SUMMARY

• Middleware systems engineer with 8 years of experience in implementation and management of enterprise grade web solutions employing diverse Middleware technologies.
• Successfully delivered numerous build, migration and automation projects.
• Handled major escalations on issues surrounding web/ application servers, authentication / authorization plugins, database connectivity, enterprise messaging.
• Vital middleware resource in application performance tuning and capacity planning teams.
• Well versed with enterprise change and incident management processes.
• Excellent communication and technical documentation skills.

TECHNICAL SKILLS

Web and Application Tier: Oracle weblogic server 8.x/9.x/10.x, Oracle weblogic portal 8.x/10.x, Sun Java Application server, Apache http server, Apache Tomcat, Jboss, iplanetV6.0/7.0, Sun Java Portal server, Oracle SOA suite

Operating systems: Solaris 9/10, Redhat Enterprise Linux, AIX, SUSE Linux, CentOS, Windows

API's and Standards: JMS, JDBC, XML, SAML,WSDL, JNDI,XQJ,LOG4J,ESAPI

Integration: Oracle service Bus, Sun Access Manager Web/J2EE plugin, Open SSO, RSA webagent, Siteminder webagent, iPhrase searchWebsphere Content Discovery server, Oracle Secure Search

Protocols: HTTP, HTTPS, SOAP,SSL/TLS,RPC,FTP,TCP,UDP, LDAP

Scripting: Shell, Perl, ANT, WLST, AWK, TCL

Change Management tools: BMC Remedy, Impact, ISM, Confidential Rational Clear Quest, HP Quality Center

Environment: Oracle 9i/10g/11g databases, Confidential DB2, Confidential MQ, Sun Seebeyond, Confidential Cognos, Axway Tumbleweed, Cisco CSS/CSM, Citrix Netscalar, Cisco Pix firewall, F5 Big IP loadbalancer.

Troubleshooting / Office Tools: Fiddler, Wireshark, OpNet, Jmeter, Nagios, Sitescope, Wiley, Samurai, JProfiler, JRockit Mission Control, NetInsight. AWStats, Microsoft Excel/Visio/Project, Dia

PROFESSIONAL EXPERIENCE

Confidential - CO

Middleware Engineer

Responsibilities:

• Administered middleware systems on various commercial accounts including Confidential of Massachusetts, Confidential, Confidential and Confidential .
• Administered SunOne version 6.0/7.0, Apache 2.X, IHS webservers with reverse proxy / forward proxy configurations.
• Install, Configure and support J2EE application servers - Oracle Weblogic server 8.0/9.0/10.x, WebSphere Application server 6.x, Sun Java application server 9.x, Tomcat & Jboss.
• Built complex middleware environments with apache 2.2 webserver, Tomcat 5.5/6.x, exploiting a gamut of features offered by apache modules including mod rewrite, mod alias, mod proxy, mod cache, mod ldap,mod jk .
• Key player in Confidential 's data center migration from CSC data centers to Confidential datacenters.
• Configured Sun Access Manager J2EE agent and RSA agent for protecting resources on weblogic / tomcat environments. Configured Sun Access Manager webagent 2.0 with apache 2.2 webserver.
• Administered Unica NetInsight 8.X and AWStats.
• Managed iPhrase 4.7.3 search engine. Configured and migrated search deployments from iPhrase4.7.3 to OmniFind 8.3.
• Administered NPI Portico Integration Gateway, inbound / outbound feeds and Portico web application.
• Scripted dozens of ant build scripts, shell / WLST scripts as part of various automation projects to support middleware and application functionality.
• Used Interwoven Control Hub, Teamsite and Documentum for code and content deploys.
• Expert in troubleshooting issues related to JDBC, JMS, proxying, authentication & authorization plug-ins.
• Successfully lead Middleware teams during multiple Disaster Recovery Exercises’ to recover inscope applications for the DR event well within the RTO (Recovery Time Objective).
• Well versed with change /incident management process and change management tools such as BMC Remedy / Impact.
• Work closely with project managers, application developers, database administrators, network administrators, vendors and business teams in the process of delivering middleware services.

Confidential, Montvale, NJ

Production Support Engineer

Responsibilities:

• Built and managed n-tier web environments with Weblogic server, Weblogic Portal, Apache Webserver, Sun Java Webserver, Aqualogic service bus and Sun Secure Search.
• Planned and implemented upgrades and patching on WebLogic Server 9.2 /10.3 and configured webservers for reverse proxying.
• Managed PKI, especially SSL certificates on webservers.
• Migrated Apache 2.0 footprints to Sun Java Webserver 7 and tuned the filecache, thread pool, keep alive parameters to optimize webserver performance.
• Managed SOAP and HTTP webservices and performed business /proxy service management and data transformations in service bus environment.
• Administered Coherence servers, Coherence agents on weblogic nodes. Configured various application caches in coherence caches files.
• Isolated and resolved issues surrounding weblogic portal caches by collecting and analyzing data related to cache hit/miss ratio, ttl, current entries, max entries, netuix timing's etc., captured using cache monitoring jsp's.
• Collaborated with application and testing teams during performance tests.
• Enhanced application server performance by tuning heap parameters, GC algorithms, JDBC pools, thread pool size .Used tools such as JVisualVM, VisualGC along with native OS tools to capture data for analysis.
• Created Foreign JMS server, JMS Module, Subdeployment, Connection factory and foreign destinations to integrate Weblogic with MQ.
• Deployed Siteminder agent for weblogic and configured identity asserter, configured policies for authorization provider. Performed header and protocol level troubleshooting to resolve issue during this deployment process using tool such as Wireshark and fiddler.
• Resolved highly complex issues relating to session persistence, application deployments, class loading, database connectivity, clustering, application caches, and messaging.
• Wrote ANT build scripts to automate application build process and WLST/Shell scripts to monitor weblogic server health.
• Monitoring application server performance using WILY Introscope.
• Prepared technical project documentation and run books which included detailed Visio diagrams.

Confidential, Roseland, NJ

Web Support Engineer

Responsibilities:

• Installed and configured Sun Java Application server, upgraded WebLogic 8 SP 3/4/5 environments to SP 6 and 9.x to 10.x.
• Installed Sun Java System Portal Server 6.1.
• Configured iPlanet webserver to proxy requests to applications running on Weblogic, Cognos, and WebSphere etc.
• Automated the deployment of EAR, WAR and J2EE applications using WLST scripting tool and weblogic deployer tool.
• Integrated ant build scripts with multiple deployment tools.
• Configured Apache webserver in forward proxy configuration along with mod cache.
• Installation and Renewals of SSL Certificates for web and application servers.
• Deployed Mercury ITG version 6 built on Jboss application server.
• Troubleshooting Connection Problems from JDBC Clients to Real Applications Cluster (RAC) Databases.
• Set JMS queues and connections between WebLogic WLS JMS and Confidential MQ Series.
• Handle Heap Memory issues, Server Hang, Deadlock, application level lock, database issues by taking thread dump & Heap dump to analyze the root cause of the issue.
• Created Domain Templates to replicate the environment on new weblogic servers.
• Installed NAGIOS to proactively monitor WebLogic Server Health for service interruptions.
• Performed memory analysis and runtime performance profiling using jRockit Mission Control.
• Patched WebLogic Servers with latest security patches.
• Acted as technical liaison between development and operations teams, management of releases on live systems.

Confidential

Systems Engineer

Responsibilities:

• Administered web infrastructure running on Apache webserver and Apache Tomcat.
• Integrated apache webserver and tomcat using mod jk and configured caching at the webserver using mod cache.
• Installed and customized LAMP servers along with open source content management systems such as Joomla and Dragonfly.
• Created IP based virtual hosts on Apache Web server 2.2x and secured communications with mod ssl module to enable SSL support.
• Analyzed thread and heap dumps. Used gdb to analyze core files.
• Designed and Implemented data backup plan using Confidential backup system.
• Created logical volumes and dynamically resized (expanded and shrunk) them to meet the space requirements for critical file systems.
• Developed Perl and Shell scripts to automate day to day tasks.