Vincent Marandon has been the main responsible person for the calibration of H.E.S.S. data in Germany, which is crucially important for data analysis from both H.E.S.S. I and H.E.S.S. II. Vincent has spent 3 years of full time work in Heidelberg on maintaining the calibration of H.E.S.S. I data as well as defining new calibration strategies for H.E.S.S. II data. Over this time, Vincent has almost single handedly developed the calibration of H.E.S.S. II data in Germany, working closely with the French groups to try to identify issues with the new hardware along the way, including rapid variation in pedestal in some regions of the camera. It is safe to say that without Vincent’s hard work no analysis of H.E.S.S. II data would be possible with the German calibration. In addition to his technical work, Vincent has worked on a wide range of scientific topics. These include work on the H.E.S.S. galactic plane survey, as well as exploiting this data for the Supernova Remnant and Pulsar Wind Nebula population studies. He has also made detailed comparisons between the results of the Heidelberg analysis chain and other analysis chains while cross checking the analysis of the supernova remnants W49B and W51C.