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.