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Systems Administrator Resume

Plano, TX

Objective:

Seeking a position as a Web Infrastructure Administrator in an IT firm, that would best utilize my expertise in server and systems Administration.

Summary:

  • 7 years of experience in Administration of WebLogic Server V8.1/V9.2/V10, IBM WebSphere Application Server V5.x/6.x/7 , SunOne Webserver v6.0 and IBM Http Server, Apache WebServer V2.0.55, IIS WebServer V6 on Sun Solaris (Unix), Red Hat Linux and Windows platforms.
  • Expertise in Installation, Configuration, and Maintenance of BEA WebLogic Server 7.0/8.1/9.x/10.x on different UNIX platforms andsetting up theDevelopment, Testing, Staging and Production environments.
  • Experience in maintaining IBM Websphere Network Deployment V5.1/V6.1/V7 on Sun Solaris and knowledge in Websphere MQ.
  • Experience in configuring and publishing projects on OBPM 10gR3 and ALBPM 5.7.3.
  • Understanding of 3 Tier Architecture with strong problem determination and resolution skills.
  • Built multiple domains at a time using OPSWARE Internal Tool.
  • Involved in Migration of DataCenter Servers for installing and configuring Covalent/Apache and Sun ONE Web Servers.
  • Deploying J2EE Application archives (JAR, WAR, EAR and RAR) on both WebLogic and WebSphere.
  • Supported applications developed in Java, JSP, J2EE, Coldfusion, Javascript, Oracle, Spring, Webservices using struts framework.
  • Configured and administered JDBC connection pools.
  • Varied experience in Clustering (both horizontal and vertical), Workload management, creation and maintenance of Domains, Nodes and Managed Servers instances in a BEA Weblogic environment.
  • Installed and configured SunOne and Apache Web Servers in various environments.
  • Deployed applications on multiple Weblogic Servers and maintained Load balancing, High Availability and Fail over functionality.
  • Solaris 8,9 and 10 Solstice DiskSuite, Backup, OS Patch and Package installation, Performance/System Monitoring, SUN Clusters, Fault Analysis, User Access rsh, ssh, User account management, File system management, Disaster Recovery, NFS server and client management.
  • Solaris Kernel tuning & optimization for Oracle Database.
  • Co-ordinating with network team to configure Load Balancer for request distribution to apache web layer.
  • Excellent knowledge of writing UNIX Shell Scripts and ANT scripts to automate System Admin jobs.
  • Proficient in (Korn & Bourne) Shell scripting and performance tuning of UNIX systems.
  • Created cron jobs for timely running of jobs.
  • Experienced in applying patches and plug-ins for Weblogic Application Server.
  • Extensive experience in configuring and managing secured environments using SSL and digital certificates.
  • Configured WebServer Plug-ins for both WebLogic and WebSphere and implemented SSO across different domains using CA Siteminder.
  • Experienced in writing WLST Scripts to automate admin tasks.
  • Well versed with Windows (2000, 2003, Xp), UNIX (HP-UNIX, AIX), Linux (Redhat) and Solaris.
  • Excellent knowledge and experience in OOPS, C/C++, Java, J2EE, PHP.
  • Monitored WebLogic server resources using Wily Introscope and HP SiteScope/BAC.
  • Experienced in Backup & Recovery procedures.
  • Excellent communication, presentation, customer support and troubleshooting skills.

Technical Expertise:

  • Operating Systems : Solaris, Red Hat LINUX, HP-UX, IBM-AIX, Windows98/2000/NT/XP.
  • Programming Languages : C, C++, JAVA/J2EE, Visual Basic, SQL, PL-SQL
  • Application Server : BEA WebLogic 6.1 (sp3, sp6), 7 (sp4 - sp6), 8.1 (sp2 - sp6), 9.2MP2 & 10.0/10.3, WebSphere V5.1/V6.1/V7, Apache Tomcat 6.x, JBOSS 4.x/5, OBPM 10gR3, ALBPM 5.7.3.
  • Web Server : Apache 2.x, Sun ONE 6.x, IBM-HTTP Server.
  • J2EE Technologies : Servlets, JSP, JDBC, RMI, JMS, JTA, JNDI, JMX, EJB, Applets and swing components, AWT.
  • Web Technologies : JDK 1.4, HTML, XML, DHTML, MSXML, ASPX.
  • Scripting Languages : WLST, UNIX Shell Scripting (Bourne, Korn, C and Bash), Perl Scripting.
  • Monitoring Tools : Wily Introscope, JMeter, Mercury LoadRunner, Grinder, Samurai, HP SiteScope.
  • Database : Oracle 8i/9i/10g, MS SQL Server 7.x/2000, Sybase, Pointbase, My SQL, MS Access and DB2.
  • Networking & Protocols: TCP/IP, Telnet, HTTP, HTTPS, FTP, SNMP, LDAP, DNS.

Professional Experience:

Client: Confidential Cable Oct' 11 - Till Date
Role: Sr. Middleware Administrator

Responsibilities:

  • Extensively worked on administration of BEA WebLogic 10.0 MP1/10.3.x Application Server and IBM WebSphere Application Server V7.
  • Installed and configured multiple domains using OPSWARE internal tool.
  • Installed, configured and administered and integrated Apache Web Server to work with the Application Server.
  • Supported migration of applications from Oracle 9.2.2 to Weblogic 10.3.5.
  • Working with infrastructure team to deliver environments for each project release on time.
  • Performed multiple deployments during upgrade of WebLogic Server from 8.1 to 10.3 in Web Center Environment.
  • Deployed J2EE archives WAR's, EAR's, TAR's on weblogic server.
  • Troubleshooting the issues occurred during the deployment of J2EE applications and EJB components.
  • Performed multiple deployments during upgrade of WebLogic Server from 8.1 to 10.3 in Web Center Environment
  • Configured and worked on AquaLogic BPM 5.7.3 publishing projects.
  • Configured and Worked on Oracle BPM 10GR3 publishing projects.
  • Troubleshooting and resolving issues in both BPM's.
  • Configured Web Server plug-ins for Application Servers.
  • Work on Web Security tools- LDAP Server, SSL Certificates and client authentication.
  • JMS Configurations- JMS Server, Connection Factory, Foreign JMS server, Message Bridge, Topic/Queue, Distributed destinations
  • Configured WILY and HP Sitescope for monitoring on all the Application wsdl's and instances on Production.
  • Monitoring the error logs, fixing the problems and tuning parameters on WebLogic environment.
  • Troubleshooting, Load Balancing, Clustering, Deploying Applications, Performance Tuning and Maintenance
  • Managed and monitored the JVM performance by WebLogic Heap Size, garbage collection, JDBC Pools and Multi pools
  • Monitored the JVM Performance using Jconsole and BMC Patrol.
  • Involved in creating SSL certs and renewing certificates.
  • Managing and Monitoring the JVM Performance by adjusting WebLogic heap size and garbage collection parameters.
  • Analyzing the Log Files, Thread Dumps, JVM Dumps, Exception Stack Traces.
  • Automation of domain creation using WLST, ANT, and Domain Templates.
  • Lead/Major Role of monthly production Releases.
  • Coordinated with many teams at a time during the production release.
  • 24X7 Production support.
  • Automated many administrator tasks by writing shell scripts, WLST.

Environment: WebLogic 8.1/9.2/10.3.x, ALBPM 5.7.3, OLBPM 10GR3, WebSphere 6.x/7, Apache 2.x, SunOne, IIS, Linux, Windows(2000,XP,7), EJB, J2EE applications, JDBC, XML, UNIX shell Scripting, Wily Introscope, HP SiteScope, BMC Patrol, WLST

Client: Confidential, Plano, TX Feb' 09 - Oct' 11
Role: Middleware/ Systems Administrator

Responsibilities:

  • Extensively worked on administration of BEA WebLogic 10.0 MP1 Application Server and IBM WebSphere Application Server V6.
  • Installed, configured and administered BEA Weblogic server 8.x/10.x.
  • Installed, configured and administered and integrated Apache Web Server to work with the Application Server.
  • Support in migration of applications from Oracle 8.1 SP2/5 to Weblogic 10.3.
  • Working with infrastructure team to deliver environments for each project release on time.
  • Performed multiple deployments during upgrade of WebLogic Server from 8.1 to 10.3 in Web Center Environment.
  • Configured WebLogic Server resources using WLST for all web applications in the upgraded environment.
  • Created managed servers and configured Clusters for these managed servers.
  • Very strong understanding of apache mod_rewrite rules for redirecting the URL's in many web based applications.
  • Configuring NSAPI Plug-in and ISAPI Plug-in to communicate with the WebLogic server.
  • Worked closely with network team and SSO - Single Sign On team while shaking down the upgraded Test and Production environments.
  • Installing patches to different versions of WebLogic using SmartUpdate tool.
  • Upgrading the versions of WebSphere using the UpdateInstaller.
  • Configured and administered WebLogic services like JMS, JNDI, JMX and JDBC.
  • Involved in cluster environment creation and deploying various J2EE applications on the managed servers and implemented Load Balancing, High Availability and Failover features.
  • Involved in Load testing of the application running on Weblogic server using various tools.
  • Thread and Heap analysis using thread dump tools like IBM Heap Analyser, samurai and TDA and finding the blocking and locked threads.
  • Involved in creating SSL certs and renewing certificates.
  • Troubleshooting and fixing of problems on WebLogic Application Server.
  • Configuration of JDBC connections and data sources with Oracle database server 10.x.
  • Monitoring the error logs, fixing the problems and tuning parameters on WebLogic environment.
  • Monitored the JVM Performance using Jconsole and BMC Patrol.
  • Written Unix Shell Scripts and scripts for the Auto Deployment process of applications.
  • Maintaining code and configuration file in version management tool like ClearCase.
  • Created Users, Groups and Roles and assigned users to Groups and Roles.
  • Involved in configuring management, software deployment, change management, performance monitoring, and application maintenance.
  • Created detailed Visio diagrams for all upgraded environments
  • Documenting the technotes and design procedures and test plans for the support of the applications in the Environment.
  • Worked with several vendors (Oracle, IBM, and Apache) for some advanced troubleshooting.
  • Assisted QA team and performed QA analysis.

Environment: WebLogic 8.1/9.2/10.3, WebSphere 6.x/7, Apache 2.x, SunOne, IIS, Linux, Windows(2000,XP), EJB, J2EE applications, JDBC, XML, UNIX shell Scripting, Perl Scripting, Wily Introscope, BMC Patrol, WLST.

Client: Confidential, Costa Mesa, CA Dec' 06 -Feb' 09
Role: Sr. WebLogic Administrator/Application support

Responsibilities:

  • Involved in the project for the Migration of the DataCenter.
  • Migrated the physical servers hosting the WebLogic and WebSphere.
  • Deployed multiple IP remediated applications as a part of the migration and tested the new applications successfully.
  • Registering the servers from the new DataCenter to the new Policy Server for Authentication of the applications.
  • Configured Node manager for administration of Managed servers.
  • Decommed the servers that are not in use by uninstalling the software from it.
  • Worked with different teams (Platform, Network, Storage) as a part of the Migration.
  • Upgraded jdk from 1.4 to 1.5 in QA and Production environment.
  • Configured and administered Weblogic JDBC connection pools and Data Sources with Oracle 9i database.
  • Configuration and maintenance of J2EE Services including JDBC, JMS on WebLogic server 8.1, 9.2.
  • Deployed various WAR, EAR, JAR applications in Domain and Clustered environments.
  • Configured and installed SunOne WebServer and Apache Webserver.
  • Used Apache webserver proxy plug-in for Weblogic.
  • Integrating WebLogic Environments with iPlanet Webserver for reverse proxy. Static content deployment and troubleshooting through Webserver.
  • Installing and managing vendor relationship with Verisign for SSL certificate management.
  • Experienced in building environments from scratch starting from getting a plain UNIX machine to installing and configuring infrastructure tools to J2EE application rollout in production.
  • Developed WLST/JYTHON, ANT scripts, UNIX shell scripts to automate the deployment process.
  • Worked on Awk and Sed to parse and format log files in efficient manner.
  • Managing and performing weekly deployment cycles. Troubleshooting deployment time and post deployment application issues.
  • Involved in planning and implementing high availability environments which included Weblogic server clusters, session replication, multi-pools, distributed destinations and hardware load balancing & failover.
  • Diagnosed and resolved memory leak issues with heap dump analysis (JMAP) and MAT tool.
  • Monitored Weblogic server resources and set up alerts using IP Monitor.
  • Managing Wily Introscope monitoring in non-production Weblogic instances.
  • Extensive Knowledge in software development with IBM Rational tools clear case and clear quest.
  • Resolved Trouble Tickets on daily basis.
  • Log files analysis for troubleshooting to resolve issues.
  • Using siteminder for user authentication and authorization.
  • Provided Production support (24/7) and coordinated with the users to resolve any critical issues.
  • Prepared documentation and transferred technical Knowledge to the respective groups.

Environment: WebLogic 9.2, Solaris 9/10, Linux, Windows(2000,XP), Apache 2.x, Oracle 9i/10g, IBM Rational tools, Clear case, Clear quest, MQ Series, WMQ, SSL, UNIX shell Scripting, NDM, AWK, WLST, protocols TCP/IP, DMZ, HTTP, HTTPS, SNMP, FTP.

Client: Confidential, India Aug' 05 - Nov' 06
WebLogic Administrator

Responsibilities:

  • Installed and configured Apache web server 1.3.35 in all the environments.
  • Deploy WAR, JAR, and EAR applications in Weblogic 7.0.
  • Configure and administer JDBC, JMS, JNDI, and SNMP in Weblogic Server 7.0.
  • Installed, configured, administered BEA Weblogic Server 7.0 in various environments.
  • Deployed the applications on multiple Weblogic Servers and maintained Load balancing, High Availability and Fail over functionality.
  • Configured Clustering of EJB objects, JDBC connections and JMS connection factories.
  • Setting up the cluster environment for WebLogic Server integrated with multiple workflows.
  • Configure Node manager to administer the Managed Servers.
  • Involved in doing a performance benchmark of weblogic server by using Loadrunner.
  • Used config wizard and config builder extensively to create and manage Weblogic domains.
  • Configured and deployed applications in various work environments like Development mode, Production mode and RTB (Release Test Bed).
  • Researched and Troubleshooted emerging application issues, from WebLogic configuration to code issues.
  • Applying the patches to the Weblogic servers.

Education:
Bachelor's of Technology.

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