Lead Java Developer

10/2014 – 4/2018

- Implement change requests and bugfixes to existing system (GUI,
Business-logic, DB).
- Contact with client to get and clarify requirements, estimate tasks
- Leading small team of developers

AngularJS, Enterprise Javabeans, J2EE, Oracle Database, XSLT (XSL Transformation)

3/2013 – 9/2014

Change requests implementation in existing Client-server
application for evaluation of possible shop locations.

Apache Tomcat, Hibernate (Java), Java SE, Oracle Database

11/2008 – 2/2013

- Extensions to Standard database and data migration
- Screens customization (templates and screen definitions)
- Business objects extension
- Development of interfaces to internal systems, customization of standard
interfaces (DATEV, DTA, etc)

Apache Tomcat, Hibernate (Java), J2EE, Spring Framework

9/2007 – 10/2008

Design an implementation of Controlling and commissioning system.
Verification of concept.
Database design, modelling, creation and maintenance including
historization and customer customisation and internationalization
Datev Export module design and implementation.

Hibernate (Java), J2EE, Oracle Database, Spring Framework

5/2006 – 8/2007

Implementing frontend, business logic and some backend corrections.
Project was:
Migration and integration from existing banking software and online transaction systems of a group of Sparkassen-banks into one internet portal and e-banking system. The portal allows each bank to fully personalize portal layout and content. Innovative combination of customizable content with online transaction system.

Apache Struts, Hibernate (Java), IBM DB2, J2EE, JavaScript, Wildfly

7/2005 – 4/2006

Business processes implementation according to documentation, web dialogs design and implementation, batch processes implementation, bug fixing.
Project description: Development of web and batch applications as a management system for central (issued on mainframe in headquarters) and local (issued on PC within the local store) changes to prices and promotions.

Apache Struts, Apache Tomcat, Eclipse, J2EE, Junit, Oracle Database

10/2004 – 6/2005

Changes and Extension-Plugins for GIS application for
electrical networks Facil++
Changes were done in Client-Server application including server side logic and Swing Gui.

Apache Tomcat, Java SE, Oracle Database, SQL

4/2003 – 9/2003

Develop JSP based Web-Client working with
existing J2EE Server.

Enterprise Javabeans, HTML, IBM DB2, J2EE, Javaserver Pages