SUMMARY

• An opportunistic and passionate AWS (Amazon Web Services) certified DevOps Engineer with 8+ years of in depth technical functional and managerial experience with a will do attitude. I have implemented and managed IT infrastructure solutions to augment business requirements which are scalable, cost effective and secure. I have been a person with a good risk appetite, integrity, accountability, loyalty and commitment.
• Experience in Continuous integration and Continuous Deployment (CI/CD), Build/ Release Management, Linux Administration, Software Configuration Management (SCM), Amazon Web Services (AWS) and various other Cloud implementations in Linux/Unix, Windows platforms.
• Good understanding of the principles and best practices of Software Configuration Management (SCM) in SDLC methodologies like Agile, Scrum and Waterfall.
• Experience in Installing, upgrading and configuring Red Hat Linux 4.x, 5.x, 6.x and 7.x using Kickstart Servers and production support on various applications likeSunSolaris, Redhat Enterprise Linux andWindows Environment.
• Experience in Amazon Web Services (AWS) including migrating infrastructure to AWS cloud and maintenance of production web infrastructure
• Extensive working experience on working with the Configuration Management and Deployment Tools like Puppet, Chef, Ansible, SaltStack, Vagrant, Teamcity, CodeDeploy…etc.
• Strong hand - on expertise on configuring and integrating the servers with different environment and creating new machines using configuration management/provisioning tools like CHEF (Knife, recipe, cookbook), ANSIBLE (Playbook, inventory) and PUPPET (Puppet manifests, Factor, catalog).
• Experience with Build Tools like Ant, Maven, Gradle, Gulp, NuGet, MSBuild for writing build.xmls and pom.xmls respectively.
• Hands-on experience on Ansible and Ansible Tower as Configuration management tool, to automate repetitive tasks, quickly deploys critical applications, and proactively manages change.
• Experience in working with the Cloud/ PaaS/ IaaS platforms like Amazon Web Services (AWS), Microsoft Azure, Cloud Foundry, OpenShift, OpenStack, RackSpace, Google Cloud, Stackato …etc. and Repository Management Tools like Nexus, Artifactory, Docker Hub…etc.
• Experience in working with version control systems/ source code repository tools like Subversion, Cloudforce, Bitbucket, Rational Clearcase, Perforce, GIT, CVS, Tortoise SVN, GitHub maintaining/troubleshooting the CM tool in UNIX and Windows environment
• Hands-on experience handles customizing, maintaining, upgrading and tuning of Atlassian products (Jira, Confluence, Crowd, Stash, Crucible).
• Experience in Server monitoring, capacity planning, application monitoring with the help of IBM Tivoli, Nagios, Cacti, Zabbix, Splunk.
• Good knowledge in assisting the UAT testing of uDeploy and Jenkins tools also worked on Jenkins to create builds, and pass new builds to IBM Urban code/Udeploy for deployment.
• Expertise in automating the software testing environment with open-source tools like JUnit, JMeter, Cucumber, TestNG, Karma, Jasmine, Selenium and WebDriver.
• Experience with Bug tracking tool like JIRA, Bugzilla, Mantis, HP ALM/Quality Center, IBM Rational ClearQuest and Remedy for writing build.xmls and pom.xmls respectively.
• Hands on experience on working with System health and performance Monitoring Tools like Nagios, Icinga Zabbix, Splunk, ELK Stack (Elastic search, Log stash, Kibana), Sensu, Ganglia, Cloud Watch, New Relic, Graphite AppDynamics etc.
• Experience in working with the Relational SQL Databases like Oracle, MySQL, MS SQL, IBM DB2, Teradata, Sybase…etc. and NOSQL databases list Cassandra, HBase, MongoDB, PostgreSQL, Couch DB, Redis, AWS DynamoDB…etc.
• Strong familiarity with Build and configure a virtual data center in the AWS cloud to support Enterprise Data Warehouse hosting including Virtual Private Cloud (VPC), Public and Private Subnets, SecurityGroups, RouteTables, Elastic Load Balancer(ELB).
• Experience using cloud providers and API’s for Amazon Web Services (AWS) with Cloud Sigma (EU).
• Expertise in scripting/Programming for automation, and monitoring using Java, Groovy, Shell, PHP, Ruby, Python & Perl scripts, along with RegEX for auditing.
• Experience with containers, Docker, DockerSwarm Packer, Kubernetes, and ECS
• Programmed custom scripts, coded interface/translations applications to answer pressing reporting issues and bridge the gaps left by other tools. Deployed special open source projects for instance Cacti,LAMP(Linux, Apache, MySQL and PHP/Pearl/Python) assorted Tivoli products.
• Experienced in implementing and maintaining an Apache Tomcat/MySQL/PHP, LDAP, LAMP web service environment.
• Experience in configuration ofNIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, SQUID, postfix, send mail, FTP, remote access, security management and Security trouble shooting skills.
• Monitored and maintained Active directory, creation of new user accounts, shared Mailbox and calendar accounts. Create NAS volumes, CIFS shares, Snapshot, NDMP data backup direct to tape.
• Good working experience in providing secure transfer of files, from web browser and web servers using Secure Socket Layer (SSL).
• Experience in Deployment, requirement gathering, Installation, administration of ESX, VMware View, vRealize Automation(VRA), vRealize Orchestrator(VRO), VMotion, vStorage, VApp, vCloud Director (vCD), VCOPS .
• Experience in Installation of VMware ESX server and creation ofVMs and install different guest OS.
• Experience with Veritas Volume Manager (VxVM), Veritas File System (VxFS), Veritas Net Backup, Veritas Clustering with SAN, NAS environment.
• Experience in creating and managing user accounts, security, rights, disk space and process monitoring in Solaris and Red Hat Linux.
• Experience on Web servers such as iPlanet Web server 6.0 /Sun one web server 6.3, 6.5, Tomcat 3.x, 4.x, 5.x, 6.x, and 7.x & Apache Server 1.x, 2.x and integrating them with WebLogic 10.x servers.
• Experience in Installing, upgrading and configuringSUNSolaris9 and 10 onSunServers Using Jumpstart Servers, Manual installation as when required.
• Experience in package management using RPM, YUM and updated it to all the versions of Red Hat Linux.
• Installation of Python and setting up SSH connection on remote nodes for configuring, managing and deploying software application on the nodes, using powerful automation software called Ansible.
• Hands on Experience in LinuxadministrationSupport,Performancetuning& monitoring, problem analysis & resolution.
• Good working knowledge in creating private cloud using Kubernetes that supports DEV, TEST, and PROD environments.
• Experience supporting 24x7 production computing environments. Experience providing on-call and weekend support.
• Self-motivated team player with excellent verbal and writing communication skills.

TECHNICAL SKILLS

Operating Systems: RHEL 3/4/5/6/7, Solaris, IBM-AIX, Windows 2003, 2008, 2012 and NT.

Scripting/Programming Languages: C, C++, Java, Groovy, SQL, HTML, PHP, XML, Bash, Perl, Shell Scripting (ksh, sh, csh, perl, bash, sed, awk), JSP, Python, Ruby, Visual Basic

Hardware: HP ProLiant, Blade servers, Sun Servers E450, E3500, E4500, E5000, E6500, E10k, E15k, E25k, Sun Ultra's, V210, V280, V490, V880, V6800 SUN Ray (1g Ultra-Thin Client) SUN Desktops (SPARC 10, 5), DMX3 and DMX4 Storage Arrays, F5.

Software: Veritas Volume Manager 3.5/4/5, Veritas File System,Veritas Cluster Server 3.5, Veritas NetBackup 6.0, MS-Office/MS-Project.

Web/ Application Server: Apache Tomcat/HTTP Server, IBM DB2, Oracle, WebSphere, WebLogic, MSSQL, MySQL, JBoss, IIS, IBM RSA/WAS

Database: SQL, Apache DB, Mongo DB, Oracle9i, Oracle10g, Cassandra, PostgreSQL, CouchDB, MySQL, MS SQL

Build and Integration, Deployment Tools: ANT, Maven, Gradle, Gulp, NuGet, MSBuilt, Hudson/Jenkins, uDeploy, BuildBot, Bamboo, Anthill Pro, UrbanCode Build, Electric Commander, Sonar, RTC, TFS, CruiseControl

Version Control Tools: CVS, SVN, IBM Rational Clear Case, Perforce, RTC, GIT, Source Tree

Configuration Management Tools: Chef, Puppet, Ansible, SaltStack

Monitoring Tools: Nagios, Graphite, New Relic, Splunk, Zabbix, IBM Tivoli

Testing Tools: JUnit, JMeter, Cucumber, TestNG, Karma, Jasmine, Selenium

Bug Tracking Tools: JIRA, Bugzilla, Mantis, HP ALM/Quality Center, IBM Rational ClearQuest, Remedy

Databases: Oracle, MySQL, MS SQL, IBM DB2, Teradata, Sybase, Cassandra, HBase, MongoDB, PostgreSQL, Couch DB, Redis

AWS Cloud Technologies: AWS EC2, VPC, EBS, AMI, SNS, RDS, EBS, Cloud Watch, Cloud Formation AWS configuration, S3, Cloud Trail, IAM. VMWare.

Cloud/PaaS/IaaS Technologies: Microsoft Azure, Cloud Foundry, OpenShift, OpenStack, RackSpace, Google Cloud, Stackato

Cluster Environment: Sun Cluster Servers 2.2, 3.1, 3.2 and VERITAS Cluster Servers 4.1

Network Protocols: DHCP, DIG, LDAP, SAN, SAMBA, SQUID, DNS, SNMP, SMTP, Ethernet, IOS, net stat, NFS, NIS, NIS+, nslookup, RIP, OSPF, BGP, TCP/IP, and TCP dump, FTP, TFTP, HTTP, FTP, SSH, RSH, ARP, UDP, SMTP, SFTP

Load Balancers: F5 BIG IP, amazon load balancer, auto scaling, Green and Blue Deployments

Backup Management: Veritas Net backup 4.x/5.x/6.x, UFS dump, UFS restore, TAR, cpio, dd, Tivoli, Symantec NetBackup 7.x

Virtualization: VMWare, Docker, Oracle Virtual Box, VMware VSphere, ESX/ESXi, VCenter Server

PROFESSIONAL EXPERIENCE

Confidential, Dallas, TX

Technology OpS Support Practitioner /DevOps and Chef Automation Engineer

Responsibilities:

• Developed and configured VM’s in Open DCAE, Central DCAE, Mobility and Edge separately in a control platform strategies for various applications according to the agile process.
• Worked on 1707 Production Deployment for Open and Central DCAE along with Edges.
• Done a lot of re-basing, re-deployments and SWM-upgrades on the Docker containers for Open DCAE.
• Responsible for Continuous Integration (CI) and Continuous Delivery (CD) process implementation using Jenkins along with Shell scripts to automate routine jobs.
• Using AWS, Creating, Importing and launching volumes, EC2, RDS, Lambda, security groups, auto-scaling, load balancers (ELBs), NACL in the defined VPC.
• Optimization / cost reduction of Amazon AWS services (EC2, S3, EBS, ROUTE53, and VPC).
• Handled migration of on premises applications to cloud, and created resources in cloud to enable this. Used all critical AWS tools, used ELBs and Auto-Scaling policies for scalability, elasticity and availability.
• Utilized AWS CLI to automate backups of ephemeral data-stores to S3 buckets, EBS and create nightly AMIs for mission critical production servers as backups.
• Worked on the configuration management tool Chef for deploying the codes between different environments.
• Managing AWS infrastructure and automation with CLI and API. Working on Inbound and Outbound services with automation CHEF. Deployed multiple resources simultaneously, using CloudFormation templates in AWS.
• Worked with automation of OS builds and application installations through Chef, Nagios for application and Hardware resource monitoring, worked with plugins in Nagios for monitoring resources.
• Established Chef Best practices approaches to system deployment with tools with vagrant and managing Chef Cookbook as a unit of software deployment and independently version controlled.
• Written multiple cookbooks in Chef, implemented environments, roles, data bags in chef for better environment management.
• Involved in replacing existing manual deployment and management processes with AWS OpsWorks which uses CHEF to automate how servers are configured, deployed, and managed across AWS EC2 instances.
• Written wrapper scripts to automate deployment of Chef Cookbooks on nodes and running the chef client on them in a Chef-Solo environment.
• Implemented Chef Recipes for Deployment on build on internal Data Centre Servers and Also re-used and modified same Chef Recipes to create a Deployment directly into Amazon EC2 instances
• Worked on creation of custom Dockercontainer images, tagging and pushing the images.
• Experience with container based deployments using Docker, working with Docker images, Docker HUB and Docker registries.
• Created and managed a Docker deployment pipeline for custom application images in the cloud using Jenkins.
• To achieve Continuous Delivery goal on high scalable environment, used Docker coupled with load-balancing tool Nginx.
• Openshift virtualized PaaS provider - useful in automating the provisioning of commodity computing resources for cost and performance efficiency.
• Developed the Java based Web Service API's for the application Symantec Workspace Streaming (SWS).
• Developed automation scripting in Python (core) using Chef to deploy and manage Java applications across Linux servers.
• Worked on Version control setups like GIT, Installed, Configured and Administered Hudson/Jenkins Continuous Integration Tool.
• Installation, Configuration and Administration of VMware ESXi, vCenter, Servers and also patching, management and troubleshooting of VMware, and ESX Servers and also install, configure and troubleshoot wintel and windows server domain.
• Implemented monitoring solutions with Elasticsearch and Logstash.
• Configure services such as finger, httpd, iptables, named, sshd, syslog, and logrotate.
• Data Center design and automation, running reports to check for servers that are wasting resources and putting them to task yielding higher efficiency.
• Troubleshot and resolved stale issues that had been plaguing the Data Center for months before my arrival.
• Deployed Java applications in Web sphere application servers.
• Developed and deployed multiple routes by using Red Hat JBOSS Fuse ESB and related Open Source technologies ( Active MQ, Apache )
• Created automation and deployment templates for relational and nosql databases (standalone and RDS), including, Mysql, PostgersSQL, MongoDB in AWS.
• Extracted the data from MySQL, Oracle, SQL Server and loaded data into Cassandra.
• Administer, secure, and maintain multiple Kubernetes clusters to support a global service.
• Operating system installation and configuration (methods including Kickstart, jumpstart), disc partition set-up, patch administration, package management including kernel upgrade
• Responsible for updating patches and packages forUNIX, Linux and Application servers.
• Installed, configured, and maintained services such as FTP, NFS, DNS, DHCP and Samba.

Environment: Red Hat Linux 6.X, 7.X, Windows, AWS, Chef, Jenkins, Hudson, Maven, Docker, Docker Hub, Nagios, EC2, S3, EBS, ROUTE53, VPC, Python, Shell, VMware, Java, Ant, GIT, JIRA, Elasticsearch, Logstash, Packer Chef, Sonarqube, VMware ESXi, Apache Webserver, JBoss, Apache JMETER.

Confidential, Menomonee Falls, WI

DevOps and Automation Engineer/ Sr. Linux and Zabbix Admin

Responsibilities:

• Worked with deploying Jenkins environment for continuous integration/builds in Linux platform.
• Developed and implemented Software Release Management strategies for various applications according to the agile process.
• Implemented AWS solutions using EC2, S3, RDS, EBS, Elastic Load Balancer, Auto scaling groups, Optimized volumes and EC2 instances.
• Experienced with event-driven and scheduledAWSLambdafunctions to trigger variousAWS resources.
• Involved in writing Java API for AmazonLambdato manage some of theAWSservices.
• Involved in automated deployment of EBS and chroot based automated deployments on to the AWS cloud EC2 instance servers.
• Installed and configured an automated tool Puppet that included the installation and configuration of the Puppet master, agent nodes and an admin control workstation.
• Wrote puppet manifests for deploying, configuring, and managing collected for metric collection and monitoring.
• Created and updated puppet manifests and modules, files and packages stored in GIT repository. Responsible for implementing Puppet for applications deployment.
• Creation of Puppet manifest files to install tomcat instances and to manage configuration files for multiple applications.
• Created manifests and deploying using Puppet to completely provision and manage AWS EC2 instances, volumes, DNS, and S3.
• Installed, Configured and Administered Hudson/Jenkins Continuous Integration Tool.
• Performed Branching, Tagging, Release Activities on Version Control Tools: GIT and GITLAB.
• Implement a High Available and Distributed Monitoring as a lead in using Zabbix.
• Setup Zabbix monitoring and performance alerts to alarm and also an operations engineer for responding to all site reliability and operations issues.
• Integrate Zabbix with Jenkins, Jira and ServiceNOW to automate the tasks and issue reporting.
• Train the Devops Teams to use Zabbix for instant health statuses.
• Enabled Continuous Delivery through Deployment into several environments of Development, Test and Production using Maven and Sonarqube.
• Build scripts for self healing to automate event handling in zabbix.
• Integrate Zabbix with Jenkins, Jira and ServiceNOW to automate the tasks and issue reporting.
• Work with various teams to understand, optimize and enable them with Jira.
• Build workflows and agile boards for scrum based project management.
• Migrate the issues and workflows from Vendor Jira instances to Kohls Jira.
• Designed and supervised the expansion of the Data Center for an increase in the number of servers and auxiliary equipment for growth of company and also the increase HVAC.
• Developed shell scripts for automation of the build and release process, developed Custom Scripts to monitor repositories, Server storage.
• Virtualized the servers using the Docker for the test environments and dev-environments needs. And also, configuration automation using Docker containers.
• Created additional Docker Slave Nodes for Jenkins using custom Docker Images and pulled them to ECR.
• Worked on all major components of Docker like, Docker Daemon, Hub, Images, Registry, Swarm etc.
• Managed multi-tiered applications, Self-service clusters and build & versioning of infrastructure using Terraform in tandem with configuration management tools chef and puppet
• Automated the cloud deployments using Puppet, Python and AWS Cloud Formation Templates.
• Maintained Build Related scripts developed in ANT, Python and Shell. Modified build Configuration files including Ant's build.xml.
• To achieve Continuous Delivery goal on high scalable environment, used Docker coupled with load-balancing tool Nginx.
• Created and managed a Docker deployment pipeline for custom application images in the cloud using Jenkins.
• Developed OpenShift container platform on OpenStack and launched web applications to analyse performance of OpenShift containers using Cloudforms monitoring features.
• Build and operate Openshift container platform on AWS for monitoring and metric gathering systems around Openshift using Sensu, Grafana and Prometheus.
• Knowledge in bootstrapping automation scripting for virtual servers, using VMWare clusters.
• Configuration, implementation and administration of VERITAS Cluster Server (VCS), Red Hat Cluster Server (RHCS), and Sun Cluster Server for High Availability.
• Experience in developing the back-end support applications using PHP and MySQL.
• Designed and implemented Spark cluster to analyze Data in Cassandra.
• Migrated tables from SQL Server to Cassandra, which are being used actively till date.
• Worked with Version Control Configuration Management Tools like IBM Rational Clear case, SVN, GIT.
• Worked on Apache and Firewalls in both development and production.
• Installation/configuration of Red Hat 5/6/7 using Kickstart Server and Solaris 10 using Jumpstart
• Worked Logical Volume Management on Linux with LVM Knowledgeable in HTTP, SMTP, FTP, SFTP, DHCP, SNMP TCP/IP, UDP, ICMP, VPN, POP3 protocols.
• Supported environments by running Web Servers (Apache & IIS), Application Servers (WebSphere, Jboss) on LINUX, UNIX and Windows systems.
• Deployed Puppet, Puppet Dashboard, and Puppet DB for configuration management to existing infrastructure. Creating manifests and classes in Puppet for automation.
• Performed and deployed Builds for various Environments like Dev, Test, QA, Integration, UAT, Onboarding and Productions Environments.

Environment: Red Hat Linux 6.X, 7.X, Windows, AWS, EC2, S3, ELB, Lambda, EBS, ROUTE53, VPC, Puppet, Jenkins, Hudson, Maven, Docker, Docker Hub, Zabbix, MongoDB, VMware, GIT, JIRA, ElasticSearch, Logstash, Apache Webserver, JBoss.

Confidential, Columbus, OH

Sr. Linux Admin/ DevOps Engineer/Ansible Automation Engineer

Responsibilities:

• Ensured compliance with Agile (Scrum) and Waterfall methodologies, SDLCs, and change requests.
• Used Agile/scrum Environment and used Jenkins, GitHub for Continuous Integration and Deployment.
• Launched Amazon EC2 Cloud Instances using Amazon Images (Linux/ RHEL) and configuring launched instances with respect to specific applications.
• Created Web App Services and deployed Asp.Net applications through Microsoft Azure Web App services.
• Experience in deploying applications through Microsoft azure also in troubleshooting and deploying applications to azure.
• Installation and configuration of CM related software in UNIX and Windows environments, using UNIX commands and Windows Navigation.
• Written Ansible playbooks for configuration management and multi-machine deployment.
• AWS Ansible Python Script to generate inventory and push the deployment to Managed configurations of multiple servers using Ansible.
• Used a data model (a playbook or role) that's separate from the execution layer (Ansible automation engine) that easily spans heterogeneous network hardware.
• Used Ansible Tower for scheduling playbooks and used GIT repository to store our playbooks.
• Monitoring using Ansible playbooks and has integrated Chef with Jenkins.
• Used Ansible Tower, which provides an easy-to-use dashboard and role based access control, so that it's easier to allow individual teams access to use Ansible for their deployments.
• Used Ansible to manage Web Applications, Config Files, Data Base, Commands, Users Mount Points, and Packages. Ansible to assist in building automation policies.
• Worked on Ansible Playbooks, modules and roles. Wrote playbooks with Python SSH as the wrapper to manage AWS nodes
• Wrote ANT and MAVEN Scripts to automate the Build Process.
• Incident management reports, including initial problem analysis, management status, resolution, and follows up defect reporting in an automated fashion.
• Working on Docker engine to create and use containers; SaaS-based services for creating and sharing Docker services in Docker hub.
• To achieve Continuous Delivery goal on high scalable environment, used Docker coupled with load-balancing tool Nginx.
• Build Docker images; created build and deployment configurations to deploy applications on Openshift.
• Creation of SAN File System on Red Hat Linux using multipath configuration.
• Monitoring servers, capacity planning, application monitoring with the help of Tivoli, HP insight, Nagios, Cacti, Zabbix.
• Developed Test cases manually and generated Automation Scripts using open source tools likeSeleniumWeb Driver, TestNG, Maven and Jenkins.
• Worked onOracle10gRACon RH Linux, adding nodes / maintenance / backup / RMAN.
• Designed and support all internal and client databases through LAMP Stack environment, as well as websites, version tracking software (git), ticket support system and WordPress.

Environment: Linux/Unix, Windows, Ansible, Jenkins, Selenium, Maven, Docker, Zabbix, Nginx, VMware, Hudson, GIT, Windows, JIRA.

Confidential, Charlotte, NC

Sr.Linux Admin/Dev Ops Engineer

Responsibilities:

• Worked on variety of Linux platforms Red Hat Linux Solaris which includes installation, configuring and maintenance of applications on this environment.
• Implemented rapid provisioning and life cycle management for Red hat LINUX using Kickstart.
• Expertise in configuring Red Hat Cluster Nodes for any legacy applications and verified the daily health check on the Cluster Nodes utilizing clusters.
• Scripting in multiple languages on UNIX, LINUX and Windows - Batch, Shell script etc.
• Analysis, design, development, enhancement, testing and maintenance ofLDAPapplications.
• Performance tuning for Web server and along withLDAP Authenticatedfor better response time, low latency and high throughput.
• Provided secure transfer of files, from web browser and web servers using secure socket layer (SSL).
• Accessed remotely all Linux and UNIX servers using a secure shell protocol called SSH.
• Integrate Splunk with AWS deployment using puppet to collect data from all database server systems into Splunk.
• Worked on automated monitoring Hadoop cluster connectivity and security.
• Extensive experience working with Installation and Patch upgrade of Oracledatabase.
• Installation of LAMP stack, caching and server tuning for building cloud server/products.
• Built new Linux server from scratch on theLAMParchitecture. This architecture consisted of an SQL database (Maria DB), PHP 5.4, and Apache.
• Used IAM to create new accounts, roles and groups
• Work with different team members for automation of Release components.
• Resolved system issues and inconsistencies in coordination with quality assurance and engineering teams.
• Troubleshoot the build issue during the Jenkins build process.

Environment: Python/Shell/Perl/Ruby/PHP Scripts, SCM, Ansible, Chef, Maven, ANT, Hypervisor, Stash, Linux, Bash, CloudFormation, VMware, Tomcat Apache, JIRA, GIT, JENKINS, PUPPET, MAVEN, AWS, EC2, WEBSPHERE, ANT, PUTTY, CONFLUENCE, Java, J2ee, SOA, Windows 2012 servers, Windows 2008, IIS 7.0 & 7.5.

Confidential, Madison, WI

Sr. Linux Administrator/Dev Ops Engineer

Responsibilities:

• Worked Primarily on RHEL 4/5, HPUX, and Solaris Operating Systems.
• Text processing, also in network programming with Perl Scripting.
• Involved in migration activities using Redhat LVM, Solaris LVM, Veritas and EMC Open Migrator.
• Performed patching, backups on multiple environments of Solaris, Linux and VMware.
• Performed software troubleshooting and resolved NFS, and TCP/IP network issues.
• Experience using tools such asNetBackup.
• Responsible for implementation of NetBackup, maintenance packs and Net backup versions.
• Proficient inNetBackupinstallation, configuration, creation and maintenance of database.
• Installation of OAS (Oracle Application Server) on Solaris 9 and its configuration with oracle database.
• Manage user accounts for the team access for Red Hat Satellite Server.
• Build channels and pull the packages from master Red Hat Satellite Server.
• Used Pearl, Python and Ruby as scripting language to automate the tasks.
• Deployed Puppet, Puppet Dashboard, and Puppet DB for configuration management to existing infrastructure.
• File system tuning, growing, and shrinking with Veritas File system 3.5/4.x.
• Installed and configured GFS cluster for holding databases.
• Troubleshooting hardware, software and configuration problems for various protocols and topologies.
• Deployed and configured JBoss application server, using java development kit in a binary form, on RHEL platform and configured open LDAP Red Hat Linux systems.
• Created new slices, mounted new file systems and uncounted file systems.
• Troubleshooting the systems and managing LDAP, DNS, DHCP and NIS.
• Worked with different Active directory databases like Microsoft AD, Tivoli Directory server with LDAP.
• Deployed a private cloud infrastructure, using Openstack.
• Created several cookbooks, recipes using Ruby as scripting language
• Involving in installing Chefnode, Workstation server
• Writing Shell and Perl Scripting for automation of job.
• Tuning the kernel parameters based on the application/database requirement
• Worked on making DNS entries to establish connection from server to DB2 database.
• Involved in preparation of functional and system specifications. Estimated storage requirements for applications.
• Involved in 24X7 Production support, Build and Migration Assignments.

Environment: Red Hat Linux (RHEL 3/4/5), Solaris, Logical Volume Manager, Sun & Veritas Cluster Server, Global File System, Red Hat Cluster Servers.

Confidential, Alhambra, CA

Linux Admin

Responsibilities:

• Administered, maintained Red Hat 3.0, 4.0, 5.0, 6.0 AS, ES, Troubleshooting Hardware, Operating System Application & Network problems and performance issues.
• Deployed latest patches for, Linux and Application servers, Performed Red Hat Linux Kernel Tuning.
• Linux kernel, memory upgrades and swaps area. Red hat Linux Kickstart Installation.
• Migrated database applications from Windows 2000 Server to Linux server.
• Installing and setting up Oracle9i on Linux for the development team.
• Experience in implementing and configuring network services such as HTTP, DHCP, and TFTP.
• Deployed and configured load balancing and traffic management, using Microsoft cloud platform Azure.
• Administered Linux servers for several functions including managing Apache/Tomcat server, mail server and MySQL databases in both development and production.
• Responsible for setting upCron jobs scripts on production servers.
• Installed and configured SAMBA server for Windows and Linux connectivity.
• Monitored System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
• Responsible for writing/modifying scripts using sh, ksh, and bash for day-to-day administration.
• Modified Kernel parameters to improve the server performance in Linux.
• Creation of Logical volumes (LVM) for Linux operating systems.
• Installed and configured Apache / Tomcat web server.
• Created users, manage user permissions, maintain User & File System quota on Red hat Linux.
• Bash shell-scripts to automate routine activities.
• Monitored trouble ticket queue to attend user and system calls.
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.
• Diagnosed hardware and software problems and provided solution to them.
• Updated data in inventory management package for Software and Hardware products.

Environment: Red Hat Linux 3.0,4.0,5.0,6.0 AS ES, HP-DL585, Oracle 9i/10g, Samba, VMware Tomcat 3.x,4.x,5.x, Apache Server 1.x,2.x, Bash.

Confidential

LINUX System Admin

Responsibilities:

• Responsible to solve technical Problems related System administration (Linux of Our Clients).
• Managing Red Hat Cluster, HPC environment etc.
• Building & configuring Red Hat Linux systems over the network, implementing automated tasks through crontab, resolving tickets according to the priority basis.
• Installing and configuring Red Hat Linux locally or over the network-kick start- (nfs, ftp, and http).
• Maintaining and Troubleshooting of FTP Server, Samba Server of the client
• Maintain 99.98% uptime of LINUX production servers and follow proper escalation.
• Handling LVM related tasks, Creating, resizing LVM, Veritas Volume manager and also managing Cluster environment using Veritas Cluster suite.
• Handling the day-to-day Operations, Troubleshooting& Solve Server Problems in LINUX.
• User Administration (setup and maintaining accounts).
• Maintaining Server and Systems, provide IT support to User.
• Monitoring system performance, Server load and bandwidth issues.
• Installing open source application, search, analyze and develop new application for users.
• Updating Systems, Servers and client software's.
• Implement the policies for the users of the computer system and network.
• Regularly manage backup process for Server and Client data.

Environment: Centos 5.7/6, Redhat Linux 5.7/6, Ubuntu 10.04/10.10/11.10, Fedora 17