Middleware Administrator with 6+ years of experience in managing, configuring, and troubleshooting various middleware platforms. Proficient in ensuring optimal performance, security, and availability of enterprise applications. Demonstrated ability to work in fast-paced environments, collaborate with cross-functional teams, and implement process improvements. Proven expertise in middleware technologies, such as JBoss, Oracle WebLogic, and Apache Tomcat. Seeking opportunities to contribute to the stability and growth of a dynamic organization.
Worked for more than 12 months in client location (Bangladesh) with E-VISA Work Permit for Leading Telecom Company GRAMEENPHONE.
Overview
6
6
years of professional experience
Work History
Senior System Administrator
Wipro Limited
Bengaluru
06.2023 - Current
Handling all the aspects of administration tasks such as day-to-day monitoring and maintenance, Installation, Configuration, Clustering, Deploying Applications, Troubleshooting, Load Balancing, Performance Tuning and Maintenance of JBOSS EAP, Weblogic and Tomcat Application Server.
As JBoss EAP Administrator, perform, monitor and manage upgrades, deployments and other changes to the servers and applications.
Configured High available clustered JBoss EAP App server environment using multiple Domain managed servers.
Encrypted the passwords in JBoss EAP EAP configuration files using Vault.
Worked with team members to create RFC requests to schedule production application deployment and maintenance activities.
Monitor Cron jobs and coordinate with Production control teams to resolve the alerts.
Configured Secure Sockets Layers (SSL) for data encryption, client authentication on Servers and renewal of wildcard SSL every year.
Performed Performance tuning of JVM heap size, GC, Java stack trace analysis.
Provided 24/7 on call support in both testing and production environments.
Worked in taking and analysis of thread dumps, core dumps, server hang and high CPU utilization conditions
Monitored error logs, fixed problems and tuned parameters in JBoss EAP environment.
Automated the L1 tasks by using the shell script and cron jobs.
Configured user accounts, permissions and access rights in accordance with company guidelines in Oracle OBIEE.
Assisted in developing disaster recovery plans for mission-critical applications.
Monitored system performance on a daily basis and identified potential areas of improvement.
Checking daily servers health check and providing the monthly availability to the client.
Proficient in deployment and troubleshooting of JAR, WAR and EAR files in domain and clustered environments of JBoss EAP server.
Handling Incidents, Change Requests, Problems and Service Requests.
Created detailed documentation and architectures of existing systems and processes for future references.
Resolving all assigned tickets with in the SLA time.
Sr. IT Administrator-Middleware (OnSite)
Wipro IT services Bangladesh Ltd
Dhaka
06.2022 - 05.2023
Linux troubleshooting with infra hands on over JBOSS EAP, WebLogic servers in Clustered environments and handling global telecom customers.
Maintained and administered various Middleware application servers like WebLogic, JBOSS, Apache and Tomcat.
Checking daily servers health check and providing the monthly availability to the client.
Handling more than 500 critical Middleware Servers.
Automated Health Check Report has been implemented.
Resolving all assigned tickets with in SLA time.
Providing Day/Weekly Support and Maintenance for Middleware Servers.
Troubleshooting production performance issue (Monitoring Application Server Error log).
Resolved Most Critical Middleware Server Performance Issues though identify the Root cause.
Actively working on VA Mitigation to comply with the SOC team policies.
Encrypted the passwords in JBoss EAP EAP configuration files using Vault.
Assisted in developing disaster recovery plans for mission-critical applications.
Client interaction to make sure the high priority P1 tickets are taken care properly.
Monitor Cron jobs and coordinate with Production control teams to resolve the alerts.
Provided 24/7 on call support in both testing and production environments.
Experienced in using Verbose GC for garbage collection and tuning Heap size to reduce memory leakage.
Monitored error logs, fixed problems and tuned parameters in JBoss EAP environment.
Trained junior staff members on best practices related to system administration tasks.
Checking daily servers health check and providing the monthly availability to the client.
Supporting other teams during the daily planned activities like OS patch, DB patch/ Upgradation and application deployments.
Resolving all assigned tickets with in the SLA time.
SSL Certificate renewal.
Senior System Administrator
Wipro Limited
Bengaluru
11.2021 - 05.2022
Maintained and administered various Middleware application servers like WebLogic, JBOSS, Apache and Tomcat.
Deployment and troubleshooting of JAR, WAR and EAR files in domain and clustered environments of JBOSS server and Weblogic.
Collaborated with other team members to develop new system architectures to meet changing business requirements.
Integration of Apache web server with JBoss EAP application server using mod_jk to communicate between Web server and Application Server.
Create, maintain, configuration and tune services such as JDBC Data Sources and Connection Pools on JBOSS Application Server.
Providing the user access based on role using the RBAC in JBOSS EAP.
Actively working on VA Mitigation to comply with the SOC team policies.
Assisted in developing disaster recovery plans for mission-critical applications.
Installed patches on servers according to the patch management policy of the organization.
Monitored system performance on a daily basis and identified potential areas of improvement.
Involved in various critical outages and team meetings to solve various issues and discuss future plans and steps.
Coordination and implementation of production releases.
Analyzing various server logs and thread dumps and heap dump to perform Root cause Analysis on JBoss EAP Application Server.
Resolved Most Critical Middleware Server Performance Issues though identify the Root cause.
Providing 24x7 on-call production support and troubleshooting problems related to Application Servers.
Software Engineer
Lrnr Global Infotech Pvt Ltd
Bengaluru
11.2017 - 11.2021
Installation, Configuring and troubleshooting the JBoss, Weblogic and Apache Tomcat Servers.
Worked on both Standalone and Domain mode.
Experience in deploying .war applications in Apache tomcat.
Expertise in Installation and Configuration of Apache Web server.
Deployment and troubleshooting of JAR, WAR, and EAR files in domain and clustered environments.
On-call support (24x7) Monitoring and maintaining multiple applications at production.
Integration of Apache server with jboss app server using mod_jk plugins.
Creation of server groups and profile assignments to the server groups in a domain.
Implement Highly Available Middleware Infrastructure for J2EE applications based on the requirements.
Involved in configuration of (Jboss EAP, Apache Tomcat Application Servers) resources like JDBC DataSources, JDBC Providers and Connection Pooling to connect to the DB2 and Oracle.
Involved in configuring SSL for Apache HTTP server and Jboss Application Server.
Involved in patching activities on Prod and Non-Prod environments.
Participating in weekly server maintenance and OS upgrades.
Responsible for creating clusters, cluster members to implement High Availability and Work Load Management.
Troubleshooting issues related to application slowness, struck threads and Out of Memory issues.
Took Heap Dumps and Core Dumps for analyze JVM crashes/issues.
Participate in process meetings to describe about the implementation plan with proper redundancy and impact analysis for development, maintenance and upgrade activities.
Client interaction to make sure the high priority P1 tickets are taken care properly.
Attending calls and group chats for high priority incidents and attending Service Delivery Review meeting to explain the resolution for the P2 & P3 tickets which helps in building the Known Error Database.
Handling Incidents, Change Requests, Problems and Service Requests.