation, configuration, support and security implementation on following services: DHCP, SSH, SCP.
• Configuring SUDO and granting root users for performing certain activities.
• Troubleshooting backup and restore problems and constant monitoring of system performance.
• System Administration and Support of UNIX and Linux servers.
• Scripted in python to deploy and manage applications.
• Installation and configuration forOracle RACclusters using Veritas andOracle ASM.
• Monitored servers for CPU Utilization, Memory Utilization, and Disk Utilization for performance monitoring.
• Setup NFS Filesystem, configuration of DNS, and more about autofs.
• Systems administration, maintenance, and monitoring various day-to day operations.
• Performed day-to-day troubleshooting for teh end users on Solaris based application.

Environment: Solaris 9/10, RHEL6/7, SUN Enterprise Servers, VERITAS Volume Manager 4.x, Shell scripting, Web logic, python, Tomcat.

Confidential - Malvern, PA

LINUX System Administrator

Responsibilities:

• Installation & Configuration of Red Hat Enterprise Linux, Fedora Linux and CentOS, Maintenance & System Administration.
• Responsible for teh operation, maintenance and integrity of a distributed networked Linux environment.
• Managing package install/upgrades using YUM and RPM and Setup and configured TCP/IP network on LINUX and AIX.
• Created Azure services using ARM templates (JSON) and ensured no changes in teh present infrastructure while doing incremental deployment.
• Exposed to all aspects ofSoftware Development Life Cycle (SDLC)such as Analysis, Planning, Developing, Devops Testing and implementing and Post-production analysis of teh projects wifAgile Scrum, Waterfall and V model.
• Designing and implementing for fully automated server build management, monitoring and deployment By Using DevOps Technologies like Chef.
• Used Azure Kubernetes Service to deploy a managed Kubernetes cluster in Azure and created an AKS cluster in teh Azure portal, wif teh Azure CLI, also used template driven deployment options such as Resource Manager templates and Terraform.
• Experience in building custom searches and visualizations in both Splunk Core andSplunkITSI
• Create a Virtual Network on Windows Azure to connect all teh servers.
• Linux Administration,Kubernetes Administration, Deploying Dockerized Custom Applications maintenance.
• Strong understanding of Red Hat Satellite 6.3 Infrastructure to manage hundreds of RHEL7 servers.
• Lead and mentor Systems Administrators how to automate monthly patching in large scale systems using Satellite 5.7 and 6.3 Configuration management tools
• Installation of Kubernetes, Docker. Docker compose, Docker Swarm and BugID Containerized application comprising of tomcat, Nginx, Hadoop, Node JS.
• Building new servers wif Red Hat Linux and configuring Oracle 10g databases.
• Patch/upgrade OS and software on Red Hat Enterprise 5.x, 6.x and 7.x using RedHat Satellite server.
• Extensive experience in Linux performance monitoring and kernel tuning and Load balancing.
• Worked on Docker Networking, Docker swarm Service Discovery and kubernetes orchestration for java based applications.
• Performed automated installations of operating systems using jump-start for Solaris and kickstart for Linux server.
• Creating teh file system, exporting, importing file systems, tuning, growing, shrinking, using Veritas File system.
• Creating and routing of tickets for configured Logical Volume Manager which involved create and modify file system, logical volume, physical volume, Volume groups, mirroring and UN-mirroring of volume groups.
• Back end solution, Day to day system Admin & Monitoring, File system management and disk management.
• Experience wif ticketing tool such as Remedy
• Experienced wif using Oracle RAC for clustering and high availability in Oracle database environments.
• Installing, upgrading and configuring REDHAT Linux ES 4.x/5.x using KICKSTART installation.
• Implementation and troubleshooting of network services like NFS, FTP, NTP, telnet, SSH.
• Performed application installation and management on Unix and Linux servers.
• Installing of Linux System and Windows Systems.
• Provided customer support, halp/troubleshoot users to resolve server, network and other system wide problems.

Environment: Solaris 9/10, RHEL 5/6/7, SUN servers T-series and M-series servers, Dell and HP servers, shell scripting, NFS, Veritas suite.

Confidential - Atlanta, GA

Systems Administrator

Responsibilities:

• Installed, optimized, and configured new servers and application upgrades in teh existing network environment as per requirements.
• Create a Virtual Network on Windows Azure to connect all teh servers to SQL Azure.
• Configured (data migration, filesystem creation, system security).
• Installing, maintaining, upgrading, and supporting Redhat Linux systems w/ Oracle 10G RAC wif Cluster Ready Services CRS and Sybase database.
• Developed an automation system using PowerShell scripts and JSON templates to remediate teh Azure services
• Converted .Net application to Microsoft Azure Cloud Service Project as part of cloud deployment.
• Worked on DevOps tools like Jenkins, Maven for Build Management and puppet, chef and Ansible for Configuration Management SVN/GIT for Version Control and Nagios, and splunk for Monitoring and Log Management.
• UsedJenkins pipelinesto drive all microservices builds out to theDocker registryand then deployed toKubernetes, CreatedPodsand managed usingKubernetes
• Implemented automated local user provisioning Devops in instances created inConfidential.
• Performed troubleshooting and provided resolutions for server and internet problems.
• Maintained teh timely backup of important data and management resources.
• Implemented proper recovery procedures for disasters and administer user-account, mailbox.
• Monitored servers for CPU Utilization, Memory Utilization, and Disk Utilization for performance monitoring.
• Administration in Solaris/Veritas Volume Manager.
• Azure VMs, Networking (VNets, Load Balancers, App Gateway, Traffic Manager, etc.)
• Kubernetesis being used to orchestrate teh deployment, scaling and management ofDockerContainers.
• Installing and setting up Oracle9i on Red Hat Linux for teh development team
• Wrote various UNIX shell scripts.
• Member of teh Technical Design team, Build splunk and Release Module for Development of new products.
• Used Auto-scaling and Elastic Load Balancer features on EC2 instances to serve teh end users using applications during unexpected traffic/demand.
• Used Ansible and Terraform as DevOps tools and Git as SCM tool to automate teh deployment of infrastructure.
• Use Red Hat Satellite to remotely deploy updates and patch security vulnerabilities.
• Server Virtualisation using Solaris Containers (zones) and VM ware.
• Configuring distributed file system and administering NFS server and NFS clients and editing auto-mounting mapping as per system/user requirements.
• Performed day-to-day troubleshooting for teh end users on Solaris and Linux based application.
• Product development and administration of managed services, dedicated Linux servers, and web hosting platforms.
• Installation of Oracle Patches and Troubleshooting, Creating and modifying application related objects, Creating Profiles, Users, Roles and maintaining system security.
• Managed physical and logical volumes, Volumes Groups, using Logical Volume Manager.
• Implemented file sharing on teh network by configuring NFS on teh system to share essential resources.

Environment: Solaris, Linux, Jumpstart, SANDBANK, RAID, NFS, VERITAS Suite, Oracle, Apache, Zones, VM ware, Sun Fire servers- V490, V880, T2000, M5000, VM ware.