Weblogic/devops Engineer Resume
Miami, FL
SUMMARY
- Over 8 years of extensive experience as Weblogic/Websphere/JBoss/ATG/Tomcat/System Administrator in Major e - commerce, Financial, Transportation institutions, on design, development, implementation and maintenance of Enterprise Applications.
- Expertise in SUN Solaris, SunOne WebServer, Apache Web servers, Oracle 8/9/10g/11g, Veritas Suite, DNS, NFS, NIS and Application administration/Monitoring.
- Managed and administered domain, nodes, managed servers, instances in BEA WebLogic server.
- Configured Web Server plug-ins for application servers (WebLogic and WebSphere)
- Configured Clustered, load-balancing and fail-over solutions.
- Extensive experience in deployments and management of enterprise applications using WebSphere ApplicationServer5.x/6.x/7.x/8.xand WebSphere Portal Server5.x/6.x, WebSphere MQ 5.x/6.x/7.x/8.xon UNIX (Solaris/AIX), Linux and Windows NT/ 2000/2003/2008 environments.
- Experience in installing, configuring WebSphere Extended Deployment XD Version 5.x/6.x on AIX, Solaris and Linux.
- Knowledge in Web Server administration, which includes installation, configuration and troubleshooting of IBM HTTP Servers, Apache Server, Tomcat server.
- Expertise in Installing, Configuring and Trouble-Shooting Web Servers like iPlanet, IIS WebServer, Apache, Tomcat, Oracle database Server, SQL Server on Windows and different UNIX flavours.
- Expertise in ConfiguringJDBC Providers, Data Sources, JMS, Virtual Hosts, Global Security.
- Excellent working knowledge in implementing LDAP security models using Sun One LDAP and IBM Tivoli Directory Server.
- Extensive knowledge in Middleware Messaging technologies like WebSphere Message broker, Oracle Service Bus, IBM MQ, OAQ and JMS.
- Experience in trouble shooting failed mission critical production systems under extreme pressure conditions and time constraints.
- Extensive experience in optimizing the performance of WebSphere Application Server using Work Load Management (WLM) with cloning and clustering techniques including Horizontal and Vertical Scaling with Round-Robin method for failover and backup/recovery processes.
- Experienced in providing VeriSign Digital SSL certificates for all Java Enterprise Level Applications.
- Extensive experience in providing 24/7 on-call support for applications servers.
- Experienced in defining WebSphere resources such as JDBC providers, data sources, MQ Queue connection factories, Queue destinations and Message driven bean listeners.
- Well versed in writing shell scripts in Jacl, Jython scripts to automate the administrative tasks.
- Extensive understanding in all phases of software life cycle with emphasis in Designing, Developing, Implementation, Deployment and Support of distributed enterprise scalable, secure and transactional J2EE applications in both production and development environment.
- Proficient in deploying J2EE applications on WebSphere Application Server using deployment tools such as AAT and ANT.
- Experience with CI (Continuous Integration) and CD (Continuous Deployment) methodologies using Jenkins.
- Developed shell scripts and scheduled CRON jobs.
- Worked with JIRA for Issue Tracking and monitoring.
- Construction of dual nodes of puppet master to maintain continuous availability in the automated deployment procedure.
- Construction, testing and deployment of custom puppet modules to the entire environment across Linux platform. Redesigning and redeploying the Nagios implementation. Nodes automatically added/removed themselves via Puppet
- Automate server builds; release and cloud migration using CM tools like Puppet/Ansible. Developed Manifest/Modules for system application configuration management.
- Experience in working on version control systems like Subversion and GIT and used Source code management client tools like SVN, Stash, GITHUB and other command line applications etc.
- Expert in deploying the code through web application servers like Web Sphere/Web Logic/ Apache Tomcat/JBOSS.
- Experienced in administering and Maintaining JBoss 4.x/5.x/6.x/7.x, ORACLE/BEA WebLogic 9.x/10g/11g Server, Tomcat 4.x/5.x/6.x, Apache 2.x on different UNIX (Sun Solaris 9/10), Red Hat Linux 4/5 and Windows XP/ 2003/2008.
- Excellent working knowledge of Operation & Production Support with large mission critical systems in multiple technologies and platforms including Weblogic, SOA, Apache and UNIX.
- Experience in setting High Availability and clustering for SOA suite.
- Experience in deployment in SOA suite with Stage, No-stage, External stage modes.
- Created repositories using RCU (Repository Creation Utility).
- Provided 24x7 on call support in production environment on rotation basis.
- Excellent working knowledge in configuring multiple Weblogic domains including machines, manage servers and cluster environments.
- Deployed various WAR, JAR, EAR and J2EE applications on managed servers and in clustered environment using Console or auto deployment scripts in stage and production.
- Configured and administered JDBC Connection pools/Datasources, JMS Connection Factories and other JMS artifacts like JMS Servers, Distributed Queues.
- Expertise in migration and up gradation of Weblogic Server and updating JDK versions, applying patches and installing service packs for Weblogic server.
- Experienced in writing UNIX Shell Scripts and implementing auto deployment process.
- Excellent communication skills, strong architectural skills, hardworking and a good team player.
TECHNICAL SKILLS
Programming Languages: C, JAVA/J2EE, SQL/PLSQL,HTML, ANT
Operating Systems: Solaris 8/9/10, Red Hat LINUX, Novell Linux, Suse 10, AIX 5.0/6.1, Windows 98/2000/2003/ NT/XP/VISTA.
Middleware: Oracle-BEA WebLogic Application Server 8.x./9.x/10.x/11g/12c, SOA Suite 11g, JNDI, JDBC, OSB 11g,BPM, Jboss 6.4,GlassFish, Apache-HTTP Server 2.x, Sunone 6.0 Server Side Technologies, JSP, Servlets, AJAX.
J2EE Technologies: Servlets, JSP, JDBC, RMI, JMS, JTA, JNDI, JMX, EJB, Applets and swing components, AWT.
Web Technologies: JDK 1.4/1.5/1.6/1.7/1.8 HTML, XML, DHTML, MSXML, ASPX.
Scripting Languages: UNIX Shell Scripting (Bourne, Korn, C and Bash), Perl Scripting.
Packages: JSDK 2.0, J2EE, Clear case, Clear Quest.
Performance Monitoring and Testing Tools: Wily Introscope, Winrunner 8.2, Test Director, Nagios, Stage Monitor and InfraRED
IDE’s/Utilities: Eclipse, Putty
Database: Oracle 8i/9i/10g/11g, MS SQL Server 2008, TOAD,SQL NAVIGATOR,SQL PLUS, DB2.
Networking & Protocols: TCP/IP, Telnet, HTTP, HTTPS, FTP, SNMP, LDAP, DNS, DHCP, SSL
Other Tools: MS Office, TOAD.
PROFESSIONAL EXPERIENCE
Confidential, Miami, FL
WebLogic/DevOPs Engineer
Responsibilities:
- Involved in Installation, configuration and administration of Weblogic Server 11g/12c on Red Hat Linux 5.x/6.x/7.x and Windows environment.
- Deployed web and enterprise applications on JBossapplication server in a channel secure environment
- Worked as Administration, installation, configuration and tuning for Oracle SOA suite.
- Experience in setting High Availability and clustering for SOA suite.
- Responsible for Continuous Integration (CI) and Continuous Delivery (CD) process implementation using Jenkins along with Shell scripts to automate routine jobs.
- Installed Jenkins on a Linux machine and created a master and slave configuration to implement multiple parallel builds through a build farm. Carried deployments and builds on various environments and design the project workflows/pipelines using Jenkins as CI tool.
- Implemented ANT and Maven builds for creating Jars and Wars.
- Experience on Version Control System (VCS) like GIT-Hub and used GIT to manage source code developed by various developers.
- Installed, monitored and supported Web and Application Servers on windows and Linux environments.
- Involved in performance tuning of JVM by analyzing garbage collection matrix.
- Wrote scripts (start & stop) for web application server administration.
- Handled server hang, deadlocks application and database level locks by checking thread dumps and analyzing them to find the root cause of the issue.
- Built servers, DC migrations/consolidation, Decommission of servers, Storage migrations, Automation (CI/CD/CM) and App renewal, Security Hardening (server patching), BAU releases, DR testing, POC(proof-of-concept).
- Experience in deployment in SOA suite with Stage, No-stage, External stage modes.
- Utilized pack and unpack commands for creation of domains in Dev, QA, UAT, PP and Prod.
- Performed J2EE application deployment and administration including JAR, WAR, and EAR files.
- Configure and administered of JDBC, JMS in Weblogic Server 11g/12c
- Install and configured SSL certificates for Apache web server in various environments.
- Configured and administered Weblogic server with Oracle 12c database.
- Deployed the applications on multiple Weblogic Server and maintained Load balancing, high
- Availability and Fail over functionality.
- Installed, configured OSB 11g in a clustered high available environment.
- Configure and administered Connection pools for JDBC connections.
- Managed and deployed BPM applications.
- Created and Configured Data Sources for database connectivity and JMS resources.
- Used Config wizard and WLST scripts to create and manage Weblogic domains.
- Performance tuning of JVM heap size, garbage collections, java stack and Native thread & production performance.
- Application’s migration of Weblogic server from previous version to current versions.
- Researched and troubleshooting emerging application issues, from Weblogic configuration to code issues.
- Analyzing thread dump and heap dump for Weblogic application server.
- Experience with Oracle Weblogic, SQL, UNIX Shell scripting, CVS or other source control system and multi-threaded/multi-process application.
- Active involvement in monitoring the server performance, network traffic to reduce performance bottleneck.
- Deployed WARs, EARs using Weblogic Admin Console as well as running scripts.
- 24X7 on call production support, technical support, trouble shooting, problems related to oracle Weblogic Server.
Environment: Oracle BEA-Weblogic Server 11g,12c, Oracle SOA Suite 11g, Jboss 6.4 4.1OSB 11g, JDK1.7/1.8, J2EE, JSP, Servlets, EJB, LDAP, JDBC, XML, Apache,, UNIX (Solaris 8/9.0/10.0, LINUX 5 ), Oracle 12c, Win2K.
Confidential, Naples, FL
Weblogic/ SOA Administrator
Responsibilities:
- Installed Weblogic Application server 10.3/11g using graphic and silent mode and configured the Weblogic domain.
- Performed Weblogic server administration tasks like configuring Managed servers and setup cluster environment.
- Create, run and schedule jobs in Jenkins for continuous integration.
- Built servers, DC migrations/consolidation, Decommission of servers, Storage migrations, Automation (CI/CD/CM) and App renewal, Security Hardening (server patching), BAU releases, DR testing, POC(proof-of-concept).
- Installed, administered and managed Red HatLinux, SLES, Solaris, HP-UX and AIX servers.
- Experience in Monitoring CPU, memory, disk controllers, physical disk and RAID, file systems, network using the tools NAGIOS.
- JIRA installations, setup, configuration, customization and upgrade.
- Expert in setting up mailing technologies such as Microsoft Outlook and Send mail/postfix on Windows and Linux servers.
- Worked in a production environment supporting mission-critical applications.
- Installed SOA suite 11.1.1.5 and created Schemas using RCU.
- Develop automation to support the build and configure process, using Unix shell scripts, Java apps, Blade Logic, or other tools.
- Develop shell script and web-based tools for automation of middleware configuration; develop processes to audit existing middleware infrastructure for baseline compliance.
- Performed migration and up gradation tasks like upgrading Weblogic server 10.3 to Weblogic 11g and updating JDK’s and installing service packs and patches for Weblogic Server.
- Troubleshooting everyday problems and issues by interacting with developer and testing teams and provided 24x7 On Call Production support on rotation basis.
- Implemented two node clusters for SOA suite applications.
- Deployed composites through EM.
- Tuned SOA suite servers and configured OHS server.
- Deployed various J2EE and enterprise applications (WAR, JAR, RAR, EAR) on managed servers and cluster environment and maintained Load Balancing, High Availability and Failover.
- Installed and configured plug-ins for Apache HTTP server Web server to proxy the requests for Weblogic server.
- Configured and Built support middleware environments according to standards.
- Configured and administered JDBC data sources/multi data sources on Weblogic 11g
- Involved in monitoring error logs, troubleshooting and fixing the problems.
- Implemented security by configuring Secured Socket Layer (SSL) for client authentication and data encryption.
- Configured connectivity with SSL for App Servers and Web servers for applications in all environments.
- Developed and ran UNIX shell scripts and implemented auto deployment process.
- Troubleshooting with Thread and Heap analysis Using Samurai thread dump, TDA and Heap Analyzer for detecting blocking and locked threads.
- Experience in migrating from WebLogic 10.3.0 to 11g.
- Involved in assisting QA team in Load and Integration testing of J2EE applications on WebLogic Server.
- Consult with IT project management, product management, development, and engineering teams to discuss capacity planning and resource allocation.
Environment: Oracle BEA WebLogic 10.x/11g, SOA Suite 11g, JDK 1.5/1.6, Sun one 6.0/7.0, Apache 2.x, UNIX, Sun Solaris, Red Hat LINUX, Windows NT/2K/XP, Oracle 11g JDBC, LDAP, EJB, JSP, Servlets, XML,MS Office, OpenSSL, Secure SSH, Putty.
Confidential, Pleasanton, CA
Weblogic Engineer
Responsibilities:
- Installed, configured, integrated, tuned and administered JBoss AS 6.0/Tomcat 6.0 in various environments viz. DEV, QA, UAT, PRE-PROD and PROD.
- Installed and configured Weblogic Portal 12.1 in Dev, Test, PPE and Prod and provided support.
- Deployed Applications in Weblogic Portal and provided support.
- Installed and Configured Websphere 7.x/8.x in Dev, Test and Prod Environment and provided support.
- Deployed Applications on JBoss AS 6 and provided support.
- Worked closely with developers to define and configure application servers, virtual hosts, web applications, web resources, back-end resources as well as deployment of EJBs and web based applications like NODE JS
- Installed and configured Oracle SOA Suite 11g for the Sawgrass application and provided support.
- Used SOA-Direct Transport with Oracle SOA suite 11g.
- Configured and worked with Apache SSL modules in the process of installing SSL certificates on to the Web and Application servers.
- Deployed the latest enterprise Java application builds from build engineer on to Tomcat 6.0.
- Administered WebLogic 10.3/Tomcat 6.0 in various environments for one of the ecommerce applications.
- Managed and Monitored JVM Performance by adjusting WebLogic heap size and garbage collection parameters.
- Dealt with troubleshooting issues like Out of Memory, High CPU and Server Hang.
- Deployed ecommerce applications onto WebLogic server 10.3 using WLST.
- Configured and administered JDBC, JMS and SNMP in WebLogic Server 10.3.
- Installed and configured Tomcat application server with Apache HTTP Web Server in DEV, QA, UAT, PRE-PROD environments.
- Involved in load balancing, failover and clustering with multiple Tomcat instances.
- Involved in setting up cluster environment for WebLogic Server integrated with multiple workflows.
- Updated Shell scripts to monitor installed enterprise applications and to get information from the logs and database in the required format and other daily activities and jobs.
- Updated Perl scripts for the automation of startup and shutdown process.
- 24/7 on call production support with the development and Production teams.
- Worked closely with development, testing and production team to align project deliverables, dates and report issues/concerns and experience in operational 24x7 support
Environment: JDK1.6, J2EE, Sun JVM, Servlets, EJB, JDBC, MDB, XML, Oracle10g, WebLogic Server 10.3, Tomcat 6.0, Win2003, Solaris 10.0, RHEL 5, Apache2.2, eDNS, TCP, HTTP, SNMP., WebSphere Application Server V6.x/7.0/8.x, WebSphere Portal Servers 5.x/6.x/7.x, REST API, WebSphere Process Server 7.0, AIX, DB2 UDB 8.0, Oracle 11g, IBM HTTP Server, LDAP Server, Heap Analyzer, Tivoli Performance Viewer, JProbe, and Global Security.
Confidential
Weblogic Engineer/ Unix System Administrator
Responsibilities:
- Installed, configured, administered WebSphere Application Server ND on UNIX and AIX for multiple high profile projects.
- Administered, configured, tuned and troubleshoot WebSphere in a clustered environment.
- Responsible for deploying enterprise applications from Admin console and enabling security using LTPA and LDAP for admin console and application components.
- Design and build industry standard REST API library exposing to integrators to utilize API to design their web application.
- Provided support to Development, Testing, Staging and Production, environments
- Installed and Configured JBoss 5.0 on Dev, Test, PPE and Prod Environments and Provided support.
- Configured Connection Pools in JBoss and monitored them.
- Created Weblogic domains, Managed servers, Clusters, machines and start up scripts
- Configured JDBC resources, data sources and bounded to the J2EE applications, configured the connection pools for the data sources
- Created WLST, ANT scripts, and shell scripts to automate the deployment process.
- Involved in creating and configuring the Clustered platform domain for load balancing and fail over and involved in developing controls like EJB Controls, JMS Controls, AI controls and DB Controls by using WebLogic Workshop IDE
- Installed and configured WebLogic, Apache and Sun One Web Servers during the Data Center Server migration
- Implemented Token based REST API for SMS web Service.
- Provided Migration configuration for transactions, security, services, JMSServers and services while transitioning from development to production environment.
Environment: Weblogic10.3, iPlanet4.1, Apache 6.0, SUN Solaris 9, 10, Windows 2003/XP/Vista, WILY Introscope, SSL, Siteminder, RHEL 4.0, Shell Scripting, WLST, ANT, Oracle 9i, JMS, IBM WebSphere Application Server 5.x/6.x/7.x, IBM WebSphere MQ 5.3, IBM DB2, AIX.
Confidential
Weblogic/ Unix System Admin
Responsibilities:
- Worked as Unix System Admin as a support engineer for the servers running 24x7 in Production Environment
- Responsible for servicing trouble-ticket requests, 3rd-party software installation, and user support, in a homogeneous AIX 5.1/4.3.3 environment.
- Performed installation, periodic maintenance updates.
- Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
- Implementation of Flash copy, volume mirroring, Volume copy.
- Configured backup/archive policies using ADSM utility and mksysb images of root volume group to meet data archiving requirements and disaster recovery readiness.
- Installed, configured and administered the WebSphere Application Server on UNIX.
- Administered, configured, tuned and troubleshoot WebSphere in a clustered environment.
- Environment: IBM WebSphere Application Server 5.1.x/ 6.x, IBM AIX (RS6000), Tivoli Storage Manager, Korn shell, NIS, NFS.
Environment: IBM WebSphere Application Server 5.1.x/ 6.x, IBM AIX (RS6000), Tivoli Storage Manager, Korn shell, NIS, NFS.