The GraWIToN project aims to train 13 ESRs in the gravitational wave search field. This research field is in an impressive expansion period, thank to a new generation of detector under installation in these years, to the promise of the exciting discovery in 5 years from now of this kind of signal, predicted in the General Relativity of Einstein, to the enlarging of the world wide scientific community, with new actors coming from emerging countries and thanks to the boosting action due to the Einstein Telescope project, previously supported by the European Commission with the FP7-Design Study tool. The ESRs will be embedded in this exciting research environment and will be trained in the cutting edge technologies adopted in the Gravitational Wave detectors. Complex optical apparatuses, high power and low noise lasers, high reflective coatings, optical simulation and modelling using parallel computing systems are the crucial technologies used in gravitational wave detectors that are extremely interesting in the industrial sector, as highlighted by the participation of 3 private companies as full participants and one as associated partner. The multidisciplinary aspect is completed by the astrophysics training, fundamental for a future researcher in this field, and by an expressly multidisciplinary module, addressed to the management and outreaching skills. The participation to this project of research institutes and universities will guarantee the possibility for the ESR to achieve to doctorate degree.