Working as middleware designer;- Working on oracle weblogic, apache tomcat, jboss application servers, nginx and apache webservers, redis, apache kafka middleware platforms- Administration, installation, applying security patchs, monitoring of these middleware platforms- Troubleshooting, performance tuning, find solutions for middleware problems, support the operation teams on midlleware platforms- Bringing middleware solutions, helping service admins to migrate applications with various sizes such as fizy, bip, reporting systems, billing systems, VAS systems etc- Using Dynatrace oneagent, Java VisualVM monitoring tools to diagnose complicated problems- Deeply analysing java-heap-thread architecture to determine application performance problems- Applying Oracle Weblogic PSU and bugfix patchs to almost 1000 weblogic servers every 3 months- Having duty that controlling Turkcell middleware inventory that has more than 1500 middleware servers. Using shell scripting and PL/SQL to keep the inventory system alive, transfer and demonstrating all datas on Oracle Application Express- Extensive L3 level and 24/7 support to application admins if needed anytime.

Worked as application server specialist having these roles;- Administration of Websphere Application Server and middleware systems- Installation of new websphere application servers on linux servers and keep them alive- Performance monitoring of websphere application servers by using ITCAM- Monitoring the usage of jvm on servers by using IBM Dignostic and Monitoring Tool- Release & deployment the modules into applications servers- Management of IIS and tomcat applicaiton servers- Administration of application servers on F5 network, adding members and monitor on it- Responsible of having middleware systems with high availability - Management of jenkins to make operations on application servers- Performance monitoring of tomcat servers using Manageengine application manager- Responsible to make sure that all application servers are backed up, create standby and disaster systems- Administration of SAP Business Objects and 4.1- Designing audit reports on BI system- Monitoring SAP Business Objects system and make it run, designing audit reports- Supporting 24/7 to keep all systems alive

Worked as assistant application server specialist as newly graduated having these roles;- Administration of Websphere Application Server and middleware systems- Installation of new websphere application servers on linux servers and keep them alive- Performance monitoring of websphere application servers by using ITCAM- Monitoring the usage of jvm on servers by using IBM Dignostic and Monitoring Tool- Release & deployment the modules into applications servers- Management of IIS and tomcat applicaiton servers- Administration of application servers on F5 network, adding members and monitor on it- Responsible of having middleware systems with high availability - Management of jenkins to make operations on application servers- Performance monitoring of tomcat servers using Manageengine application manager- Responsible to make sure that all application servers are backed up, create standby and disaster systems- Administration of SAP Business Objects and 4.1- Designing audit reports on BI system- Monitoring SAP Business Objects system and make it run, designing audit reports- Supporting 24/7 to keep all systems alive