Karsten is a trained industrial mechanic for machine and system technology and a qualified product designer. Since his studies he has been working on "New Materials in Product Design".From 2005-2013 he was Director Library & Materials Research, significantly involved in building and managing the world's largest materials library for the New York-based consulting company Material ConneXion. In 2013, the materials expert founded MRC - Materials Research & Consulting, a consulting company for innovative and sustainable product development. MRC advises development departments of well-known companies from Europe, Asia and the USA. In 2019 he founded "The Circular Materials GmbH". The company develops and produces tailor-made materials and products for the circular economy.