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Stefan Wiegreffe has a diverse work experience in various roles, starting from being a Dozent at Hamburg University of Applied Sciences in 2006. Stefan then worked as a Wissenschaftlicher Mitarbeiter at the University of Hamburg, where they contributed to research projects and published scientific articles. In 2004, Stefan became Selbständig, working as a Web Developer for various clients and specializing in PHP programming and front-end development. Later, they joined ICANS GmbH as a Team Lead Web Development, overseeing multiple teams and implementing changes in processes and operational excellence. From there, Stefan moved on to Hamburg Community Experiences GmbH, where they worked as the Head of IT for PokerStrategy.com. Currently, they hold the position of Chief Technology Officer at esome advertising technologies GmbH.

Stefan Wiegreffe attended the University of Hamburg from 1997 to 2002, where they obtained a Diplom in Informatik. In addition to their formal education, they also received certifications including the PRINCE2 Foundation Level in February 2015 and the Zend Certified Engineer PHP 5.3 in January 2012. The institutions for these certifications were not provided.