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Devops Engineer

Location:
Smyrna, Georgia, United States
Posted:
October 02, 2016

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Venkata S

304-***-****

*******@*****.***

WORK SUMMARY:

7+ Years of experience in Linux Administration, Middleware, DevOps, tool automation, cloud orchestration and configuration management.

Experience as Build and Release Engineer in automating, building, deploying, and releasing of code from one environment to other environment.

Automation of the entire provisioning pipeline process (PPP) of configuration Management, prebaking and provisioning with Jenkins and Simple Workflows.

Working knowledge in creating Jenkins Environment and configuring end to end build pipe lines.

Working Experience on Linux administration.

Experience in creating Jenkins Environment and configuring end to end build pipe lines.

Achieved continuous delivery by constantly coordinating with testing and dev teams

Great Experience on Amazon Web services.

Worked on Micro Services architecture in AWS by creating ELB’S, Auto-Scaling groups in EC2 using prebaked AMI and Docker containers.

Good experience over AWS services and able to configure environment including VPC, EC2, S3 Buckets, Elastic Load balancers, Configuring Data bases etc.

Extensive experience in WebLogic administration including installation, configuration, troubleshooting, load balancing, clustering, deploying applications, performance tuning and maintenance of WebLogic server versions 8.x/9.x/10.x.

Hands on experience with wily Introscope 7.x/8.x for monitoring alerts to WebLogic server.

Well experienced in installation and implementation of security through LDAP, Active Directory and integrity SiteMinder for single sign-on

WebLogic administration, monitoring and troubleshooting using admin console and JMX.

Expertise in security set up, creating security roles, group policy, user authentication, auditing and authorization.

Capable of working both as a team player and independently.

Possess effective oral and written communication skills and strong analytical problem solving capabilities.

SKILLS:

Web Servers: Web logic, Apache, Tomcat

Scripting: Shell script, WLST, Perl, Python, YAML

Bug Tracking Tools: Jira, Remedy, HP QC

Monitoring Tools: ELK (Elastic Search, Log stash and Kibana)

Build & CI Tools ANT, Maven, Hudson/Jenkins, Chef, Ansible

SCM Tools: GitHub, Accurev

Platforms: Red Hat Linux 7, Windows, CentOS

Cloud Platform: Amazon Web Services (EC2, IAM, VPC, Security Groups, S3, SNS, SQS, AMI’S, Scaling Policies, Cloud Formation Templates, Snapshots, Route 53, VPC, Security groups, IAM ...Etc... )

Others: LDAP, Active Directory, Oracle Enterprise manager, JMeter, JDeveloper, IBM WebSphere MQ, Sun One Directory Server, CA SiteMinder, Wily Introscope 7.x/8.x, SiteScope, TeamForge, JProbe,JSON objects, HP OVO, Web/Rest API’S.

Professional Experience:

Verizon Wireless, Alpharetta, GA 04/2016 – Current

DevOps Engineer

Key responsibilities:

Experience in build, release and deploying applications.

Software Build and Release Automation and Co ordination.

UNIX, Linux System Administration.

Strong debugging and trouble shooting skills.

Developing highly available distributed environments

Investigating, fixing, and debugging software defects.

Support’s Lower Environment to make application availability every time.

Created builds regularly on weekly releases and deploy them successfully in Dev and Test environments.

Involved in DevOps migration/automation processes for build and deploy systems.

Worked on Micro Services deployments on Amazon ECS and EC2 instances.

Created production environment in AWS and configured Elastic load Balancers, Auto Scaling Policies, and Custom Metrics using Amazon Cloud Formation Templates.

Ansible as configuration management tool and developed many playbooks for deployments and configurations.

Creating new Ansible roles for various custom developed windows and Linux applications.

Good understanding over AWS services and able to configure environment including VPC, EC2.

Experience on Docker container services and able to configure for micro services deployments using AWS.

Associated Jenkins with maven and Accurev for CI/CD.

Support the code builds by integrating with continuous integration tool (Jenkins)

Integrated delivery (CI and CD process) Using Jenkins, Ansible and Chef.

Importing and exporting prebaked local boxes to cloud and repacking them.

Experience in setting up RabbitMQ cluster and load balancing in AWS for high availability.

Created bash scripts to deploy the war/ear files in WebLogic middle ware severs.

Created scripts to automate the day to day tasks.

Monitor the UAT/Production Environments for any down time issues by performing regular crone job updates in servers.

Environment:

Ansible, Chef, Amazon web services (EC2, IAM, VPC, Security Groups,S3,SNS,SQS,AMI’S,Scaling Policies, Cloud Formation Templates), Apache Tomcat, IBM Liberty Server, Java/J2ee, Jenkins, JIRA, One Confluence, RHEL 7, Python, Shell Scripting, and GIT

Ernst & Young (E & Y)

Linux/Middleware Admin

Jul 13 – Feb 14

Key responsibilities:

Hands on working with LDAP configuration. Configuration of Groups, Roles and policies. Assigning users to Groups and Roles

Support the code builds by integrating with continuous integration tool (Jenkins)

Written Maven scripts, Installed Jenkins, written shell script for end to end build and deployment automation.

Built Continuous Integration environment (Jenkins, Nexus). And Continuous delivery environment (Puppet, Yum, Rsync).

Integrated delivery (CI and CD process) Using Jenkins, Nexus, Yum and puppet.

Able to create scripts for system administration, AWS and Azure using languages such as BASH and Python.

Build server deployment on Cloud (EC2) servers with help of DevOps tools like Puppet.

Responsible for design and maintenance of the CVS/Subversion Repositories and the access control strategies.

Managed SVN repositories for branching, merging and tagging.

Established processes and tools to maintain code base integrity, including check-in validation rules and Branch/merge processes.

Installed and Configured Jenkins for Continuous Integration.

Responsible for the Plugin Management, User Management, and END-END build and deploy setup using Jenkins.

Used Jenkins& CHEF to perform automated CI Builds and Deployments.

Used MAVEN as a build tools on Java projects for the development of build artifacts on the source code.

Worked as a system administrator for the build and deployments process on the enterprise server.

Deployed the applications to Tomcat Application Server and static content to apache web servers.

Worked with development, testing, deployment, systems/infrastructure and project teams to ensure continuous operation of build and test systems.

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

Environment:

WebLogic, Apache, Tomcat, Subversion, CVS, Java/J2EE, MAVEN, Jenkins, CHEF, Tomcat, JIRA, LINUX, XML, Perl Scripts, AWS, Shell Scripts, Linux RHEL, Centos

New Vision Systems, New Canaan, CT

Middleware Admin

Dec 12 – May 13

Key responsibilities:

Configured WebLogic clusters and deploying J2EE applications in the cluster in a production environment in Solaris

Administrated using the system administration tools like system administration console, Node manager, WLST and command-line interface.

Deployed J2EE Web and EJB modules using Ant tool WebLogic command Line

Worked closely with development and testing teams to implement fixes in testing and production environments.

Installed Oracle-8i server, Oracle client software on the application server and configuring the connectivity using JDBC drivers

Set up and configured MQ series messaging service via JMS Server

Configured clusters, load-balancing and fail-over solutions and Web server plugins for WebLogic application server

Installed and configured of F-5 / BIG IP load balancer to work with WebLogic server

Certificates generation and installation using OpenSSL and Key tool

Server Performance Tuning - Thread Dump Analysis, Core Dump Analysis when Server crashed unevenly LDAP, Oracle 8i/9i/10g on UNIX (Solaris/AIX/Linux) and Windows 2000 /2003 environments.

Created JDBC connections to database like SQL, PL/SQL, Oracle 9i and MS SQLServer databases. Performed Managing and Monitoring the JVM performance by WebLogic Heap Size, garbage collection, JDBC Pools and taking Thread dumps and analyzing to find the problems in application.

Integrated IPlanet webserver 6.0, Apache 2.0 and IIS 6.0 with WebLogic (9.x/10.x) server

Developed scripts (start, stop, backup and recovery processes) for WebLogic application server administration

Developed WLST/Jython, Python, ANT scripts, UNIX shell scripts to automate the deployment process

Configured Secure Sockets Layers (SSL) for data encryption and client authentication and two Way SSL for WebLogic 8.1/9.2 using key tool

Deployment of J2EE Web applications EJB components and enterprise applications (WAR, JAR and EAR files)

Environment:

WebLogic, Subversion, GIT, Java/J2EE, JDK, ANT, MAVEN, DB2, UNIX, Windows XP, HP Quality Center.

PATNI Computers, Mumbai, India Apr 09 – Nov 12

WebLogic/Middleware Administrator

Key responsibilities:

Capacity planning, installation, configuration, tuning and troubleshooting of WebLogic server and migration of applications from WebLogic 8.1 to 10.3

Deployed enterprise java beans, Web applications, enterprise applications and configuration, troubleshooting performance

Worked closely with development and testing teams to implement fixes in testing and production environments

Installed and created managed servers in cluster with HPSA tool

Good experience to run the scripts and attach binary files to the servers with HPSA tool

Created in both clustered and non-clustered environments.

Installed, configured and worked on the deployment tools like Sun N1 SPS and Anthill pro for applications like WAR, JAR and EAR files

Experienced in J2EE (JSP, Servlets, EJB, JNDI, JMS), Java2.0, JDBC, Java Beans, RMI, CORBA, JavaScript, XML, HTML, SQL

WebLogic administration, monitoring and troubleshooting using admin console and JMX.

Participated in writing scripts to handle complex automation/administration using Shell scripting, WLST, ANT, Perl and WLShell

Installed and configured NDM (Network Data Mover) to server and files transferred to the mainframes

Installed and configured wily Introscope 7.x/8.x for monitoring alerts to the WebLogic server

Involved in performance monitoring and tuning using tools such as HP Open View, Introscope 6.0/7.2, as well as built in middleware and OS commands

Used custom defined templates for HP Open View (OVO) on Linux and Solaris based servers

Server performance tuning - Thread Dump Analysis, Core Dump Analysis when Server crashed unevenly

Configured the session management i.e. memory to memory and database replication on WebLogic application server

Administration of Apache HTTP 2.0 Web server, Microsoft IIS Web server and Sun Java system Web server (iPlanet 6.1)

Observed of major J2EE technologies such as JDBC, JNDI, JMS, JMX

Involved with the customer care and development teams in troubleshooting and fixing day-to-day issues related to system and applications in production

Performed scalability, reliability, performance tuning and capacity planning

Web Server/Proxy server setup and administration (Apache, Tomcat, iPlanet, Apache SSL, etc.)

Environment:

WebLogic Server 8.1, Apache-Tomcat, Sun One, J2EE, Web Services, LDAP, XML, AIX, Solaris, Windows, SQL Server.



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