Rehrmann joined TOMRA through the acquisition of TITECH in 2004. He was the founder and Managing Director of Real Vision Systems Gmbh, which became a part of TITECH in 2002. In 2013, Rehrmann was appointed TOMRA Group Chief Technology Officer and Head of Business Area Sorting Solutions. One of the pioneers within development of optical systems for waste sorting applications, Rehrmann started his career as an assistant professor for computer vision at the University of Koblenz. TOMRA Sorting Solutions (TSS) creates sensor-based technologies for sorting, peeling and process analytics within four business streams (recycling, mining, food and specialty products). With 15 test facilities worldwide, access to a vast array of technologies along with a large R&D department and an enhanced service offering with a shared service network, TSS is a leading provider of sensor-based sorting solutions worldwide. Volker Rehrmann received his PhD in Computer Science from the University of Koblenz, and has a Master in Computer Science from the University of Paderborn. He is a German native and is based in Koblenz, Germany.

 Sensor-based technologies , recycling, mining