Weblogic Admin, Oracle fusion Middleware Admin, System Admin

NAGA VIJAYA

Mobile: 732-***-****

SUMMARY

*+ years of experience as Weblogic Administrator,Fusion middleware administrator and JAVA/J2EE developer, DevOps Engineer

WORK EXPERIENCE

Strong experience in installing,configuring, tuning and troubleshooting of Weblogic 7.x,8.x,9.x,10.x,11g and 12c environments

Strong programming experience in Core java and J2EE technologies - Servlets, JSP,JDBC and Struts

Strong experience in configuring and maintaining Fusion middleware environments

Good knowledge in Fusion middleware technologies like Oracle SOA suite and Oracle IDM

Strong experience in configuration of Weblogic domains, Clusters, Nodemanager and machines

Strong experience in configuring weblogic subsystems like Datasources,JMS andSecurity

Involved in Weblogic Deployment activities and Weblogic Production support activities

Strong experience in SSL configuration, Weblogic proxy plugin configuration

Good in analyzing weblogic performance issues like Hung server,OOM, Server crash and Server slowness using tools like jprobe,Samurai and Eclipse memory analyzer

Good in analyzing weblogic server Thread dump,Heap dump and GC collection

Proficient in developing scripts using Ansible (similar to Chef & Puppet), WLST scripting,Python and Unix shell scripting

Have experience in working various operating systems - Oracle Solaris, Linux(Red Hat &Oracle),Hp-Ux and Windows

Experience in Agile methodology and Waterfall methodology

Experience in maintaining Atalassian tools – Bamboo, Jira,Confluence and Crucible

Good knowledge in technologies Spring, Hibernate and Webservices

Contributed to CMMI Level 3 activities by acting as Project quality analyst and defect prevention analyst

EDUCATIONAL QUALIFICATION

B.Tech in Information science and Technology from Koneru Lakshmaiah college of Engineering (Affiliated to Acharya Nagarjuna University) with an aggregate of 82%

Trainings Attended

Oracle SOA suite administration

Oracle Fusion middleware administration

Apache Hadoop developer(HDFS,Map reduce, Hive,Hbase, Pig,Sqoop and Flume)

Cloud technology – Amazon webservices

ACHIEVEMENTS

Received appreciation certificate from HCL for the contribution to the CMMI level3 activities and Application Maintenance releases

Received appreciation certificate from Oracle VP and KPIT Cummins VP for exemplary performance

SKILLS-SET

Application Server

Oracle Weblogic Server (8.x, 9.x, 10.x, 11.x,12c ),Websphere6.x

JVM

JRockit, Sun JDK, HP-UX JDK, IBM JDK

Web Servers

Apache WebServer, Sun One Iplanet Server, IIS 5.0 & 6.0, Oracle HttpServer

Ldap&Policy Servers

Active Directory Server, Sun One Directory Server, Embedded LDAP

Messaging Servers

BEA Message Queue, IBM MQ series

Languages

Java, Unix Shell scripting, WLST,Python,Ansible

Operating Systems

UNIX (Solaris SPARC, Red Hat ),WINDOWS (2000 Server,2003 Server,XP)

Database

Oracle 11g

Debugging tools used

JProfiler, Jprobe, Jrockit Mission Control tools, Samurai

IDE tools

IBM RSA,Oracle Jdeveloper and Weblogic Workshop

CI tools

Bamboo

Java Technologies

Core java, Struts,Apache Axis, Web services, Spring and Hibernate

Middleware technologies

Oracle fusion middleware, Oracle SOA suite, Oracle IDM,OBIEE, Oracle Coherence,Oracle ADF and Oracle Webcenter portal

PROJECT DETAILS

Client Name: USFoods

Project Name: USF Middleware services

Period : Mar 2015 to Till date

Role

Middleware administrator

Technologies

Oracle Weblogic 11g &12.x,Oracle Webcenter, Oracle OHS, Tibco BW, Bamboo, Oracle Database, Oracle Coherence

Operation System

linux and Windows

Responsibilities:

Installing, configuring,patching, troubleshooting and maintaining middleware environments for USF Ecom and Java applications

Configuring Weblogic server, Weblogic Portal and OHS setup

Deploying application code and properties using bamboo CI tool to weblogic, Tomcat, WebSphere and Tibco environments

Creating and maintaining bamboo plans and branches

Creating automation scripts Ansible for application maintenance activities using Ansible,WLST,python and Shell

Applying patches to weblogic server and Webcenter portal

Troubleshooting and fixing environment related issues

Provide support to Portal, Webservices and ADF applications

Configure and maintain Oracle coherence servers

Supporting mobile technologies like kony

Installing, upgrading and configuring Atlassian CI tools – Bamboo,Jira,Crucible and Confluence.

Install and configure connectAll product for defects sync between Jira and HPQC

SSL setup, certificate creation, renewal

Creating authenticator(like OVD,AD) setup in weblogic

Maintaining configuration/code in SVN repository

Handling Jira tickets/Incident tickets/Change tickets

On call support and weekend support

Organization Name: Oracle

Project Name: PDIT-DS Fusion Middleware support

Period : Sep 2011 to Jan 2015

Role

Middleware administrator

Technologies

Oracle Weblogic 11g,Oracle OHS, Oracle IDM, Oracle BI, Oracle Database, Oracle SOA

Operation System

Oracle linux and Windows

Responsibilities:

Installing, configuring, troubleshooting and maintaining fusion middleware environments

Upgrading fusion applications and applying quarterly maintenance patches

Performing snapping and cloning activities to fusion environments

Applying fusion application patches using fapmgr and Opatch tools

Applying patches to Fusion middleware environment using ant scripts

Analyzing thread dumps, server logs, config files and fusion application diagnostic logs to diagnose the issues.

Bouncing fusion middleware services using fa_control commands

Configuring BIGIP setup,Grid setup and OHS setup

Creating shell scripts and WLST scripts for fusion application maintenance activities

SSL setup, certificate creation, renewal

Worked on Fusion language installations

Maintaining configuration data in SVN repository

Handling daily problems/Work requests/Bug requests/Data center change requests

Client Name: DEUTSCHE BANK

Project Name: DB – DES Middleware support

Period : Jan 2011 to May 2011

Role

Middleware Administrator

Technologies

Weblogic 8.1.x, 10.x, Apache Server, Sun one server,IIS server

Operating System

Sun Solaris 10,IBM AIX 5.3 and Windows

Responsibilities:

Administration, Installation, configuration of Weblogic (WLS, MQ Resources, Components, I-Planet Web Server 6.0, & Apache Web Server, and configuration of proxy requests using software Load Balancer to clustered Weblogic servers)

Experience in troubleshooting the deployment and other application problems, applying WebLogic patches, Service Packs, and working closely with Development Teams in solving issues

Analyzing thread dumps, memory dumps (heap dumps), config files and logs to diagnose the issues

Troubleshooting and fixing production issues

SSL setup, certificate creation, renewal

Middleware environment setup for QA environment

Handling daily problems/Workrequests

Worked on Test Process Documentation/Synopsis for all the Test & Production Environments aligned to ITIL

Client Name: ORACLE

Project Name: Oracle – Weblogic server support

Period : April-2010 to Dec-2010

Role

Grid Engineer

Technologies

Weblogic 8.1.x,9.x,10.x, Apache Server, Sun one server,IIS server

Operating System

Microsoft Windows,Linux, Sun Solaris,IBM AIX

Responsibilities:

Providing assistance in Application designing, development, and deployment issues

Assisting customers in hardware/software compatibility issues specific to their application

Involved in Capacity Planning and Application environment tuning discussions

Analyzing and troubleshooting customer’s environment in critical scenarios like production down

Handled issues related to Server hang, crash, JVM and OS memory issues, Cluster and Plugin configuration problems, Application and server security configuration problems

Replicating customer’s issue by creating the identical environment for advanced troubleshooting purposes

Finding bugs with Weblogic server and reporting to the product engineering division

Documenting the whole history of the issue reported by customer. This involves issue confirmation, verification, analysis and final solution to resolve the problem

Creating new articles and test cases to enhance the existing Knowledge base

Handling service requests for critical customers like Govt.InvestmentCorporation,CITI bank,British telecom,Bank of America

Handling high level escalations from technical front

Creating detailed technical understanding documents by configuring the resources in the weblogic domain

Client Name: AEGON

Project Name: AEGON – Frontface

Period : April-2008 to Mar-2010

Role

Applications developer

Technologies

Java, J2EE, Struts, Oracle database10g, AXIS & POI, WebSphere 6.0, IBM RSA 7.0,Tomcat 5.0

Operating system

Linux and windows

Responsibilities:

Involved in creating the low level and high level design documents

Involved in complete SDLC process of the Application maintenance releases using agile methodology

Responsible for maintaining the environment for Dev,QA and UAT for the applications with respect to deployment and data source configuration

Creating system test cases for all the applications

Executing unit and system test cases based on the changes done to the application system

Estimation for the project releases and allocating tasks to the team

Involved in transition activities and knowledge transfer and prepare transition documents

Develop new functionalities based on the client requirements

Fixing the Application bugs by analyzing the Incident

Co-ordination with onsite/offshore

Preparing and Review of the understanding documents

Creating shell scripts for application server specific configuration like system properties and deploying applications

POC for the new implementation of technologies

Involved in project quality related activities and performed the role of PQA and DPA.

Client Name: BEA systems.,

Project Name: BEA – Weblogic technical support

Period : June-2006 to April-2008

Role

Developer relations engineer

Technologies

J2EE technologies, Weblogic 8.1.x,9.x,10.x, Apache Server, Sun one server,IIS server

Operation System

Microsoft Windows,Linux, Sun Solaris,IBM AIX

Responsibilities:

As a support engineer on WebLogic Server I carried out many interactions with clients in setting and tuning their WebLogic architecture

Installing, configuration and fine-tuning of different web applications on Weblogic Application server. IPlanet web servers are used to connect to WebLogic application server through NSAPI

Deploying application in various modes like staging, no stage and external

Applying patches to the existing systems and make everyone aware of Smart Update tool

Performance tuning by Managing and Monitoring the JVM performance by Weblogic Heap size, garbage collection, execute threads, EJB Cache size, JDBC pools and multi pools

Performance tuning was done with respect to system, connection pools. Execute threads and JVM heap size

Creating new managed servers for the production environment and setting them in cluster

Utilizing WLST in automating various aspects like deployment and creating domains

Wrote scripts (start, stop & ping) for web application server administration

Monitor the high CPU usages and analyze to keep the usage minimal for WebLogic processes

Supported on call 24/7 schedule for Non Production support and support for QA Teams in India and US

Configuring Nodemanager remotely to start the servers without default scripts.

Configuring one way and two way SSL

Analyzing thread dumps using tools like SAMURAI

Replicating issues in house based on the customer configuration to find the root cause and bugs

Configured Weblogic LDAP for user authentication for applications as well as WebLogic administration

Configured Load Balancing using HTTPClusterServlet and plugins for high availabilities.

Deploy J2EE applications onto WebLogic managed servers

Applying debug flags to troubleshoot events in production with respect to WebLogic Servers

Maintaining performance of the JVMs and analyzing the GC outputs and GC strategies.

Conducting trainings on the weblogic subsystems to the new joiners of the team

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