curriculum vitae

Contact Information

Marcel Wieczorek
D-10437 Berlin
+49 (0)30 55622095
Cell Phone
+49 (0)162 2417453

Personal Information

Date of Birth
December 5th, 1985
Place of Birth
Marital Status


2005 to 2008
OSZ IMT in Berlin

(professional school)

1998 bis 2005
Louise-Henriette-Gymnasium in Oranienburg

(grammar school)

1992 to 1998
Grundschule Eden in Oranienburg

(elementary school)


09/2008 until 06/2012
night courses at FOM Hochschule für Oekonomie & Management – University of Applied Sciences in Berlin
  • lectures on friday evenings and saturdays
  • branch of study: Business Informatics (B.Sc.)

Employment History

10/2012 until today
Senior Java Developer at Zalando GmbH in Berlin
Job description
  • Analyzing, modelling, optimizing and automating of business processes using BPMN 2.0 and a process engine
  • Uses technologies: Activiti/Camunda Fox, PostgreSQL, SOAP, Spring, myBatis, Apache Tomcat Java 6, Maven2, Signavio, EclipseLink JPA, GWT
07/2008 until 10/2012
Senior J2EE Software Engineer & deputy director application development at assona GmbH (former Jamba Service GmbH) in Berlin
Job description
  • Planning and realization of new software releases
  • Optimizing the backend structure (with Spring and mybatis)
  • Development of a web application for Partner Relationship Management (PRM)
    • Data administration
    • Point of sale (POS)
    • Time scheduling for field staff
  • Refactoring
  • Leading and realization of the project “Jive 5.0” – The entire reimplementation of the custom ERP system with all its components:
    • Customer, contract and claim administration
    • Document management
    • Finance
    • Partner management
  • Used technologies: HTML, CSS, JSP, Servlets, Tiles, Struts, AJAX, SOAP, Spring, myBatis, Oracle, Apache Webserver, Apache Tomcat, Java 6, Maven2, ZK RIA Framework
04/2008 until 07/2010
J2EE Software Engineer at assona GmbH (former Jamba Service GmbH) in Berlin
Job description
  • Planned and accomplished a two-week “Java 6” team training for all developers
  • Porting of all internal and external web applications from BEA Weblogic (Java 1.4) to an Apache Tomcat 6 (Java 6)
  • Porting of the persistence layer (from EJB 2 to Spring and iBatis)
  • Redesign and development of SOAP-Services
  • Used technologies: HTML, CSS, JSP, Servlets, Tiles, Struts, AJAX, SOAP, Spring, iBatis, Oracle, Apache Webserver, Apache Tomcat, Java 6, Maven2
01/2008 to 04/2008
Software developer at a startup company in Berlin
Job description
  • Planning and realization of a web site with shop and customer portal
  • Used technologies: HTML, PHP, JavaScript, MySQL, Apache Webserver
07/2007 to 01/2008
Internship at the Free University of Berlin
Job description
  • Development of final project for degree (Java application with database connectivity, published via Java WebStart in the local network)
  • Software analysis and development
  • Customer support
  • Account administration
  • Hardware repairs
09/2005 to 01/2008
Training for IT specialist (application development) at the German federal pension
  • Early completion of the training due to very good performance
  • Java / J2EE seminars
  • Development of a web shop with JBoss, Eclipse, and Xdoclet HSQL using Java Server Pages, Servlets and EJB
  • HTML, PHP, XML, VB, VBA, Oracle (PL / SQL)
  • Development of an interactive platform for the training department with PHP, MySQL and Apache Tomcat
04/2004 to 06/2005
Service employee in a supermarket next to the Baccalaureate

IT skills

Programming languages
  • Java (J2SE / J2EE) – very good
  • VB, VBA, VB.NET – advanced
  • PHP – advanced
  • COBOL, C/C++, C#, Delphi – basics
  • Eclipse (3.2+)
  • NetBeans (6.5+)
  • Visual Studio (2003+)
Content Management
  • Typo3
  • Joomla
  • WordPress
  • Papaya
Web / application server
  • Apache Webserver
  • Apache Tomcat
  • JBoss
  • (Spring, iBatis/myBatis, JPA, EJB 3)
Web technologies
  • HTML
  • CSS
  • AJAX
  • PHP
  • JSP
  • Servlets
  • Struts (1+)
  • Tiles
  • ZK RIA Framework
  • GWT
Document generation
  • iText
  • Apache FOP
  • JasperReports
  • Oracle
  • PostgreSQL
  • MySQL
  • HSQL
  • MS SQL Server
  • (MS Access)
Build tools
  • Maven (1+)
Versioning tools
  • Concurrent Versions System (CVS)
  • Subversion (SVN)
  • Git
Operating systems
  • Windows (Desktop/Server 32/64 Bit)
  • Damn Small Linux
  • Open Suse (10.2+)
  • Ubuntu (7.1+)
Special software
  • DEMAL AuditBasics
  • Wilken ReportBuilder

Language skills

Mother tongue
Good knowledge


  • Strength and endurance in the gym
  • Film and Television
  • Theater
  • Maintenance / expansion of my own home network
  • Application Development (Java / J2EE)