Foryears Matthias has consulted large international and national companies on software architecture, software development processes and software integration At some point he got a PhD Nowadays, Matthias uses his background in software engineering to help companies bring innovative software solutions to the market Matthias enjoys sharing his knowledge and experience in the classroom, at in person workshops, in online courses or in books Matthias is an instructor at the API University api university , publishes a blog on APIs, is author of several books on APIs and software architecture and regularly speaks at technology conferences