On this position, I was responsible to develop concept and design solutions for billing department. I have developed concept and architecture for a communication Interface which enables internal and external applications to exchange data in a standard format. I have also implemented this concept for two applications with Java, JMS- Client, XMLBean. Design of the applications was OO based and Sun Message Queue was used as middle-ware for communication between WebClient and back-end. Each exchanged message was defined according to a XML Schema.  A short scenario of my responsibilities:

• Architecture and design for back-end logic
• Development of use case scenarios, specification documents and UML diagrams
• Development of Schema and XML messages
• Implementation of a multi-tier business processes using CRUD-Pattern with Sun Message Queue, XML, JDBC, Oracle, Eclipse
• Monthly Billing Procedure

I started my job as a consultant with the firm, but as firm changed its policy to hire all key externals and provided them job as internals. I accepted their attractive offer and joined. During my stay with the company, I played different roles in different projects. I have worked as Product owner, Project Lead, Coordinator, and Software developer. As a product owner, I have further developed Test-Tool for mobile-platform regarding multimedia with a team of three developers in Wroclaw (Poland). My team implemented Audio, Picture View, and Video Interfaces. I was mostly involved in developing concept, system architecture, coordination between internal and external supplier, doing defect management and team lead. Project lead defect synchronization, in this position, I was in charge to manage worldwide used defect Synchronization tool. In this role, I was responsible to develop concept and solution with a team of 8 individuals. We have managed around 3,500 system users with 12 products, 7 worldwide sites and 6 International suppliers. As a project coordinator, I was part of product management team and worked to track product development. I worked as Scrum Master to coordinate between product management team and internal-external supplier for defect management, development of product features and to generate progress reports. My key responsibilities during my stay were:

• Product Owner and Scrum Master
• Concept and design of multimedia interfaces for mobile Test-Tool
• Concept and further development of Defect Tracking & Synchronization process
• Implementation of some key interfaces to Clear Quest
• Programming in Perl
• Quality Assurance
• Resource and communication management
• Project cost, risk and procurement management

As a freelancer, I worked on internet-related projects for my company. I developed and marketed new concepts to improve business on the Internet.

• The emphasis of my work lay in the plausible and professional organization of customer?s Internet appearance advanced designing services as well as business logic.
• Products like Web Driving School and Web Auto Workshop contains new market strategies. They provide assistance and information to the customer and in return benefit the Driving school or Auto workshop with more turnovers.
• I also worked as a consultant to provide assistance, to develop new or enhance Software solutions, starting with conception and going through functional and technical specification up to realization and testing.
• My solutions Translation Tool and Internetcafe 1.0 are Java based software. Internetcafe is a time keeper, which helps internet shops to manage internet usage, reveals prices, and gives sum for individual computer and total sum. This application was a Java Applet.
• Internet projects like e-commerce or Content Management System are developed in many languages. Normally such projects are developed first in English and afterwards translated into other required languages. Translation Tool takes over this task of translation and filters out contents of internet pages. These contents are then written into database and thereafter an online translation is made and saved in database. One can manually correct these machine-based translations and afterwards with one mouse click translated pages are regenerated in the required languages.

Involved in analysis, design and implementation of reliable and scalable ?B2B Solutions?. These enterprise solutions were used to accelerate central buying process. They also optimised communication flow among retailer, manufacturer, and supplier called ?Negotiations?. Food and Non-Food industries (firms like EMD, Iberiana, and Globus) are using these solutions to support central buying.

• Architecture, design and implementation of web-based B2B platforms using intershop enfinity and technologies like powertier, J2EE, JSP, JavaScript, RMI, XML, JDBC, SQL, Oracle, Web Sphere and IIS
• Design and implementation complex multi-tier business processes like auction and negotiation. Used mostly Model-View-Controller pattern, Apache Velocity technology, Java Servlets, JavaScript, J2EE, JSP, XML, JDBC, Oracle, IBM Developer Studio and WebSphere
• Development of use case scenarios, specification documents, proof of concept, prototypes, & UML diagrams
• Developed company?s portal for mobile devices and used technologies like WAP, Java Servlets, JDBC, mySQL, and WML
• Quality Assurance according to ISO 9001

Involved in analysis, design and implementation a large-scale financial system. The system was used by one of the world largest Postal Company to deal with its major customers regarding postal and financial services. The system was developed as a platform which provided interface to other systems for communication. The system was mainly used to perform transactions, pricing, invoice generation and other financial services.

• Responsible to analyze, design and implement a platform solution that combines postal and financial services. I implicated ?Customer? interface. For that reason, I was involved in requirement workshops with the customer
• During the design phase, I used Rational Rose to develop Entity, Class and Sequence diagrams. The system was based on Model ? View ? Controller pattern
• Object Oriented software development was used for implementation