As a PhD candidate, I am focusing on numerical modelling of fluid-injection induced seismicity in geothermal systems. This PhD project is part of the NWO-funded GeoFirst project, which aims to advance sustainable geothermal exploitation and enhance seismic hazard management. I would like to develop numerical models to simulate fluid injection-induced fracture and flow behavior, as well as permeability evolution in fracture systems, utilizing fracture networks mapped from geothermal field sites and experimentally derived fracture slip-permeability-friction relationships.  Additionally, I will develop a field-scale model based on lithological and structural models, and its results will be calibrated against field monitoring data.