The Germans Trias i Pujol Research Institute is seeking a Junior researcher at the Childhood Liver Oncology group to support spatial proteomic studies and experimental assessment of the mutational status of key genes altered in pediatric liver cancer. The candidate will process tissue samples, contribute to spatial profiling workflows, and perform molecular assays for mutation detection and validation. They will integrate spatial, molecular, and pathological data to better characterize tumor heterogeneity and clinically relevant alterations. Experience in molecular biology, histology-based techniques, cancer genetics, and basic bioinformatics will be valued.