Janek Schwarz: Experiences

Professional Experiences

Designed and developed multi-threaded, responsive GUI applications with Swing and AWT
Developed sophisticated layouts using various layout managers
Developed new Swing components, enhanced existing ones
Have a deep understanding of the Swing look and feel architecture (javax.swing.plaf). Fixed several flaws with Windows look and feel
Worked with related 3rd party products, such as NetClue, JGoodies, WinLaf, JNIWrapper, InfoBus, JavaHelp
On Windows, used COM automation for integrating ActiveX components in Swing applications
Developed installers using InstallAnywhere for application deployment and upgrades
Used Beanshell scripting language for rapid prototyping and enterprise application integration

Used these standards in several applications and projects
- XML 1.0
- Document validation using DTD, XML Schema and Schematron
- Document processing using XSLT, SAX 2.0 and W3C DOM
- Document creation and styling using DocBook, XSL:FO, XHTML 1.0 and CSS
Worked with tools and APIs:
- Xerces and Crimson XML parsers
- Xalan XSLT processor, extended XSL stylesheets with the help of Xalan extension framework
- Sophisticated XML document processing with Castor, Digester, Betwixt, JXPath and ECS

Developed a public key infrastructure (PKI) based on digital signature, online certificate validation (OSCP) and time stamp service (TSP)
Designed and implemented a http-tunneled secure communication protocol using the IAIK toolkit
Have experience with the German signature law (SigG) and the related adjudication (or the lack thereof)

Prototyped and developed the first version of the server component of a communication service. Based on Servlets and Enterprise Java Beans.
Used Velocity, JavaMail, Quartz libraries in various projects
Designed and implemented various fault-tolerance layers on top of CORBA implementations
Worked with real-time CORBA implementations
Integrated legacy real-time and fault-tolerant systems with CORBA-based environments

Worked with various standards and tools: UN/EDIfact, EANCOM, OpenTrans, Edifix
EDIfact:
- EDI converter for SAP R/3 based on RFC, Netweaver XI and webMethods Integration Server
- EDI converter for Microsoft Dynamics NAV (Navsion) and AX (Axapta)
- EDI converter for Sage (Office Line and Classic Line)
- Universal EDI converter
EDI solutions:
Standards:
- EDIfact
- EANCOM
- EDITEC
Mapped inhouse formats in various formats to EDIfact