• Deployment of JBoss and Tomcat and Apache on SuSe and Red Hat Linux in a DevOps capacity within a secure environment
• Optimization and Migration of Java Applications running under Jboss into Puppet, Hiera and using Git and Gitlab to manage and rollout changes
• Wrote JBoss CLI scripts for auditing and configuring JBoss instances Developed Shell/python scripts for controlling instances and collecting application information and communicating with the CheckMK monitoring
• Documentation with Confluence

• Migrating banking applications to a new infrastructure including implementing the application monitoring for both server and cloud based systems
• Preparing the applications for deployment using Ansible and takeover by new operating team.
• Use of Elastic Search/Kibana for log file analysis.

• Java Application and Web server administration. Member of Middleware group responsible for running Weblogic(10-12), Tomcat(6-9), Red Hat Jboss EAP(6 and 7) Java application servers, ESB and Apache web servers.
• Configuration of Java Application servers for application integration into the UniCredit environment and providing support for Banking and Risk Management systems for a multinational bank.
• Product support for operations and planning migrations of legacy systems to new hardware and Cloud based architectures.
• Automation of deployments using Unix scripting for Solaris and Redhat Linux platforms and tools such as HPSA. Unix scripts, Perl and Jython (for Weblogic configuration) to assist with application administration.
• Provided out of office hours deployment/support and also On-call support.
• Responsible for Integration of all Java Server and Apache instances into the IBM Tivoli monitoring systems.

• Supporting Web based Instant Online Credit Systems running on Java platforms with connections to external services such as SCHUFA for credit worthiness checks
• Perl and Unix programs for automation of builds and deployments
• Application support for the mainly J2EE based Java applications using Oracle 10 RAC and J Boss, Apache and load-balanced with F5 loadbalancers
• Scripted solutions for interfacing JBoss and Apache to the Nagios monitoring
• Some Red Hat Admin and analysis of networking, mail and performance problems

• Germany in Unix and Web Server Administration Operations.
• Administration of Unix servers(Sun Solaris 10 on Sparc servers, RHEL 4,5,6 Suse 9/10/11, AIX) running Apache Webserver, Java Application Servers(Tomcat, Websphere) and Trading Applications.
• Deployment of Java and Web Applications, Tomcat/Apache configuration, maintaining Trading feeds and troubleshooting the various applications.
• Supporting Unix based infrastructure for hosted Investment banks and Development teams.
• Fixing mail (sendmail, exim) and security problems according to guidelines.
• Providing Certificate Management for Webserver and Messaging products including
  setting up a PKI infrastructure for some in-house projects.
• Creating and customizing of RPMs of standard and in-house developed applications for virtualized servers installed via Yum and Red Hat Satellite as part of the migration project.
• Scripting in Unix shell and Perl.

• JBoss and Linux Administrator for hosted platforms serving the Insurance businesses of the Postbank and Citibank (Deutschland)
• My role was to convert the existing Java/J2EE system from BEA Weblogic 32 bit running on RH3 to JBoss 4.3 64 bit running on RH4(virtualized running VMWare ESX)
• This involved designing and administering a variety of load balanced web based systems and also clustered systems with Stateful Session Bean failover
• Complex mathematical libraries were also ported to the new system
• Connection to Mainframe computers was using ActiveMQ and Tibco products

• Music Download (Web and Mobile)
• Systems Integrator and System Administrator for Commercial Video and FullTrack Music Download Hosting for Web and Mobile.
• The systems used a mixture of J2EE compliant web-based technologies(Java, JBoss, Apache, Tomcat) running on Linux and Solaris 10(Sparc) servers to provide music and video download services, management and billing/clearing house functionality.
• Oracle 10g databases were used throughout along with Perl and Unix Shell scripting. The role involved sizing and setting up hardware(servers, Cisco switches, Nortel Load balancers), integrating/configuring Java-based components according to customer requirements and rolling out into the production environment during scheduled maintenance windows. Some Oracle DBA work was also required.
• I was also responsible for maintaining and enhancing the productivity tools Subversion, Bugzilla, Trac/Wiki and sendmail systems for the development teams

• Mobile Applications, Vodafone Global,Mannesmannufer, Duesseldorf Java Application Deployment
• Engineer Customization of the Mobile Portal application and integration of customer?s products into the Vodafone network 
• Hardware Solaris 9/10 Sparc servers running JBoss/Tomcat/Apache Web./Oracle 9g database

• Mobile Video Streaming, Siemens Information and Communication Mobile Solutions
• Designed and implemented systems for Video streaming to mobile handsets (Live and Video On Demand) using Real Networks software for Real Media, 3GPP and SDP protocols

• Mobile Internet Applications/ WAP Gateway
• Mobile Applications, Siemens Information and Communication Mobile Solutions
• Designed/Implemented systems for mobile Internet that run WAP, MultiMedia-Messaging (MMS) and Streaming applications.

• System Administrator for large Internet Service Provider.
• Responsible for migrating Internet Systems and applications from BSD to Solaris 2.6/7on Sun Netra and Enterprise Servers.
• Built secured Solaris 2.6/7 for a global ISP operating on a 24/7 basis and customized the Solaris Jumpstart server for network installs. Specific tasks included postmaster (sendmail,Qmail), newsmaster, webhosting and system architect and anything else that comes up with the operations of the computer systems of a large ISP. Set up some of the infrastructure including data storage systems with Veritas Volume Manager and File system, as well as configuring Network Appliance Filers and Netcache products.
• Application support programs were written in Perl, shell scripts and C.

• Responsible for day to day tasks and performance testing and capacity planning of new equipment

• System administrator, planning and designing networks for customers.
• system administration of Solaris systems, network design (LAN), system integration and system performance/tuning (UNIX and network) for both local and customer’s systems. Support software (scripts, small programs) were written in Korn shell, C and some Perl.Designed company internet/intranet.

I wrote software in C++ for data acquisition systems that run under UNIX.I was also required to do some system and network administration configuring networks, installing software and shell scripts

• Programming in C/Assembler for Chip/Magnetic Card readers and Payphone systems.
• Unix/PC systems used to host development environment. Some system administration for Unix.

Programmer C and Assembler on payphones and related management/payment systems

• The company manufactured Telephones and small PABXs
• I was responsible for writing software (C and Assembler) and designing hardware for the above products