System Administrator Application
Resume:
Summary :
Over *+ years of IT industry experience in Systems Administration IBM WebSphere Application Server 5.x/6.x,7.x/8.0/8.5.5, IBM HTTP Server, Apache with strong knowledge of operating systems including Windows NT/2000/2003/XP, AIX, Linux.
Extensive and detailed knowledge of Administration and Production Support in Application Server for various platforms including issues related to Migration, Packaging and Deployment of applications, Performance Tuning, Security management, Troubleshooting, and Work load Management.
Applied Fix packs / fixes / Refresh packs / cumulative fix packs for WAS using Update Installer and update.sh.
Good working experience with Secured Socket Layer (SSL), creating self-signed certificates, generating certificate requests, Import/Export certificates and creating key databases.
Highly skilled in updating plugin and config file for troubleshooting and improving performance.
Deployed applications on multiple WebSphere servers and maintained Load balancing techniques (Horizontal and Vertical Clustering), high availability and Failover functionality using Work Load Management (WLM).
Proficient in deploying applications in WAR, JAR, and EAR formats, as requested by the application teams on the respective environments.
Performing Installation and configuration of IBM HTTP Server. And experienced in integrating IBM HTTP Server, LDAP and Oracle with IBM WebSphere Application server on various platforms.
Experienced in applying plug-ins for WebSphere application server.
Strong Knowledge in configuring JDBC Provider and JMS connection factories, Configured Web Sphere Application Server in conjunction with DB2, Oracle.
Experience in setting up of Nodes, data sources, Virtual host and configuration of Web Sphere Application Server
Successful implementations of Work Load Management (WLM) using clustering techniques.
Administering and monitoring tasks related to the support of Web Sphere Application Server (WAS) in Linux and Windows Environment.
Configuring Virtual Host, Global Security, SSL, LDAP at given scope and created users roles for monitoring application server, console users and console Groups.
Experienced in handling multiple application server nodes using WebSphere Application Server Network Deployment Manager.
Good Knowledge at trouble shooting various problems in different stages of development using log files and Traces.
Experienced in configuring security and session management, performance tuning, and applying patches and fix-packs of WebSphere Application Server on AIX and Windows environments.
Worked in day & night shifts and provided on-call and on-pager support for Production Support and Maintenance team in very high availability environment.
Experience
Worked as Sr. Systems Administrator in NTT DATA Hyderabad from Dec 2018 to Sep 2019
Worked as Sr. Systems Administrator in Infosys Pvt Ltd Hyderabad from Apr 2018 to SEP 2018
Worked as Sr. Systems Administrator in Network People Services Technologies Pvt Ltd Bangalore from Feb 2017 to till Aug
Worked as Sr. Systems Administrator in Mindtree Pvt Ltd Chennai from feb 2012 to Feb 2017.
Education
B.Tech in Jawaharlal nehru technological university in 2009
Skill set
Technical Skills:
Web/Application Servers: WebSphere Application Server 9.0,8.5.5,7.0/6.x IBM HTTP Server 6x,7x,8.5.5,9.0 Apache,Tomcat,IBM BPM,Jenkins,Weblogic
Programming Languages and Scripts: Java, C, C++,CSS,Java Script,JDBC,JSP,ASP,EJB,
Networking & Communication Protocols: TCP/IP, HTTP/HTTPS, SMTP, SOAP,Putty,
Database: Oracle 11g/10.x/9.0.2.5, Microsoft SQL Server 20003/2000 and MS Access 2000.
Operating Systems: IBM AIX 6.0/5.3/5.2/4.x, Suse Linux 10.x/9.x, Red Hat Linux 9/8/7.2/7.1, RHEL 4.x/3 and Windows XP/NT/2003/2000 NT/Server.
GUI Front End Tools: Java Server Pages, Swing, Visual Basic 5.0/6.0, and Developer 2000.
Monitoring Tools: Splunk,Tivoli Performance Viewer, Thread Analyzer, Log Analyzer, Heap-Analyzer, Wily Introscope 7.1/6.0.
Project Details
Project1:-
NTT Data /Hanover
DEC 2018 – Till Date
System Administrator
Responsibilities:
Implemented creation of Server groups and clusters in WebSphere Application server and cloning of servers (vertical and horizontal).
Created user roles and groups for securing the resources using LDAP and local operating system authentication.
Created and configured resources for JDBC, J2C, and JMS based on the application requirements and configured Message Listener Ports for an application, which uses MDBs to trigger the queues.
Installed and configured multiple IBM HTTP Servers to participate in clustering using CSS, with remote WAS plug-in.
Configured the Web Server interfaces, session management, nodes, data sources, virtual hosts and transports for WAS.
Configured horizontal scalability of WebSphere through the “Cloning of multiple JVMs” mechanism with independent Java Virtual Machines (JVM), for each clone.
Implemented connectivity to the Oracle 9.x/8.x and DB2/UDB databases using Data source, and MDBs and fine tuned the performance of high transaction enterprise applications using connection pooling resources.
Profiled all the J2EE Applications and worked with Application Groups in improving performance of applications and possible memory leaks in applications before deploying in Production.
Involved in Creating and Managing Nodes, Clusters and Application Servers.
Implemented security using Global Security with LDAP Authentication
Involved in trouble shooting and Performance tuning using Tivoli performance viewer and Thread analyzer.
Active involvement in monitoring server performance, network traffic to reduce performance bottleneck
Responsible for installing timely updates and fix patches for WebSphere Application Server.
Project Details
Project1:-
Infosys /Westpac Banking
Apr 2018 – OCT 2018
System Administrator
Responsibilities:
Implemented creation of Server groups and clusters in WebSphere Application server and cloning of servers (vertical and horizontal).
Created user roles and groups for securing the resources using LDAP and local operating system authentication.
Created and configured resources for JDBC, J2C, and JMS based on the application requirements and configured Message Listener Ports for an application, which uses MDBs to trigger the queues.
Installed and configured multiple IBM HTTP Servers to participate in clustering using CSS, with remote WAS plug-in.
Configured the Web Server interfaces, session management, nodes, data sources, virtual hosts and transports for WAS.
Configured horizontal scalability of WebSphere through the “Cloning of multiple JVMs” mechanism with independent Java Virtual Machines (JVM), for each clone.
Implemented connectivity to the Oracle 9.x/8.x and DB2/UDB databases using Data source, and MDBs and fine tuned the performance of high transaction enterprise applications using connection pooling resources.
Profiled all the J2EE Applications and worked with Application Groups in improving performance of applications and possible memory leaks in applications before deploying in Production.
Involved in Creating and Managing Nodes, Clusters and Application Servers.
Implemented security using Global Security with LDAP Authentication
Involved in trouble shooting and Performance tuning using Tivoli performance viewer and Thread analyzer.
Active involvement in monitoring server performance, network traffic to reduce performance bottleneck
Responsible for installing timely updates and fix patches for WebSphere Application Server.
Applying software maintenance, program patches and keeping the system software releases current. Effectively interacted with the users on a daily basis, decreasing downtime and increasing user productivity.
Troubleshoot hardware and software problems, and interact with IT staff or vendors in performing complex testing, support and troubleshooting functions.
On call 24x7 supports for IHS, Web sphere Production Servers.
Environment: WASND, IBM WebSphere Application Server 5.0/5.1/6.0,7.0,8.5.5,9.0 IBM, IBM HTTP Server 6.0,6.1,7.0,8.5.5,9.0 DB2 UDB, Oracle, AIX,Linux,Java, JSP, EJB.
Project 2:- Canara Bank /NPST
Feb 2017 – Aug2017
Responsibilities:
Installed, configured, administered, troubleshot, tuned WAS ND, Base, on Linux and windows for multiple high profile projects
Deployed application ears on WebSphere Application Server Network Deployment in different Staging and Production environments on a daily basis and troubleshot various configuration and application issues
Performed WebSphere Configuration backup and restoration using scripts
Configured WebSphere 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
Installed, configured and administered WebSphere and designed a complete and effective Environment including naming standards, levels of service, security, monitoring and administration tools
Troubleshooted and successfully resolved LDAP, SiteMinder, WAS, data issues
Troubleshooted problem-tickets, worked with developers to identify the root cause and resolve the issue or propose a potential work around
Mentored development and support teams on operation and problem determination
Configured enterprise applications and corrected performance problems by monitoring server availability and resource utilization analysis
Managed multiple high profile, complex projects and implemented with minimal disruption to end-users
24x7 on-site operations support in an environment with over 200 Servers
Environment:
IBM WebSphere Application Server 5.0/6.0, IBM WebSphere Application Server 6.0,Oracle 10g, Solaris SunOS 5.8, IBM Http Server 6.0, 6.1,7.0.
Cendent,US /Mind tree Ltd
Feb 2012 – Feb 2017
MQ Series/WAS Administrator
Responsibilities:
Installed, configured, administered, troubleshot, tuned WAS ND, Base, on Linux and windows for multiple high profile projects
Deployed application ears on WebSphere Application Server Network Deployment in different Staging and Production environments on a daily basis and troubleshot various configuration and application issues
Performed WebSphere Configuration backup and restoration using scripts
Configured WebSphere 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
Managed multiple high profile, complex projects and implemented with minimal disruption to end-users
24x7 on-site operations support in an environment with over 200 Servers
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