Ulrich Cech

mecom - Medien-Communikations-GmbH (Consultant/Java-Architect – Freelancer)

• Various IT consulting and development topics (optimisation MongoDB, security topics (DDoS defence, BSI conformity, ...)
• Integration of Bean Validation for standardised verification, code reviews
• Support in the development of the new architecture for the warning platform

Aareal FirstFinancial Solutions AG (Java-Architect/Developer – Freelancer)

• Further development of a deposit management software after company takeover
• Migration from Springframework to Spring-Boot

LogPay Financial Services GmbH (Java-Architect/Developer – Freelancer)

• Integration of AmazonPay (Billing Agreement)
• Integration of Paydirekt (oneClick)
• New UI-Design of checkout-pages

Founder of pinnwand.online (https://pinnwand.online)

• Complete application design (from the idea to the launched product)
• JavaEE8-application running on Payara Server and PostgreSQL

Cubic Transportation Systems GmbH (Java-Architect/Developer – Freelancer)

• Integration of Payment-Service-Providers in Microservice-Architecture
• Optimization of the Docker system architecture/environment
• New conception of the central purchasing process of the Internet platform

Founder of the OpenSource-Project "Lottoritter"

• Complete application design (from the idea to the launched product)
• JavaEE8-application running on Payara Server version 5.0; MongoDB-Atlas; MongoDB-Morphia as persistence framework; JSF/JavaScript as frontend-technology, OAuth2
• SourceCode available on Github: https://github.com/UlrichCech/lottoritter-platform

Architect/Java-Developer

• Functional enhancement of a Deposit management software
• Conception of a complete refactoring of the application
• Functional enhancement of a renter-portal software
• Administration of the renter-portal on Amazon AWS
• Complete reconception and implementation of a Microservice for the routing of account-statements/bookings between different banks and target systems

Architect/Java-Developer

• Introducing JavaEE 7
• Conceptual design and implementation of a JavaEE Web-Applikation for replacement and functional enhancement of an IT-systems for the media industry
• Implementation of service-/change requests

Senior Java-Developer

• Design and implementation of a B2B-REST-API for integration into partner systems
• Implementing/integration of new payment-provider
• Further development on the existing application platform
• Migration from Glassfish 3.1.2 to Payara 4.1 (JavaEE6 to JavaEE7)
• Optimizing the database access (MongoDB)

Senior Java-Developer

• Implemented a self-learning module for mobile device detection from the HTTP-UserAgents
• Implemented a MapReduce-Application for analyzation of openRTB-auctions
• Implemented a MapReduce-Application for analyzation of several different logfile-types and importing the calculated business-critical data to a visualisation application

Senior Java-Developer

• Design and implementation of the central archive system for the german customs business applications. The archive must consider many allowance in accordance with the law (facts like GDPdU)
• Based on the SAP-RFC-API, I designed and implemented a communication application, which can convert any SAP-RFC or IDocs to a webservice call and back again. This application is a major module in the company's ASP-solutions.
• Designed and implemented an SAP-RFC-Server-API for the base application framework. This API is used in several large applications which needs SAP-Connectivity.
• Involved in the design and partially implemented the new communication-component of the company. The software is prepared for multiple communication protocols like FTAM/openFT, X.400, FTP, eMail, WebService etc. This application serves as a very-high-performance communication engine with multiple input/output-ports and a global and generic data pool for the business-applications. This engine includes an EDIFACT-framework for the communication with the German customs.

Java-Developer

• Architected, designed and implemented a web application for a SAP-Application. SAP-Workflow-Items could be managed by this web-interface (e.g. accounting of invoice positions, forward or decline items to other SAP-users; display the scanned TIFF invoices or other archived files).
• Designed and implemented an interface module for communication with a Saperion©-Archive system.
• I designed and developed a Web-Application for the Support-Team, which stores all informations of the communication/data-transfer with the german customs. This application was used as a temporary archive-system. Important values of the messages (EDIFACT files) are parsed and used as key fields for further inquest. The archive has to handle several millions of entries. The web interface was based on JavaServerFaces (JSF).
• As a developer, I extended an existent SSL-Proxy with the ability of multi-target configuration and HTTP-Basic-Authentication for proxy and destination as well as gzip-handling.
• Architected, designed and implemented a file-based load-balancing/dispatching application. The criteria for dispatching could be configured with a SwingGUI, the application works as a NT-Service or Unix-deamon. The system sends/receives all customs messages for your ASP-solution (more than 10000 messages per day with 300 clients), so that high-performance and availability were the key-requirements.
• I have been responsible for the complete connectivity of the german customs business software to German customs for nearly three years. This includes an overview of all servers with the communication software, router configurations, network communication, database maintenance, support for technical and functional questions, release planning etc. 
I was involved in extending the existing communication software (developing a web-interface with a simple, JSP-like language which comes with the existent communication software).

Java-Developer

• Architected, designed and implemented a web application for statistics of an intensive care unit.
• This project was done in my spare time for further education.

Akademie für Datenverarbeitung Böblingen

Abschluss mit Auszeichnung, Note 1.4

Studium der Medizin an der Georg-August-Universität Göttingen