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Sr.application Engineer Resume

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Seattle, WA

SUMMARY

  • Over 7+ years experience as a Websphere Administrator in increasing levels of responsibility and wide range of IT disciplines specializing in most of IBM Websphere products like Application Server on Redhat Linux, AIX, Solaris, CentOS and Windows NT platforms.
  • Involved in installation of fixpacks, eFixes and cumulative fixpacks.
  • Experience in the field of Enterprise Application Integration (EAI) of Software project life cycle like installation, planning, configuration, development, maintenance, planning, patching, Tuning, Troubleshooting and Integration of Websphere Application Server, weblogic, IBM Web Sphere MQ Server (queues, channels and listeners), Apache Tomcat, Jboss, IIS, IHS, Apache Http Server, Glass Fish application Server, SunOne webserver and LDAP.
  • Experience in design, implement and maintain integration systems infrastructure including fault tolerance and high availability solutions. Design and develop Integration solutions based on IBM Message Broker and MQ technologies. Install and configure IBM Websphere MQ, Message Broker and WBI Adapters on Unix and Windows based environments. Work with project teams to gather requirements to provide estimates, designs and solutions. Performance tune Websphere MQ and Message Broker. Work closely with the development teams to administer load testing and monitoring.
  • Strong experience in Administration and Maintenance of WAS Base, Express and ND clusters (vertical, horizontal and hybrid) and deployment of applications in highly available, load balanced production environments.
  • Experienced in WSadmin scripts to manage Websphere Application Server configuration. Creating, configuring and administrating profiles, clusters, nodes, node agents and node groups for application deployment and server run time operations.
  • Maintained complex infrastructure with more than 750 API’s hosted on Several platforms like AIX, Solaris, Linux and Windows both internally and externally.
  • Expertise in configuring type2 and type4 JDBC drivers, Data Sources, Virtual Host, SSL and Global security LDAP for IBM WebSphere Application Server.
  • Working experience with relational databases like DB2, ORACLE, SQL Server.
  • Expertise in developing Jython, JACL, Linux and UNIX shell scripts for automating application deployments and configurations Confidential enterprise level.
  • Configured Plug - ins, Virtual Hosts, and Host Aliases and SSL certificates through ikeyman.
  • Proficient in configuring and managing open source tools like RUNDECK, PUPPET, GECS and Nagios.
  • Expertise in working closely with Dev/Stress/QA team to identify performance bottlenecks using LoadRunner, Wily Introscope, Tivoli Performance Viewer, IBM HeapAnalyzer, Nagios and other monitoring tools.
  • Working experience with ticketing tools like BMC remedy, jira and Service now.
  • Successful implementations of Workload Management (WLM) using cloning and clustering techniques including Horizontal and Vertical Clustering for failover and backup/recovery processes.
  • Experience with various procedures and policies required for escalation and outage resolution with Strong documentation skills.
  • Excellent organizational and analytical abilities teamed with effective oral and communication skills.
  • Ability to provide 24/7 on call support for production environments. Able to work efficiently in a group as well as independently.
  • Strong analytical skills and problem solving skills. Willingness and ability to quickly adapt to new environments and learn new technologies.

TECHNICAL SKILLS

Operating Systems: WINDOWS 2000/2003/08/12 , RHEL 3/4/5/6, HP-UNIX,CentOS, Sun Solaris 8/9/10, AIX (5.1/5.2/5.3), MS-DOS.

Web Servers: IHS 6.0/6.1, IIS, Sun One Web server 6.0/6.1, Apache Tomcat 7.x.

Application Servers: WAS 5.x/6.x/7.0/8.0, WebSphere MQ Series (5.3, 6.X & 7.X),Glass fish, Jboss 5.x/6.x,Weblogic

Programming Languages: C, C++, Java,.net, HTML, CSS, XML, JavaScript, Shell script, Jython, JACL

Network Protocols: TCP/IP, HTTP/HTTPS, RMI/IIOP, Putty, Humming Birdv7.1.

Databases: SQL Server 2008, Oracle 9i/10g/11g, IBM DB2 8.x/9.x,, PL/SQL, OEM

Monitoring Tools: Jira, BMC remedy, MQ Explorer, Service now

PROFESSIONAL EXPERIENCE

Confidential, Seattle WA

Sr.Application Engineer

Responsibilities:

  • Installed, configured and Maintained several J2EE applications using different application servers like Weblogic, Websphere Application server 8.0, Jboss Application server, Websphere MQ.
  • Responsible for install/configure and operational support of (production, staging) environments for multiple projects running on Oracle Websphere, Weblogic, iPlanet web server, Unix/Linux.
  • Maintained complex infrastructure with more than 750 API’s hosted on Several platforms like AIX, Solaris, Linux and Windows.
  • Responsible in setting up environments to support Performance and Load test for multiple Product launch events.
  • Responsible for Maintaining SSL certificates across multiple data centers.
  • Experience in implement and deploy Fusion capable clients and services built upon key application servers like WebLogic, WebSphere, and JBoss.
  • Responsible to work closely with Dev/Stress/QA team to identify performance bottlenecks by standardizing and supported the application by playing key role in achieving seven 9’s (99.99999%) of availability to the clients.
  • Worked with development teams to add new features to the middleware application to improve logging, monitoring, and general sustainability.
  • Used Puppet as infrastructure management tool to spin up new environments.
  • Used Jenkins as continuous integration tool for deployments.
  • Implemented a new SOAP/RESTful applications in core middleware application for Confidential &T running on Apache webservers, Solaris Linux and Oracle.
  • Configured WebSphere resources like JDBC providers, JDBC data sources, connection pooling.
  • Implement performance monitoring tools like Wily introscope, TPV, Nagios and IBM Heapanalyzer.
  • Monitor systems capacity and performance, plan and execute disaster recovery procedures, and provided Tier2 technical support, on-call rotation, troubleshoot issues, respond to alerts/incidents/outages, analyze thread dumps and Heap dumps.
  • Expertise in supporting enterprise based distributed applications over a wide range of operating environments on a 24/7 rotation basis for high volume, secure transactions and Web services.
  • Utilizing monitoring tools to generate performance metrics, track trends, identify issues/poorly performing code and drive improvements.

Environment: WebSphere Application Server Network Deployment 7.1, 8.0, Websphere MQ, Weblogic, Linux, IHS Web Server7.1, 8.0 Wily.

Confidential, Macon, GA

Sr. WebSphere Administrator

Responsibilities:

  • Installation, Configuration and Administration of IBM WebSphere Application Server 7.x, Weblogic 8.x version on AIX, Linux and Windows Environments.
  • Used WebSphere Admin Console and wsadmin-jython/jacl scripting to install and update enterprise EAR.
  • Wrote Jython/jacl scripting for start/stop clusters, servers and for auto deployments.
  • Installed, configured and propagated IBM HTTP server and its Plugins for managed and unmanaged nodes
  • Configured WebSphere Application Server on multiple platforms for both horizontal and vertical scaling and administrated the large environment.
  • Configured Web logic to produce and gather garbage collector logs, JVM performance metrics, and the use of profiling data to leverage from Session and State beans for different aspects of the application.
  • Involved in problem tracing, performance tuning, trouble shooting of problems related to the applications deployed on Web Logic Application Server.
  • Created Data sources and connection pool properties for DB2 and SQL server databases.
  • Implemented security for the WAS environment and Authorizing and authenticating the users.
  • Implemented SSL for the WAS environment, Installed VeriSign certificates for securing the communication.
  • Deployed IBM Tivoli Access Manager for e-business, and configured connections to Directory server for secure user authentication
  • Configured MQ/JMS for interaction between the applications internally.
  • Analyzed the application performance using Tivoli log analyzer, j-probe software’s.
  • Configured and maintained SSL connections between Policy Server, WebSEAL, and LDAP user registry for secure communication
  • Configured the JDBC resources and created the connection pooling with respect to the database (oracle, DB2).
  • Worked with Development team to deploy application in to WAS and worked with DBA team to configure data source for the application and get the issues resolved.
  • Experience using monitoring tools Introscope and Patrol .Coordinate with Introscope and Petrol admin team to monitor specific errors that need to monitor.
  • Resolved memory leakage problems by analyzing heap and core dumps by enabling Verbose GC.

Environment: IBM Web Sphere Application Server 8.0/7.01/5.1 , WebLogic8.x, DB2, SQL server, AIX, Linux and Windows 2008/2003, TPV, j-probe, loganalyzer Java 1.6, IHS 7.0/6.1

Confidential, Bensenville,IL

Sr. WebSphere Administrator

Responsibilities:

  • Installed, configured, and maintained IBM Http Server, WebSphere Application Server Network Deployment (ND), 5.1/6.0/6.1/7.0 Created profiles using Profile Creating Wizard and silen profile creation.
  • Migrated existing applications from WebSphere V6.x to V7.x.
  • Migrated the automated deployment process, wsadmin scripts for production/Test/Development from WebSphere Application Server ND 6.x to WebSphere Application Server ND 7.x.
  • Installed the Refresh Packs and cumulative fixes to WebSphere ND V6.x environment, for WebSphere, plugins and IHS.
  • Experience in deploying the applications both from the command line using WSADMIN commands and from the admin console.
  • Created the Clustering Topology in WebSphere Application Server ND V6.x/ 7.x to achieve Work Load Management (WLM), High availability, Load Balancing and Hardware fail over.
  • Configured Web server plug-in to directing dynamic requests to application servers for load balance in clustered environment.
  • Installed EARs, WARs and configured application specific JVM settings, Web container parameters using the Admin Console and WSADMIN.
  • Involved in configuring WAS with Security Appliances such as LDAP.
  • Configured WebSphere resources like JVM heap settings, JDBC providers, JDBC data sources, connection pooling, Virtual Hosts, Global Security and SSL.
  • Coordinating with various teams to set up databases, set up load balancer (CSS load balancers) rules, and defines rules on the firewall when IBM Http Server is in the DeMilitarized Zone (DMZ).
  • Knowledge of WSADMIN (Jython) scripts using in order to automate the process of WebSphere deployment and configuration. Working Knowledge in using WSADMIN (AdminConfig, AdminApp and AdminsTask) commands.
  • Experienced in Performance tuning such as tuning the web server by specifying the parameters for the maxclient, start servers and maxspareservers. Tuning the database connection pool settings. Tuning the Java Virtual Machine (JVM) by specifying the minimum and maximum heap size.
  • Installed and configured IBM MQ Series on AIX, creating Queue connection factories, Topic connection factories and JMS Activation Specification’s for MDB’s in coordination with WebSphere MQ.
  • Used Tivoli Performance Viewer to monitor WebSphere Applications and tuned the environment accordingly like changing the JVM Heap, and Connection Pool sizes.
  • Troubleshooting Admin Server start-up issues, Memory leaks, Java code defects after deployment, and class path issues.

Environment: WebSphere Application Server V6.1, JBoss Application Server v4.2, Apache 2.0.47, IHS 6.0/6.1, AD,Tivoli Access Manager, SQL, TPV, Wily Introscope 6.x, IBM AIX 5.x/6.x, RedHat Linux AS 3.0

Confidential 

Websphere Admin

Responsibilities:

  • Installed, configured, and maintained IBM Http Server, WebSphere Application Server Network Deployment (ND), 5.1/6.0/6.1. Created profiles using Profile Creating Wizard and silen profile creation.
  • Installed EARs, WARs and configured application specific JVM settings, Web container parameters using the Admin Console and WSADMIN.
  • Involved in the full life cycle implementation of the project including analysis, design, and development.
  • Involved in configuring WAS with Security Appliances such as LDAP.
  • Created the Clustering Topology in WebSphere Application Server ND V6.x to achieve Work Load Management (WLM), High availability, Load Balancing and Hardware fail over.
  • Knowledge of WSADMIN (Jython) scripts using in order to automate the process of WebSphere deployment and configuration. Working Knowledge in using WSADMIN (AdminConfig, AdminApp and AdminsTask) commands.
  • Used JavaServlets to service the http requests.
  • Used JDBC to connect to the OracleDatabase.

Environment: Websphere V6.x, Jython, LDAP, Java Scripts, Oracle 8.

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