Mahesh Kusukuntla

 

Linux/DevOps Engineer

m: 631-923-5605

          e: Maheshkreddy0314@gmail.com

_______________________________________________________________________________

 

 

Professional Summary:

Highly competent, analytical, and performance-driven Systems/Virtualization Professional, with a well-developed qualifications acquired from extensive experience in various areas encompassing different Virtualization/System architecture and administration, project management, vendor relationships management, strategic planning, and customer service; Having 8+ years of strong experience as a Systems/Cloud Services Administrator to effectively utilize acquired knowledge with the latest cloud technologies Amazon Web Services (AWS),Change/Incident Management and Cloud Management/KVM/OpenStack. OS expertize with Solaris/Linux/Windows Server Editions.

 

.

Core Qualifications :

o          Experienced in working on DevOps/Agile operations process and tools area (Code review, unit test automation, Build & Release automation, Environment, Service, Incident and Change Management).

o          Experience in Linux Administration (Installation, Configuration, Tuning and Upgrades of Linux (Red Hat and Oracle).

o          AWS Cloud platform and its features which includes EC2, VPC, EBS, AMI, SNS, RDS, EBS, Cloud Watch, Cloud Trail, Cloud Formation AWS config, Auto scaling, Cloud Front, IAM, S3.

o          Extensively worked with Version Control Systems CVS, SVN (Subversion), GIT, Perforce, and IBM Rational Team Concert.

o          Extensively worked with automation tools like Hudson, Jenkins and Build Forge to implement the End to End Automation.

o          Expertise in using build tools like MAVEN and ANT for the building of deployable artifacts such as war & ear from source code. Application Deployments  & Environment configuration using Chef, Puppet.

o          Experience in Installation of VMware ESX server and creation of VMs and install different guest OS.

o          Participated in configuring and monitoring distributed and multiple platform servers using Puppet. Used Puppet server and workstation to manage and configure nodes.  

o          Experienced in writing Chef Recipes to automate our build/deployment process and do an overall process improvement to any manual processes.

o          Experience in using domain specific language- Ruby for deployment automation in Chef.

o          Experience in integrating Unit Tests and Code Quality Analysis Tools like JUnit, Cobertura, Clover, PMD, find bugs and check style.

o          Experience in using Nexus and Artifactory Repository Managers for Maven builds.

o          Experience using RPMs to effectively package the applications for product deployments.

o          Good understanding of OSI Model, TCP/IP protocol suite (IP, ARP, TCP, UDP, SMTP, FTP, and TFTP)

o          Hands on Experience on ruby on rails.

o          Experience in object oriented programming (OOP) concepts using Python.

o          Experienced in WAMP (Windows, Apache, MYSQL and Python) and LAMP (Linux, Apache, MySQL and Python) Architecture.

o          Collaborated with the Rackspace Private Cloud team to come up with engineering best practices and attempted to implement them within Cloud identity.

o          Experience in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.

o          Administered and Implemented CI tools Hudson and Jenkins for automated builds.

o          Experience writing Shell and Perl scripts to automate the deployments.

o          Managed environments DEV, SIT, QA, UAT and PROD for various releases and designed instance strategies

o          Responsible for independent support of Tier 2 issues: reboots, start/stop services, reset

o          Experience is using Tomcat, JBOSS, Web logic and WebSphere Application servers for deployments.

o          Experience in Automation testing using Selenium Web Driver /RC / IDE, JUnit, TestNG, Jenkins, Maven, Ant, Cucumber, Soap UI and HP UFT.

o          Strong ability to troubleshoot any issues generated while building, deploying and in production support.

o          Used Logical Volume Manager for the management of Volumes including creation of physical

o          and logical volumes on Linux.

o          Worked closely with DBA Team in order to adjust kernel parameters as per requirements.

o          Containerizing using Docker, Docker Compose, Swarm, Kubernetes, Weave

o          Used Docker containers to quickly deploy linux based applications.

o          Good Interpersonal Skills, team-working attitude, takes initiatives and very proactive in solving problems and providing best solutions.

 

 

 

 

Technical Skills

 

 

Operating Systems	Linux (Red Hat 4.x,5.x, 6.x,7.x), UNIX, WINDOWS NT/2000/2003/XP/VISTA/7,AIX.
Version Control Tools	CVS, SVN, IBM Rational Clear Case, Perforce, RTC,GIT, Source Tree
Languages	C, JAVA, XML, SHELL, PERL,PYTHON
Databases	My SQL, MS Access, Oracle 9i/10g/11g,DB2
Application Servers	WEBLOGIC, WEBSPHERE , TOMCAT
Tools	ANT,MAVEN, HUDSON/JENKINS, CHEFF, PUPPET, BUILD FORGE
Cloud	AWS EC2, VPC, EBS, AMI, SNS, RDS, EBS, Cloud Watch, Cloud Formation AWS Config, S3, Cloud Trail, IAM, Docker, VMWare.

 

CERTIFICATIONS: AWS Certified Solutions Architect – Associate

 

 

Professional Experience:

 

 

VMR Products, LLC, Miami, Florida                                              August 2015 to Present

Sr. Devops Engineer

 

Description:

VMR Products has become a global force in the vapor technology marketplace. We design, produce, distribute and support an ever-expanding catalog of products for our own brands, as well as a growing list of private-label marketers, in more than thirty countries. VMR is the only electronic cigarette company to employ a vertically integrated business model. By managing every aspect of product design, manufacture, and quality control we ensure the best consumer experience.

 

Responsibilities:

 

·  Experience working with Puppet Enterprise and Puppet Open Source. Installed, configured, upgraded and managed Puppet Master, Agents & Databases. Integration of Puppet with Apache and Passenger.

·  Installed and configured an automated tool Puppet that included the installation and configuration of the Puppet master, agent nodes and an admin control workstation.

·  Experience in managing virtual instances and disks using Puppet and Deployed Puppet, Puppet dashboard for configuration management to existing infrastructure.

·  Managed environments DEV, QA, UAT and PROD for various releases and designed instance        strategies .

·  Developed Automation scripts for new enhancements using Selenium WebDriver and TestNG and integrated with Jenkins.

·  Configured applications in virtual private cloud (VPC) and hardened it from malicious attacks using 2-layer protection from security groups (at instance level) and network access control lists (subnet level) and using network access translator (NAT) instance. 

·  Deployed LAMP based applications in AWS environment, including provisioning MYSQL -RDS and establish connectivity between EC2 instance and MySQL-RDS via security groups. 

·  Configured Elastic Load balancer (ELB) including high availability of ELB using various subnets in various availability zones, configured security settings and health check for application.

·  Provisioned AWS S3 buckets for backup of the application and sync this contents with remaining s3 backups, by creating entry for AWS S3 SYNC in crontab. 

·  Created customized AMIs based on already existing AWS EC2 instances by using create image functionality, hence using this snapshot for disaster recovery. 

·  Created AWS Launch configurations based on customized AMI and use this launch configuration to configure auto scaling groups and Implemented AWS solutions using EC2, S3, RDS, DynamoDb, Route53,EBS, Elastic Load Balancer, Auto scaling groups.

·  Architected and led migration to AWS and Implemented AWS Redshift for an automated media buying network including integration of Tableau for data visualizations.

·  Experience in writing Ansible playbooks.

·  Experience in scheduling jobs using Ansible Tower.

·  Experience in Writing Python modules for Ansible customizations.

·  Experience in working with GIT to store the code and integrated it to Ansible Tower to deploy the playbooks.

·  Worked with JIRA for creating Projects, assigning permissions to users and groups for the projects & Created Mail handlers and notification Schemes for JIRA.

·  Completed set up of CD environment with focus on Urban code uDeploy.

·  Set up uDeploy server along with automated scripts to back up the server and restore from backup for Disaster recovery.

·  Developed strategies, and contracts for validation of deployments and automated rollbacks in uDeploy.

·  Setup and Configure Red Hat Satellite for Red Hat Enterprise Linux installs.

·  Performed Jboss upgrades and patching as they come from Redhat with the special procedures as required for security.

·  Performed Branching, Tagging, Release Activities on Version Control (SVN, GIT). 

·  Implemented a Continuous Delivery pipeline with Docker, and GitHub and AWS. 

·  Designed and implemented Docker container service for internal application teams for continuous integration & deployment with git/Jenkins & Docker Swarm.

·  Experience in working on source controller tools like Subversion (SVN), GitHub. And also analyze and resolve conflicts related to merging of source code for SVN and Git and Maintained history of all the repositories using Subversion and Git. 

·  Designing and implementing CI (Continuous Integration) system: configuring Jenkins servers, Jenkins nodes, and Hudson .Responsible for User Management and Plug-in Management for Jenkins 

·  Virtualized the servers using the Docker for the test environments and dev-environments needs. And also configuration automation using Docker containers. 

·  Experience with Docker container management.

·  Research and development on scalable Linux deployments on AWS via Docker.

·  Implemented Docker automation solution for Continuous integration / Continuous Delivery model.

·  Virtualized the servers using the Docker for the test environments and dev-environment needs.

·  Involved in editing the existing MAVEN files in case of errors or changes in the project requirements.

·  Managed Maven project dependencies by creating parent-child relationships between projects

·  Worked on JIRA and Bugzilla for bug tracking issue and Automated the JIRA tasks using Jira cli and Perl.

 

Environment:

 

Puppet , Apache , VPC , NAT, LAMP , AWS – EC2, S3,Route 53, CLOUDWATCH, REDSHIFT , ELB, EBS, DYNAMODB , AMI, Load balancer, Auto Scaling ,SVN, GITHUB, Docker, JIRA, MAVEN, Jenkins, Bugzilla.

 

 

 

LogoUp.com, Pompano Beach, FL                                       Jan 2014 to May 2015

Chef Developer & Cloud Engineer

Responsibilities:

·  Worked closely with the development and operations organizations to implement the necessary tools and process to support the automation of builds, deployments, testing and infrastructure (infrastructure as code) using Chef.

·  Building and supporting environments consisting Testing, Contingency, Production and Disaster Recovery servers.

·  Developed Chef Recipes to configure, deploy and maintain software components of the existing infrastructure.

·  Using chef written 200+ cookbooks like TOMCAT and BASEPACKAGES for an application to automate and make virtual machine servers with the single click we made possible to make server spin off in less than 10 minutes.

·  Used Chef to automate Configuration management & Applications.

·  Used Chef to manage Web Applications, Config Files, Data Base, Commands, Users Mount Points, and Packages.

·  Develop cookbooks to configure Nginx, tomcat, apache

·  Configuring Nginx, tomcat, apache through cookbooks.

·  Mysql DB (creating user, managing privileges), Mongo DB with replica set configuration.

·  Build scripts on AWS cloud for scheduling EC2 auto scaling load balancer with python SDK.

·  Worked on AWS cloud watch for monitoring the application infrastructure and used AWS email services for notifying.

·  Migrated applications from internal data center to AWS.

·  Configured the Route 53 DNS and load Balancers for the VPC and the NACL with inbound and outbound Rules.

·  Using Jenkins AWS Code Deploy plugin to deploy to AWS  

·  Configured Elastic Load Balancers with EC2 Auto scaling groups

·  Implemented AWS solutions using E2C, S3, RDS, EBS, Elastic Load Balancer, Auto  scaling groups,

·  Optimized volumes and EC2 instances

·  Configured S3 versioning and lifecycle policies to and backup files and archive files in Glacier 

·  Used IAM to create new accounts, roles and groups.

·  Secured Jboss EAP 6.3 by configuring security domains, security realms, and LDAP authentication

·  Deployed various J2EE applications (WAR and EAR) on WebLogic Servers using WebLogic Console, automated shell scripts and Jboss Servers using Jboss management console, hot deployment and jboss-CLI and Tomcat Application servers.

·  Peer reviews of the Design and Source Code (C, C++, and Shell Scripts).

·  Installed and configured Linux, Apache, MySQL and PHP.

·  Experience in creating alarms and notifications for EC2 instances using Cloud Watch.

·  Create, extend, reduce and administration of Logical Volume Manager (LVM) in RHEL.

·  Used Agile/scrum Environment and used Jenkins, GitHub for Continuous Integration and Deployment.

·  Expertise in creating VM Templates, cloning and managing Snapshots.

·  Experience in deploying several sets of Linux guest builds from VMware templates using PowerCLI as well as Red Hat Satellite Server.

·  Integration of Maven/Nexus, Jenkins , Urban Code Deploy with Patterns/Release, Git, Confluence, Jira and Cloud Foundry.

·  Continuous Delivery is being enabled through Deployment into several environments of Test, QA, Stress and Production using Nexus and Jenkins.

 

 

Environment: C++, GIT, JENKINS, CHEF, MAVEN, AWS, EC2, WEBSPHERE, ANT, PUTTY, CONFLUENCE, Java, J2ee, SOA,

 

 

Perseus,New York, NY

Sr. DevOps (chef) &Cloud Engineer (AWS) April 2012 to Dec 2013

 

A wireless engineering and consulting firm that provides unconventionally adept design and dimension

Testing, optimization and deployment services for network operators, OEMs and tower companies.

 

Responsibilities:

 

·  Automated CI/CD process using Jenkins, build-pipeline- plugin, maven, GIT.

·  Involved in Software Configuration Management, Build & Deployment Management.

·  Set up Jenkins master/slave to distribute builds on salve nodes.

·  Used several Jenkins plugins like artifactory plugin, Ant, Maven Plugin etc.

·  Implement best practices and maintain Source Code repository infrastructure (Using GIT).

·  Setup Chef server, workstation, client and wrote scripts to deploy applications.

·  Used cookbooks, recipes, roles, databags, runlist to deploy web applications, applications servers

·  and vendor applications.

·  Used Test Kitchen to test the scripts and used Ohai to collect attributes on node.

·  Worked on AWS EC2, IAM, S3, EBS, Elastic Load balancer (ELB), auto scaling group services.

·  Experience in creating alarms and notifications for EC2 instances using Cloud Watch. 

·  Used AWS SDK python to automate EC2, load balancing, auto scaling to deploy applications.

·  Installed TFS 2013 and setup different TFS user groups for the project team.

·  Managed and controlled the source code repository, currently housed in TFS

·  Evaluated and lead the conversion to using Team Foundation Server for integrated source control, builds, testing, and deployment and lead upgrades of TFS

·  Worked on User administration setup, maintaining account, Monitor system performance using Nagios and Tivoli. 

·  Responsible for maintaining Linux servers (RHEL, Ubuntu and Amazon) as well as ensuring the health and stability of the server. This included trouble shooting possible package/library conflicts using various OS, server, and application logs to pinpoint the problem in order for it to be corrected.

·  Managed Ubuntu Linux and Windows virtual servers on AWS EC2.

·  Worked exclusively on VMware virtual environment.

·  Experience in using VMware vMotion to move VM’s from One Datacenter to another datacenter.

·  Developed programs using Ruby, Perl and shell scripting. 

·  Worked on Agile methodology and used JIRA for issue tracking.

·  Managed, maintained and deployed to test, acceptance and PROD environments. 

·  Performed tasks on F5 load balancer like ordering new certs, installing and renewing SSL certificates, bouncing servers with performance issues after taking them out of the server pools, ID

maintenance, User, Group management for all the UNIX servers.

 

Environment: ELB, JENKINS, CHEF, LAMP, AWS, EC2, TFS, WEBSPHERE, SHELL, RUBY, CONFLUENCE, Java, J2ee,SOA.

 

uBreakiFix, Orlando, FL                  Oct 2011 to Feb 2012

Role: Build & Release Engineer/DevOPS Engineer

Responsibilities:
Release Engineer for a team that involved different development teams and multiple simultaneous software releases.

●       Developed and implemented Software Release Management strategies for various applications according to the agile process.

●       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

●       Created and maintained the Shell/Perl deployment scripts for TC Server/Tomcat web application servers.

●       Imported and managed multiple corporate applications into Subversion (SVN).

●       Written make, Maven and Ant build tools for application layer modules.

●       Developed build and deployment scripts using ANT and MAVEN as build tools in Jenkins to move from one environment to other environments.

●       Built and Deployed Java/J2EE to a web application server in an Agile continuous integration environment and also automated the whole process.

●       Participated in weekly release meetings with Technology stakeholders to identify and mitigate potential risks associated with the releases.

●       Developed Perl and shell scripts for automation of the build and release process.

●       Involved in editing the existing ANT/MAVEN files in case of errors or changes in the project requirements.

●       Perform periodic system audits on all environments to ensure that only controlled versions of software reside all environments. 

●       Installed/Configured/Managed Jenkins CI Automation.

●       Responsible for the development and maintenance of processes and associated scripts/tools for automated build, testing and deployment of the products to various developments.

●       Managed Maven project dependencies by creating parent-child relationships between projects.

●       Responsible for the Plugin Management, User Management, Build/Deploy Pipeline Setup and End-End Job Setup of all the projects.

●       Installed/Configured and Managed Nexus Repository Manager and all the Repositories.

●       Created the Release process of the artifacts.

●       Jenkinsis used as a continuous integration tool for automation of daily process.

●       JIRA is used as ticket tracking, change management and Agile/SCRUM tool.

●       Participated in understanding of automation tools relating to bladelogic.

Environment: Subversion (SVN), Jenkins, Java/J2EE, ANT, MAVEN, CHEF, TC Server, Tomcat, Perl Scripts, Shell Scripts, XML, UNIX, Windows 7, Oracle, JIRA.

 

 

 

 

 

 

MindTree - Banglore June 2007 to Aug 2011

Build & Release Engineer

 

Responsibilities

 

● Developed build and deployment processes for Pre-production environments.

● Used Subversion as source code repositories.

● Managed SVN repositories for branching, merging, and tagging.

● Responsible for designing and deploying best SCM processes and procedures.

● Maintained and coordinated environment configuration, controls, code integrity, and code conflict resolution.

● Worked closely with software developers and DevOps to debug software and system problems

● Resolved merging issues during rebasing and re-integrating branches by conducting meetings with Development Team Leads.

● Used Jenkins, Build forge for Continuous Integration and deployment into Tomcat Application Server.

● Involved in writing parent pom files to establish the code quality tools integration.

● Implemented the setup for Master slave architecture to improve the Performance of Jenkins.

● Installed and Configured the Nexus repository manager for sharing the artifacts within the company.

● Developed Shell/Perl Scripts for automation purpose.

● Used AGILE MVN method to develop a build and also ANT as a build tool.

● Supported and developed tools for integration, automated testing and release management.

● Verified if the methods used to create and recreate software builds are consistent and repeatable.

● Involved in Research of the project application architecture to support/resolve build, compile, and test issues/problems.

● Releasing code to testing regions or staging areas according to the schedule published.

● Used Jira as ticket tracking and work flow tool.

 

Environment: SVN, Shell/Perl Scripts, SCM, Build Forge, Maven and ANT Tomcat, Jira

 

Education: Bachelors in Electronics and Computer Engineering, Gitam University, INDIA