Dieter Deffert is responsible for the channel and partner business of Empolis. During his time as a mathematics student (with a minor in business administration and a special focus on computer science), Deffert acquired his first professional experience as a software developer at IBM and eps Bertelsmann (now Empolis). Beginning in 1994, he held various positions at those companies which took him from software development to project management, product management and, ultimately, department management. Another important stage of his career was the operational management, from 2006 to 2009, of the THESEUS Program Office, which was then the largest IT support program in Germany and had a total budget of over 200 million euros. In 2010, Deffert joined the management of AWEK AG in Barsbüttel, where he was responsible for product sales and software development of retail solutions. With the spin-off of Empolis in 2012, he returned as a member of the management team and took over business development for strategic customers and projects.