Websphere Admin

PROFESSIONAL SUMMARY:

Over *+ years of extensive experience in IT industry which includes SOA Suite, Oracle WebLogic Server/Portal Administration for Production, Staging, Development, UAT and QA environments.

Proficiently handled all the aspects of Installation, Configuration, Troubleshooting, Load Balancing, Clustering, Applications Deployment, Performance Tuning and Maintenance of WebLogic Server versions 7.x/8.x/9.x/10.x/11.x/12.x.

Extensive experience in deploying application archives like JAR, WAR, EAR and RAR files on WebLogic Application Server in single and multi-cluster environments.

Extensively worked on Oracle SOA suite administration, installation, configuration, deployments, performance tuning and customization.

Extensive experience in implementation and maintenance of Enterprise applications using WebLogic Server 8.1/9.x/10.x/11.x/12.x on UNIX (Solaris/Linux) and Windows server environments.

Experienced in Webcenter and Oracle Application Server administration and deployments.

Well versed with deployment, migration, patching, upgrades and maintenance of middleware applications.

Proficient in Apache, IIS, iPlanet, Oracle HTTP server configuration.

JDBC Connection pool and Multipool configuration with Oracle, MySQL, DB2 and SqlServer.

Well versed with setting up multi-clustered WebLogic environments in order to provide high availability, load balancing, session replication, Disaster recovery, reliability, redundancy, scalability and fail over support.

Expertise in analyzing the log files, thread dumps, JVM dumps, and Exception stack traces.

Patch updates using BSU, service pack upgrades and version upgrades.

Performance tuning of WebLogic server with respect to heap, threads and connection pools.

Tuning JVM heap size to maximize the number of client accessing the applications.

Automation of WebLogic server installation, configuration and application deployments using Python, Ansible.

Automation of domain creation using WLST, ANT, and domain templates.

Experienced in using Nagios, Wily Introscope for monitoring, troubleshooting and performance tuning of WebLogic servers.

Experienced in Third party profiling tools – JProbe, Wily introscope, performasure, HP open view, Remedy & Optimize IT.

Highly proficient in automating various tasks using Ansible, Chef, Puppet, perl, python, wlst and shell.

Experienced in configuring F5 Big-IP Hardware Load Balancers, HA Proxy and A10 load balancers.

Extensive working experience on UNIX, Linux and Windows platforms and shell scripting.

Broad knowledge in networking and programming logics using PL/SQL and Java.

Proficient in using ITIL framework, use of ITIL in order to decrease rework and to improve resource utilization.

Knowledge of system analysis and design, and business process development and improvement.

24/7 production on-call support for WebLogic, SOA Suite and multiple middleware products.

Excellent technical, analytical, troubleshooting and debugging skills.

Strong customer service, interpersonal and communication (both verbal and written) skills.

Ability to work in a team-oriented, multi-tasking, fast-paced and matrix managed environments.

EDUCATION:

Bachelor of Technology in Computer Science Engineering from ANU, Guntur, India.

TECHNICAL SKILLS:

Application Servers

WebLogic 7.x/8.x/9.x/10.x/11.x/12.x, Oracle SOA Suite 10g/11g/12c, Portals, Webcenter, UCM, SES, ODI, OIM, LDAP, Endeca, EUS, Websphere ESB, WebSphere Application Server 4.0/5.0/5.1/6.0/6.1/7.0/8.0,JBOSS4.x/5.x, WebSphere MQ 6.0/7.0, Site Minder 6.0/12.0, WebSphere Commerce server 6.x/7.x, NextGen.

RDBMS

Oracle Database 9i/10g/11g, IBM DB2

Web Servers

Apache WebServer 1.2.2/1.3/2.0/2.0.54/2.2, IBM HTTP Server 1.3.26.2/2.0.42/2.0.47/6.0/6.1/7.0, Oracle iPlanet 6.x/7.0, Sun One and IIS

Networking

Cisco Inter-networking, SAN, Windows Systems and Security Engineering, HTTPS TCP/IP, HTTP/HTTPS, RMI, SOAP, SSL, SMTP, POP3, NFS, DNS, LAN/WAN Hardware, remote access (Meta Frame, Citrix)

Programming & Scripting:

PL/SQL, Java AWT/Swing, C#, ASP.Net, XML, Perl, HTML,Shell(Bash,ksh,Csh), Python, WLST.

Operating System:

Linux (Redhat, Centos, SUSE), HP-UX, Solaris and IBM AIX 4.5/5.1/5.2, Windows

Monitoring Tools

Wily Introscope, OEM Grid Control 10g/11g/12c, JRockit Mission Control, JConsole, IBM Tivoli

General Tools

TOAD, SQL Developer, Adobe CQ, Inquira, OBIEE, JDeveloper, Team Foundation Server(TFS), Jenkins, wily introscope, Mulesoft ESB, SVN,GIT,MAVEN,ANT, SAN PVCS, OEM, Tortoise, SVN, Mercury IT Governance, Mercury Quality Center, JIRA, Share Point, Project Time, Change Request Team Track, IBM Maximo, Anthill, ServiceNow, File Zilla, WINSCP, Putty, ESP, CA Clarity PPM, Release Management.

PROFESSIONAL EXPERIENCE:

Comcast Corporation, Philadelphia, PA Aug 2014 – Till Date

System Engineer

Responsibilities:

Responsible for building new Production and Staging environments with multiple WebLogic clusters spread across geographically diverse data centers which can support up to 750K subscribers.

Setup disaster recovery environment.

Installed, configured and administered WebLogic Server 10.3.6 in a multicluster Environment.

Upgraded WebLogic from 10.3.2 to 10.3.6 and also patched WebLogic servers.

Created WebLogic server Domain and multiple clusters with multiple managed server instances.

Wrote WLST scripts to create domain, JDBC datasources, JMS servers, Queues, Topics, Machines, FileStores, Store and Forward Agents and also to setup log rotation.

Created and configured generic, multi and grid link datasources in WebLogic.

Deployed multiple ear application files and targeted them to multiple clusters.

Configured SSL for production environment.

Automated the process of WebLogic installation, configuration and application deployments using Ansible.

Automated the process of Apache Webserver installation, configuration using Ansible.

Responsibe for the A10 loadbalancer configuration and also for configuration of the supporting application layer (Tomcat, Apache).

Setup monitoriting and metrics using Nagios for various environments.

Monitored the health of various servers in Dev, QA, TPS and Production environments.

Applications Performance Tuning and Performance Monitoring.

Used Gerrit code review to push/checkin code changes.

Documented build and install procedures, configurations, checklists, various issues and root cause analysis results in Confluence wiki on a daily basis.

Coordinated with the database team to troubleshoot database issues with the 3-node Oracle RAC Cluster.

Coordinated with the networking team to troubleshoot multicast issues in the WebLogic clusters.

Coordinated with the QA team post environment build to validate the build and also to troubleshoot any issues.

Created JIRA tickets to report and tracks various issues.

Attended daily scrum meetings, reported tasks progress and roadblocks.

Provided 24/7 on call support for production environment.

Environment: WebLogic 10.3.x, RHEL 6.x, CENTOS 5.x, Apache 2.x, Nagios 2.6, Oracle RAC, Tomcat, Kafka, Zookeeper, JMS, JDBC, Ansible, Shell, Perl, Python, JIRA, Confluence Wiki.

First Data Corporation, Omaha, NE Sep 2012 – July 2014

WebLogic/SOA System Administrator

Responsibilities:

Installed and configured Oracle SOA Suite 11g components in Oracle Web Logic Server domains Environment.

Installed, configured and administered WebLogic, Tomcat application server.

Configured the high availability setup for fusion middleware. This includes setting up Oracle WebLogic servers, WebLogic Portal Servers in a cluster and Oracle HTTP servers.

Configured the web servers with a load balancer.

Installed and configured Adobe experience manager (CQ).

Monitored and managed SOA Components by using the Oracle Enterprise Manager, Fusion Middleware Control Console to perform administrative tasks.

Installed, configured and monitored Oracle Service Bus(OSB) on UNIX/AIX 9/10 in multi domain environment.

Configured OSB Startup scripts.

Setup and configured LDAP for authentication.

Installation, Configuration, Deployment and Maintenance of SiteMinder Components like the Policy Server, Web Agent, Policy Store and Key Store.

Managing and monitoring BPEL Component instances and faults.

Created RCU and aslo maintained Oracle Service Bus (OSB).

Configuring SOA composite application resources, Configuring JMS Servers and active MQ modules on SOA and OSB.

Installed and configured SSL certificates for Apache web server in production environment.

Managing and monitoring service engines, and updating the state of SOA composite applications.

Loggings in servers, component engines and composites levels.

Tuned the JVM for better application server performance.

Extensively used verbose GC for garbage collection and tuning heap size to reduce memory leaks.

Performed exception analysis and coordinated with the development team in order to resolve issues.

Performed extensive troubleshooting by using stack trace analysis and tuned JVM by changing heap sizes appropriately.

Created and configured Data Sources for database connectivity & JMS resources.

Developed shell & WLST scripts to perform automated deployments.

Managed and monitored the JVM performance by WebLogic Heap Size, Garbage collection.

Performed application deployments in Dev, QA, Pre-Prod and Prod Environments.

Provided 24/7 basis on call support for production.

Environment: SOA Suite 11g, BPEL, OSB, JMS Adapter, Tomcat, Weblogic Server 10.3.x/9.x, WebLogic Portal servers, JDK 1.6, J2EE, PEGA, JSP, Servlets, EJB, LDAP, JDBC, XML, SunOne, Siteminder, Oracle9i/10g, HP-Open View, Site Minder, WLST, Python, UNIX (Solaris 8/9.0/10.0, RHEL), Windows

Pearson Publishing, Upper Saddle River, NJ Nov 2011 – Sep 2012

WebLogic/SOA Administrator

Responsibilities:

Installed, configured SOA Suite, WebLogic 10.3.x Servers, WebLogic Portal Servers, Oracle Service Bus Domains and Clusters.

Experience in backup and recovery of Oracle SOA suite dehydration store.

Primarily responsible for designing and implementing the application process flows with BPEL.

Installed, configured and monitored Webcenter, Siteminder.

Involved in the configuration of F5 Big-IP hardware Load Balancers to increase throughput, performance and achieve reliability.

Monitored performance by using OEM Grid Control 10g.

Configured message queue (MQ).

Configured global security in WebLogic using LDAP authentication.

Installed and configured WebLogic 8.x/9.x/10.x plug-ins in Apache 2.x.

Created and configured Data Sources for database connectivity and JMS resources in WebLogic Server.

Install, configure and monitor and maintain OSB in multi domain environment.

Involved in designing SOA interfaces with BPEL and ESB for different applications.

Used Ant to build the application.

Handled and resolved escalated tickets from the Support Desk using the Remedy ticket paging system.

Experience in setting of high availability and clustering for Oracle SOA suite.

Installed, configured, administered and monitored BPEL, ESB, BAM.

Involved in maintenance of production SOA instances.

Experience with WebLogic Integration administrator and configuration using application integration platforms.

Development, deployment and testing of various BPEL Processes.

Installed and configured Oracle Access Manager and Oracle Internet Directory.

Configured continuous integration build and deployments through Electric Commander, Maven and Ant scripts.

Monitoring application performance using Wily Introscope. Setting up the Introscope to alert for various metrics (CPU, heap, threads).

Alfresco and Fatwire Content Manager tasks like Content publishing, repository sync, sand box management.

Used Cotendo content delivery service for sending publishing Static content across globe.

Configured coherence servers through console.

Configured software components for managed WebLogic services on Server Farms and Cloud Services.

Worked as Performance Capacity Engineer for WebLogic and other middleware infrastructure.

Performance tuning at WebLogic domain level, OS level, JVM heap, threads, and JDBC and JMS subsystems.

Upgraded WebLogic server 8.1/9.2 to 10.0.x.

Deployed applications (WAR, JAR and EAR) using WLST Service Provisioning System.

Installed and Configured SunOne, Apache 2.x WebServer as a proxy plug in for WebLogic Server 10.0.x.

Environment: Oracle SOA Suite, WebLogic Server 8.1/9.1/10.x, RHEL, OSB, Apache, SunOne webserver, Tomcat, WebLogic portal, JDK1.5, J2EE, JSP, Servlets, Siteminder, EJB, JDBC, XML, Oracle 9i, Ant 1.5.1

Dollar Bank, Pittsburgh, PA June 2009-Nov 2009

WebLogic Administrator

Responsibilities:

Performed WebLogic Server administration tasks such as installing, configuring, monitoring and performance tuning.

Performed J2EE application deployments including JAR, WAR, and EAR files.

Maintenance of WebLogic servers in production, development, QA and training environments.

Installed and configured Apache web Server 2.0, Tomcat 6.0 in various environments.

Responsible for Load balancing and Performance tuning for various WebLogic Instances.

Converted and automated builds using Ant. Scheduled automated nightly builds using cruise control.

Configured users groups and Global Roles.

Configured Clusters, Server groups and Cloning for improved availability and failover capacity.

Used BMC software for service management and performance management.

Created and configured Data Sources for database connectivity & JMS resources.

Configured global security in WebLogic using LDAP authentication.

Created domain configuration scripts to configure new domains, modify existing domains.

Developed UNIX & WLST scripts to perform automated deployments.

Created crontab scripts for timely running jobs, performed Thread Analysis manually and performed Heap Analysis manually.

Analyzed thread dumps & heap dumps for WebLogic application server.

Involved in periodic backing up of configuration files.

Performed system administrator level duties such as adding/deleting users, regularly monitoring user level activity, checking system logs, and monitoring system performance.

Provided 24/7 on-call support for production environment.

Environment: JDK1.4, J2EE, Jrockit8.1, JSP, RHEL, WinNT, BMC, Servlets, EJB, LDAP, JDBC, XML, Oracle 9i, WebLogic Server 9.2/8.0, Ant1.5.1, HP-UX, Solaris, Apache web server, SunOne web server

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