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Unix/linux Administrator Resume

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MN

SUMMARY

  • Experience of 7+ years as a DevOps/Cloud/Build and Release engineer in application configuration, code compilation, packaging, building, automating, managing and releasing code from one environment to other environment and deploying to servers.
  • Excellent understanding of SDLC Methodologies like Agile, Waterfall, RAD and DevOps/Cloud processes.
  • Experience in administering and automating operations across multiple platforms (UNIX, Linux, and Windows).
  • Experience in installing, configuring, supporting and troubleshooting Unix/Linux Networking services and protocols like NIS, NIS+, LDAP, DNS, NFS, DHCP, NAS, FTP, SSH and SAMBA.
  • Experience in Installing, configuring and maintaining Samba,Apache, Web Sphere & Web Logic Application Servers, as well as Puppet, Chef and Ansible.
  • Experience in working on version control systems like Subversion and GIT and used Source code management client tools like SVNx, BitBucket, SourceTree, Git Bash, GitHub, GitLAb, Git GUI and other command line applications etc.
  • Work closely with the Mesosteam for maintenance and feature release and upgrades.
  • Contributor to the Apache Mesosopen source project.
  • Setup Chef Server, workstation, client and wrote scripts to deploy applications.
  • Extensive experience using MAVEN and ANT as a Build Tools for the building of deployable artifacts (war & ear) from source code.
  • Coordinated with security, development, and operations team to migrate to Docker containers onKubernetes.
  • Working for DevOps Platform team responsible for specialization areas related to Chef for Cloud Automation.
  • Extensively worked on Hudson/Jenkins and Bamboo for continuous integration and also for End to End automation for all build and deployments.
  • Experience in Open Stack cloud, integrating it with Puppet.
  • Experience with managingJIRAin highly available environment.
  • ImplementingJIRA,JIRAAgile and Confluence best practices.
  • Developed automation code using Opscode Chef to build Open stack environments autonomously and Created Roles for deployment of Infrastructure using Opscode.
  • Experience with configuration management tool like Ansible.
  • Hands on experience of Build & Deployment phase and usage of Continuous Integration (CI/CD)
  • Experience in Configuring and deploying to Web/Application servers Apache, Tomcat, Jboss, WebLogic and Web Sphere.
  • Installing and configuring the Terraformand building the infrastructure using Terraformconfiguration file.
  • Built Jenkins jobs to create AWS infrastructure from GitHub repos containing Terraformcode.
  • Experience in using Tomcat web servers for deployments and for hosting tools.
  • Strong experience inIBMWeb Sphere Administration and setting upIBMWeb Sphere Application Servers in the development, testing and production environments.
  • Experienced in Installing and ConfiguringIBMWeb SphereMQV5.2/5.3, creating local queues, remote queues, creating channels and installed client software on AIX, Solaris and Windows Platforms.
  • Written the Python Plugin for collected to write metrics to state and also Developed Python and shell scripts for automation of the build and release process.
  • Experience with unit testing using Junit and writing build scripts usingANT.
  • Proficient in shell scripting (Ksh/Csh/bash/Sed/Awk), PERL, Java Scripts for Oracle and Java Applications and XML.
  • Worked on Classic and Yarn Distributionof Hadooplike the Apache Hadoop2.0.0, ClouderaCDH4 and CDH5.
  • Expertise with configuration management automation tool Ansible and has worked on integrating Ansible.
  • Conceived, Designed, Installed and Implemented CI/ CD automation system.
  • Experience with the Configuration on BIG IP (F5)Loadbalancersand monitored the packet flow.
  • Configured High availability and implemented it onF5Loadbalancer.
  • Strong Knowledge in implementation of enterprise storage solutions SAN (created VGs and LVs on san disks), NAS (mounted and shared NAS devices for NetApp servers).
  • Expertise in Querying RDBMS such as Oracle, MY SQL and SQL Server by using SQL for data integrity and also other open source DBMS like Cassandra.
  • Good knowledge on Virtualization Windows, Linux (Containers (Docker) and Hypervisors ESXI), Solaris (zones, containers and Ldoms), AIX (lpar & dlpars).
  • Excellent knowledge of Amazon EC2, Amazon S3, Amazon Elastic Load Balancing and other services of the AWS family.
  • Experience in working testing platform Selenium Grid using cucumber, protractor in E2E testing.
  • Responsible for Continuous Integration (CI) and Continuous Delivery (CD) process implementation using Jenkins along with Shell scripts to automate routine jobs.
  • Worked on the programming models like Map and Reduce as well as on UML class Diagrams.
  • Experience with Cisco networking devices like Routers/Switches. Software package deployment, disaster recovery/contingency of business management.
  • Strong in Linux / UNIX SA (CentOS/ RedHat, SuSe, Solaris, AIX) Monitor, maintain, if necessary troubleshoot / fix, production infrastructures and 3rd party vendors / carriers.
  • Installed, Configured, Managed Monitoring Tools such as Splunk, Nagios, iCinga for Resource.
  • Had an experience on working open source platform SonarQube.
  • Monitoring/Network Monitoring/Log Trace Monitoring.
  • Had an experience with Functional test tool Selenium IDE.
  • Independent problem solving and a good team player with strong interpersonal and communication skills.
  • Experience supporting 24x7 production computing environments. Experience providing on - call and weekend support.

TECHNICAL SKILLS

Operating Systems: RHEL & CentOS 4.X, 5.X, 6.X & 7.X, Solaris 10, AIX 6, 7, SuSe 10, 11.

Languages: C, C++, C# SQL, JAVA/J2EE, .NET UNIX Shell, Java Script, AngularJS, Perl and Python.

Versioning Tools: Subversion Clear case, GIT and Perforce.

Build Tools: ANT, MAVEN, CI/CD

CI Tools: Hudson/Jenkins, Bamboo

Automation Tools: Puppet, Chef, Docker, Ansible, Jenkins, Splunk, ICinga

Web/App servers: Apache, Web Sphere, WebLogic, Jboss, Tomcat

RDBMS: Oracle, SQL SERVER, MY SQL, DB2, Cassandra.

Networking Services: SNMP, SMTP, TCP/IP, IPX/SPX, OSPF, BGP, IGRP, EIGRP, PPP,DNS.S, SLIP, UUCP, X. 25, LAN, WAN, ARP/RARP, FTP/TFTP, DHCP, NIS, NIS+

PROFESSIONAL EXPERIENCE

Confidential, Pittsburgh, PA

Senior AWS / DevOps Engineer

Responsibilities:

  • Involved in designing and implementing CI (Continuous Integration) system: configuring Jenkins servers, Jenkins nodes, creating required scripts, and creating/configuring VMs (Windows/Linux).
  • Migrated and maintained build and test environments into the Cloud Infrastructure.
  • Assisted developers with establishing and applying appropriate branching and naming conventions using Subversion (SVN) and Git source control.
  • Analyzed and resolved conflicts related to merging of source code for SVN and Git.
  • Work with development/testing, deployment, systems/infrastructure and project teams to ensure continuous operation of build and test systems.
  • Worked onDockermachine to installdocker-engine on managed virtual hosts in the data center.
  • Worked onDockerKitematic to build and run containers on the local environment.
  • Integrated manomarksdocker-swarm Visualizer to the swarm cluster.
  • Involved in developing custom scripts using Python & Shell (bash, ksh) to automate jobs.
  • Managed Git repository, code merging, and production deployments.
  • Designed highly available, cost effective and fault tolerant systems using multiple EC2 instances, Auto Scaling, Elastic Load Balance and AMIs.
  • CreatedTerraformscripts to move existing on-premises applications to cloud.
  • Configured Jenkins job to spin up infrastructure usingTerraformscripts and modules.
  • CreatedTerraformscripts for EC2 instances, Elastic Load balancers and S3 buckets.
  • Developed and supported key pieces of the company's AWS cloud infrastructure. Built and managed a large deployment of Ubuntu Linux instances systems with Opscode
  • Created Chefcoding best practices for existing development team.
  • Configuring of Virtual Servers, Pools, Nodes andloadbalancing methods onF5LTM.
  • Worked on upgradingF5device from 11.4 to 11.5.3 to remediate HTTP classes and profiles and Upgrading and relicensedF5LTM.
  • Configuration, migrations, upgrades ofF5Big IP LTM 3400, 6400, 8900 running v4.x to 10.2.x, Active/Standby.
  • Debug existing automation code and test to confirm functionality within AWS/EC2
  • Coach, mentor and train developers in OpscodeChefand autonomously provisioning instances in a virtual environment.
  • Responsible for Installing, configuring and supportingWebSphereapplication server, and WebLogic server 11g,IBMMQon UNIX, LINUX, AWS and Windows.
  • Utilized EBS to store persistent data and mitigate failure by using snapshots.
  • Creating the project blueprint with git and implementing the Server application with Routing algorithms as middleware inNode.js.
  • Designed AWS CloudFormation templates to create custom sized VPC, subnets, NAT to ensure successful deployment of Web applications and database templates.
  • Designed roles and groups for users and resources using AWS Identity Access Management (IAM) and also managed network security using Security Groups, and IAM.
  • Implemented bamboo for Continuous Integration Builds and Notifications.
  • Written Shell scripts to automate deployments via Bamboo and Control tier that are built by maven.
  • Automated Deployments in Lower Environments using Bamboo and Control tier.
  • Responsible for writing frameworks Data Driven, Page Object and Cucumber from scratch to perform automation testing for web applications.
  • UsedANTfor dependencies and configuration management.
  • DevelopedANTscripts for the build and deployment of J2EE components in application server.
  • Provide highly durable and available data by using S3 data store, versioning, lifecycle policies, and create AMIs for mission critical production servers for backup.
  • Taken Snapshot of the Production RDS server and restored an encrypted version of it with an higher instance size.

Environment: AWS (EC2, Elastic Beanstalk, S3, Glacier, RDS, ElastiCache, VPC, Route 53, CloudFormation, IAM, CloudWatch), Linux, Java, GitHub, SVN, Shell scripting, JIRA, New Relic, Splunk, SaltStack.

Confidential - Minneapolis, MN

AWS / DevOps Engineer

Responsibilities:
  • Coordinated/assisted developers with establishing and applying appropriate branching, labeling/naming conventions using Subversion (SVN) source control.
  • Automated the release pipeline to achieve zero touch deployments using Jenkins, Nexus.
  • Created deployment workflows which includes pre release, release and Post release steps.
  • Analyzed and resolved conflicts related to merging of source code for SVN.
  • Implement, maintain and support reliable, timely and reproducible builds for project teams.
  • Maintained build related scripts developed in shell for Maven builds. Created and modified build configuration files.
  • Deployed and maintained Chef role-based application servers, including Apache, Resin, Nginx and Tomcat.
  • Integrated Maven/Nexus, Jenkins, with Patterns/Release, Git Confluence, Jira and Cloud Foundry.
  • Worked on MySQL High Availability solutions like MySQL Cluster.
  • Designed and optimized MySQL databases by using MySQL GUI Tool.
  • Migrated from ad hoc servers to servers under automatic control of Ansible.
  • Worked with multiple development teams to troubleshoot and resolve issues.
  • Wrote Python scripts for pushing data from Mongodb to MySQL Database.
  • UsedTerraformscripts to Automate Instances for Manual Instances that were launched before.
  • Extensively involved in infrastructure as code, execution plans, resource graph and change automation usingTerraform.
  • Managed AWS infrastructure as code usingTerraform.
  • Expertise in writing new plugins in order to support new functionality inTerraform.
  • Provisioned the highly available EC2 Instances usingTerraformand cloud formation.
  • Setting up the build and deployment automation forTerraformscripts using Jenkins.
  • Involved in usingTerraformand Ansible, migrate legacy and monolithic systems to Amazon Web Services.
  • Designed highly available, cost effective and fault tolerant systems using CloudFormation using multiple EC2 instances, Auto Scaling, Elastic Load Balancers.
  • Utilized EBS to store persistent data and mitigate failure by using snapshots.
  • Designed AWS CloudFormation templates to create custom sized VPC, subnets, NAT to ensure successful deployment of Web applications and database templates.
  • Designed roles and groups for users and resources using AWS Identity Access Management (IAM).
  • Provided highly durable and available data by using S3 data store, versioning, lifecycle policies, and create AMIs for mission critical production servers for backup.
  • Design hybrid AWS Route 53 andF5loadbalancing solutions.
  • Create LTM/GTM traffic management configurations. Troubleshootloadbalancing issues.
  • Utilized Amazon Glacier for archiving data.
  • Managed network security using Security Groups, and IAM.
  • Used Amazon RDS to manage, create snapshots, and automate backup of database.
  • Worked with development/testing, deployment, systems/infrastructure and project teams to ensure continuous operation of build and test systems.
  • Deployed code on Weblogic Application Servers for UAT, IST, and Development environments.
  • Worked on the Oracle databases in the backend to execute the DMLs and DDLs.
  • Owned full lifecycle of build system - from analysis, development, implementation and support of builds, unit testing and deployments.
  • Implemented test automation for web application (SWAP module) using Cucumber.
  • Responsible for performance issues. OptimizedANTbuilds scripts for faster building and worked on modifying shell scripts.
  • Interacted with developers and Enterprise Configuration Management Team for changes to best practices and tools to eliminate non-efficient practices and bottlenecks.
  • Coordinated with Release Management regarding appropriate system releases among other development platforms.

Environment: AWS, Ant, Java, Maven, SVN, Jenkins, Chef, Linux, Solaris, WebSphere, Shell scripting, WLST, Nexus.

Confidential

Build and Release Engineer

Responsibilities:

  • Developed Python and shell scripts for automation of the build and release process.
  • Involved in editing the existing MAVEN files in case of errors or changes in the project requirements.
  • Responsible for the development and maintenance of processes and associated scripts/tools for automated build, testing and deployment of the products to various developments.
  • Created and maintained the Shell/Perl deployment scripts for Web Logic web application servers
  • Experience in working on Microsoft .NET Technologies using VB.NET & C# along with Install Shield
  • Managed Maven project dependencies by creating parent-child relationships between projects.
  • Installing, configuring and administering Jenkins CI tool on Linux machines.
  • Hands on experience of Build & Deployment phase and usage of Continuous Integration (CI/CD)
  • Jenkins is used as a continuous integration tool for automation of daily process.
  • Installed and Managed Nexus Private repository manager for handling dependency management.
  • Used JIRA for change management and bug tracking.
  • Automated the JIRA tasks using Jira cli and perl.
  • Configured Ansible Automation tool on Ubuntu while include ssh-keygeneration, Creating inventory files, Group customization, Creating roles & amp; playbooks
  • Developed and implemented Software Release Management strategies for various applications according to the agile process.
  • Integrated delivery (CI and CD process) Using Jenkins, Nexus, Yum and Chef.
  • Imported and managed multiple corporate applications into Subversion (SVN).
  • Involved in all projects that move to production and work closely with the Data Center, Development, Quality Assurance and Management teams to ensure cross communication and confirmed approval of all production changes.
  • Written Shell and PowerShell scripts to automate deployments in Bamboo.
  • On boarded new applications into Stash and Bamboo.
  • Provided end-user training for all Subversion (SVN) users to effectively use the tool.
  • Had an experience working with the Enterprise storage SAN and NAS
  • Developed build and deployment scripts using MAVEN as build tool and automated the build and deploy processes using Jenkins to move from one environment to other environments.
  • Built programming models with map and reduce and also Designed UML class diagrams

Environment: SVN, Maven, Jenkins, CI/CD, Tomcat, Nexus, Python, Shell Script, JIRA, SOAP, JSP 1.2, JavaScript, AngularJs, JQuery, DOJO, CSS, AJAX, DWR, XML, XSL

Confidential

Unix/Linux Administrator

Responsibilities:

  • Developed and applied advanced methods, theories and research in the UNIX environment
  • Cross train with developers to understand and help automate weekly processes (using DevOps model)
  • Evaluated and deployed network monitoring tool on RHEL (OPENNMS)
  • Managed Cisco Wireless routers within enterprise environment.
  • Deployed Foreman on Puppet Master server to manage Linux Systems within virtualized environment
  • Managed and maintain several Linux Windows servers in a heterogeneous wireless computing environment
  • Monitored windows … Server environments
  • Modified DNS, DHCP configurations
  • Utilized Netsight to enable/disable ports, troubleshoot switches and maintain Vlan configurations on 200+ sites
  • Troubleshoot VPN issues, created documentation for each error code resolution
  • Introduced Linux servers to the domain using SAMBA WINBIND
  • Developed strategies to manage the frequency of appropriate support package/patch application.
  • Monitored database maintenance and provides appropriate recommendations, when required. Implemented solutions and refines procedures as appropriate
  • Maintained active directory infrastructure
  • Created and managed packages for Adobe CS6 and Adobe CC via Adobe Package builder

Environment: Solaris 8,9, Redhat Linux 9, AS 3.0, Veritas Volume Manager 3.x, 4.0, Veritas Cluster Server 4.1, Cisco Routers, Sun 4800, V480, 280R, 4500, 3500, Redhat 8, 9, Suse 10,11

Confidential

System Administrator

Responsibilities:

  • Installation, Configuration, up gradation and administration of Sun Solaris, RedHat Linux.
  • User account management and support.
  • Jumpstart & Kick-start OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SSH, LDAP integration.
  • Responsible for configuring and managing Squid server in Linux.
  • Configuration and Administration of NIS environment.
  • Managing file systems and disk management using Solstice Disk suite.
  • Involved in Installing and configuring of NFS.
  • Package and patch management on Sun servers.
  • Kernel tuning, Writing Shell scripts for system maintenance and file management.
  • Worked on Solaris volume manager to create file systems as per user and database requirements.
  • Trouble shooting the system and end user issues.
  • Responsible for configuring real time backup of web servers.
  • Log file was managed for troubleshooting and probable errors.
  • Responsible for reviewing all open tickets, resolve and close any existing tickets.
  • Document solutions for any issues that have not been discovered previously.

Environment: Sun Solaris 2.6/7, SUN Ultra Enterprise 6000/450, SUN Ultra 10/5/2/1, Windows NT4.0, RHEL 3.x.

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