2011 - dato

Java Web Middleware Specialist

Telecommunication. Specialist operation of billing systems, 8 mio clients, Apache Web frontends, Glassfish Application Server, Oracle database backend, Tuxedo Messaging. Performance- and error analysis. Scripting of deployments and nagios monitoring(ant,jython,perl,shell). Wiki setups. Administration of Solaris HA cluster and of all Oracle, javadb and mysql databases.

2009 - 2010

Infrastructure and WebSphere Specialist

Insurance Group, WebSphere specialist programming automated deployments (ant,jython,perl,shell), preparing changes, solving production problems, WebSphere 7 concepts and one pass installations. Planning mixed cell setups and migration strategies. Integration of WebSphere with UC4 and Tivoli TSAM. Training of team members.

2008

AIX System Administrator

Setup and configuration of high availibility DB2 und SAP systems. Tools, environment : SAN, NFS, NIS, automount, IBM pblade and p570 Server.

2007-2008

Build and Deployment Manager, infrastructure WebSphere

Legal and finiancial consulting group Management of build (Portal Application, WebSphere v6/WebSphere Portal v5.1, 6.1) maven 2, ant, wsadmin, jacl/jython, XSLT) Deployment in DEV, STAGE, PROD. Providing solutions for infrastructure demands. Environment: Oracle 10g. SLES Unix, Vmware.

2007

Java Deployment Architect Tomcat

Online car sales platform. Design of Deplyoment Architecture, using tomcat 5, apache, mod_jk, mysql, Java Spring/Hibernate Application, subversion repository.

2006-2007

WebSphere Specialist

International Bank in Munich. WebSphere 5 and WebSphere 6 Setup and Deployment.

2004-2006

J2EE WebSphere specialist and UNIX admin

Data center of International US bank. Specialist for installation, configuration and administration of WebSphere installations for credit card and data warehouse applications. Created shell and jacl scripts to completely configure WebSphere 5.1 and 6.0.2 from scratch, thus streamling setup and deployment processes. Programmed Java to create encrypted local user registry, in addition to LDAP. Programmed and used a JVMPI/JVMTI performance analyzer with class instrumentation to track performance issues. Solved security issues concerning SSL encryption. Administration of UNIX/WebSphere environment including Solaris, AIX, DB2, Oracle, LDAP, Veritas Cluster, MQ, Solaris, AIX, Connect:Direct, Sun ONE/iplanet Web Server

2002-2004

Consultant concept/design/admin J2EE n-tier

Pension fund / e-government. Consultant of the project management. Administrator J2EE application (dialog and batch processing of XML insurance data, applying MQSeries, EdgeServer, WebSphere 4.0.4, Oracle 8.1.7, integrated DMS system). Providing concepts for Veritas Backups, Cluster layout planning, cluster scripting and cluster testing. Admistration of 30 midrange Solaris 8 UNIX servers. scripting specialist, (C,java,ant,wscp,XML,PL/SQL,perl,ksh). Scripting for cluster, XML parsing, release build,deployment.

2001-2002

C / C++ Programmer Security Scanner

Pension fund / e-government. Programming C/C++ to scan 300 UNIX servers and 12.000+ PCs.

in 2001

Administrator Solaris / Sun E10000 / Sun Cluster

Telco industry.  Administration of 5 E10K, several midrange (Sunfire 4800), T3 A3500 and A5000 storage, Sun Cluster 2.2 and 3.0. Automation of user management with perl, Oracle 8i and ssh. Troube shooting cluster software. Scripting of cluster bug workarounds, Veritas Volume Manager Scripting. Step by step planning of server upgrades and storage resizing.

2000-2001

Planning / Concept

Telco industry.  Update of framework for UNIX operations instructions valid for 3000+ servers. Linux usage scenario design. Evaluation of Sun Cluster 2.2 and Veritas Cluster Server (VCS) 1.3.0.

in 2000

Administrator Sun E10000

Banking industry. Administration of Sun E10000 Server, europe wide available credit card application.

1999-2000

Administrator AIX SP

International Bank. Administration of IBM RS/6000, high availability HACMP SP, Oracle, Lotus Notes und SAP R/3 applications.

1998-1999

Analyses / Programming

Telco industry. Guidelines for UNIX usage in compute centers.C programming of security scanner, UNIX platforms HP, IBM, SUN, DEC. Linux concepts.

1997-1998

Team leader UNIX

Banking industry. Team leader of 10 consultants, to build a central configuration and installation database for internationally operating stockexchange brokers.

1994-1997

Administrator / IT analyst

Pension fund / e-government. Automation of software distribution. C Programming, RPC UNIX/Windows, for 300+ servers and 10.000+ PCs.

1993-1994

Presales Consultant

Automobile industry. Planning, installation, setup of AIX RS/6000 Servers for CAD (Catia) systems.

1992-1993

Administrator UNIX

Virtual Reality art agency. Administrator SUN, SGI and Macintosh.

1990-1991

Presales Consultant.

Database Redesign. Installation and trouble shooting of ERP Software.

1987-1990

Consultant, USA

Telco Industry: performance Testing, C Test routines for TCP/IP high performance message switch. Test suite design. Molecular Modeling / pharma industry: C programming for researcher modelling language (CLI), applying lex/yacc. Chip Industry: System Tester for UNIX-like OO system.

1987

Master of Computer Science

University of Dortmund. final mark: outstanding.