Projekte

Dies ist eine Aufstellung aller meiner Projekte, die ich als Informatiker mitgestaltet habe. Es sind mittlerweile über 25 Jahre Erfahrung in professioneller Softwareentwicklung mit Java. Angefangen mit den ersten Gehversuchen von Java bis zu µ-Services auf Java-Basis in einer Cloudumgebung. Eine weite Reise.

Vom Umgang mit digitaler Archäologie in Legacy-Systemen.

Projekte

Jeder Software-Architekt kennt das: Ein historisch gewachsenes System, über 15 Jahre alt. Der Code läuft stabil, aber die Dokumentation ist lückenhaft, veraltet oder schlicht nicht existent. Wer hier Änderungen plant oder neue Entwickler onboarden muss, betreibt digitale Archäologie. Vor dieser Herausforderung stand ich kürzlich bei einem großen Konzernkunden. Das Entwicklerteam wochenlang mit dem manuellen Schreiben […]

Vom Umgang mit digitaler Archäologie in Legacy-Systemen. Weiterlesen »

10/2023 – 04/2026: Transportation (Rails)

Projekte

Modernization of a productive application to current software components. An existing internal application will be converted to modern and currently secure components as part of the contract.Struts-1, Spring 3, Hibernate 3, and similar outdated systems will be replaced. Stability in production had to be guaranteed under all circumstances for the changeover duration. Details Activities Conception,

10/2023 – 04/2026: Transportation (Rails) Weiterlesen »

07/2023 – Today: Learning the TALL-Stack (Advanced Training)

Projekte

Creation of a model-driven approach for the TALL stack. Within the openSource project cgv19 a model driven approach for the TALL stack (TailwindCSS, AlpineJS, Livewire, Laravel) and the Laravel extension Filament-3 was developed. The project is developed and available as an openSource project on https://github.com/carstenSpraener/cgV19 It can generate a runnable application from a diagram, as

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07/2023 – Today: Prototype of a Symfony Application (Own Development)

Projekte

Comparison of the cross-language concepts of Spring Boot and Symfony. In the context of further education and for training purposes, an application was developed with Spring Boot and Symfony in parallel. The goal was to compare Spring-Boot and Symfony concepts and develop a small application that can be run on a server. The application was

07/2023 – Today: Prototype of a Symfony Application (Own Development) Weiterlesen »

06/2023: IT Service Industry

Projekte

KeyCloak as SAML-Provider for a Spring-Boot Application. In preparation for a workshop, a Spring-Boot application was created with KeyCloak as the identity provider. A user can log into the application via SAML or a Magic Link. The Magic Link is sent to the user by mail. Details Activities Implementation of the entire prototype. Creation of

06/2023: IT Service Industry Weiterlesen »

10/2014 – 02/2022: E-Commerce

Projekte

Backend-Application for eBay-Dealers (Book market). The project creates and maintains a platform for eBay dealers. It simplifies the creation of new offers and tracks the stock with the offers on eBay. It integrates data from eBay, book databases, and distributors. The system was built with Vaadin on a GlassFish container. Later, it was migrated to

10/2014 – 02/2022: E-Commerce Weiterlesen »

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