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Sr. Middleware Administrator Resume

Raleigh, NC

SUMMARY

  • Extensive experience of 6+ years in the field of IT and in WebLogic Server administration.
  • Expertise in the Administration, Installing, Configuring Web Servers like Apache with JBoss and Tomcat server.
  • 3 Plus years’ experience with Kafka installation, configuration and support.
  • 4 Plus years’ experience with Redis Cache.
  • Proficient in Shell scripting and performance tuning of UNIX systems with proven skills in UNIX System Administration.
  • Solid experience in developing and deploying the applications on multiple Java containers and maintaining Load balancing, High availability and Failover.
  • Expertise in deploying Enterprise Java Beans and J2EE Applications (WAR, JAR and EAR) on WebLogic, JBoss and Tomcat application servers.
  • Extensive experience in configuring and managing secured environments using SSL and digital certificates.
  • Managing and monitoring the JVM performance, Heap Size, garbage collection, JDBC Pools and taking thread dumps.
  • Configured and administered JDBC Connection pools, JMS Connection Factories, WebLogic queues and topics.
  • Extensive experience in finding the Memory Leaks and tuning the JVM Heap Size
  • Configured Web Server plug - in different Application servers.
  • Expertise in performing benchmarking of production environments using JMeter.
  • Provided 24/7 on call support to the development team in both testing and production environment, and analysis (troubleshooting) of log files to resolve issues.
  • Quality Interpersonal, Presentation and Communication skills and ability to maintain good co-ordination with the team members.

TECHNICAL SKILLS

Operating Systems: Red Hat Linux, HP-UX, IBM-AIX, Windows server

AppServer: WebLogic, WebSphere, JBoss EAP, Apache TomcatCaching Server Coherence, Redis, Redis, Hazel Cast

Messaging Server: Kafka, Active MQ, WebSphere MQ

Web Server: Apache, SunOne, Nginx

Scripting Languages: WLST, UNIX Shell Scripting, Python

Monitoring Tools: Splunk, SiteScope, AppDynamics, Atternity, Thousand Eyes, Dynatrace

DevOps: Jenkins, Puppet, Build Forge, Maven, Nexus, GIT, Docker Swarm, Kubernetes

PROFESSIONAL EXPERIENCE

Confidential, RALEIGH NC

Sr. Middleware Administrator

Responsibilities:

  • Responsible for setting up and managing complex middleware stack consisting of different application servers, messaging servers, and caching servers in UNIX platform.
  • Configured and administered WebLogic Application Servers Domains.
  • Configured and managed Tomcat clusters for multiple applications.
  • Installed, configured and managed Kafka clusters for messaging needs of multiple enterprise applications.
  • Created a Redis cluster for the use by multiple applications to replace Coherence 3.7.
  • Administered and managed prolific WebLogic Application Servers Domains.
  • Configured Apache and Tomcat with Ping Federate SSO for two tactical applications used by business for tracking IT vendors.
  • Performance tuning of JVM heap size, garbage collections, Java stack and Native thread and production performance.
  • Applied different patches to vendor software and participated in JAVA upgrades.
  • Participate in security vulnerability remediation in different environments.
  • Actively participated on trouble shooting related to Batch Job processing like UNIX scripts upgradation database node configuration.
  • Involved with the development teams for trouble shooting issues, tuning middleware stack.
  • Provided 24/7 primary and 24/7 secondary on call support twice in month for the production environments.

Confidential, Plano Texas

Sr. Middleware Administrator

Responsibilities:

  • Installed, Configured and Administered WebLogic Server 12c in Development, System test, QA and Production environments.
  • Involved in migration of J2EE application from WebLogic 8.1, 9.2, 10.3 to WebLogic 12c.
  • Support and maintenance of Fusion Middleware Suite with 250 plus APIs
  • Involved with the development teams in trouble shooting and fixing day-to-day problems of the applications on 24/7 schedule.
  • Installed and deployed application on WebLogic application server and performed troubleshooting of issues related.
  • Hands-on experience with Informatica MDM Hub configurations - Data Mappings (Landing, staging and Base Objects), Data validation
  • Created Queries, Query Groups and packages in MDM Hub Console
  • Configured Informatica Data Director (IDD) in reference to the Data Governance of users, IT Managers & Data Stewards
  • Designing of ETL Mappings, Workflows and MDM configuration.
  • Running and Monitoring Workflows.
  • Data Cleansing Analysis, MDM hub configuration.
  • Preparation of technical design document before developing an ETL/mapping.
  • Development of mappings in Informatica (Power Center) With deployments. Assisted in development of Spring Framework Applications including Spring batches.
  • Performed scheduled maintenance activity on the application and webservers.
  • Experienced in WLST, Python and shell scripting to automate tasks.
  • Worked on call 24*7 for the production environments.

Confidential

Sr. Systems Administrator/Layered Products Support

Responsibilities:

  • Migrated, installed and configured a .net application suite (CRM) on Windows Server 2008 and 2012.
  • Created infrastructure for an enterprise application running on Wild Fly 8.0 domain in test, performance and Production environments. This project involved more than 30 JVMs in all environments.
  • Successfully taken the above-mentioned application to production with monitoring integration with AppDynamics.
  • Expanded WebLogic domains for various applications on Internal Cloud infrastructure. In total added 100 plus JVMs in all environments.
  • Added a new caching framework on top of WebLogic to provide cached responses using Coherence 3.7 to decrease service calls response time. In total added 100 coherence JVMs on production, close to 160 JVMs on all environments.
  • SSL Support (Heartbleed, SHA1 to SHA2 Migration), Java Updates.
  • Troubleshooting WebLogic environmental issues.
  • Configured Apache and Tomcat with Ping Federate SSO for two tactical applications used by business for tracking IT vendors.
  • Fixed Shell scripts to solve deployment issues.
  • Profiled applications using MAT/JConsole.
  • Supporting Deployments/Releases
  • Documentation/New team member training

Confidential

Middleware Administrator

Responsibilities:

  • Involved in migration of J2EE application from WebLogic 11g to 12c.
  • Migrated an enterprise application from JBoss EAP 5.0 to 6.0 version.
  • Created a full lifecycle and exceptionally reliable environment for an enterprise app in lower and Production environments with JBoss EAP 6.0, Apache 2.4, F5 LTM, GTM.
  • Support and maintenance of Fusion Middleware Suite with 250 plus APIs
  • Involved with the development teams in trouble shooting and fixing day-to-day problems of the applications on 24/7 schedule.
  • Installed and deployed application on WebLogic application server and performed troubleshooting of issues related with deployments.
  • Involved in load balancing and performance tuning for various projects.
  • Applied patches and service pack updates for WebLogic servers.
  • Testing and profiling to measure the performance of applications.
  • Worked with monitoring tools like HP OVO with WebLogic application server.
  • Worked with development and testing teams to support build and release cycles.
  • Designed an entire messaging interface and Message Topics using WebLogic JMS.
  • Supported applications running on Tomcat 5.5-7.0
  • Used HPSA for building and automation of server on a large scale.
  • Performed baseline remediation and applied the latest oracle patches.
  • Tuned several OS parameters to solve the log rotation and other issues.
  • Performed scheduled maintenance activity on the application and webservers.
  • Experienced in WLST, Python and shell scripting to automate tasks.
  • Worked on call 24*7 for the production environments.

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