SUMMARY

• 10+ years of experience in a Unix/ Linux environment.
• Experience with Linux servers in virtualized environments.
• RedHat Enterprise Linux installation of virtual and physical servers (RHEL 6, 7)
• Install and configure Apache on RedHat/UNIX servers
• Performing Unix configuration changes and software installations
• Involved in loading data from UNIX file system to HDFS.
• Linux (RedHat 6/7) UNIX System, IBM AIX, Server Installations, configurations, upgrades and migrations on Linux and AIX.
• Supported CIS and Engineering organizations with various flavors of Unix and Linux
• Installed, configured and migrated all Unix servers
• Secured and patched UNIX servers
• Developed High Availability and Disaster Recovery for UNIX environment.
• Strong Scripting skills in Bash, PowerShell, Perl, YAML, Json, Ruby and Python scripts to automate the deployments and for environmental changes.
• Developing scripts for build, deployment, maintenance and related tasks using Jenkins, Docker, Maven, Python and Bash.
• Responsible for continuous integration (CI) and continuous delivery (CD) process implementation - using Jenkins along with python and shell scripts to automate routine jobs.
• Experienced in implementing Splunk, Puppet, Chef, DevOp.
• Experience configuring and managing Puppet master server and also experience in updating and creating modules and pushing them to puppet clients.
• Implemented automation tools such as Splunk, Puppet, Chef and DevOps
• Created Python scripts to automate AWS services which include web servers, ELB, Cloudfront distribution, databases, security groups and application configuration.
• Involved in maintaining and editing Python scripts for application deployment automation.
• Wrote serverless applications (Lambda functions) in python, node.js to perform various transformations and analytics on large data sets in EMR clusters.
• Configured NFS resources on RHEL 6 & 7 and UNIX
• Hands on experience on Azure VPN-Point to Site, Virtual Networks, Azure Custom security, Endpoint Security, firewall, Windows Azure name resolution, Scheduler, Automation and Traffic Manager.
• Work experience in Azure App & Cloud Services, PaaS, Azure Data Factory, Azure SQL Data Warehouse, Power BI, Azure Blob Storage, Web API, VM creation, ARM Templates, PowerShell scripts, IaaS, Lift & Shift, Storage and database.
• Managed servers on the Microsoft Azure Platform Azure Virtual Machines instances using Puppet Configuration Management. Created Puppet manifests, profiles and roles modules to automate system operations.
• Creating and maintaining containerized micro services and configuring/maintaining private container registry on Microsoft Azure for Hosting Images and using Windows Active Directory
• Reconfigured all ESX network connectivity utilization VLAN tagging and teaming.
• Experience in supporting Windows Cluster server running 2-4 nodes on Windows 2003/2008 & 2012 supporting applications like web servers, SharePoint and Active Directory environment
• Build VMware vSphere hosts and added to new/existing VMware Clusters on Wintel Stack and involved in the Data Centre Transformation.
• Migrated the VMs to a Linux KVM / libvirt environment utilizing a CEPH storage cluster Wrote Automation scripts automate the provisioning of Azure resources like Virtual Machines, Virtual Networks, Traffic Manager, Storage, Service Bus and Scheduler make calls to Puppet scripts that provisioning / configuration of servers on the instances.
• Experience in using Docker and setting Azure Container Registry with Docker and Docker-compose and actively involved in deployments on Docker using Kubernetes.
• Performs hands on configuration and management of AWS services via the dashboard and CLI console. Work with development, security and operations teams to provision AWS resources as needed to support application requirements.
• Develops and supports tools to facilitate automated management of AWS services and integration with existing management tools where appropriate.
• Installed and introduced onto the network Centos 6.10, Centos 7.6, RedHat 6.10, RedHat 7.6, RedHat
• Maintained user account management, configured servers to register with Redhat Network (RHN), monitored servers - workload assessment, service console monitoring
• Experience in monthly Patching event for Production and Non-Prod Linux severs through Redhat satellite, monthly patches channels
• Installed and configured several Redhat Enterprise Linux in both Physical Blade utilizing Kickstart and VMWare EXSi 5.0 virtual environment
• Converted our staging and Production environment from a handful of AMI's to a single bare metal host running Docker.
• Used Docker to virtualize deployment containers and push the code to EC2 cloud using PCF. Built additional Docker Slave nodes for Jenkins using custom built Docker images and instances.
• DevOps Practice for Micro Services using Kubernetes as Orchestrator.
• Kubernetes is used to orchestrate the deployment, scaling, management of Docker Containers.
• Automated the deployment of applications inside software containers and Configured Docker container for branching purposes.
• Administer and migrate data on RHEL5,6 & 7 and UNIX servers
• Manage file systems like LVM, LVM extension & reduction on RHEL
• Provide support that can resolve incidents tickets and change request with RHEL5/6/7 related issues
• Install and configure RHEL on HP DL385-DL585 servers
• Experienced with Linux Variants; RHEL, CentOS, Ubuntu.
• Redhat Package management using Yum and RPM.
• Created Cron jobs as needed and Systems backup for RedHat Enterprise Linux, Centos based environments
• Worked across both private (OpenStack) and public clouds (Amazon AWS).
• Debug and resolve Pre-Post OpenStack deployment failures.
• Installation and configuration of OpenStack Keystone, Glance, Nova, Neutron, Horizon, Cinder, Heat
• Installation and configuration of OpenStack on Cent OS 7.
• Experience in networking protocol TCP/IP, LAN, FTP, TFTP, NFS, DHCP, SMTP, POP, IMAP, NTP, HTTP so on.
• Remote administration and system configuration through scripting, Linux CLI
• Installed and responsible for GIT software version control for client environment. configuration of RedHat to fit security compliance using STIG, CRISP, SCAP
• Responsible for installing, configuring, and maintaining RedHat LINUX /UNIX operating systems
• Linux systems administration skills with emphasis on RedHat Enterprise Linux or Oracle Enterprise Linux
• Was working on integrating Puppet with new REDHAT satellite server.
• 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.

PROFESSIONAL EXPERIENCE

Sr. Linux/Unix System Engineer

Confidential

Responsibilities:

• Installation, configuration, Upgradation, Migration & Maintenances of the Linux and UNIX Operating Systems.
• Manage file systems like LVM, LVM extension & reduction on RHEL /UNIX
• Provide support that can resolve incidents tickets and change request with RHEL5/6/7 and UNIX related issues
• Install and configure RHEL on HP DL385-DL585 servers
• Experienced working with Linux Variants; RHEL, CentOS, Ubuntu.
• Redhat Package management using Yum and RPM.
• Created Cron jobs as needed and Systems backup for RedHat Enterprise Linux, Centos based environments
• Performed the automation using Puppet Configuration Management (PCM) developing manifests that would automate most of dev/prod environment.
• Implemented automations tool Puppet, DevOps monitoring tools in cluster node environment.
• Responsible for effective provisioning, installation/configuration, operation, and maintenance of systems / software ( Linux/Unix, Windows, LAN ) for local office.
• Perform software installation, upgrades/patches, troubleshooting, and maintenance on remote UNIX/ LINUX servers for corporate office.
• Accountable for: Unix/Windows systems and related servers, VMWare ESxi, Netbackup applications, networking hardware, Unix Administration, Unix operating systems/servers.
• Provide Tier III/other unix support per request. Investigate and troubleshoot engineers environment issues etc.
• Supported Sungrid ( Oracle Grid Engine ) for engineering environment, unix deployment (Puppet, script)
• Actively involved in Disaster Recovery and Business Continuity testing in the UNIX environment
• Veritas cluster administration, Veritas Storage provision and other High Availability techniques in the UNIX environment
• Implemented continuous integration and build tools using Ant, Jenkins, chef, Puppet full automation
• Installed and configured an automated tool Puppet that included installation and configuration of Puppet master, agent nodes and an admin control workstation.
• Wrote modules for Puppet and good understanding analysing manifests.
• Scripting in multiple languages on UNIX, LINUX and Windows - Bash, Python etc.
• Used Python scripting for automation, highly scalable, build promotions for staging to production.
• Remote administration and system configuration through scripting, Linux CLI (Bash, Perl, Python), SaltStack (Puppet), and Rackspace (OpenStack) console.
• Designed, wrote and implemented Python script for taking automatic EBS snapshots of EC2instances. Installed/Configured/Managed chef Master/Agent.
• Wrote python scripts using Boto3 to automatically spin up the instances in AWS EC2 and OPS
• Designed Puppet Modules to manage configurations and automate installation process and developed automation scripting in Python using Puppet to deploy and manage Java applications across Linux servers.
• Worked with various scripting languages like Shell, Ruby and Python.
• Installed and configured WebSphere Application Server v8.5 in a Network Deployment fashion utilizing both vertical and horizontal Clustering across multiple machines on RED HAT LINUX using the Profile creator for creating DM profile and Custom Profiles.
• Migrate systems from RHEL 6 and VMware environment to RHEL 7
• Installing, upgrading and configuring RedHat Linux 6.x, 7.x using Kickstart servers and Interactive Installation.
• Building and configuring RHEL servers
• Worked on Apache tomcat and Weblogic Server configuration and implementation etc.
• Configured and Administered Apache, VSFTPD services, MYSQL and Tomcat.
• Worked with MySQL databases, Apache Web server, Tomcat Application Servers
• Installation and configuration of OpenStack on Cent OS 7.
• Worked on import and export tools provided by Wind River for OpenStack deployment.
• Validated Wind River Titanium OpenStack by creating Instances, Flavors, Volumes, Images, Networks, Projects and Users with multiple different combinations and possibilities.
• Kubernetes architecture: node, kubelet manages pods, their containers, images, volumes, network etc. kube-proxy is a simple network proxy and load balancer responsible for reflecting services on the nodes
• Linux container orchestration with Docker, Kubernetes, CoreOS, etcd, and more
• Virtualization platform Kubernetes and Docker, Kubernets components ETCD, Flannel
• Excellent understanding and hand-on expertise in creating new Custom resources in Kubernetes
• Worked with Docker and Kubernetes on multiple cloud providers, from helping developers build and containerize their application (CI/CD) to deploying either on public or private cloud.
• Used Azure Terraform and Azure OpsWorks to deploy the infrastructure necessary to create development, test, and production environments for a software development project
• Worked on Azure Cloud services, Azure storage, Azure Cli, Azure active directory and Azure Service Bus. Managing Client's Microsoft Azure based PaaS and IAAS environment.
• Involved in installation, configuration and administration of RHEL 5x/6.x Servers.
• 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.
• Migrate AIX 6.1 applications to RedHat Linux 7.4
• Worked in infrastructure team on installation, configuration and administration of RHEL 5.x/6.x/7 & CentOS 5.x/6. x.
• Provided installation and configuration of specialized software (Manhattan&Associates - 2016 RHEL / JBOSS / ORACLE) to store and organize data.
• Thorough understanding of advanced RHEL Linux capabilities (clustering, load balancing, etc.)
• User administration setup and maintaining account.

Sr Linux/Unix System Administrator

Confidential

Responsibilities:

• Worked in infrastructure team on installation, configuration and administration of RHEL 5.x/6.x/7, UNIX & CentOS 5.x/6. x.
• Maintained RHEL 6.6/7.2 operating system computers used as web, file, and database servers in the Development, Quality Assurance (QA) and Production environments.
• Involved in installation, configuration and administration of RHEL 5x/6.x Servers.
• Configuration and maintaining RedHat Cluster, Veritas Cluster server, NetBackup, Veritas volume manager and Veritas file system. Experienced in Virtualization Products KVM, XEN
• Implemented Puppet for Package and configuration management.
• Configured and used automation tools like PUPPET to push updates like sudo, ssh. Send mail and patches.
• Worked on Puppet extensively for deployment for servers, creating on custom scripts and managing changes through Puppet master server on its clients.
• Assembled Puppet Master, Agent, and Database servers on multiple Red Hat Enterprise Linux Platforms.
• Install, configure and maintain UNIX/Linux systems utilizing installation and management utilities such as Jumpstart, Kickstart, preseed files and Ansible.
• Implemented various Perl, Python, VBScripts and shell scripts to facilitate UNIX/SAP administration.
• Performed UNIX system copies utilizing MKSYSB, FLAR and custom scripts.
• Responsible for the installation and administration of UNIX, Linux and Windows systems at Seminis.
• Implemented solution for gathering performance metrics and trending on UNIX, Linux and Windows systems as well as networking equipment through open source software such as Big Brother and MRTG.
• Highly experienced with installation, configuration and support of the full line of HP UNIX server platforms from entry-class to the current Superdome2 including both HP Integrity & PA-RISC architectures
• Advanced System Administration experience HP's UNIX clustering technology: MC ServiceGuard and related technologies including Oracle RAC, Veritas CFS and others
• Designed Puppet Modules to manage configurations and automate installation process and developed automation scripting in Python using Puppet to deploy and manage Java applications across Linux servers.
• Worked with various scripting languages like Shell, Ruby and Python.
• Wrote python script that uses Front Arena API to update additional information such as client code and fund code on portfolios and trades.
• Wrote Python scripts to parse XML documents and load the data in database.
• Developed tools using Python, Shell scripting, XML to automate some of the menial tasks.
• Created Python scripts used to generate reports.
• Heavily leveraged Python's graphics APIs for creating graphics and serialization libraries for encoding data in XML/JSON formats.
• Configured and Administered Apache, VSFTPD services, MYSQL and Tomcat.
• Managed all AWS tasks (EC2, S3, EFS, EBS, IAM, Auto-scaling groups) with deployment software terraform
• Managed nodes configuration by assigning ip addresses and zones and aws route 53 (DNS).
• Exposure to Vulnerability Management tool Qualys for running scans.
• Experience on storage like NAS, SAN (Netapp), local (lvm) and Pure storage and aws S3 bucket, EBS and EFS
• Used Multi Factor Authentication to secure the AWS Account.
• Responsible for Apache/Tomcat Servers in a Load-Balancing Configuration on RedHat Enterprise Linux 4
• Setup Apache Tomcat as a high-availability application serving platform.
• Expert in Microsoft Azure component Deployments with emphasis over reduction of overall time and performing unattended ZERO-Downtime deployments.
• Expert in Azure Service Fabric Deployment (Distributes Systems platform)
• Automation of Azure Pass Components Deployment using ARM Templates
• Exposed Virtual machines and cloud services in the VNets to the Internet using Azure External Load Balancer
• Responsible for patching using RedHat Satellite and upgrading RHEL servers from 5.x to 5.11 and 6.x to 6.5
• Hands on experience with containerization and clustering technologies like Docker and Kubernetes.
• Maintenance and upgrade cloud infrastructure built using OpenStack, VMware, Dockers, Kubernetes etc.
• Scheduled, deployed and managed container replicas onto a node cluster using Kubernetes
• Implemented CICD allowing for deploy to multiple client Kubernetes/AWS environments
• Experience in Kubernetes and Docker for deploying and scaling the work loads and also integration in Networking, Storage and Security.
• Actively involved in deployments on Docker using Kubernetes
• Create and manage Cinder volumes in OpenStack Cloud.
• Create and collect measurements across OpenStack using Ceilometer Telemetry Service.
• Monitoring running stacks including events & resources on OpenStack Cloud.
• Experience in Implementation of Continuous Integration and Continuous Delivery and other tooling as needed to support internal and customer development efforts to customize and enhance OpenStack.
• Accomplished deployment automation, scaling and operations of application containers across cluster of hosts using Kubernetes and worked closely with the development teams and performance test engineers for EC2 optimization and Docker build containers.
• Created Docker images using a Docker file, worked on Docker container snapshots, removing images and managing Docker volume and implemented Docker automation solution for Continuous Integration / Continuous Delivery model.
• Experience in RHEL Clustering, configuration and File System maintenance.
• Rapid provision & configuration management for RHEL using Puppet
• Build, configured, and deployed RedHat virtual servers in a VMware vCenter environment.
• Configuring and administering NFS, DNS, CIFS, FTP, SFTP
• Thorough understanding of advanced RHEL Linux capabilities (clustering, load balancing, etc.)
• Worked on RHEL Linux internals (e.g. Kernel)
• Workedon popular applications/middleware that can execute within the RHEL Linux environment (e.g Oracle, MQ series, Websphere, etc)
• Knowledge and experience in RHEL Linux High-Performance computing including parallel environments, and batch schedulers.
• RHEL installation and modifications, account creation and maintenance, environment configuration, OS patches, etc.
• Experienced with physical and virtualized RHEL Linux systems including LPARs
• Offloaded the MySQL Nagios database to a separate RHEL 6/7 server to improve performance and stability, Update clinical applications and databases.
• Monitoring RHEL 7/centos servers with command line monitoring tools such as top, htop, lsof, iostat, iotop, tcpdump, sysstat (SAR), Splunk and Nagios.
• Maintained all system backup and assisted to restore all procedures and provided required training to all users.
• Evaluated all documents according to system requirements and evaluated all design and performed tests on all development activities and administered all complex methodologies.
• Developed an infrastructure to provide support to all business requirements and perform regular troubleshoot on system to resolve all issues.
• Monitored everyday systems and evaluated availability of all server resources and performed all activities for Linux servers.
• Assisted to configure and deploy all virtual machines and installed and provided backup to all configuration procedures.
• Perform tests on all new software and maintain patches for management services and perform audit on all security processes.

Linux System Administrator

Confidential

Responsibilities:

• Assist with management Linux server infrastructures.
• Demonstrated Linux systems engineering worked in a complex, highly virtualized enterprise environment.
• Responsible for handling escalated incidents and High Availability environment incident Management on UNIX Platform HPUX, LINUX, Solaris .
• Worked on Linux systems installation and management.
• Proficiency with Linux-based operating system, commands and utilities.
• Install, maintain and upgrade Linux server and software according to security standards and best practices from the company.
• Initiate, and support installation on all non-standard unix installations.
• Support and maintain installed base of Unix servers..
• Design/Build new Unix (HP-UX, SuSE, and RedHat) servers as required, on both dedicated hardware, and VMWare Virtual servers.
• Job duties include day to day maintenance, and servicing to ensure successful achievement of SLA commitments for unix systems in support of the systems customers.
• Assist with the installation, configuration and management of the Linux infrastructure.
• Participated to the backups and restoration of Linux systems.
• Proficiency in Hypervisor technology (VMware/HyperV), Cisco UCS and IBM blade server technology, and Red Hat Enterprise Linux, HPUX
• Linux system performance check using various tools and commands like top, netstat, vmstat, w, who, uptime, ps, mpstat, iostat, SAR etc.
• Monitoring of Linux Servers using the tools like Orca & Nagios, Cacti, RRD tool & Alert Logic monitoring tool.
• Troubleshoot and support Linux and Solaris systems, as well as deeper troubleshooting knowledge of technologies sitting on top of them (ex. Apache, MySQL, LDAP)