After finishing his PhD thesis on the seakeeping behaviour of high speed ships Pepijn worked as Assistant Professor in Ship Hydromechanics at Delft University of Technology. Besides continuing his work on high speed ships he lectured in ship and offshore hydromechanics on various topics ranging from ship geometry and stability to resistance and propulsion. In 2015 he moved to the Maritime Research Institute Netherlands and became senior project manager seakeeping in the Ships unit specializing in the seakeeping of naval ships managing both model test campaigns and numerical studies. Pepijn is chairman of the Cooperative Research Navies focusing on motions and stability of intact and damaged naval vesels in extreme waves. In 2019 he became team leader of the Navy Team. Pepijn was chairman of the 29th ITTC Seakeeping Committee. In 2022 he became manager of the newly formed Defence department within MARIN.