PROFESSIONAL SUMMARY:

• 7 years of IT experience, specialized in automating the process for Increasing the Agility and Quality of Software Releases with deep expertise in Automation/Command line Tools, Continuous Integration/Continuous Delivery Pipelines, Public/Private Clouds.
• Experienced with AWS EC2, Route53, DNS, ELB, EBS, AMI, VPC, Cloud Formation Templates, Cloud Watch Monitoring and used Chef to leverage and manage AWS Instances.
• Installed Chef Server/Workstation, Bootstrapping Nodes and wrote Recipes, Wrapped Cookbooks and utilized Community cookbooks as well. Used Test - Kitchen and Unit testing for testing purpose. Experienced in writing Chef Recipes to automate our build/deployment process and do an overall process improvement to any manual processes.
• Installed Puppet Master, Puppet Agent, Apache with Passenger. Coded Modules and Manifests manually and used Puppet Forge to download Modules as well.
• Experience with containers and container scheduling and management platforms such as Docker and Kubernetes. Worked on several Docker components like Docker Engine, Hub, Machine, Compose and Docker Registry Configured Nginx based load-balancing for QA services, to avoid download for testing. Performed containerization of micro services using Docker and rolled out to upper environments. Created Docker images and deployed Docker containers for Tomcat Servers.
• Experience in execution and maintenance of VMware, AmazonLinux instances, DNS, DHCP, NIS and NFS.
• Experience in working on version control systems like Subversion, GIT and used Source Code Management client tools like GitBash, GitHub, Git GUI and other command line applications etc.
• Knowledge in Networking, kernel Parameter & Tuning, Troubleshooting System & Performance Issues, Package Management (YUM/RPM), Patch Management and Development Operations.
• Experience with logging advances (Elasticsearch, Logstash, Kibana )ELK, record beat. And outlined and setup environment of GLOBAL ELK in QA, STG and PROD.
• Experience in creating the VMs using VMware WebSphere Client and enabled services like High Availability(HA), SRM, DRS and also clustered all the VMs using vCenter and migrating them using vMotion.
• Proficient in Linux Utilities such as KICKSTART Images, SSH, FTP, wrappers, Process Management, Memory Management, and Text processing tools, Log Management, Package Management, Disk Management and Swap Partition/Files Management.
• Expertise in writing Shell Scripting using bash to ease administration tasks. Experience in Installing, configuring and maintaining apache/tomcat, samba &send mail.
• Experience CI/CD tools like Jenkins to deploy Java applications/Web-services and Puppet to for clustering.
• Experience in deploying, releasing, automating and building of code from one environment to other environment.
• Implemented JIRA for bug tracking, issue tracking and project management function.
• Established repositories Like SVN, GIT, Visual SVN and managed plug-ins for Jenkins for scheduled automatic checkout of code.
• Learning of networking concepts (DNS, TCP/IP, UDP, DHCP, HTTP, SSH, OSI layers) and Configuring (Client/Server engineering and Firewalls, NFS, NIS, and LDAP) on Linux server environment.
• Extensive experience using MAVEN and ANT as build tools for the building of deployable artifacts (jar, war & ear) from source code.
• Promote involvement of application development teams to make recommended changes that improve program performance.
• Configured DNS, NIS, NFS and DHCP, troubleshooting network problems such as TCP/IP, providing support for users in solving their problems.
• Efficiency in installing, configuring and implementing the RAID Technologies using various tools like SVM and LVM. Troubleshooting network problems such as TCP/IP, providing support for users in solving their problems.

TECHNICAL SKILLS:

Operating Systems: Red Hat Linux ES & Centos OS 4.X, 5.X, 6.X & 7.X, Ubuntu 10.X Solaris 9,10, 11, Windows 2K, XP, 2003, NT, 2008, 2012 and 6, AIX 7, HP-U6X 11.23

OS Administration: RedHat 5.X 6.X,7.X Linux administration, Solaris 9, 10 Administration

Scripting Tools: Shell, Perl, Python, Ruby

Scheduling Tools: Autosys, crontab

Application servers: WAS 7.X, 8.X JBoss AS 5.x, 6.x, 7.x and JBoss EAP 5.x, 6.x

Web Servers: Apache(httpd), apache-tomcat and Apache http server

Monitoring: Nagios, ZABBIX, Splunk

Networking: DNS, DHCP, TCP/IP, SMTP, LDAP

Third Party Tools: Puppet, Chef, Jenkins, Various DevOps Tools

Virtualization tools: VMWare, vsphere, ESX 5.x/6.0

PROFESSIONAL EXPERIENCE:

Confidential, Denver, CO

Build Engineer

Responsibilities:

• Installed, Configured, Troubleshoot, secured and supported CentOS6/6.5, RedHat4/5 and also product servers. And deployed, configured and administrated VMware and VSphere 5.1 environments.
• Designed and deployed a multitude application utilizing the AWS stack including EC2, Route53,S3, RDS, Dynamo DB, SNS, SQS, IAM focusing on high-availability, fault tolerance, and autoscaling in AWS Cloud formation.
• Responsible for diagnosing and resolving AWS production and performance issues.
• Troubleshoot and maintain documentation for build servers and virtual environments.
• Worked with apparatuses for log examination and caution activating and interfacing them to various checking devices (Elasticsearch, LogStash, Kibana )ELK, AWS CloudWatch). Maintained the deployment properties for the ELK.
• Created advanced views, Dashboards into the ElasticSearch, Splunk, Kibana (ELK) stack that Amazon Elasticsearch Service provides. Worked on ELK (Elasticsearch, logstash, Kibana) Stack.
• Created S3 bucket and also managed policies for S3 bucket for Archival storage and backup on AWS. Monitored services for AWS cloud resources and applications running in AWS using Cloud Watch.
• Configured Ansible to manage AWS environments and automate the build process for AMIs used by all application deployments including Auto scaling, and Cloud formation scripts. Worked on gathering data from AWS and posting on dashboard using Python script. And developed python scripts for automating client/server solutions.
• Worked on microservices built on AWS for the components which communicate with AMS (Advance messaging system) and TSB such as Lineup Edge, PPV, EPG.
• Built the microservices in AWS according to the component requirement for stated.
• Contribute in implementation and adherence to continuous integration CI practices, including build automation, test automation, fast builds and clean build maintenance.
• Coordinated and delivered production-ready release packages to deployment teams through a coordinated and scheduled configuration control process as part of CI/CD.
• Utilized Kubernetes and Docker for the runtime environment of the CI/CD system to build, test and deploy.
• Installing, configuring and administering JenkinsCItool on Linux machines.
• Used Jenkins for Continuous Integration and deployment (CI/CD) into Apache Tomcat Application Server.
• Set up Jenkins server and build jobs to provide continuous automated builds based on polling the Git source control system during the day and periodic scheduled builds overnight to support development needs using Jenkins, Git.
• ImplementedCI/CDpipeline using Jenkins and extensively worked for End-to-End automation for all build and deployments.
• Implemented the setup for Master slave architecture to improve the Performance of Jenkins and also implemented nightly builds on daily basis and generated change log that includes changes happened from last 24hours.
• Directly assist teams in their setup of solutions and projects to align and enable best practices in software management, branching, merging and packaging.
• Configured and monitored disk mirroring, stripping using LVM. Worked on configuring and troubleshooting VPN Technologies (Open VPN) etc.
• Performed system Firmware updates, Linux kernel, memory upgrades and along with Red hats Linux Kick start Installation.
• Worked on logical volume management creating VG, LV and mounting the file systems and extended file systems size in production servers.
• Responsible for designing, administrating creating and documenting the new ACL policies enterprise LDAP.
• Managed Virtualization Environment using VM Ware ESX 3.x, VM Ware VSphere 4.x, Virtual Center, VI Client, and P2V.
• Installation, Configuration, Administration and Troubleshooting of Implementation VMware vSphere and administration in VMware environment deploying of Templates and Snapshots.
• Installed and setup GIT server and repos and created hooks to trigger Jenkins projects to do automated deployment ofchef cookbooks on the nodes.
• Installed and managed tools through chef cookbooks such as Apache & Tomcat, WebSphere Application Server 7.x/8.x and other domain related components (Active Video Component)
• Actively involved in code push and firmware upgrade fordifferenttype ofWorld BoxesincludingArris, Humax.
• Deployed Active Video (AV)Componentssuch as CSM,Stitchers, Content, Cookie, Proxyservers usingchef cookbooksas per Spectrum guide requirements and also actively participated in troubleshooting these components.
• Troubleshootedissues during code push with differentCMTS(DOCSIS) teams to check proper tunnel configurations based on the market type.
• Performed configuration and support of advanced video equipment (QAMandDOCSIS). Worked withDOCSISfor configuring the newDSGtunnels specific toWB2.0.
• PerformedOperational Readiness Testing(ORT)using ansible scripts and validating the server issues and fixing the accordingly on the servers.
• Worked onCLMSand resolved the channels unavailable issue, channel mismatch issues and also onPPV,VODandGuide related issues onsettopbox(STB).
• Built scripts onTerraformto launch servers and also modified resources to configure and execute as per market requirement.
• Worked with AE to implement the Dual playout from TSB’s so that we able to boot the WB2.0’s on two different wire plants.
• Daily monitoring response for Linux servers includingapplicationprocess, files systems alerts, systems faults usingICINGA.
• Implemented and supported monitoring tools likeSplunkon QA and Production servers for Resource, Network and Log Trace monitoring.
• ManagedSplunkconfiguration files like inputs, props, transforms, and lookups and upgrading theSplunkEnterprise to 6.2.3 and security patching.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IP tables, firewall, TCP wrappers.
• Troubleshooting Users login & home directory related issues. Managing (adding/removing) disks and partitions (LVM).
• Planned and implementing backup and restores. Installed and configured the CentOS 6,6.5 servers using Kick Start. Installed and configured the RPM packages using the YUM software manager.
• Merged the generated reports as per request. Formatted data into required format using UNIX Shell Scripts, SED and Awk. Implemented Networking communication skills and protocols such as TCP/IP, Telnet, FTP, NDM, SSH, rlogin.
• Configured Logical storage Manager (LSM) for root disk encapsulation and implemented root disk mirroring for fault tolerance.
• Troubleshooted network connectivity using ping, netstat, ifconfig, and trace route commands. To login to the remote system using sudo, putty and telnet.
• Worked on group/user administration, startup and shutdown scripts, crontabs, file system maintenance and backup scripting and automation.
• Involved in transferring files across the systems on the network using ftp and scp commands. And also automated them using Bash script.
• Troubleshooting security issues occurred in Linux, Windows, TCP/IP, SMTP, HTTPS and DNS.
• Bootstrapped the Nodes using Knife and integrated with auto scaling. And installed Chef-Server Enterprise On-Premise and established WorkStation.
• Built new servers using chef cookbooks on premise cloud, modified cookbooks in ruby and rails. Debugged the cookbooks using Kitchen to rectify the errors.
• Involved in developing custom scripts using Python, Perl & Shell (bash, ksh) to automate jobs.
• Wrote Bash and Perl Scripting to migrate consumer data from one production server to another production server.
• Worked on CI/CD tools like Jenkins to deploy Java applications/Web-services/Micro services onto multiple platforms like Apache/Tomcat, Nginix /micro services on Docker containers, Databases (Mongo DB, MySQL, Oracle, SQL Server).
• Used MAVEN and ANT as build tools for the building of deployable artifacts (jar, war & ear) from source code and troubleshooting them in different environments to resolve failovers, load balancing.

Confidential, Richmond, VA

DevOps Engineer/ Cloud Engineer

Responsibilities:

• Manged Amazon Web services (AWS) instances such as EC2, S3, ELB, Auto scaling Servers, Glacier, Storage Lifecycle rules, Elastic Beanstalk, Cloud Formation, Cloud Front, RDS, VPC, Route 53, Cloud watch, IAM &Roles, SNS subscription services.
• Worked on leveraging AWS cloud services such as EC2, auto-scaling and VPC to build secure, highly scalable and flexible systems.
• Migrated a production infrastructure into an AWS VPC utilizing AWS Cloud Formation, Chef/OpsWorks etc.
• Involved in designing and deploying multi applications using AWS stack (including EC2, S3, RDS, PostgreSQL, SNS, SQS, IAM) with high-availability, fault tolerance, and auto-scaling in AWS Cloud formation.
• Worked with apparatuses for log examination and caution activating and interfacing them to various checking devices (Elasticsearch, LogStash, Kibana )ELK, AWS CloudWatch, Azure OMS and SCOM). Maintained the deployment properties for the ELK.
• Created advanced views, Dashboards into the ElasticSearch, Splunk, Kibana (ELK) stack that Amazon Elasticsearch Service provides. Worked on ELK (Elasticsearch, logstash, Kibana) Stack.
• Created S3 bucket and also managed policies for S3 bucket for Archival storage and backup on AWS. Monitored services for AWS cloud resources and applications running in AWS using Cloud Watch.
• Configured Ansible to manage AWS environments and automate the build process for AMIs used by all application deployments including Auto scaling, and Cloud formation scripts. Worked on gathering data from AWS and posting on dashboard using Python script. And developed python scripts for automating client/server solutions.
• Used AWS CodeDeploy for software deployment to increase the application availability and used to perform rolling updates across EC2 instances and tracks application health according to configurable rules.
• Worked on AWS CodeDeploy to launch and track down the status of application deployments through the AWS Management Console or the AWS CLI.
• Managed On-site OS/Applications/Services/Packages using Chef as well as AWS for EC2/S3/Route53 & ELB with Chef Cookbooks.
• Used chef cookbooks to edit recipes from marketplace and customized for AWS server provisioning. Wrote chef cookbooks to automatically provision the services like Splunk and install PostgreSQL client on EC2.
• Worked with Chef Enterprise Hosted as well as On-Premise, Installed Workstation, Bootstrapped Nodes, Wrote Recipes and Cookbooks and uploaded them to Chef-server. Managed Amazon EC2 instances with the help of chef.
• Bootstrapped the Nodes using Knife and integrated with auto scaling. And installed Chef-Server Enterprise On-Premise and established WorkStation.
• Built new servers using Chef Cookbooks On-Premise Cloud, modified Cookbooks in ruby and rails. Debugged the Cookbooks using Kitchen to rectify the errors.
• Worked on AWS CodeCommit to integrated with AWS Identity and Access Management (IAM) allowing assign user-specific permissions to your repositories.
• Developed CFT (Cloud Formation Templates) to setup user roles with corresponding user and group policies.
• Developed microservice on-boarding tools leveraging Python and Jenkins allowing for easy creation and maintenance of build jobs andKubernetesdeploy and services. Implemented CI CD allowing for deploy to multiple clientKubernetes/AWS environments.
• Performed POC on implementation of continuous deployment pipeline with Jenkins and Jenkins workflow onKubernetes.
• Worked on user containers using Kubernetes master to schedule and pack them dynamical on to a bunch of nodes.
• Deploying multi-stack software builds to various environments using automation tools like Ansible, minimizing downtime.
• Worked with AnsiblePlaybooks forvirtual and physical instanceprovisioning, configuration management, patchingand software deployment.
• Used Docker to create Docker images and deployed Docker containers for Tomcat Servers and Apache web servers and hosted network service and testing using Docker cloud.
• Leveraged Docker Engine to run Multiple Tomcat Instances as containerized AppServers and used Docker machine to automate container provisioning in the cloud.
• Hands on experience designing, developing, deploying with automated CI/CD process, created pipeline solutions for multiple development groups using Jenkins, TFS, SVN, GIT, Junit, SonarQube, ANT, Maven, gradle, Nexus, Artifactory, MS Build, uDeploy.
• With AWS CodeDeploy we automated code deployments, to deploy applications rapidly in different environments.
• Worked on CI/CD tools like Jenkins to deploy Java applications/Web-services/Microservices onto multiple platforms like Apache/Tomcat, Nginix /microservices on Docker containers, Databases (MongoDB, MySQL, Oracle, SQL Server).
• Develop and maintain Maven (pom.xml) scripts to configure application dependency at build execution. Automated the weekly deployments utilizing Jenkins (SCM polling).
• Used MAVEN and ANT as build tools for the building of deployable artifacts (jar, war & ear) from source code and troubleshooting them in different environments to resolve failovers, load balancing.
• Installation & Configuration of Web servers like Apache 2.2 and Application servers like Tomcat7 on the existing Linux servers to satisfy the dependency.
• Configured and managedNagiosfor monitoring over existing AWS cloud platform and managed and monitored the server and network infrastructure usingNagios.
• Installed Configured Atlassian Tools like JIRA, Confluence, BitBucket, FishEye and Integration of these tools to together for a Streamlined Agile Workflow and Project Collaboration.
• Provided server maintenance and installation, desktop deployment and maintenance, and end user support on Windows server.
• Performedwindowsserver administrative functions including Active Directory and Group Policy management.
• Supported cloud servers including security configurations, patching, and troubleshooting app and web servers.
• Managed various Network related tasks such as TCP/IP, NFS, DNS, DHCP and SMTP. Setup of FTP and NFS servers for file sharing.

Confidential, Washington, DC

Linux/DevOps Engineer

Responsibilities:

• Worked on Multiple AWS instances, set the security groups, Elastic Load Balancer and AMIs, Auto scaling to design cost effective, fault tolerant and highly available systems
• Created Cloud Formation Templates for provisioning software on AWS infrastructure and automating the installation of software through shell scripts.
• Used Route53 Configurations to setup the Hosted Zones and also (IAM), RDS, Route 53, VPC, RDB, Dynamo DB, SES, SQS and SNS services in AWS cloud.
• Created S3 bucket and also managed policies for S3 bucket for Archival storage and backup on AWS.
• Set alarms on AWS metrics to send notifications and other automates actions like EC2 auto scaling and to remove EC2 instances using AWS Cloud watch.
• Used Cloud watch to view metrics for CPU utilization, data transfer, and disk usage activity from AWS EC2 instance.
• Using VPC created a public-facing subnet for your webservers that access internet, and placed databases or application servers in a private-facing subnet with no internet access. Associated VPC Security Groups with instances on EC2.
• Managed On-site OS/Applications/Services/Packages using Chef as well as AWS for EC2/S3/Route53 & ELB with Chef Cookbooks.
• Used chef cookbooks to edit recipes from marketplace and customized for AWS server provisioning. Wrote chef cookbooks to automatically provision the services like Splunk and install PostgreSQL client on EC2.
• Worked with Chef Enterprise Hosted as well as On-Premise, Installed Workstation, Bootstrapped Nodes, Wrote Recipes and Cookbooks and uploaded them to Chef-server. Managed Amazon EC2 instances with the help of chef.
• Installed/Configured/Managed Puppet Master/Agent. Wrote custom Modules and Manifests, downloaded pre-written modules from puppet-forge. Upgradation or Migration of Puppet Community and Enterprise.
• WrotePuppetmodules to configure Apache, Tomcat, and different web application to improve performance.
• Deploy and monitor scalable infrastructure on Amazon web services (AWS) & configuration management using puppet.
• Installed and setting up GIT server and repos and created hooks to trigger Jenkins projects to do automated deployment ofpuppetmodules topuppetserver and then triggerpuppetagents on the nodes.
• Used Puppet to manage Web Applications, Configuration Files, Data Base, Commands, UsersMount Points, and Packages.
• Installed and managed Middleware tools through Puppet such as WebSphere Application Server 7.x/8.x, JBOSS GA7/EAP6, IBM IHS, Apache & Tomcat.
• Installed and configured Red Hat, Centos on variety of different server platforms that contained Apache, MySQL. Installed and configured Apache Webserver, WebLogic Application Server and Oracle databases.
• Performed Installation, configuration and administration of JBoss and mongo dB, MySQL.
• Installed and configured code rules, keys ofSonarfor code analysis and created ofSonarQube dashboards to monitor the progress of project source code.
• Configured Nginx based load-balancing for QA services, to avoid download for testing.
• Used Docker machine to automate container provisioning in the cloud. Deployed Docker images, hosted network service and testing using Docker cloud.
• Monitoring variety of services using Python scripts and Perl Scripts with Hash/ Arrays to modify content in multiple server.
• Using Docker Universal Control Plane (UCP) to deploy dockerized applications on-premises, behind the firewall.
• Worked on several Docker components like Docker Engine, Hub, Machine, Compose and Docker Registry
• Leveraging Docker Engine to run Multiple Tomcat Instances as Containerized AppServers.
• Implementing a Continuous Delivery framework using Jenkins, Puppet, Maven & Nexus in Linux environment.
• Configured and maintained Jenkins to implement the CI process and integrated the tool with Ant and Maven to schedule thebuilds and deployment.
• Automated weekly releases with ANT/Maven scripting for Compiling Java Code, Debugging and Placing Builds into Maven Repository.
• Integrated Nagios with other monitoring/alert solutions for the server disk management.
• Involved in setting up JIRA as defect tracking system and configured various workflows, customizations and plugins for the JIRA bug/issue tracker.
• Worked with JIRA for creating Projects, assigning permissions to users and groups for the projects & Created Mail handlers and notification Schemes for JIRA.
• Worked on Installation/Configuration/Administrated VMware ESXi 5.1/5.5 & 6.0 and migrated existing servers into VMware Infrastructure

Confidential, Greenville, SC

Linux/DevOps Engineer

Responsibilities:

• Worked on installation, configuration and maintenance Redhat, CentOS and Suse Servers at multiple Data Centers.
• Using PXE booting installed VM Ware in 30 servers. Implemented Migration from VMWARE to AWS using VMDK Import tools.
• Worked on Installation/Configuration/Administrated VMware ESXi 5.1/5.5 & 6.0 and migrated existing servers into VMware Infrastructure. Used Windows 2008 R2 and installed VCenter.
• Performance tuning onWindowsservers, increased through-put and decrease time for completing backup jobs
• Managed VMWARE vSphere HOSTS in a HA/DRS Environment with vMotion/ SiteRecovery Manager, Replication Manager vRealize Automation Center and Fiber SAN.
• Managed, led and supported Windows XP, 7, Server 2008, VMware and Active Directory domain network in multi-locations include server 2008 R2 and 2012 R2.
• Leveraged AWS components like (EC2, S3, ELBs, VPCs, Auto-scaling) using chef cookbooks.
• Maintained automatic environment using Chef recipes & cookbooks within AWS environment.
• Migrated consumer data from one production server to another production server over the network with the help of Bash and Perl scripting.
• Deployed and monitor scalable infrastructure on Amazon web services (AWS) & configuration management using puppet.
• DesignedPuppetModules to manage configurations and automate installation process and createdpuppetmanifests and modules to automate system operations.
• Wrotepuppetmodules to configure Apache, Tomcat, and different web application to improve performance.
• Developed automation scripting inPython (core)usingPuppetto deploy and manage Java applications across Linux servers.
• Installed Jenkins/Plug-ins for GIT Repository, Setup SCM Polling for Immediate Build with Maven and Maven Repository (Nexus Artifactory).
• Deployed Apps using custom ruby modules through Puppet as a CI/CD process.
• Used monitoring tool Nagios for monitoring the network bandwidth and the hard drives status. Logged events from forced crash dumps and troubleshoot server issues.
• Configured yum repository server for installing packages from a centralized server and configured RedHat Kickstart for installing multiple production servers. Installed packages with yum and rpm.
• Installed and configured DCHP server to give IP leases to production servers. And managed RedHat Linux user accounts, groups, directories and file permissions.
• Implemented Clustering Topology for high availability and failover requirement for enhancing performance and functionality.
• Installed, Configured and administrated DNS, LDAP, NFS, NIS and Sendmail on Redhat Linux/Debian Servers. And managed ESX VM’s with virtual center and VI client.
• Performed Disk management with the help of LVM (Logical Volume Manager). Created and maintained network users, user environment, directories, and security.
• 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 LUNs to the Red Hat Linux servers and troubleshooting the issues encountered
• Planning and performing the upgrades on Linux operating systems and hardware maintenance on HP and POWER servers like increasing memory, disk, replacing failed hardware.
• Provided 24/7 on call support on Linux Production Servers. Responsible for maintaining security on Redhat Linux.

Confidential, St. Louis, MO

Unix/Linux Administrator

Responsibilities:

• Installed, configured, troubleshoot, secured and supported RedHat4/5, CentOS3/4/5 and SUSE Linux9/10servers and also product servers. And deployed, configured and administrated VMware and V Sphere 5.1 environments.
• Configured and monitored disk mirroring, stripping using LVM. Worked on configuring and troubleshooting VPN Technologies (Open VPN) etc.
• Added Users ID, created groups, assigned users in primary or secondary group and also adding users to sudo groups.
• Implemented and configured brand new VMware virtual infrastructure cluster running on servers and an storage array.
• Supported variousWindowsServer hardware configurations including physical and VMWare vSphere virtual servers
• Performed administration tasks relating to DNS, DHCP, LDAP, NIS. Setup and configured DHCP, Kickstart images, and PXE servers for automated system builds.
• Configured servers, installed patches, and support the virtual infrastructure
• Configured Resource Pool, V Motion, Alerts, Alarms, NTP, HA, DRS and deployed virtual servers using template and scheduled jobs using Crontab.
• Troubleshooting security issues occurred in Linux, Windows, TCP/IP, SMTP, HTTPS and DNS.
• Migrated Physical Servers to Virtual Serves using VMware Converters and migrated Virtual Machines using V-Motion.
• Created file systems using Red Hat volume manager and performed the health check on regular basis for all Linux servers.
• Support for Linux/Unix systems administration, operational support and problem resolution for server systems Created shared NFS files system, mounting and un-mounting NFS server, NFS client on remote machine, sharing remote file folder, starting &Stopping the NFS services.
• Done with LAMP Setup in RHEL, MySQL setup, Performance Tuning, Replication, Commands, Backup and overall Administration
• Design, planning, implementation and administration of MicrosoftWindows2008/R2 server systems, both virtual and physical. Configured and Installed JBOSS 5.x on Linux servers.
• Installed/ Activation of F5 Load balancers, configure routing logic, creation of new service pools, members, virtual servers etc. ConfiguringWindows2012 Failover Clustering and SQL Clustering in VM and Physical environment.
• Performed tuning included tuning the existing heap values, DB Connection settings etc.
• Migrated VM from one LUN to another LUN using Storage V-Motion, Created Templates from VM’s, deploy VM’s from templates and allocate resources
• Managed shared NFS files system, mounting and unmounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services.
• Worked on configuration and administration of LVM as extending Logical Volume and Physical Volume Size.

Confidential, Englewood Cliff, NJ

Linux/Unix Administrator

Responsibilities:

• Worked with development teams and business areas to plan future capacity requirements and reviewed usage as well as create, revise, and report any new measurements required to manage distributed environments.
• Experience with installing, configuring and maintaining Red hat Linux Enterprise Server 5/6 on Dell and HP x86 HW, ESX Servers (ESX3.5/ESXi 4.0/ESXi 4.1 andVMwareESX 5.1) and Server migrations from physical to Virtual using Hot and cold cloning technology invmware.
• Monitoring system logs and root's email for important messages such as errors and warnings or hardware failure errors.
• Managed and maintained virtual computing environment based onVMware, Hyper V and administers computer systems with windows and Linux operation systems.
• ConfiguredVMwareon clustered environment, Implemented vMotion, DRS, HA. Creating and Managing VMware cluster with HA and DRS.
• Determining customer requirements and designingVMware-based solutions architectures spanning VMware's product portfolio from the vCloud Suite to the Horizon Suite to meet the functional and business requirements of a range clients of various sizes and across verticals.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers.
• Security implementation by using ACL's & special file permissions. Extensive experience in Security Patching.
• Trouble shooting User's login & home directory related issues. Managing (adding/removing) disks and partitions (LVM).
• Installation of Web logic, upgraded to service pack updates, installed BEA patches, configuring and creation new domain & services starting & stopping.
• Planned and implementing backup and restores. Installed and configured the Red Hat Linux 5.1 on HP-Dl585 servers using Kick Start. Installed and configured the RPM packages using the YUM Software manager.
• Merged the generated reports as per request. Formatted data into required format using UNIX Shell Scripts, SED and Awk. Implemented Networking communication skills and protocols such as TCP/IP, Telnet, FTP, NDM, SSH, rlogin.
• Configured Logical storage Manager (LSM) for root disk encapsulation and implemented root disk mirroring for fault tolerance.

Confidential

System Administrator

Responsibilities:

• Installed, configured, and updated Linux machines, with Red Hat, Debian, and CentOS.RPM and YUM configuration for packages installations, patch and other server management.
• Troubleshooted network connectivity using ping, netstat, ifconfig, and trace route commands. To login to the remote system using sudo, putty and telnet
• Involved in transferring files across the systems on the network using ftp and scp commands.
• Installed patches and other software packages Disk and File system management and other logical volume manager for other flavor of LINUX and extensively performed system rollouts and BIOS upgrades
• Performed hardware installations and upgrades. Configured hardware and Software RAID on Digital Servers.
• Administered a corporateVMwareESXi Server infrastructure with capacity for 100 servers across 3 separate environments.
• Provided desktop support for over 90 Customer Services Representatives, Performed system backups and network printer configuration troubleshooting
• Configured and maintained NIS, NFS, DHCP and DNS Servers on Solaris. User, Group management for all the Linux servers.
• Managed, Capacity Planned, Migrated WINTEL Windows Servers 2008-R2/2012-R2 With Services such as Domain Controller, Active Directory, DNS, and Files/Volume Shares etc.
• Used Disk Management Utility for daily file system creation and file system management.
• Installed patches as per the company policy and installed package application
• Experienced in BIOS UPGRADE and OS installations and configurations and maintenance
• Performed tasks on F5 load balancer like installing and renewing SSL certificates and bouncing servers with performance issues after taking them out of the server pools.
• Modified/ Written script in Bash and Korn shell for optimizing day to day administration and edited CronTab in post installation of Linux servers.