The VHIR-MSCA-PF-2026.003 Postdoctoral Fellowship focuses on precision modelling of Familial Hypomagnesemia with Hypercalciuria and Nephrocalcinosis (FHHNC) using patient-derived kidney organoids to uncover disease mechanisms, phenotypic variability, and sex-specific aspects, while evaluating therapeutic candidates through drug repurposing. The successful candidate will join the Kidney Pathophysiology Research Group at Vall d'Hebron University Hospital in Barcelona, working within a multidisciplinary environment that integrates stem cell technology, genome engineering, and translational nephrology to advance understanding of this ultra-rare renal tubulopathy and develop novel precision medicine strategies.