This is the homepage of Markus Gärtner, Certified Scrum Trainer (CST), Certified Large-Scale Scrum (LeSS) Pracitioner, software craftsman who specializes in testing, development, people and systems thinking.

In 2005 I received my German diploma in computer science from the University of Bielefeld. After university I joined Orga Systems GmbH as a software tester, and later as a software testing group leader. Since 2010 I work for it-agile GmbH in Hamburg, Germany, as an Organizational Design Consultant.

I specialized in Acceptance Test-driven development, Exploratory Testing, and skillful human testing which includes the whole development cycle from idea, vision, coding, finally on to delivery and maintenance. In the more recent years I became a Scrum Master, Scrum Coach, Certified Scrum Trainer (CST), and Organizational Design Consultant being involved in Large-Scale Scrum adoptions.

In the Miagi-Do school of Software Testing I am a black-belt instructor (2nd dan), and contribute to the Software Craftsmanship movement, including the larger German-speaking community Softwerkskammer. On a regular basis I present at Agile and testing conferences in Germany and the whole world as well as local user groups in the current areas of my work.