Server Management

TEJA G.

Ph: 623-***-****

E-mail: ********@*****.***

[pic]Certifications:

IBM Certified System Administrator Web sphere Application Server ND V7.0 .

Summary:

. Over 7 years of extensive experience in installation, configuration,

deployment and management of enterprise applications using WebSphere

Application Server 5.0/5.1/6.0/6.1/7.0/8.5 and its front-end servers

like IBM HTTP Server 1.3/2.0/6.0/6.1/7.0/8.5, Apache Web Server

2.0/2.2, on AIX, Solaris, Linux, and Windows.

. Expertise in Middleware Administration adept in all facets of

administration, maintenance, deployment, management and migration of

IBM WebSphere products (Application Server and MQ Series) including

Installation and Configuration.

. Involved in on-call and Production Support activities and managed

hundreds of Web & App Servers hosting Enterprise level J2EE

applications on Sun Solaris, AIX, Linux and Windows environments.

. Expertise in developing JACL, Jython, Perl and UNIX shell scripts for

the automation of WebSphere

Administrative tasks like Application code deployments and Resource

configurations, stop/start/status scripts setup, updating INIT Tab,

rc.shutdown OS level scripts for WAS / IHS auto-recovery from box

reboots and setting up CRON Jobs to perform timely backup, cleanup,

restore & log rotation activities.

. Proficient in installation, configuration and maintenance of WebSphere

Application Server (Base, Express and ND/XD), WebSphere MQ and IBM

Tivoli Directory Server, in a heterogeneous environment.

. Good knowledge in DNS, Firewall, DMZ, Load balancer concepts and SFTP,

SSH, ICMP, JMX, SMTP and SNMP protocols.

. Good understanding of WebServices, XML, SOAP, WSDL and UDDI

methodologies.

. Installation and configuration of WebSphere plug-in for IBM HTTP

Server, IIS and Apache WebServer and managing the plug-in files on

WebServers.

. Automated FixPack/Apar/iFix installations and involved in middleware

product upgrades/migrations.

. Worked closely with various vendors like IBM, Oracle, Sun and CA on

problem determination, and resolution.

. Expertise in working closely with Stress/QA team to identify

performance bottlenecks using LoadRunner, HP Diagnostics, ITCAM, Wily

Introscope, and Tivoli Performance Viewer.

. Experience in using Change/Incident Management tools such as HP

Service Center/Service Manager/ Quality Center, IBM Maximo, BMC

Remedy, TSRM, HP Sitescope Alarm Point, Peregrine and JIRA.

. Worked on various JDBC providers like DB2, Oracle, MS SQL Server,

Sybase and Teradata.

. Good experience with DR (Disaster Recovery) activities to recover

production data from Data Centers.

. Successful implementations of Workload Management (WLM) using cloning

and clustering techniques including Horizontal and Vertical Clustering

for Fail-over and High availability.

. 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.

. Experience in setting up of Nodes, Data Sources, Virtual Hosts,

configuring Servlet Engines, Session Managers including planning,

installation and configuration of WebSphere Application Server Trace

Service.

. Well versed in creating resources, modifying properties, view runtime

attributes, commit modifications and securing administrative server

using Authentication, Authorization, Certificates, Credentials,

Permissions, WebSphere Resources (Servlets, JSP files, HTML files).

. Experience in J2EE (JSP, Servlets, EJB, JNDI, JMS), Java2.0, JDBC,

Java Beans, RMI, CORBA, JavaScript, XML, HTML, SQL.

. Experience with various procedures and policies required for

escalation and outage resolution with Strong documentation skills.

Education:

Bachelor's Degree in Computer Science from JNTU University, Kakinada.

Technical Skills:

Programming Languages and Java, Unix Shell scripting, Jacl/Jython/ANT

scripting Scripting, Java Script, PL/SQL, LDAP, XML, XML config,

JMS, EJB, JSP, ASP, Servlets, JDBC, EJB, Struts, RMI,

JNDI.

Networking & TCP/IP, HTTP/HTTPS, RMI/IIOP, Putty, Humming Birdv7.1.

Communication Protocols

Databases MS Access, Sybase, MS SQL Server 2000, DB2, Oracle

8.x/9.0/10g/11g, Teradata

Application, MQ & IBM WebSphere Application Server 5.x/6.x/7.x/8.x, IBM

Directory Servers MQ5.3/6.0/7.5, Oracle WebLogic Application Server

10.3.3/10.3.5, IBM TDS 5.0/6.0, CA e-trust Siteminder

Web Servers IBM HTTP Server 1.3/2.x/6.0/7.0/8.x, Apache 2.0/2.2,

Sunone IPlanet Web server 6.0/7.1, IIS5.0/6.0,

Operating Systems IBM-AIX 4.2/4.3/5.3/6.1/7.1, RHEL 5.x/6.x, Linux z,

Sun Solaris 8/9/10, Windows 2k,03,NT

Development/Build/Perform JCreator, JDeveloper, WSAD, RAD, HP Diagnostics,

ance Tools ITCAM, Wily Introscope, Heap Analyzer, Thread

Analyzer, GC Analyzer.

Professional Experience:

Citi bank, Irving, TX

Nov'13

to Till Date

Sr. Web Middleware Engineer

Responsibilities:

. Installation, Configuration and Administration of IBM WebSphere

Application Server 7.0/8.5, IBM HTTP Server 7.0/8.5 and Apache Web

Servers 2.0/2.1 on Linux, AIX and Windows 2003/2007 servers.

. Created Clusters and Cluster Members in WebSphere for load balancing

and failover.

. Creating JDBC Providers, Data sources and JAAS authentication aliases

in order to provide connectivity to backend Oracle and DB2 databases

and defined JMS Providers, Queue Connection Factories, Queues,

Listeners, Activation Specifications for providing MQ connectivity.

. Enable the Global Security in WAS Admin console for users & groups

using IBM Tivoli Directory Server as LDAP user registry for

Authentication.

. Responsible for applying Refresh packs, fix packs and Interim packs to

WebSphere Application Servers, IBM HTTP Servers, and Apache Web

servers.

. Installed enterprise applications on Oracle WebLogic Application

Server v10.3.3/10.3.5 and configured JMS & JDBC resources.

. Experienced in Installing, Configuring and Administering Siteminder

WebAgent on IHS Servers, Siteminder Optionpacks on WebSphere

Application Servers to protect the applications with user

authentication & authorization and Single Sign-On (SSO).

. Configured and setup Secure Sockets Layers (SSL) for data encryption

and client authentication. Used WebSphere Application Server key

management utility (IKEYMAN), for managing keys and certificates.

. Secured enterprise applications and provided access to Users & Groups

based on their roles & requirements by setting up User/Group accounts

on IBM Tivoli Directory LDAP Server.

. Automation of deployments and property files using Serena Dimensions

tool

. Investigated process slowness, bottlenecks in the environment and

improved system performance & response time by tuning JVM Heap Size,

Connection pool and Thread pool settings.

. Monitored the performance of WebSphere Application server using Tivoli

Performance Viewer & HP Diagnostics tool and ITCAM by enabling PMI

Module in WAS Admin console.

. Analyze Java Core dumps and Heap dumps using ISA Workbench.

. Troubleshooting on issues such as out of memory, memory leaks, hung

sessions and session replication.

. Document the Sev1 and Sev2 tickets as part of Prod Support and place

them in eroom repository.

. Working with Unix Shell Scripts and Jython scripts for automation of

Application deployments, Log Rotation, Scheduling Cron Jobs and

configurations at enterprise level.

. Experienced in migrating WAS / IHS V6.x/7.x instances to 8.5.x.

. Deploying Several Application codes (.EAR files) to

DEV/SIT/STP/Training/UAT/Performance and Prod Environments on a daily

basis and providing 24/7 on-call production support.

. Work with IBM Product House on problem determination, and resolution

for the issues related to Applications.

Environment: IBM WebSphere Application Server ND v6.x/7.x/8.5, IBM HTTP

Server v6.x7.x/8.5, Apache Web Server 2.0/2.2, Oracle WebLogic

Application Server v10.3.3/10.3.5, AIX 5.3/6.1, RHEL 5.7, ITDS LDAP,

Siteminder, Oracle11g, ISA Workbench, HPSM Ticketing tool, HP

Diagnostics, ITCAM, HP Sitescope, Serena Dimensions, Remedy Change

Management Tool, JDK1.6, UNIX Shell scripting.

APL, Scottsdale, AZ

May'12

to Nov'13

Sr. WebSphere Admin / MQ Administrator

Responsibilities:

. Installation, configuration and Administration of IBM WebSphere

Application server 6.1/7.0/8.0, IBM HTTP Server V6.x/7.0/8.0 and

Apache Web Server on Linux, Aix and Sun one Solaris Servers.

. Created Clusters and Cluster Members in WAS for load balancing and

failover.

. Configured WebSphere MQ JMS Provider to provide J2EE connection

factories for making connections to JMS queue/topic destination.

. Experience in installation, configuration and administration of IBM

WebSphere MQSeries 6.0/7.5 on various platforms like Linux, AIX, and

Windows NT/2000.

. Created and configured Queue Mangers, Local Queue, Remote Queue,

Transmit Queue, Alias Queue, Dead Letter Queue, Initiation Queue,

Cluster Queue and SDR/ RCVR Channels.

. Configured WebSphere MQ API queue Connection factories, MQ queue

destinations, message listeners, Queues (point to point) and Topics

(publish & Subscribe) for the JVM's.

. Integrated WebSphere Application servers with MQ Series servers for

message queuing.

. Migrated existing applications in WebSphere Application Server 6.x to

7.x/8.x using WAS PreUpgrade and WAS PostUpgrade tools.

. Provides support for the entire Software Development Life cycle (SDLC)

of application testing including building applications, deploying, and

troubleshooting.

. Developed UNIX shell scripts for automating WebSphere application

deployments and configurations at enterprise level.

. Responsible to run IBM Security Health checks to WAS/IBM HTTP

Server/Apache Instances on a Quarterly basis to meet the security

standards.

. Automated Fix packs, daily deployments and JVM configurations using

AST Tool.

. Involved in Installation and configuration of Wily PMI setting, Wily

Power packs on Webserver instances for various applications in

QA/Prod.

. Installed and configured remote WebSphere plug-in for IBM HTTP Server.

Manually updated plug-in files for IHS servers located in DMZ.

. Performed Application data backup and recovery by Local

backup/restoration of the WebSphere Environment configurations and

applications.

. Worked with Unix Shell Scripts for Automation of Log Rotation,

Scheduling Cron Jobs and configurations at enterprise Level.

. Implemented WebSphere Global Security using LTPA and IBM Tivoli

Directory and Sunone Directory LDAP Servers.

. Good understanding of Cisco CSSi network load balancer concepts, DNS

Round Robin mechanism, DNS Lookup, DMZ and Cross company Firewall

methodologies.

. Created HTTPS Certificates for global security using Ikeyman.

. Involved in troubleshooting and performance tuning using Wily

Collector Tool and Log Analyzer.

. Analyzed Java Core dumps and Heap dumps using Heap analyzer during

Application Crash.

. Involved in all environmental fixes, such as Fix packs, Cumulative

fixes APARs.

. Deployed Several Application codes (.EAR files and .War files) to

QA/Prod Environments as daily basis and provided 24/7 on-call

production support.

. Integrated IBM System integration bus (SIB) to enable connectivity

through for multiple applications and WebServices, removing the need

of complex point to point connectivity.

. Created JDBC Providers, Data sources at cluster level and JAAS

authentication aliases in order to provide connectivity to SQL and DB2

databases.

. Worked with IBM Product House on problem determination, and resolution

for the issues related to Applications.

. Performed root-cause analysis for Productions outages and provided

management with root-cause analysis report.

Environment: IBM WebSphere Application Server ND V6.x/7.x/8.0, WebSphere

MQ 6.x/7.5.x, Oracle10g, DB2, IBM HTTP Server V6.x/7.0/8.0, Apache HTTP

Server 2.2, AIX 5.3/6.1/7.1, RHEL 6.3, zLinux, Solaris 9/10, CA Willy

Introscope v8.0, LDAP, JDK1.6, AST, HP Service Manager Change Management

tool, IBM Maximo Ticketing Tool, BMC Remedy Change Management Tool,

Manage Now, TSRM, GNM Alarm point, Nagios, XML, UNIX Shell scripting.

Walmart, Bentonville, AR

Jan'11 to April'12

WebSphere Administrator

Responsibilities:

. Installed, configured and maintained IBM WebSphere Application server

6.0/6.1/7.0 ND/XD, IBM HTTP Server 6.x/7.x and Apache Web Server 2.0

Linux, Solaris and Windows Servers.

. Implemented clusters in WAS for load balancing and failover and added

cluster members

. Installed and configured Sun One LDAP server and secured the

application server using both LDAP server and Local OS authentication

. Involved in configuring SSL b/w Web Browser, Web Server & Application

server and Worked with Key stores and Trust stores if any of the

certificates are expired.

. Involved in Configuring Single Sign On (SSO) with SiteMinder for

WebSphere Application Server.

. Developed Jython, JACL, Perl and UNIX shell scripts for automating

WebSphere application deployments and configurations at enterprise

level.

. Involved in SSO implementations using CA SiteMinder and Sun ONE LDAP

Server.

. Managed the Security and Performance optimizations for EJB containers

and web applications in WAS & IBM HTTP Server and Apache Web Server &

Tomcat Server

. Troubleshooting on issues such as out of memory, memory leaks, hung

sessions and session replications

. Monitored for Application core dumps, or forced thread dumps to check

for system objects using thread analyzer.

. Worked with Wily Introscope dashboards for tuning the JVM performance

metrics.

. Monitored the health of the JVM by taking Thread Dumps and analyzing

the Stack trace which helped in performing Root Cause Analysis to find

out the cause of the problem.

. Global security configuration for WebSphere Application Server and

using Sun ONE Directory Server as LDAP user registry.

. Installed Fixpacks, eFixes, and cumulative fixes to the existing

infrastructure and new environment

. Deploying and migrating the application from DEV to TEST to QA to PROD

and providing 24/7 on-call production support.

. Used SCM tools like clear case, PVCS and bug tracking tools like clear

quest.

. Created JDBC Providers, Datasources, and JAAS authentication aliases

in order to provide connectivity to Oracle, DB2 (mainframe and UDB),

AS400 databases.

. Configured resources such as Queue Definitions, Queue Connections

Factories, and Listeners in order to provide connectivity to

Enterprise MQ infrastructure.

. Involved in migrating applications from WAS V6.1 to

7.0.0.0/7.0.0.3/7.0.0.5.

. Package, build, Integrate and deploy enterprise J2EE applications on

WebSphere that involves EAR (Enterprise Archives) and WAR (Web

Archives).

. Ensure application dependencies are integrated on system level

components such as database, Data Source Name (DSN), and Application

Server connection pooling (DB2) including identification and

documentation.

. Responsible for application changes across different platforms-

development, testing and production.

. Working with IBM in opening a PMR for inconclusive root causes, and

coordinating the proposed changes with the respective teams.

. Ensuring consistent communication between WebSphere Clients, Edge

Components, Web Server, Application Server(s), and Database.

. Supported applications 24X7 on-call on a rotational basis.

Environment: IBM WebSphere Application Server ND V6.x/7.0.0.x, IBM HTTP

ServerV6.x/7.x ND/XD, Apache Web Server 2.0, Solaris Sparc v5.10/5.9, AIX

5.3/6.1, SiteMinder, Redhat Linux 8/9, Windows NT/2000/2003, Microsoft IIS

5.0/6.0, Oracle10g, DB2, JDK1.6, RAD v6.0, Peregrine Change management

tool, XML, JACL and Jython scripting.

FedEx, Memphis, TN

June' 09 to Dec' 10

WAS Administrator

Responsibilities:

. Installed, Configured and Administered WebSphere Application Server

6.0/6.1 ND on Sun-Solaris, AIX, Linux and Windows platform for all

Dev, QA, UAT & Production environments.

. Responsible for WAS and IBM Tivoli Directory server installations

across the Middleware group.

. Responsible for maintaining the webservers like IHS, Apache Web Server

including the Siteminder WebAgent setup, HTTP plug-in module

installation and configurations.

. Responsible for applying Refresh packs, fix packs and Interim packs to

WebSphere Application server, IHS and Apache web servers.

. Achieved Workload Management and Failover by Creating and Configuring

Clusters and Cluster members for Load Balancing and High availability.

. Automated Websphere deployments using wsadmin, JACL, and Jython

scripts

. Responsible for maintaining, troubleshooting SSO related issues and

the websphere specific issues in all the environments like DEV,QA,UAT

and PROD

. Designated as a WebSphere admin and provided 24/7 support for various

J2EE applications.

. Worked closely with Project manager, development, and testing and

production teams to align project deliverables, dates and report

issues/concerns.

. Provide investigation and correction of error conditions or

application discrepancies for supported applications on both Test and

Production systems

. Responsible for focused problem determination and resolution support

for all Middleware developed or utilized services or Technology across

the Enterprise. Responsible in resolving Severity 1 and 2 outages.

Investigate all aspects of the event until it is resolved or an

escalation is necessary.

. Configuring Websphere admin console, Deploying new applications (.ear

files) into different application servers, and creating new

application servers, and configure virtual hosts and nodeagents and

nodes, cell.

. Configuring and enabling Global Security for the WebSphere Admin

Console, and manage WebSphere variables, and tuning the performance.

. Deployed java applications on Apache-Tomcat 6.x in the cluster

environment.

. Responsible for checking the Wily Introscope messages from pagers, and

troubleshooting the problems.

. Monitored and analyze the performance data with Tivoli Performance

Analyzer.

. Install, configure and maintain Internet, Intranet Application and

Database Servers like WebSphere, HTTP Server, and DB2 on diverse UNIX

flavors that include Linux and Windows Platforms (NT/2000) in multi-

clustered high availability environments.

. Package, build, Integrate and deploy enterprise J2EE applications on

WebSphere 6.0/6.1 that involves EAR (Enterprise Archives) and WAR (Web

Archives).

. Involved in troubleshooting and performance tuning using Resource

Analyzer and Log Analyzer.

Environment: IBM WAS 6.0/6.1 ND, IBM HTTP Server 6.0/6.1, Apache Web

Server 2.0, Apache-Tomcat 6.x, Solaris 9/10, UNIX, Linux, AIX 5.2/5.3,

IIS5.0, Sunone WebServer V6.0, Windows 2003 advanced server, LDAP,

Siteminder, Rational Application Developer (RAD), Wily Introscope,

Oracle9.x, J2EE 1.3/1.4, JDBC2.0, UIDP V5, Servlets, EJB1.1, XML1.0.

Focus Infotech, Bangalore

Sep'07 to

May'09

WebSphere / Application Support

Responsibilities:

. Installed and configured IBM WebSphere Application Server 5.0/5.1, IBM

HTTP Server1.3/2.0 and Apache Web Server 2.0 on AIX and SUN Solaris.

. Involved in designing WebSphere Application Server load balancing and

fail over by using Workload Management (WLM), horizontal and vertical

scaling.

. Responsible for Web server and Application server installation,

support and performance monitoring for all applications running on the

company's Website.

. Involved in installation, configuration, migration, and clustering and

user management on AIX/Solaris.

. Played an active involvement in monitoring server performance, network

traffic to reduce performance bottleneck by enhanced performance

ensuring upstream queuing.

. Enabled Tracing on different components for problem determination.

. Application support in testing with different testing tools (Load

Runner, Rational Quantify) for identifying issues, tracking bugs and

solving the problems.

. Applied software maintenance, program fixes and keeping the system

software releases current.

. Configured WebSphere resources including JDBC providers, JDBC data

sources, connection pooling, and JavaMail sessions. Deployed Session

and Entity EJBs in WebSphere.

. Configured SSL between Web Server plug-in and Web Container using Self-

signed Client-side Certificate.

. Good Knowledge of Edge Components Failover (Active/Standby), HTTP

Server Failover (Active/Active), Web Container Failover, EJB Container

failover, Session Affinity and Session Persistence.

. Assembled and Deployed the application in staging, in productions,

following change management practices and 24/7 support, worked in

shifts.

. Configured the Web Server interfaces, session management, virtual

hosts and transports for WebSphere Application Servers.

Environment: Web Sphere Application Server5.0/5.1, IBM HTTP Server1.3/2.0

and Apache Web Server 2.0, J2EE1.2/1.3, JSP1.1/1.2, EJB2.0, JNDI, JDBC2.0,

Java Mail, HTML, Java Scripts, Eclipse, Solaris, DB2UDB8.1, Oracle 8, XML,

ANT, Shell, Visual Age for Java, Rational Rose 2000.

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