SUMMARY

• As an IBM certified System Engineer with 8+ years of IT experience in IBM WebSphere Application Server ND V6.1/V7.0/V8.5 on UNIX(Solaris/AIX/Linux) and Windows platforms
• Over 4 years of experience in administering JBOSS EAP 6.2/7.0 on Red Hat Linux 6.2/7.0
• Over 2 years of recent experience in administering MapR Hadoop 4.1
• Extensive experience indesigning,deploying,administering J2EE and Middleware solutions, integratingWebSphereND, WMQ,Apache Tomcat,JBoss EAP, Sun ONE, IBM IHS, Apache WebServers, iPlanet, WebSEAL, Squid, IBM Unica suite, Trillium and LDAP
• Strong experience in Administration and Maintenance of WAS NDclusters and JBOSS EAP clusters (vertical, horizontal) and deployment of applications in highly available, load balanced production environments
• Experience in design & implementation of both internet, intranet applications - DMZ and non DMZ
• Experienced in creating and configuring profiles, clusters, nodes, node agents for WAS ND
• Experienced in Installation, Configuration of JDBC Providers, JMS providers, Session Management, Virtual Hosts, Global Security and SSL Certificates.
• Highly experienced inShell, JACL and Jython scriptingfor administration, maintenance and troubleshooting - written scripts for ALL day-to-day activities - both WAS and shell.
• Experienced in deploying J2EE components (EAR/WAR/JAR) on WAS ND 6.0/6.1/7.0/8.5 using Anthil, Jenkins, WAS Admin Console and wsadmin scripts
• Deployment, Software installation, maintenance, fixes upgrades, general administration, troubleshooting and performance tuning of App & Web
• Experience in installing, configuring, managing MapR Hadoop clusters and Eco-System components (MapR-FS, Map Reduce, Yarn, Hbase, Hive, Sqoop, Oozie and Pig).
• Installed and Configured Sqoop to import and export teh data into MapR-FS, HBase and Hive from Relational databases.
• Streamlined Hadoop jobs and workflow operations using Oozie workflow engine
• Performed Decommissioning and Commissioning of nodes on running MapR cluster
• Highly experienced in configuring Work Load Management (WLM) for Websphere cluster, JBOSS cluster and MapR Hadoop cluster via Web Server, F5 and Central Dispatcher.
• Experienced in managing and installing Digital Certificates on Web servers.
• Good knowledge on Web Services, SOAP, XML, XSLT and UDDI.
• Experienced in installation, configuration and administration of IBM Unica suite products namely Marketing Platform, Marketing Operations and Campaign for versions 7.5 and 8.1
• Strong Analytical Skills & Good Communication Skills.
• Good at troubleshooting using Traces, Logs and Log Analyzer and App Dynamics.
• Knowledge in configuring and setting up of various security architectures for distributed enterprise applications involving LDAP and LTPA for implementing SSO (Single Sign On) for J2EE enterprise applications
• Experience in integrating Web application monitoring tools like OPNET App Internals /Response Expert at JVM level.
• Overall Strong experience in system Administration, Installation, Upgrading, Patches, Migration, Configuration, Troubleshooting, Security, Backup, Disaster Recovery, Performance monitoring and Fine tuning on UNIX systems.

TECHNICAL SKILLS

Operating Systems: IBM AIX 5.2/5.3/6, SUN Solaris 8/9/10, LINUX (REDHAT), Windows NT/2003/2008 Server and Windows XP/VISTA/7

Application/Web Servers: IBM WebSphere Application Server Base/ND 6/6.x/7/8.x, JBOSS EAP 6.2/7.0, Apache Web Server 1.3/2.0, WMB, WebSphere MQ, IBM HTTP Server 7.0/8.5, Oracle iPlanet 7, SunOne 6.1, Tomcat 5.0/6.0 and IIS 6.0./7.0/7.5 , Squid, WebSEAL, Passenger.

Big Data: MapR Hadoop 4.1

Database: ORACLE 8i/9i/10i,11g, SQL Server 2005/2008 and MS-Access

Java/J2EE Technologies: HTML, JavaScript, XML, Java Swing, J2EE 1.3/1.4, JDBC, Servlets, JSP, Java Beans, EJB and JMS

Network Protocols: TCP/IP, HTTP/HTTPS, SOAP, REST, SSL, SMTP, POP3, DNS, Telnet and DHCP

Scripting Languages: Jacl, Jython, Perl and UNIX shell Scripting

Development/Build Tools: RAD 6.0/7.0, ANT, Anthil, Hudson, Maven

Others: LDAP, Central Dispatch, F5 and IBM Data Power, CVS, SVN

PROFESSIONAL EXPERIENCE

Confidential, MN

System Administrator

Responsibilities:

• MapR Hadoop cluster installation and Configuration on multiple nodes.
• Installed, configured and integrated Ecosystem components (Hive, HBase, Sqoop, PIG and Oozie)
• Installed and Configured mapr-zookeeper, mapr-cldb, mapr-jobtracker, mapr-tasktracker, mapr-resourcemanager, mapr-nodemanager, mapr-fileserver and mapr-webserver
• Installed, Configured and Maintained MapR-FS, Map Reduce, Yarn, Hbase, Sqoop, Oozie, Pig and Hive
• Configuring volume groups, logical volumes and partitions on teh Linux servers and mounted file systems on teh created partitions
• Monitoring and Changes to teh configuration properties of teh cluster based on volume of teh data being processed and performed by teh cluster
• Installed and Configured Oozie workflow scheduler system to schedule Hadoop jobs
• Monitoring teh Hadoop cluster functioning through MCS
• Monitoring and analysis of teh MapReduce job executions on cluster at task level
• Inputs to development regarding teh efficient utilization of resources like memory and CPU utilization based on teh running statistics of Map and Reduce tasks
• Commissioning and De-commissioning of nodes from cluster in case of problems
• Supported/Troubleshoot MapReduce programs running on teh cluster
• Load data from relational databases into MapR-FS filesystem and HBase using Sqoop.
• Setting up MapR metrics with MySQL database to log metrics data
• Installed and Configured JBOSS EAP 6.2/7.0 on Redhat Linux
• Deployed EAR/WAR files on JBoss EAP 6.2 domain and standalone servers and maintained Load balancing, high availability and Failover functionality
• Integrated HornetQ with JBoss EAP 6.2.
• Involved in setting Jboss EAP 6.2/Jboss 7.0 environments across multiple machines with domain controller and host controller processes
• Worked with teh application team to integrate HazleCast module with application hosted in JBoss distributed server environment
• Configured 2-way SSL communication between client, Apache Httpd and JBoss EAP 7.0 Standalone servers.
• Configured and set up Secure Sockets Layers (SSL) for data encryption and client authentication.
• Analyzed and Fixed Out of Memory and Database connection issue using Heap Dump and Thread Dump analysis
• Supported/Troubleshoot migration of applications from Websphere 6.0 to JBOSS EAP 6.2
• Analyzed and fixed teh issues related to JBOSS database transaction manager and CXF Webservices call while migrating teh application from websphere to JBOSS
• Installed, configured and maintaining WebSphere Application Server Base/ND 6.1/7.0/8.5, and IBM HTTP Server 7.0/8.5 in Solaris/AIX/Linux and Windows.
• Migrated applications hosted in Websphere Application Server 6.1 to JBoss EAP 6.2
• Responsible for installation, configuration, support, and performance monitoring of high profile applications running on WebSphere Application Server and integrate with different Web Servers.
• Applying patches and plug-ins for WebSphere Application Server.
• Responsible for setting up teh Dev, Test, QA, Pre-Prod and Production Environments which includes installing teh WebSphere, fix packs, Creating Profiles, nodes, federation of nodes, was instances, Application Servers, Clusters, Virtual hosts, Data Sources, MQ Connection factories, Plug-in configuration, and Service Integration Bus Configuration.
• Deployed EAR/WAR files on multiple Servers/Clusters and maintained Load balancing, high availability and Failover functionality.
• Developed wsadmin, JACL, JYTHON scripts for automation of WebSphere Application Server including start/stop, creating and configuring serves, clusters, JDBC and MQ resources, deploying applications.
• Worked with IBM Support and development teams in resolving issues related to application memory leaks, analysing java cores and heap dumps using Thread and Heap analyser tools.
• Performed troubleshooting on Java applications using WAS logs, traces, Log Analyzer in production environment.
• Strictly followed IBC standard admin procedures and policies like Application Request forms, Audit Request Forms, Version Control, Change Management Control, Organizing or involving in bridge calls for remote teams, Weekly Implementation plans, Code promotion rules etc.
• Capable of successfully manage time, projects, and multiple priorities, provide root cause determination for enterprise-wide issues, and able to work well under pressure and time constraints and be able to adjust to a constantly changing, fast paced environment.
• Installation and configuration of J2EE applications (ears/war/jars) on WebSphere Application Server. Worked closely with developers in deploying ears and wars, configuring necessary database resources (JDBC Providers, data sources), MQ resources (Queue Managers, Queue destinations, Queue Connection Factories (qcf's), Message driven bean listener ports).
• Responsible for Tivoli Access Manager Application Support, Policy Server like how teh policy server will talk to LDAP user store schemas dat teh policy server uses for authentication, authorization etc, LDAP user store like configuring teh user store, modifying teh user profiles etc.
• Managed teh security and performance optimizations for EJB containers and web applications in IBM WebSphere, IBM HTTP Server and Apache web server. Generated http plug-in config and moved it to teh web servers. Troubleshoot problems for plug-in regeneration.
• Installed upgrades and fix packs to teh runtime environment as required decreasing vulnerability to production environment.
• Successfully mapped teh users and groups in LDAP Servers to teh enterprise applications running on WebSphere Application Server.
• Responsible for troubleshooting networking issues, opening tickets for DNS changes, firewall requests.
• Configured SSL communication between teh WebServer Plug-in and teh WebSphere Application Server.
• Involved extensively in troubleshooting teh issues and findings out root causes by analyzing core dumps in investigating and resolving system crashes.
• Provided 24/7 pager support and worked with WebSphere Level2 support on PMRs in complicated issue resolution.
• Experience in Jython Scripting to automate teh maintenance process of teh WebSphere to handle everyday System Administration tasks such as backup procedure, system cleanup, system tasks, etc.

Environment: IBM WebSphere App Server Base/ND 6.x/7.x/8.x, JBOSS, Windows 2003, J2EE 1.3/1.5/1.5, IBM HTTP Server 7/8.5, Oracle 9i/10g, 11g, RAD7, Apache, SunOne WebServer 6x, 7x, Squid, Central Dispatch, IBM Datapower, F5, Active Directory (ADAM), XML, Shell scripts, Passenger, TAM, WebSeal

Confidential, MN

JAVA/J2EE Developer

Responsibilities:

• Involved in all phases of teh Software development life cycle (SDLC) including Requirements gathering, designing teh application, implementing teh design, Testing and Maintenance Support.
• Drafted teh low level design based on teh customer requirements.
• Teh project was implemented following agile methodology.
• Involved in construction of web modules and EJB modules
• Involved in implementing database queries to support new products.
• Involved in teh construction of teh view layer.

Environment: IBM WebSphere App Server Base/ND 6.x/7.x, Oracle 9i/10g RAD7, JAVA, EJB, JAVA SWING, JSP and Servlets.