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Linuxengineer/devopsengineer Resume

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Jacksonville, FL

PROFESSIONAL SUMMARY:

  • More than 8 years of experience working as a System Administrator/Engineer and DevOps Engineer wif maximum engagement on various OS platforms including RHEL 6.x, 7.x, Cent OS 6 & 7 and Windows environment as well as working on Configuration Management, Change/Release/Build Management.
  • Excellent noledge of software development life cycle (SDLC) and project management.
  • Expert wif installation, configuration, administration and troubleshooting of RHEL 6.x,7.x Servers.
  • Hands on Agile/Scrum development.
  • Exposure to virtualization processes using products like VMware ESXi Server 4.x/5.1/5.5 vSphere 5.1, 5.5 and KVM based hypervisors.
  • Adoption of the RedHatOpenShifttechnologies.
  • Edit and manage the creation of relevant content for theOpenShiftonline channels.
  • Possess hands - on experience wif the VMware ESX Server, VMware Virtual Centre, VMware HA, VMware DRS, and VMware Consolidated Backup (VCB).
  • Experienced wif AWS cloud wif exposure to AWS components like EC2, S3 Buckets, EBS, Apigee, ELB, Elastic Beanstalk, AMI, EBS cloud watch, Auto-scaling and IAM.
  • Hands-on experience in physical installation of Operating Systems using DVD and Network, and strong understanding of Virtualization technologies, that include installing, configuring, and administering Red Hat environment using KVM based hypervisors.
  • UpgradedCICDsystems to .Net Core 2.0 and Docker 17.06 and provided corresponding Ansible Playbooks.
  • Expertise in back-end/server sidejavatechnologies such as: Web services,Javapersistence API (JPA),JavaMessaging Service (JMS),JavaData Base Connectivity (JDBC),JavaNaming and Directory Interface (JNDI).
  • Worked wif various DevOps tools like Puppet, Chef, Ansible, Apigee for Configuration management Jenkins for Continuous integration, Maven & ANT for Build & compilation, Apache SVN & GIT for Version/Source control and CI/CD deployments.
  • ScriptingIaaCusing Terraform and cloud formation.
  • Uses GIT, Acquia Cloud.
  • Improved vendor administration by offering direction and coordination wif vendors to ensure IPS practices and policies are properly applied toNPMprocurement activities
  • Served theELKstackcommunity wif use cases and logstash plugin and actively participated in blogs and Q and A’s.
  • Used theAWS-CLIto suspend anAWS Lambdafunction processing anAmazon Kinesis stream, tan to resume it again.
  • DesignRedShiftbased BI solution platform for optimized performance and usability.
  • Define, monitorRedShiftdatabase performance metrics and resolve bottlenecks.
  • Involved in designing AmazonRedShiftDB Clusters, Schema, and tables.
  • Hands-on working noledge on Puppet Master and Puppet agents and defined both to manage and configure nodes.
  • Created Puppet Modules and Manifests as per the client requirements.
  • Worked wif puppet to configure and monitor distributed and multiple platform servers.
  • Used Jenkins and Gradle to implement end to end automation.
  • Experienced in writing various scripts like Ruby, python, Bash and shell and Chef Recipes and cookbooks to automate build and deployment process.
  • Built deployable artifacts like war and jar from source code using build tools like Maven and ANT.
  • Involved in configuration automation using Docker containers, used Docker to virtualize the servers.
  • Tenacious acquaintance wif RAID using Hardware RAID and Software RAID on Red Hat Linux.
  • Everyday working experience in performing Jumpstart/Kickstart installations for Red Hat Linux and AIX Servers.
  • Managing user accounts, analysing security, rights, dealing wif password ageing, permissions, unused accounts issues and managing disk space and monitoring process in Red hat Linux.
  • Installation, Configuration, troubleshooting and administration of DNS, DHCP, NIS, NFS, LDAP, SAMBA, postfix, ftp Server in a heterogeneous environment.
  • Linux container orchestration wif Docker,Kubernetes, CoreOS, etcd, and more,
  • Experienced in upgrading ILO Firmware, BIOS and troubleshooting hardware issues from ILO.
  • Worked on creating local LDAP users and resolving frequent User Permissions issues. Updated Patches and Packages using Automation tools and Commands.
  • Performed all the Maintenance and Auditing tasks during Maintenance window. Expert in following all the Enterprise Process and Procedures during Change Management, Maintenance windows, migrations and upgrades.
  • Possess working noledge in Troubleshooting Hardware, Storage, Application Bottlenecks, System Recovery, Crash dump analysis, logs analysis and Performance Tuning.
  • Exposure to various monitoring tools like vmstat, iOS tat, free, netstat and top.
  • Expertise in convertingAWSexisting infrastructure to server less architecture(AWS Lambda,Kinesis) and deployed viaTerraformorAWS Cloud formation.

TECHNICAL SKILLS:

Operating Systems: Linux (Red Hat & SUSE), HP-UX 11.0, 11.11, 11.23, 11.31, IBM AIX (4.3/5.x/6.x/7), SLES 8,9,10 & 11, Ubuntu, Windows NT /2003/2008.

Configuration Management: Puppet, Chef, Ansible, CICD.

Build, Automation and version control: Maven, Ant, Jenkins, Gradle, Hudson, GIT, Gradle, SVN, Docker.

Cloud Platforms: AWS Cloud, Azure, Rackspace, Open stack, Private cloud.

Hardware: HP ProLiant DL 380, 580, 480 G4, G5, G6 &G7 servers, HP Blade Enclosures C7000 & C6000, IBM P550, 650, 660, Dell PowerEdge 2800, r310, r410, r710, Intel Servers, Extreme network and Cisco switches, Brocade Switches, A1000, A5200, 3510, 3511, D1000, Sun Store Edge T3, 9980

Networking: TCP/IP, NIS, NFS, DNS, DHCP, Cisco Routers/Switches, WAN, SMTP, LAN, FTP/TFTP.

WEB Technologies: Tomcat, APACHE 2.x, 3.x, Web Logic (8/9/10) & Web Sphere 4.0/5.0, IIS6.0/7.0, C, UNIX Shell Scripting, Perl Scripting, HTML, Perl, VB.

Programming Languages: C, UNIX Shell Scripting, Perl Scripting, HTML, Perl, VB

Backup Management: NetBackup, Ufsdump, Ufsrestore, tar, cpio, dd, Tivoli

Third Party Software: VERITAS Volume Manager, EMC Storage, RAID Technologies, SSL, Double-Take, BMC Blade Logic. Redhat Satellite.

Protocols: TCP/IP, UDP, RIP, OSPF, EIGRP, IGRP, SNMP, SMTP, TELNET.

PROFESSIONAL EXPERIENCE:

Confidential, Jacksonville, FL

LinuxEngineer/DevOpsEngineer

Responsibilities:

  • Installed configured and managed Puppet Master and Agents.
  • Integrated puppet wif Apache and worked wif Puppet enterprise and Puppet Open Source.
  • Maintained and troubleshoot servers regularly and organized Linux infrastructure.
  • Oversaw migration of RHEL 5 to RHEL 6 and 7 and building of new servers.
  • Deployed Puppet, Puppet Dashboard for configuration management to existing infra and managed virtual instances and disks using puppet.
  • Azure infrastructure management &PaaSSolution Architect - (Azure AD, Licenses, Office365, DR on cloud using Azure Recovery Vault, Azure Web Roles, Worker Roles, SQL Azure, Azure Storage)
  • Selling -winning UCaaS,SaaS,IaaS, MPLS, Access, hosted and Integrated VoIP and cloud-based solutions to SMB and Enterprise size organizations across the US.
  • Reviewed OpenShiftPaaS product architecture and suggested improvement features after conducting research on Competitors products.
  • DevelopCI/CDsystems using CodePipeline, CodeCommit, and CodeDeploy.
  • Configuring, and Deploying Chef, Puppet andAnsiblefor configuration management to existing Infrastructure.
  • Very Good understanding and Working Knowledge of Object Oriented Programming(OOPS), Python andScala.
  • Involved in the process of data acquisition, data pre-processing and data exploration of telecommunication project inScala.
  • Worked on AWS cloud creating and managing instances.
  • Responsible for triaging issues encountered during the download and conversion process from SLED toUbuntuon restaurant machines.
  • Developed a system to monitor Agile teams and performed log analysis onELKstack.
  • Handled installation, administration and configuration ofELKstackon AWS and performed Log Analysis.
  • Preformed command line functions inUbuntuand SLED.
  • Created visualization on kibana based on the requirements.
  • Created scrum team monitoring charts on kibana.
  • Build servers using AWS includes importing necessary volumes, launching EC2 instances, S3 for object static webpages and created security groups, auto scaling, load balancer, Route 53 and SNS as per architecture usingIAACtools like Cloud formation JSON Templates.
  • Streamlined installation ofOpenShifton partner cloud infrastructure such as AWS and Azure.
  • Migrating Services from On-premise toAzureCloudEnvironments. Collaborate wif development and QA teams to maintain high-quality deployment.
  • Performed Service Level Testing for Web services using Soap UI, Postman andApigee.
  • Implemented a Docker delivery pipeline allowing forCI/CDof Java tomcat web service containers.
  • Performed the task of data transfer from files in remote server to folders in another server using FTP.
  • PowerShelldeployment of various Microsoft management service.
  • Managed Jenkins forCI/CDin a multiple VPC AWS environment for Java and Node JS
  • Worked on Migrations andTFS2017 Upgradations and implementing POC forTFS2018.
  • Trained Developers to useTFS.
  • ManagingTFSbuild processes and recommend changes to the build environment,
  • Deployed and Managed application in AWS cloud and established connectivity between Aapigee, EC2-instance and the applications.
  • Maintain stability, performance, & reliability of a changing VOD CDSTV/CDNPlatform
  • Experience in Creating Data Access Layer using ADO.Netand ADO.NetEntityFrameworkto communicate wif the Databases like MS SQL Server, PostgreSQL, mongo DB, Oracle and MS Access.
  • Worked in creating complex views inRedshiftand importing them to tableau for generating the reports.
  • Worked in creating complex views inRedshiftand importing them to tableau for generating the reports.
  • Migrated views and Tables from SQL to AWSRedshiftsuccessfully despiteRedshiftwif different compatibility in querying.
  • Implemented AES solutions using Apigee, EC2, S3, Elastic Load Balancer and Auto scaling
  • Created custom AMI based on preexisting EC2 instances wif image functionality.
  • Created AWS Launch configuration as per the custom AMI and used the AWS lunch to configure auto scaling groups.
  • Created functions and assigned roles in AWS Lambda to run python scripts, and AWSLambda using java to perform event driven processing.
  • Developed ITSM roadmap for implementing processes utilizingITILbest practices
  • Assisted in the evaluation of alternativeNPMproducts, services and suppliers. Assist in the development of keyNPMcommodity strategies at the local and global levels.
  • UsedAnsibleandAnsibleTower as Configuration management tool, to automate repetitive tasks, quickly deploys critical applications, and proactively manages change.
  • Wrote Python Code usingAnsiblePython API to Automate Cloud Deployment Process.
  • Developed Python Modules forAnsibleCustomizations.
  • UtilizedMulesoftfeatures like Data weave, API designer and various connectors to ensure robust and loosely coupled integration layer every time.
  • Created marketing collateral to get partners onboardOpenShiftMarketplace.
  • Aggressive monitoring of partitioning versus topic production via JMX interface(s); developedKafkastandalonePOC's wif the Confluent Schema Registry, Gradle, Rest Proxy,KafkaConnectors for Cassandra and HDFS (Hadoop 2.0);CustomKafkabroker design to reduce message retention from default 7-day retention to 30-minute retention - architected a light weightKafkabroker peak period for proprietary IoT device analytics plafotom for 4G LTE KI indicator (over 200); researched and codified the Kafka Consumer using KafkaConsumerAPI0.10 and KafkaProducerAPI0.10 (Java); designed
  • Implemented and Enhanced the Existing Scripts using Ruby, Python, BASH, Perl, and SQL.
  • Performed installation and provide support for various applications like WebLogic server 9.x, JBoss 4.x, Apache Tomcat 6.x, and Oracle 9i, 10g, in RHEL 6.x, 7.x.
  • Worked wif Docker andKuberneteson multiple cloud providers, from halping developers build and containerize their application (CI/CD) to deploying either on public or private cloud.
  • Development of automation ofKubernetesclusters wif Ansible, writing playbooks.
  • Using Docker, Jenkins, VMWare, RHEL,Kubernetes, Artifactory, Ansible & GitLab.
  • Implemented CI/CD pipeline wif Jenkins, Docker and GitHub.
  • Created parent - child relations between projects to manage Maven and Gradle dependencies.
  • Exclusively used JIRA for bug tracking and as a ticketing tool.
  • Used SVN, GitHub to analyze and resolve the conflicts related to merging of source code and maintained history for all the repos in Version control tool itself.
  • Used Docker to virtualize the servers for test environment and used Docker container for configuration automation.
  • Worked on branching, tagging and release using SVN and GIT.
  • Implemented continuous integration configured Jenkins servers and nodes.
  • Created and maintained user accounts on NIS environment. Scheduled the Jobs using CRON tab.
  • Installed and Configured VMWARE ESX servers and Created RHEL Guest VM’s for Dev/ Test and production environment.
  • Created RAID 1, 01 configurations on hardware RAID devices and RAID 10, 5 using SVM, LVM, and VxVM.
  • Maintained Volumes and File systems for Oracle, MySQL, DB2, and Sybase databases.
  • Used VxVM to add disk, create new disk groups, logical volumes, resize, deport and import disk groups between servers.
  • Attended team and change control meetings to update installation progress and upcoming changes.

Environment: Red Hat Enterprise Linux 5.x,6.x,7.x, GitHub, SVN,Java7/8, Ubuntu, Debian, on HP ProLiant DL320e G8,360 G9, Cisco UCS 5108, Kafka, Cisco UCS C240, Dell PowerEdge R820, Version One, Paas, TFS, FTP, Dell PowerEdge R720xd, TCP/IP, HTTP, AWS, SCALA, EC2, S3, Open Shift, VisualStudio, RedshiftPuppet, ELK Stack, Kibana, Auto scaling, Docker, Jira, PowerShell, Maven, Gradle, CI/CD, Ant, Jenkins, Brocade-Routers/Switches, Storage, EMC, Apigee

Confidential, Minneapolis MN

Linux Engineer/DevOps Engineer

Responsibilities:

  • Managed and administrated all Linux OS and UNIX servers by applying relative patches and packages at regular maintenance periods using Red Hat Satellite server, YUM, RPM tools.
  • Planned and performed the Linux OS upgrades and hardware maintenance like changing memory modules, disk devices, SAAS, SATA & SCSI devices.
  • Edit and manage the creation of relevant content for theOpen-Shiftonline channels.
  • Monitored CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems and network using tools like NAGIOS.
  • Performed Log analysis usingELKstackand created monitoring charts.
  • Completed POC forCICDusing AWS Code Pipeline coordinatedKafkaoperation and monitoring (via JMX) wif dev ops personnel; formulated balancing
  • Managed servers on theAWSWeb Services platform instances using Chef.
  • Worked on setting up and configuring AWS's AMAZON EMR Clusters.
  • Involved in loading data from On-premises data warehouse to AWS's Cloud using different approaches like Sqoop, Spark, storm andAWSServices.
  • UsedAnsible and GradlePlaybooks to setup Continuous Delivery Pipeline. Deployed micro services, including provisioning AWS environments usingAnsiblePlaybooks.
  • UsedGradleto document all infrastructures into version control.
  • Worked on setting up and configuringAWSRedshift.
  • Provided management, direction, administration, quality control, and leadership for HUD ITSM/ITILprogram
  • Managed deployment automation using Puppet, Hiera, and Custom Puppet modules, Ruby.
  • Used Puppet for managing server application server such as Apache and MySQL.
  • Implemented Puppet Manifests for Deployment on build on internal Data Centre Servers. Also, re-used and modified Puppet Manifests to create a Deployment directly into Amazon EC2 instances.
  • Evaluated testing of Puppet Manifests - Concept of Test Driven Development for Infrastructure as a Code. Implemented Puppet Modules for OS component configuration to keep AWS server's template minimal.
  • Wrote Puppet Modules for various DB configurations to modularize and optimize product configuration.
  • Implemented a Continuous Delivery framework using Jenkins, Puppet, Maven& Nexus in Linux environment.
  • Used SVN for branching, tagging and release, also used Tortoise SVN for version control in windows.
  • Installed and configured Red Hat 5.x/6.x on Dell Power Edge server, VMware ESX server on Dell Servers and configured SUSE 11.x Red Hat Linux 5.0, 6.0 / Windows virtual machines for various applications.
  • Supported and developed tools for integration, automated testing and release management.
  • Used Anthill pro as Continuous Integration (CI) server.
  • Used slick to query and storing in database in aScalafashion using the powerfulScalacollection framework.
  • Virtualized the servers using Docker for the test environments and dev-environments needs. Worked on configuration automation using Docker containers.
  • Deployed built artifacts into Tomcat instances and were integrated using the Perl and Shell scripts.
  • Worked on build and deployment of Java application to various client environments.
  • Used build management tools like Ant and Maven to write build. xmls and pom. xmls.
  • Handled issued related to NFS, Auto Mount, DNS, LDAP.
  • Identified, troubleshoot, and resolved problems wif the build process
  • Installed, configured, and customized services in Send mail, Apache, Gradle, FTP servers, as requested.
  • Implementing and configuring the Release Management inTFS2017.
  • Expertise in creating the release definitions for Continuous Integration and Continuous Deployments usingTFS.
  • Monitored CPU, memory, physical disk, Hardware and Software RAID, multipath, file systems.
  • Checked log files and used cluster commands to troubleshoot cluster related problems.
  • Configured bamboo Remote agent on Windows Platform to perform .Net Applications Builds.
  • Create geo-mapping visualizations usingKibanato show customer locations in US based maps.
  • Designed a basic view framework/layout structure inKibana4.1.2 to support custom drilldown views of an entire customer population.
  • Planned, scheduled and Implemented OS patches on Linux boxes as a part of proactive maintenance and Secure Shell (SSH) implementation.
  • Experienced in using TestNG Parameter, TestNG.xml and Data Provider (Method and I Test Context.) for parameterization and usedSeleniumautomation(Test NG) to different type of browsers to perform Cross Browser Testing.
  • Produced automated software builds using variety of open source, scripting and proprietary tools.

Environment: Red Hat Linux 4.x, 5.x, Samba, Autosys, VMware vSphere 4.0, VMware ESX 3.5.0, VMware ESX 4.0.0, Shell Scripting, Visual Studio, ELK Stack, Kibana, CI/CD, NAGIOS, NFS, TFS, MOUNT, DNS, LDAP, RAID,Kafka, Selenium, DOCKER CONTAINERS, OpenShift.

Confidential

Linux Engineer/ DevOps Consultant

Responsibilities:

  • Installed, Maintained, Administrated and troubleshoot Linux, Suse, AIX systems.
  • Used Jumpstart for Solaris and kickstart for Linux for performing automated installations of OS.
  • Managed server, and performed RPM and YUM package installations and patching.
  • Used Puppet by creating DevOps processes for consistent and reliable deployment methodology.
  • Configured Puppet to perform automated deployments. Expert in User Management and Plugin Management for Puppet.
  • Installed and configured an automated tool Puppet that included the installation and configuration of the Puppet master, agent nodes and an admin control workstation.
  • Developed and maintained UNIX/Perl/Ant scripts for build and release tasks.
  • Automate infrastructure in cloud using Amazon web services. Deploy puppet to completely provision and manage AWS EC2 instances, volumes, DNS, and S3.
  • Deployed Puppet, Puppet Dashboard and Puppet DB for configuration management to existing infrastructure.
  • Virtualized the servers using Docker for the test environments and dev-environment needs by automating and configuring puppet.
  • Configured Bamboo - Artifactory plugin to upload the artifacts on to Artifactory after the build is success.
  • Worked on taking regular backups for Amazon cloud instances and setting up environments for launching the application.
  • Experience in managing automated multiple continues integrated depot and branch builds on Bamboo, Hudson/Jenkins, TeamCity, AnthillPro, Cruisecontrol.net on a network server.
  • Involved in Logging Infrastructure tools like HDFS and Splunk in Big Data for automation in AWS.
  • Used Docker container for application dependencies in the infrastructure and created a Template images using Linux Kernel.
  • Integrated Build Process through Jenkins to various SCM tools like GitHub, SVN.
  • Supporting Java based applications like JBoss, WebLogic and WebSphere and involved in J2EE application deployment activities.
  • Installed and configured Apache and provided support.
  • Used TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy for setting up network environments
  • Set up user, assigned group, created login ID’s, and set up printing parameters, network configuration, password.
  • Created LVMs on Linux servers, resolved user/group permissions issues & set up user/group quota.
  • Performed regular disk management by adding/replacing hot swappable drives on existing servers/workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.
  • Tuned the kernel, installed agent, added NAS storage as part of preparing servers for Oracle RAC installation.
  • Aided in change management, troubleshooting and resolution of server issues for end users support.
  • Used tools such as Iptables, firewall, TCP wrappers, NMAP for troubleshooting Linux network, security related issues and capturing packets.
  • Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iOS tat etc.) and tuned I/O, memory, etc.
  • Environment:RHEL 4/5/6, Centos 6, NAGIOS, Veritas, NetBackup, Veritas Volume Manager, Apache, Tomcat WebSphere, Samba, NFS, NIS, LVM, Linux, Shell Programming, Gradle

Confidential

Linux Administrator

Responsibilities:

  • Installed Oracle 10g on the Sun servers running Solaris 8, 9, SUSE Linux ES 10 and Redhat AS 2.1, EL 3 and 4.x.
  • Installed and upgraded Solaris 8, 9, 10, IBM AIX 5.x/6.x, Redhat EL 5.x and SUSE EL Server 10.
  • Built AIX servers using NIM server on various IBM Power servers and Kickstarting Redhat EL 3, 4.x, 5.x
  • Created resource pools, zones and containers on Solaris 10 and v490s, v890s to optimize and consolidate the use of the hardware.
  • Used LVM on IBM AIX, Linux to create Volumes on the Volume Groups, Volumes and file systems.
  • Installed and Configured High Availability, Disaster Recovery systems using Veritas Cluster Server 4.1 on a two-node cluster for NFS and MQSeries.
  • Worked on configuring, administering and troubleshooting of NFS, NIS (master, slave and client) and DNS (Bind 8.2.x and 8.3.x) in multi-platform networks that included IBMA IX & Linux.
  • Updated patches to keep the IBM AIX, Linux and Solaris servers updated against bugs present in the operating system using patch administration commands like swlist, SW install, patchadd, showrev, yum, up2date etc.
  • User, Group management and security policy management for the all servers including Windows and UNIX using RBAC, sudo etc.
  • Performance Analysis of resources like CPU, Memory, Disk and Swap using commands: prstat, vmstat, sar, iOS tat, swap etc. and tuning of the kernel parameters for the better performance of the OS.
  • Modified writing scripts for day-to-day job and administration.

Environment: Redhat 8, 9, AS 2.1, EL 3, 4.x, SLES 10 sp1, sp2, IBM AIX 4/5/6, Veritas Volume Manager 4.1, Veritas Cluster Server 4.1, Veritas NetBackup 5, Apache 2.2.x, Web Server 6.x, 7, WebLogic 8.x, 9.0, JBoss 3.2, MQ Series 7.0, CA WAM, Perl.

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