Oltmann Riemer is the Head of the Department of High-Precision Technology and the Head of the Laboratory for Precision Machining (LFM) at the Leibniz Institute for Materials Engineering (IWT). He received his Dr.-Ing. degree from the University of Bremen in 2001. His research interests focus on ultra-precision and micro-machining processes, specifically diamond turning, micro-milling, and microtopography characterization. He has authored over 200 scientific publications and serves as a Council Member of the European Society for Precision Engineering and Nanotechnology (euspen). He is a board member of the German Competence Center UPOB.