SUMMARY:

• Consultant has 13 years of experience in infrastructure and engineering support services with combination of technical skill sets in Websphere, Jboss, Tomcat, Apache, iPlanet,
• Sunone, Weblogic application servers.
• IBM Certified System Administrator WebSphere Application Server Network
• Deployment V6.
• Excellent conceptual base in Object - Oriented Design and implementation methodologies,
• Design Patterns, Web based architectures using web technologies like Struts and EJB.
• Expert in installing, configuring and trouble-shooting WebSphere Application Server
• 8.5/8.0/7.0/6.1/6.0/5.1/5.0 on Solaris/Linux/Windows platforms.
• Expert in installation and custom configuration of Apache HTTP Server, iPlanet Web
• Server, Tomcat and JBoss Application Server.
• Experience in migrating complex multi tiered applications from Jboss 4.x to Jboss 5. Expert in J2EE technologies like JNI, JDBC, JMS, JNDI, JTA, JAAS, etc. Expert in Performance Tuning high volume transaction applications using Tivoli Performance
• Viewer at various levels like Web Container, ORB Thread Pool, JDBC connection pool and
• JVM heap sizes.
• Expert in setting Global Security settings in adherence with corporate LDAP configurations. Experience in estimating and fine tuning JVM by analyzing and taking regular heap dump, checking stack traces and garbage collection utility periodically.
• Experience in best practices applicable for Websphere Application server troubleshooting, capacity planning, upgradation and maintenance to latest fix packs.
• Expert in configuring and clustering MQ Queues, channels etc. Knowledge of the concepts and design principles of Service Oriented Architecture (SOA). Knowledge of the concepts and troubleshooting skills for enterprise networks including routing,
• TCP analysis, firewalls, load balancing, etc.
• Knowledge of a variety of web services and their integration with the middleware stack including REST, SOAP, XML, JSON.
• Working with monitoring and logging tools (Splunk, New Relic) Knowledge and experience with Datacenter Virtualization. Experience in Disaster Recovery procedures. Actively participating in RCA process for problem records Excellent analytical and communication skills with leadership qualities.

TECHNICAL SKILLS:

Application Servers / IBM Technologies: IBM Websphere 5.0/5.1/6.0/6.1/7.0/8.0/8.5 (ND), Jboss 4.0.x/4.2.x/5.x/6.x/7x, Tomcat 4/5/6/7/8x, Sunone 7.0, IBM MQ Series 5.3,6,7.

Web Servers: IBM Http Server 2.0, Apache1.3, 2.x, iPlanet 6.x, IIS

Programming Skills: Java, J2ee, Struts, Hibernate, Webservices 2.0, Spring, Soap, Xml, JAX RPC-WS, Json, Wsdl, Soap, Active MQ, Mule Soft.

Scripting: Unix shell script, Java script, Jython, Perl

Database: Oracle 8i/9i/10g/11g, DB2 v9

Operating System: Solaris-2.8/8/9/10, Red Hat Enterprise Linux 4/5, zlinux s390x, IBM AIX 5.3, Open SUSE 10.3, Windows 2000/XP

Security: Netegrity Siteminder 5.5, Ldap, SSL, IntraWES

Monitoring Tools: Tivoli Performance Viewer, Thread/Heap/Resource Log Analyzer, Sitescope, Topaz, JON 2.4

Version Source Control: Pvcs, Subversion

Others: Ant, Http Watch, QMF, Toad, BigIp, Alteon, Open Deploy, Jenkins, Ngnix, Docker, Ansible, Splunk, New Relic

PROFESSIONAL EXPERIENCE:

Confidential, Columbus, OHIO

Responsibilities:

• Migrated applications from Jboss 4.0.3 to Jboss 5.1 EAP involving changes in configuration and application resource xmls. Performance tweaked issues cropping up after Jboss 5.1 migration using JON 2.4 Redesigned and standardized application deployment process for consistent deploy across all environment: s by bundling software code and configuration into RPM install. Re-migrated application from Jboss EAP 5.1 to Websphere 8.5. Required extensive code and configuration level changes from both server side and runtime because of the typical nature of the application. Extensive performance tweaks were required in all the environments to gauge for the same throughputs. Used company standard MW
• Websphere build to create new infrastructure environments for new application rollouts. Created, timely fixed and updated company standard secure configs for Websphere, Jboss Tomcat, Apache server installs. Responsible for patching security vulnerabilities found in Websphere, Jboss, Tomcat, Apache. Updated standard MW install scripts for Websphere, Jboss, Tomcat, Apache remote installs. Maintained version control through subversion for any update to the build scripts. Participated in DR exercise from MW side. Played with new technologies like Jenkins, Ansible, Docker, Ngnix to see its viability to fit in on Nationwide MW stack.

Confidential, Overland Park, Kansas

Websphere Administrator

Responsibilities:

• Provide operational and engineering support for more than 250 applications running on production, test, experimental and development environments. Extensive experience in installation, configuration and support of Websphere application server and IBM HTTP Server on Windows/Linux/Solaris environment. Designed and implemented logical and physical topologies of Websphere and IBM HTTP web server which included Websphere instances, clusters, nodes, load balancing and plug-ins. Configured connections for external data sources like DB2, Oracle. Experience in configuring virtual host, global security with Ldap.
• Monitored and generated reports on performance of web applications and their components using tools like Tivoli performance viewer. Planned and installed hot-packs, fixes and upgrades as and when required. Gathered heap dumps for analyzing performance bottlenecks. Troubleshooted application server issues involving networks, siteminder and database. Handled request tickets of users involving application server related configuration issues. Deployed code on production in accordance with Change Management practices. Perform maintenance via automated shell scripts over the weekends. Installed and managed SSL s for internet/intranet secured websites. Involved in raising PMR and tickets with vendor involving application server related issues. Performed disaster recovery activity from remote sites. Maintained documentation of technology stacks and their related configurations. Decommissioned obsolete servers/configurations from Websphere application servers.

Confidential

Apache Administrator

Responsibilities:

• Installation and custom configuration of Jboss, Tomcat and other J2EE software products on
• Solaris/Linux/Windows platforms.
• Configured virtual servers and services like JNDI Naming, Connection Pooling, Clustering JMS topic connectivity and Security for both Jboss and Tomcat servers. Extensively configured application server logging via log4j.xml for rotation, backups etc. Compiled and Installed and configured Apache binaries for Linux/Solaris systems. Configured Apache/virtual hosts with multiple Tomcat and Jboss using mod jk connector. Tweaked Apache thread configurations for performance boost with Tomcat and Jboss. Generated and installed SSL s for multiple virtual hosts of Apache.

Confidential

Websphere Administrator

Responsibilities:

• Involved in Planning, Designing and Installation of Websphere Application Server 6.0 Network
• Deployment on Linux, Solaris and Windows boxes for more than 150 productions applications.
• Configured enterprise applications on IBM Websphere Application Server 5.x/6.x and IBM Http
• Web Server 2.0 on Linux, Solaris and Windows platforms.
• Configured Websphere Workload Management for horizontal clustering. Installed and configured Apache 2.x and IHS Web Server 2.0 on Linux/Solaris/Windows. Installed and configured IHS Web Server Plug-In for IHS Web Server 2.0 connectivity with
• IBM Websphere Application Server 6.0.
• Configured jdbc and connection pool settings on IBM Websphere Application Server 6.0. Configured and handled Tivoli Performance Viewer and Resource Analyzer. Involved in troubleshooting issues such as federation and synchronization of nodes with
• Websphere Application Server Deployment Manager.
• Configured Service Integration Bus for services like jms, clustering etc. Identified application server memory leaks using tools like IBM Thread and Heap Analyzers. Generated and gathered data from applications http traffic using tools like httpwatch for identifying the performance bottlenecks. Gathered thread dumps in incidents like server crash and analyzed them using tools like
• IBM Thread Analyzer for drawing out root cause analysis of the incident.
• As Jboss, Tomcat, Apache Administrator
• Created a complete new environment setup to host 18 applications which were deployed on
• Jboss and Tomcat servers over Linux environment.
• Created and configured Jboss and Tomcat virtual servers for services like jndi naming connection pooling, clustering, jms, jdbc connectivity. Installed Apache on Linux platform with restricted module access along with ssl installation. Configured Apache using mod jk connector to connect with Tomcat and Jboss servers. Tweaked Apache thread configurations for performance boost with Tomcat and Jboss servers. Configured log4j.xml for application logging, log level rotation and daily backups. Handled tickets involving problems like jar file contentions and class loader issues. Provided production logs to developers on ticket request basis for troubleshooting application code related issues after code releases.

Confidential

Software developer

Responsibilities:

• Extensive web based auction application that sells secondary goods item under various categories. Buyers could bid for auctioned items, track the highest bid and check the estimated time left for bid out. Secure checkout was conducted with authorization from a third party authority interface for credit transactions.
• Developed web interface and integrated it with business logic. Developed business logic with caching as design pattern. Documentation of the project was also undertaken.

Technologies: Ejb, Servlets, Jsp, Java Script, Sunone application server 7.0, Oracle 8i.