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Sr. Devops Engineer Resume

Westerville, OH

SUMMARY:

  • Around 8 Years of experience in IT industry comprising of DevOps, Cloud Computing, Infrastructure Configuration Management, Linux Systems administration and Software Configuration Management (SCM).
  • Primary duties include coming up with a combination of Automation/Tools and Processes to achieve Continuous Delivery/ Continuous Integration for various applications by integrating various tools like Jenkins, Git, Jira, Nexus/Artifactory, Puppet/Chef, Maven/Gradle, various testing frameworks like Junit, Selenium, Cucumber, SoapUI, Jmeter, various App servers like Weblogic, WebSphere, JBoss along with establishing process for Code Promotion within the Enterprise to move code from Dev, QA, SIT, Stage and Prod Environments.
  • Experience working with Apache Hadoop, Kafka, Spark and Log stash.
  • Worked with Apache Kafka for High throughput for both publishing and subscribing, with disk structures that provide constant performance even with many terabytes of stored messages.
  • Used Apache spark for processing large sets of data volumes for rapid processing and enhancing the output.
  • Experience in AWS operations and automation using CLI or API’s for various services like EC2, EBS, S3, Glacier, VPC, Route53, Cloud Formation, Cloud Front, OpsWorks, RDS, DynamoDB, ElastiCache, ELB, Auto scaling etc.
  • Good experience in maintaining a Hybrid IT environment configuration encompassing many aspects of Linux System Administration like Automating OS Installations, RAID, Security Hardening, Capacity Planning, VM patching etc.
  • Exposure to Mesos, Marathon & Zookeeper cluster environment for application deployments & Docker containers.
  • Expertise in using tools like Chef/Puppet to treat Infrastructure as code.
  • Experience writing various Chef Cookbooks, both, for Infrastructure Configuration and Deployment Automation using Roles, Environments, secure Data bags with vault, Attributes/resources, ERB templates etc.
  • Experience writing various custom Ansible Playbooks and modules for Deployment Orchestration. june
  • Used OpenStack APIs and sdks for Nova, Neutron, Cinder, Swift, Glance, Keystone etc. to manage OpenStack resources for applications running inside data center.
  • Knowledge of puppet as Configuration management tool, to automate repetitive tasks, quickly deploy critical applications, and proactively manage change.
  • Used various components like Hiera, Mcollective, PuppetDB, Facter etc while writing various manifests and modules in Puppet.
  • Wrote custom puppet modules for managing the full application stack (Tomcat/httpd/MySQL/Java) and streamlined email infrastructure
  • Experience in application development, debugging, implementation, supporting dev team, testing of Oracle based ERP using SQL and Database Triggers.
  • Experience writing build scripts with tools like Ant and Maven and Gradle.
  • Experience in Configuring and Administering Repository Managers like Nexus, Artifactory.
  • Extensive experience in configuration, deployment automation with various App Servers like Oracle WebLogic, Web Sphere, JBoss, Webservers like Apache, Tomcat and more modern Web Containers like Nginx etc.
  • Knowledge of databases like MySQL, Oracle 10g/11g, MSSQL, MongoDB, Dynamo DB.
  • Experience in setting up Baselines, Branching, Patches, Merging and Automation processes using Shell/bash and Batch Scripts.
  • Experience with Build Management tools Ant and Maven for writing build.xmls and pom.xmls
  • Strong analytical, diagnostics, troubleshooting skills to consistently deliver productive technological solutions.
  • Experience in using bug tracking systems like JIRA, Remedy, HP Quality Center and IBM Clear Quest.

TECHNICAL SKILLS:

Cloud Computing: Amazon Web Services (EC2, IAM, Elastic Beanstalk, and Elastic Load balancer (ELB), RDS (MySQL), S3, Glacier, Route 53, SES, VPC etc.), Open Stack Platform Cloud Foundry.Configuration Management: ANT, Maven, GIT, Svn, Clear Case, Jenkins, Puppet, Chef, Ansible, Sonar, Nexus

Tools: / Webservers: Web Sphere Application Server 3.5, 4.0, Web Logic, JBoss, Apache, Tomcat, Nagios, Kafka, Log stash, Spark

Scripting/ Languages: Shell scripting, Python, Ruby and PowerShell Scripting.

Database: Sybase, Oracle 7.x/8.0/9i/10g/ 11g, MySQL, DB2

Networking/ Protocols: DNS, TCP/IP, FTP, HTTPS, SSH, SFTP, SCP, SSL, ARP, DHCP and POP3

Operating Systems: Sun Solaris 7, 8, 9 &10 Linux (Red Hat 5.x, 6.x, 7.x SUSE Linux 10), AIX, VMware ESX, Windows NT/ 2000/2003/2012, Centos, Ubuntu.

PROFESSIONAL EXPERIENCE:

Confidential, Westerville, OH

Sr. DevOps Engineer

Responsibilities:

  • Installed, Configured and Administered WebSphere Application Server ND/XD 6.1/7.0 on Red Hat Linux platform.
  • Used WSINSTANCE to create multiple WebSphere instances from the command line.
  • Used Flume, Kafka to aggregate log data into HDFS.
  • Developed a stream filtering system using Spark streaming on top of Apache Kafka.
  • Designed a system using Kafka to auto - scale the backend servers based on the events throughput.
  • Used Cassandra to support contracts and services that are available from third parties.
  • Used XML Web services with SOAP protocol for transferring data between different applications.
  • Organized and created a separate role for every installation and created a role called “Common” for all the common activities and included in meta/main.yml.
  • Used Ansible Tower for scheduling playbooks and used GIT repository to store our playbooks.
  • Used pre-tasks and post-tasks to perform regular health checks to tail the logs and other clusters.
  • Also written custom modules to control system resources like services, packages, and to handle executing system commands.
  • Automated the front-ends platform into highly scalable, consistent, repeatable infrastructure using high degree of automation using Vagrant, Jenkins, and cloud Formation.
  • Experience in using Ansible playbooks, inventory, dynamic inventory and automated Existing cloud environment.
  • Written playbooks and roles to manage configurations of and deployments to remote machines.
  • Installed the "htop" utility which is an improved version of top—an interactive system process monitor.
  • Working with other members of the development team to design, develop and implement features, bug fixes, and other improvements for the Ansible core software.
  • Experience in AWS Ansible Python Script to generate inventory and push the deployment to
  • Managed configurations of multiple servers using Ansible.
  • Written multiple manifests and also customized facts for efficient management of the Ansible clients.
  • Written scripts in Python to automate log rotation of multiple logs from web servers.
  • Written Python scripts to create test cases during two week sprints using agile methodology.
  • Launching Amazon EC2 Cloud Instances using Amazon Images (Linux/ Ubuntu) and Configuring launched instances with respect to specific applications.
  • Working with AWS services such as EC2, VPC, RDS, CloudWatch, CloudFront, Route53 etc.
  • Focus on continuous integration and deployment, promoting Enterprise Solutions to target environments.
  • Configuring and Networking of Virtual Private Cloud (VPC) and Cloud Foundry.
  • Written Cloud formation templates and deployed AWS resources using it.
  • Creating S3 buckets and also managing policies for S3 buckets and Utilized S3 bucket and Glacier for storage and backup on AWS
  • Implemented Git mirror for SVN repository, which enables users to use both Git and SVN.
  • Implemented Continuous Integration using Jenkins and GIT.
  • Deployed JAVA/J2EE applications through Tomcat Application servers
  • Worked with a complex environment on Red Hat Linux and Windows Servers while ensuring that these systems adhere to organizational standards and policies.
  • Maintain and track inventory using Jenkins and set alerts when the servers are full and need attention.
  • Strong in building Object Oriented applications using Java, writing Shell Scripts on UNIX
  • Generated Perl & UNIX scripts for build activities in QA, Staging and Production environments
  • Used monitoring tool JIRA and also triaged the issues and maintained bugs using JIRA tool.
  • Creating Cloudwatch alerts for instances and using them in Auto scaling launch configurations.
  • Implemented and maintained the monitoring and alerting of production and corporate servers/storage using AWS Cloudwatch.
  • Manage the integration of new software projects and products into the build environment.
  • Work with product development to resolve build-related issues in all projects.
  • Involved in scrum ceremonies (stand-up, grooming, planning, demo/review and retrospective) with the teams to ensure successful project forecasting and realistic commitments
  • Involved in scrum meetings, product backlog and other scrum activities and artifacts in collaboration with the team
  • Migrating the data to respective DEV and QA Oracle database before doing code roll-out
  • Troubleshooting various production related outages.
  • Delivery of API platform Testing and Automation Framework Development on Cloud Platform.
  • Functional and Performance testing of SAAS and PAAS API platform built on Java and Open source stack.
  • Skilled in supporting WebSphere, WebLogic, and JBoss application Server.
  • Migrated applications from WebSphere Application Server 5.1/6.0 to JBoss Application Server V4.2/5.2.
  • Have involved in creating different Apigee API documents as part of the project requirements.
  • Have used almost all the Apigee edge policies while implementing endpoints on gateway.
  • Used JavaScript and AngularJS directives for validation purposes.
  • Utilized Angular JS framework to bind HTML template (views) to JavaScript object (models).
  • Implemented Angular Controllers to maintain each view data.
  • Implemented Angular Service calls using Angular Factory.

Environment: Cloud AWS Servers, RHEL, Centos, Ubuntu, Jenkins, Jira, Tomcat, Cloud Foundry, WebSphere Application Server 5.x/6.x/7.x/8.x, Ansible 1.9/2.x, JBOSS, Sonar, Nexus, API Platforms, Apigee, SOAP UI, Kafka, Docker, Mesos, Marathon .

Confidential Orlando, FL

DevOps Engineer/AWS Engineer

Responsibilities:

  • Design EC2 instance architecture to meet high availability application architecture and security parameters.
  • Developed processes, tools, automation for Jenkins based software for build system and delivering SW Builds.
  • Experience in deploying and maintaining private cloud infrastructure of OpenStack and Cloud Foundry.
  • Proficiency in Neutron L2 and L3 agents, Cinder Storage / block storage, Swift Storage / object storage, file, CEPH Storage, Ubuntu, Canonical Stack, OpenStack APIs, OpenStack Dashboard, cloud ecosystems, IaaS, PaaS, DPaaS, FWaaS, LBaaS, OPNFV, SDN, marketplace, private, public and hybrid clouds, along with various drivers and plugins such as Open Daylight ML2 Mechanism Driver, Open Flow Agent, VMware NSX Network Virtualization Platform Plugin, GlusterFS driver and NFS driver.
  • Used Python scripts to design data visualization to present current impact and growth.
  • Worked on managing packages and configuration across multiple of nodes.
  • Designed and built a continuous integration and deployment framework for Chef Code using test driven development.
  • Worked on Hadoop environment for automating common tasks.
  • Also worked on Apache Hadoop and used Kafka for messaging system and spark for processing large sets of data.
  • Documented release, builds and source control processes and plans.
  • Provided deployment support for several releases in finance and corporate business area.
  • Documented work done, skills required and mitigated in future projects
  • Evaluate Chef and Puppet framework and tools to automate the cloud deployment and operations.
  • Puppet module creation, integration, and testing Key Technologies: MongoDB, Go Continuous Delivery Engine, Puppet
  • Formal training on Openstack - Essentials of Openstack Administration (LFS520) - Advanced Track (modules, lookups, etc) on Puppet - Puppet Architect Advanced.
  • Creating snapshots and amazon machine images (AMIs) of the instances for backup and creating clone instances.
  • Setting up private networks and sub-networks using virtual private cloud (VPC) and creating security groups to associate with the networks and Setting up scalability for application servers using command line interface.
  • Setting up and administering DNS system in AWS using Route53.
  • Used XML Web services with SOAP protocol for transferring data between different applications.
  • Well versed with user and plugin management for Jenkins.
  • Develop Docker based infrastructure - Mesos, Kubernetes
  • Used marathon and mesos to check the application status and its log.
  • Worked on Apache Mesos-Marathon for Resource Management.
  • Migrating VCS, Oracle RAC and Redhat Clusters with GFS (Global File Systems) servers across the Data Center, which includes Configuring of new IP, VIP and Private IP.
  • Managing users and groups using the amazon identity and access management (IAM)
  • Implemented continuous integration using the Hudson, which tracks the source code changes
  • Support development engineers with Configuration Management issues. Assist my seniors and Project Leaders in technical issues.
  • Develop Docker based infrastructure - Mesos, Kubernetes
  • Used marathon and mesos to check the application status and its log.
  • Worked on Apache Mesos-Marathon for Resource Management.
  • Integrated Kafka with Flume in sand box Environment using Kafka source and Kafka sink.
  • Worked with application teams to install operating system, Hadoop updates, patches, version upgrades as required. Integrated Kafka with Spark in sand box Environment.
  • Responsible for Installing, setup and Configuring Apache Kafka and Apache Zookeeper.
  • Used Kafka to collect Website activity and Stream processing.
  • Creation and setup of new environments/branches such as development, testing and production
  • Worked closely with development team and SQA team for product releases
  • Worked under an environment that has a good defect tracking system through the use of Manual Test and Test Manager.
  • Responsible for WebSphere installation, configuration, maintenance and patching.
  • Configured WebSphere Application Server V7.0 with DB2 V7.1/8.1 database.
  • Configured virtual hosts and transports for WebSphere application servers.
  • High availability testing (both Data platform and API platform), Failover and Operations testing for multi region Amazon AWS product implementations.
  • Wrote queries to create, alter, insert and delete elements from lists, sets and maps in Datastax Cassandra.
  • Responsible for building scalable distributed data solutions using Datastax Cassandra.
  • Ran many performance tests using the Cassandra-stress tool in order to measure and improve the read and write performance of the cluster.
  • Created data-models for customer data using the Cassandra Query Language.

Environment: WebSphere Application Server 5.x/6.x/7.x/8.x, Dell Servers, AWS, Red Hat Linux 6, Oracle RAC, Ubuntu, Puppet, Tomcat Server, Nginx, API Platforms, Cloud Foundry, Apigee, SOAP UI, Cassandra, Kafka, Docker, Mesos, Marathon .

Confidential, Austin, TX

Build/Release Engineer

Responsibilities:

  • Maintained source code repository in subversion, GIT.
  • Automated deployment of builds to different environments using Anthill Pro
  • Create and setup automated nightly build environment for Java projects using Maven
  • Maintain and track inventory using Jenkins and set alerts when the servers are full and need attention.
  • Ensure that the builds are consistent after being ported from different platforms.
  • Writing/Modifying various Manifests and applying them on the nodes using Puppet.
  • Managed builds and wrote Build scripts for JAVA and WebSphere based applications
  • Responsible for the EBFs (Emergency Bug Fixes) to push them to different environments and monitor their status
  • Developed scripts using BASH and BATCH files for Automation of Activities and builds.
  • Working closely with Web Administrators to setup an automated deployment for SharePoint applications using SVN and Git Tools.
  • Installing, setup of proliant blade BL,DL series with fiber channel connectivity, Cisco GESM interconnect switch, configuring the connectivity, setting up JBOSS cluster, setting up oracle 10g cluster, configuring load-balancing on apache, on Redhat Linux 4.0/5.0 Setting up NIS/NFS on RedHat servers
  • Performed merges for each build from Development Branch to Integration Branch
  • Worked with the automated scripts for the Build and Deployment of the applications
  • Monitor and administer the automated build and continuous integration process to ensure correct build execution, and facilitate resolution of build failures
  • Maintained configuration files for each application for the purpose of build and install on different environments
  • Suggested and implemented the process of nightly builds and auto deployments, for fast paced applications
  • Work closely with Business analysts and Project managers to meet release and build schedule deadlines.
  • Created User defined types to store specialized data structures in Cassandra
  • Implemented a distributed messaging queue to integrate with Cassandra using Apache Kafka and ZooKeeper.
  • Worked with application teams to install operating system, Hadoop updates, patches, Kafka version upgrades as required.
  • Worked on the Analytics Infrastructure team to develop a stream filtering system on top of Apache Kafka.
  • Implemented Kafka Storm topologies, which are capable of handling and channelizing high stream of data and integrating the storm topologies with Esper to filter and process that data across multiple clusters for complex event processing.
  • Queried and analysed data from Datastax Cassandra for quick searching, sorting and grouping.

Environment: Red Hat Linux, Oracle 10g, Maven, Anthill Pro, Jenkins, JAVA, ANT, SVN Subversion, WebSphere, Cassandra, Kafka, Cloud Foundry.

Confidential

Build Engineer

Responsibilities:

  • Monitor and administer the automated build and continuous integration process to ensure correct build execution, and facilitate resolution of build failures.
  • Creation and setup of new environments/branches such as development, testing and production.
  • Experience integrating test suites into build environments like Jenkins or TeamCity.
  • Maintained configuration files for each application for the purpose of build and install on different environments.
  • Created the build instructions docs and install (deploy) instructions docs for each application for different environments.
  • Developed processes, tools, automation for Jenkins based software for build system and delivering SW Builds.
  • Performed merges for each build from Development Branch to Integration Branch.
  • Installing and setting up Oracle8i on Linux for the development team
  • Used ANT and MAVEN as build tools on Java projects for the development of build artifacts on the source code.
  • Worked with the automated scripts for the Build and Deployment of the applications
  • Monitor and administer the automated build and continuous integration process to ensure correct build execution, and facilitate resolution of build failures.
  • Designed and Wrote Parallel Desired State Configuration Framework. Geared for IIS and WCF Applications built on Windows Servers using PowerShell Dot Net.
  • Worked closely with development team and QA team for product releases.
  • Responsible for WebSphere installation, configuration, maintenance and patching.
  • Configured WebSphere Application Server V7.0 with DB2 V7.1/8.1 database.
  • Configured virtual hosts and transports for WebSphere application servers
  • Worked under an environment that has a good defect tracking system through the use of Manual Test and Test Manager.
  • Documented release, builds and source control processes and plans and Support development engineers with Configuration Management issues.
  • Provided level one support for build troubleshooting and production issues.

Environment: WebSphere Application Server, Solaris, Red hat, MongoDB, ANT, SVN, GIT, Bash, Jenkins, Oracle8i.

Confidential

Java Developer/Build Engineer

Responsibilities:

  • Developed 32 UI screens using HTML, JSP, and Java Script.
  • Client Side Validation throughout the application is done by JavaScript and Server Side validation is performed inside Action Classes.
  • Implemented MVC design pattern using Spring MVC Framework in cardholder application.
  • Responsible for the requirement gathering and analysis.
  • Prepared Design documents.
  • Used Java Server Pages for content layout and presentation.
  • Encapsulated Business Rules in PL/SQL packages and the data was written to the database in accordance the business rules.
  • Used JDBC API for interaction with the Oracle Database.
  • Debugging and testing of the applications & fine-tuning performance.
  • Provided maintenance support in production environment.
  • Responsible for coding the corresponding controllers.
  • Prepared and executed test plans -Involved in unit, system and Integration testing.
  • Supported the QA and UAT bug fixes.
  • Responsible for the Branching and Merging with SVN SCM.
  • Responsible for maintaining the ANT build.xml’s for all the projects.

Environment: HTML, Java, J2EE, Oracle 8i, JSP, Java Script, PL/SQL, ANT, SVN.

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