● Managed and administered IBM WebSphere Application Server (WAS) and Apache Tomcat instancesfor 30 applications, ensuring high availability and optimal performance.● Provided extensive support in .war/.ear files deploy, change management, configured applicationspecific JVM settings changes and application level troubleshooting for UAT, DR (Disaster Recovery) &Production environment for more than 30 applications integrated with WAS on Linux/AIX servers.● Administering Linux, Unix and Windows server performance along with taking important measures tofine-tune the environments are part of daily activities. Volume Management on Linux and WindowsServers, Installing/Managing/Administering different kinds of Applications on Linux and WindowsServers add up to some of the major tasks which are performed in a clustered environment.● Providing extensive support in DR (Disaster Recovery), Change Management, Incident Managementand Request Management. Also worked closely with vendors by raising and updating PMRs (ProblemManagement Records).● Also responsible for all administrative tasks which include components like WebSphere ApplicationServer (JVMs), Apache Web servers, Heap core and Java dump analysis, monitoring and maintainingproper health of servers are the part of our day-to-day work.● Implemented proactive monitoring solutions to detect and mitigate potential bottlenecks, ensuringcontinuous system reliability.● Utilized AppDynamics tool for monitoring application heath and performance.● Experienced with renewing and retiring SSL Certificates using Venafi, creating CSRs for Certificatesthrough WebSphere and installing them on web Servers.● Apart from managing servers and applications, I am also responsible for maintaining Monthly SLADocuments and Weekly Incident analysis.● Provided technical expertise and guidance to junior administrators, fostering skill development andknowledge sharing.

● Completed comprehensive training in Linux system administration, equipping me with the skills to manage complex server environments effectively.● Attained proficiency in Windows administration through rigorous training, enabling me to provide reliable technical support and system management.● Acquired in-depth knowledge of network administration principles, facilitating the design and maintenance of resilient network infrastructures.● Received specialized training in VMware virtualization, allowing me to optimize resource utilization and improve scalability within virtual environments.● Managed and administered IBM WebSphere Application Server (WAS) and Apache Tomcat instancesfor 30 applications, ensuring high availability and optimal performance.● Provided extensive support in .war/.ear files deploy, change management, configured applicationspecific JVM settings changes and application level troubleshooting for UAT, DR (Disaster Recovery) &Production environment for more than 30 applications integrated with WAS on Linux/AIX servers.● Also responsible for all administrative tasks which include components like WebSphere ApplicationServer (JVMs), Apache Web servers, Heap core and Java dump analysis, monitoring and maintainingproper health of servers are the part of our day-to-day work.