This invited seminar showcased my recent first-author contributions to the study of super massive black holes (SMBHs) in dwarf galaxies using the AURIGA cosmological simulations. I presented the results of Arjona-Gálvez et al. 2024, where I demonstrated how SMBHs suppress star formation in low-mass galaxies through AGN feedback, providing new insight into dwarf galaxy quenching. I also highlighted Arjona-Gálvez et al. 2025, which introduced a new, physically motivated definition of galaxy size across different simulation suites, with direct implications for measuring BH–galaxy coevolution. Presenting these two complementary works together underlined both my expertise in simulation analysis and my ability to lead independent projects. Hosted at UCR, an institution with strong expertise in galaxy evolution, the talk broadened my international profile, fostered exchanges with observers and theorists, and established the foundation for future collaborations on SMBH formation and growth.